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Date: Sat, 20 May 2017 15:13:25 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, Jiri Slaby <jslaby@...e.cz>
Subject: Re: Linux 4.11.2
diff --git a/Makefile b/Makefile
index 9dc2aec1c2e5..d7b64830a7b7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 11
-SUBLEVEL = 1
+SUBLEVEL = 2
EXTRAVERSION =
NAME = Fearless Coyote
diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c
index c2b131527a64..a08d7a93aebb 100644
--- a/arch/arm/kvm/psci.c
+++ b/arch/arm/kvm/psci.c
@@ -208,9 +208,10 @@ int kvm_psci_version(struct kvm_vcpu *vcpu)
static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
{
- int ret = 1;
+ struct kvm *kvm = vcpu->kvm;
unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
unsigned long val;
+ int ret = 1;
switch (psci_fn) {
case PSCI_0_2_FN_PSCI_VERSION:
@@ -230,7 +231,9 @@ static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
break;
case PSCI_0_2_FN_CPU_ON:
case PSCI_0_2_FN64_CPU_ON:
+ mutex_lock(&kvm->lock);
val = kvm_psci_vcpu_on(vcpu);
+ mutex_unlock(&kvm->lock);
break;
case PSCI_0_2_FN_AFFINITY_INFO:
case PSCI_0_2_FN64_AFFINITY_INFO:
@@ -279,6 +282,7 @@ static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
{
+ struct kvm *kvm = vcpu->kvm;
unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
unsigned long val;
@@ -288,7 +292,9 @@ static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
val = PSCI_RET_SUCCESS;
break;
case KVM_PSCI_FN_CPU_ON:
+ mutex_lock(&kvm->lock);
val = kvm_psci_vcpu_on(vcpu);
+ mutex_unlock(&kvm->lock);
break;
default:
val = PSCI_RET_NOT_SUPPORTED;
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index f5ea0ba70f07..fe39e6841326 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -240,6 +240,12 @@ static inline u8 kvm_vcpu_trap_get_fault_type(const struct kvm_vcpu *vcpu)
return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_FSC_TYPE;
}
+static inline int kvm_vcpu_sys_get_rt(struct kvm_vcpu *vcpu)
+{
+ u32 esr = kvm_vcpu_get_hsr(vcpu);
+ return (esr & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT;
+}
+
static inline unsigned long kvm_vcpu_get_mpidr_aff(struct kvm_vcpu *vcpu)
{
return vcpu_sys_reg(vcpu, MPIDR_EL1) & MPIDR_HWID_BITMASK;
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 0e26f8c2b56f..79168b38eeba 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1638,8 +1638,8 @@ static int kvm_handle_cp_64(struct kvm_vcpu *vcpu,
{
struct sys_reg_params params;
u32 hsr = kvm_vcpu_get_hsr(vcpu);
- int Rt = (hsr >> 5) & 0xf;
- int Rt2 = (hsr >> 10) & 0xf;
+ int Rt = kvm_vcpu_sys_get_rt(vcpu);
+ int Rt2 = (hsr >> 10) & 0x1f;
params.is_aarch32 = true;
params.is_32bit = false;
@@ -1690,7 +1690,7 @@ static int kvm_handle_cp_32(struct kvm_vcpu *vcpu,
{
struct sys_reg_params params;
u32 hsr = kvm_vcpu_get_hsr(vcpu);
- int Rt = (hsr >> 5) & 0xf;
+ int Rt = kvm_vcpu_sys_get_rt(vcpu);
params.is_aarch32 = true;
params.is_32bit = true;
@@ -1805,7 +1805,7 @@ int kvm_handle_sys_reg(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
struct sys_reg_params params;
unsigned long esr = kvm_vcpu_get_hsr(vcpu);
- int Rt = (esr >> 5) & 0x1f;
+ int Rt = kvm_vcpu_sys_get_rt(vcpu);
int ret;
trace_kvm_handle_sys_reg(esr);
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index d5e2b8309939..021db31b40ba 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -561,6 +561,7 @@ static ssize_t nvram_pstore_read(u64 *id, enum pstore_type_id *type,
static struct pstore_info nvram_pstore_info = {
.owner = THIS_MODULE,
.name = "nvram",
+ .flags = PSTORE_FLAGS_DMESG,
.open = nvram_pstore_open,
.read = nvram_pstore_read,
.write = nvram_pstore_write,
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index 9b42b6d1e902..ef5a9cc66fb8 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -16,7 +16,7 @@
#ifndef BOOT_BOOT_H
#define BOOT_BOOT_H
-#define STACK_SIZE 512 /* Minimum number of bytes for stack */
+#define STACK_SIZE 1024 /* Minimum number of bytes for stack */
#ifndef __ASSEMBLY__
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 9d05c7e67f60..a45e2114a846 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -761,7 +761,7 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_CORE, hsw_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_GT3E, hsw_rapl_init),
- X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_X, hsw_rapl_init),
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_X, hsx_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_XEON_D, hsw_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNL, knl_rapl_init),
diff --git a/arch/x86/include/asm/pmem.h b/arch/x86/include/asm/pmem.h
index 529bb4a6487a..e2904373010d 100644
--- a/arch/x86/include/asm/pmem.h
+++ b/arch/x86/include/asm/pmem.h
@@ -103,7 +103,7 @@ static inline size_t arch_copy_from_iter_pmem(void *addr, size_t bytes,
if (bytes < 8) {
if (!IS_ALIGNED(dest, 4) || (bytes != 4))
- arch_wb_cache_pmem(addr, 1);
+ arch_wb_cache_pmem(addr, bytes);
} else {
if (!IS_ALIGNED(dest, 8)) {
dest = ALIGN(dest, boot_cpu_data.x86_clflush_size);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index bad6a25067bc..9fa5b8164961 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -529,14 +529,16 @@ int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq,
static int pv_eoi_put_user(struct kvm_vcpu *vcpu, u8 val)
{
- return kvm_vcpu_write_guest_cached(vcpu, &vcpu->arch.pv_eoi.data, &val,
- sizeof(val));
+
+ return kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.pv_eoi.data, &val,
+ sizeof(val));
}
static int pv_eoi_get_user(struct kvm_vcpu *vcpu, u8 *val)
{
- return kvm_vcpu_read_guest_cached(vcpu, &vcpu->arch.pv_eoi.data, val,
- sizeof(*val));
+
+ return kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.pv_eoi.data, val,
+ sizeof(*val));
}
static inline bool pv_eoi_enabled(struct kvm_vcpu *vcpu)
@@ -2285,8 +2287,8 @@ void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu)
if (!test_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention))
return;
- if (kvm_vcpu_read_guest_cached(vcpu, &vcpu->arch.apic->vapic_cache, &data,
- sizeof(u32)))
+ if (kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data,
+ sizeof(u32)))
return;
apic_set_tpr(vcpu->arch.apic, data & 0xff);
@@ -2338,14 +2340,14 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu)
max_isr = 0;
data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24);
- kvm_vcpu_write_guest_cached(vcpu, &vcpu->arch.apic->vapic_cache, &data,
- sizeof(u32));
+ kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data,
+ sizeof(u32));
}
int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr)
{
if (vapic_addr) {
- if (kvm_vcpu_gfn_to_hva_cache_init(vcpu,
+ if (kvm_gfn_to_hva_cache_init(vcpu->kvm,
&vcpu->arch.apic->vapic_cache,
vapic_addr, sizeof(u32)))
return -EINVAL;
@@ -2439,7 +2441,7 @@ int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data)
vcpu->arch.pv_eoi.msr_val = data;
if (!pv_eoi_enabled(vcpu))
return 0;
- return kvm_vcpu_gfn_to_hva_cache_init(vcpu, &vcpu->arch.pv_eoi.data,
+ return kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.pv_eoi.data,
addr, sizeof(u8));
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ccbd45ecd41a..421a069b5429 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1813,7 +1813,7 @@ static void kvm_setup_pvclock_page(struct kvm_vcpu *v)
struct kvm_vcpu_arch *vcpu = &v->arch;
struct pvclock_vcpu_time_info guest_hv_clock;
- if (unlikely(kvm_vcpu_read_guest_cached(v, &vcpu->pv_time,
+ if (unlikely(kvm_read_guest_cached(v->kvm, &vcpu->pv_time,
&guest_hv_clock, sizeof(guest_hv_clock))))
return;
@@ -1834,9 +1834,9 @@ static void kvm_setup_pvclock_page(struct kvm_vcpu *v)
BUILD_BUG_ON(offsetof(struct pvclock_vcpu_time_info, version) != 0);
vcpu->hv_clock.version = guest_hv_clock.version + 1;
- kvm_vcpu_write_guest_cached(v, &vcpu->pv_time,
- &vcpu->hv_clock,
- sizeof(vcpu->hv_clock.version));
+ kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
+ &vcpu->hv_clock,
+ sizeof(vcpu->hv_clock.version));
smp_wmb();
@@ -1850,16 +1850,16 @@ static void kvm_setup_pvclock_page(struct kvm_vcpu *v)
trace_kvm_pvclock_update(v->vcpu_id, &vcpu->hv_clock);
- kvm_vcpu_write_guest_cached(v, &vcpu->pv_time,
- &vcpu->hv_clock,
- sizeof(vcpu->hv_clock));
+ kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
+ &vcpu->hv_clock,
+ sizeof(vcpu->hv_clock));
smp_wmb();
vcpu->hv_clock.version++;
- kvm_vcpu_write_guest_cached(v, &vcpu->pv_time,
- &vcpu->hv_clock,
- sizeof(vcpu->hv_clock.version));
+ kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
+ &vcpu->hv_clock,
+ sizeof(vcpu->hv_clock.version));
}
static int kvm_guest_time_update(struct kvm_vcpu *v)
@@ -2092,7 +2092,7 @@ static int kvm_pv_enable_async_pf(struct kvm_vcpu *vcpu, u64 data)
return 0;
}
- if (kvm_vcpu_gfn_to_hva_cache_init(vcpu, &vcpu->arch.apf.data, gpa,
+ if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.apf.data, gpa,
sizeof(u32)))
return 1;
@@ -2111,7 +2111,7 @@ static void record_steal_time(struct kvm_vcpu *vcpu)
if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED))
return;
- if (unlikely(kvm_vcpu_read_guest_cached(vcpu, &vcpu->arch.st.stime,
+ if (unlikely(kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.st.stime,
&vcpu->arch.st.steal, sizeof(struct kvm_steal_time))))
return;
@@ -2122,7 +2122,7 @@ static void record_steal_time(struct kvm_vcpu *vcpu)
vcpu->arch.st.steal.version += 1;
- kvm_vcpu_write_guest_cached(vcpu, &vcpu->arch.st.stime,
+ kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.st.stime,
&vcpu->arch.st.steal, sizeof(struct kvm_steal_time));
smp_wmb();
@@ -2131,14 +2131,14 @@ static void record_steal_time(struct kvm_vcpu *vcpu)
vcpu->arch.st.last_steal;
vcpu->arch.st.last_steal = current->sched_info.run_delay;
- kvm_vcpu_write_guest_cached(vcpu, &vcpu->arch.st.stime,
+ kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.st.stime,
&vcpu->arch.st.steal, sizeof(struct kvm_steal_time));
smp_wmb();
vcpu->arch.st.steal.version += 1;
- kvm_vcpu_write_guest_cached(vcpu, &vcpu->arch.st.stime,
+ kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.st.stime,
&vcpu->arch.st.steal, sizeof(struct kvm_steal_time));
}
@@ -2243,7 +2243,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
if (!(data & 1))
break;
- if (kvm_vcpu_gfn_to_hva_cache_init(vcpu,
+ if (kvm_gfn_to_hva_cache_init(vcpu->kvm,
&vcpu->arch.pv_time, data & ~1ULL,
sizeof(struct pvclock_vcpu_time_info)))
vcpu->arch.pv_time_enabled = false;
@@ -2264,7 +2264,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
if (data & KVM_STEAL_RESERVED_MASK)
return 1;
- if (kvm_vcpu_gfn_to_hva_cache_init(vcpu, &vcpu->arch.st.stime,
+ if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.st.stime,
data & KVM_STEAL_VALID_BITS,
sizeof(struct kvm_steal_time)))
return 1;
@@ -2878,7 +2878,7 @@ static void kvm_steal_time_set_preempted(struct kvm_vcpu *vcpu)
vcpu->arch.st.steal.preempted = 1;
- kvm_vcpu_write_guest_offset_cached(vcpu, &vcpu->arch.st.stime,
+ kvm_write_guest_offset_cached(vcpu->kvm, &vcpu->arch.st.stime,
&vcpu->arch.st.steal.preempted,
offsetof(struct kvm_steal_time, preempted),
sizeof(vcpu->arch.st.steal.preempted));
@@ -3127,6 +3127,12 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
(events->exception.nr > 31 || events->exception.nr == NMI_VECTOR))
return -EINVAL;
+ /* INITs are latched while in SMM */
+ if (events->flags & KVM_VCPUEVENT_VALID_SMM &&
+ (events->smi.smm || events->smi.pending) &&
+ vcpu->arch.mp_state == KVM_MP_STATE_INIT_RECEIVED)
+ return -EINVAL;
+
process_nmi(vcpu);
vcpu->arch.exception.pending = events->exception.injected;
vcpu->arch.exception.nr = events->exception.nr;
@@ -7355,6 +7361,12 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
mp_state->mp_state != KVM_MP_STATE_RUNNABLE)
return -EINVAL;
+ /* INITs are latched while in SMM */
+ if ((is_smm(vcpu) || vcpu->arch.smi_pending) &&
+ (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED ||
+ mp_state->mp_state == KVM_MP_STATE_INIT_RECEIVED))
+ return -EINVAL;
+
if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) {
vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED;
set_bit(KVM_APIC_SIPI, &vcpu->arch.apic->pending_events);
@@ -8536,8 +8548,9 @@ static void kvm_del_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn)
static int apf_put_user(struct kvm_vcpu *vcpu, u32 val)
{
- return kvm_vcpu_write_guest_cached(vcpu, &vcpu->arch.apf.data, &val,
- sizeof(val));
+
+ return kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apf.data, &val,
+ sizeof(val));
}
void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/um/ptrace_64.c b/arch/x86/um/ptrace_64.c
index a5c9910d234f..09a085bde0d4 100644
--- a/arch/x86/um/ptrace_64.c
+++ b/arch/x86/um/ptrace_64.c
@@ -125,7 +125,7 @@ int poke_user(struct task_struct *child, long addr, long data)
else if ((addr >= offsetof(struct user, u_debugreg[0])) &&
(addr <= offsetof(struct user, u_debugreg[7]))) {
addr -= offsetof(struct user, u_debugreg[0]);
- addr = addr >> 2;
+ addr = addr >> 3;
if ((addr == 4) || (addr == 5))
return -EIO;
child->thread.arch.debugregs[addr] = data;
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 37cb5aad71de..07b13e26215e 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -2023,7 +2023,8 @@ static unsigned long __init xen_read_phys_ulong(phys_addr_t addr)
/*
* Translate a virtual address to a physical one without relying on mapped
- * page tables.
+ * page tables. Don't rely on big pages being aligned in (guest) physical
+ * space!
*/
static phys_addr_t __init xen_early_virt_to_phys(unsigned long vaddr)
{
@@ -2044,7 +2045,7 @@ static phys_addr_t __init xen_early_virt_to_phys(unsigned long vaddr)
sizeof(pud)));
if (!pud_present(pud))
return 0;
- pa = pud_pfn(pud) << PAGE_SHIFT;
+ pa = pud_val(pud) & PTE_PFN_MASK;
if (pud_large(pud))
return pa + (vaddr & ~PUD_MASK);
@@ -2052,7 +2053,7 @@ static phys_addr_t __init xen_early_virt_to_phys(unsigned long vaddr)
sizeof(pmd)));
if (!pmd_present(pmd))
return 0;
- pa = pmd_pfn(pmd) << PAGE_SHIFT;
+ pa = pmd_val(pmd) & PTE_PFN_MASK;
if (pmd_large(pmd))
return pa + (vaddr & ~PMD_MASK);
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 35c5af1ea068..e4ebd79de679 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -412,7 +412,8 @@ void blk_integrity_register(struct gendisk *disk, struct blk_integrity *template
bi->flags = BLK_INTEGRITY_VERIFY | BLK_INTEGRITY_GENERATE |
template->flags;
- bi->interval_exp = ilog2(queue_logical_block_size(disk->queue));
+ bi->interval_exp = template->interval_exp ? :
+ ilog2(queue_logical_block_size(disk->queue));
bi->profile = template->profile ? template->profile : &nop_profile;
bi->tuple_size = template->tuple_size;
bi->tag_size = template->tag_size;
diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index ef59d9926ee9..8af664f7d27c 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -45,6 +45,11 @@ struct aead_async_req {
char iv[];
};
+struct aead_tfm {
+ struct crypto_aead *aead;
+ bool has_key;
+};
+
struct aead_ctx {
struct aead_sg_list tsgl;
struct aead_async_rsgl first_rsgl;
@@ -723,24 +728,146 @@ static struct proto_ops algif_aead_ops = {
.poll = aead_poll,
};
+static int aead_check_key(struct socket *sock)
+{
+ int err = 0;
+ struct sock *psk;
+ struct alg_sock *pask;
+ struct aead_tfm *tfm;
+ struct sock *sk = sock->sk;
+ struct alg_sock *ask = alg_sk(sk);
+
+ lock_sock(sk);
+ if (ask->refcnt)
+ goto unlock_child;
+
+ psk = ask->parent;
+ pask = alg_sk(ask->parent);
+ tfm = pask->private;
+
+ err = -ENOKEY;
+ lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
+ if (!tfm->has_key)
+ goto unlock;
+
+ if (!pask->refcnt++)
+ sock_hold(psk);
+
+ ask->refcnt = 1;
+ sock_put(psk);
+
+ err = 0;
+
+unlock:
+ release_sock(psk);
+unlock_child:
+ release_sock(sk);
+
+ return err;
+}
+
+static int aead_sendmsg_nokey(struct socket *sock, struct msghdr *msg,
+ size_t size)
+{
+ int err;
+
+ err = aead_check_key(sock);
+ if (err)
+ return err;
+
+ return aead_sendmsg(sock, msg, size);
+}
+
+static ssize_t aead_sendpage_nokey(struct socket *sock, struct page *page,
+ int offset, size_t size, int flags)
+{
+ int err;
+
+ err = aead_check_key(sock);
+ if (err)
+ return err;
+
+ return aead_sendpage(sock, page, offset, size, flags);
+}
+
+static int aead_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
+ size_t ignored, int flags)
+{
+ int err;
+
+ err = aead_check_key(sock);
+ if (err)
+ return err;
+
+ return aead_recvmsg(sock, msg, ignored, flags);
+}
+
+static struct proto_ops algif_aead_ops_nokey = {
+ .family = PF_ALG,
+
+ .connect = sock_no_connect,
+ .socketpair = sock_no_socketpair,
+ .getname = sock_no_getname,
+ .ioctl = sock_no_ioctl,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .getsockopt = sock_no_getsockopt,
+ .mmap = sock_no_mmap,
+ .bind = sock_no_bind,
+ .accept = sock_no_accept,
+ .setsockopt = sock_no_setsockopt,
+
+ .release = af_alg_release,
+ .sendmsg = aead_sendmsg_nokey,
+ .sendpage = aead_sendpage_nokey,
+ .recvmsg = aead_recvmsg_nokey,
+ .poll = aead_poll,
+};
+
static void *aead_bind(const char *name, u32 type, u32 mask)
{
- return crypto_alloc_aead(name, type, mask);
+ struct aead_tfm *tfm;
+ struct crypto_aead *aead;
+
+ tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
+ if (!tfm)
+ return ERR_PTR(-ENOMEM);
+
+ aead = crypto_alloc_aead(name, type, mask);
+ if (IS_ERR(aead)) {
+ kfree(tfm);
+ return ERR_CAST(aead);
+ }
+
+ tfm->aead = aead;
+
+ return tfm;
}
static void aead_release(void *private)
{
- crypto_free_aead(private);
+ struct aead_tfm *tfm = private;
+
+ crypto_free_aead(tfm->aead);
+ kfree(tfm);
}
static int aead_setauthsize(void *private, unsigned int authsize)
{
- return crypto_aead_setauthsize(private, authsize);
+ struct aead_tfm *tfm = private;
+
+ return crypto_aead_setauthsize(tfm->aead, authsize);
}
static int aead_setkey(void *private, const u8 *key, unsigned int keylen)
{
- return crypto_aead_setkey(private, key, keylen);
+ struct aead_tfm *tfm = private;
+ int err;
+
+ err = crypto_aead_setkey(tfm->aead, key, keylen);
+ tfm->has_key = !err;
+
+ return err;
}
static void aead_sock_destruct(struct sock *sk)
@@ -757,12 +884,14 @@ static void aead_sock_destruct(struct sock *sk)
af_alg_release_parent(sk);
}
-static int aead_accept_parent(void *private, struct sock *sk)
+static int aead_accept_parent_nokey(void *private, struct sock *sk)
{
struct aead_ctx *ctx;
struct alg_sock *ask = alg_sk(sk);
- unsigned int len = sizeof(*ctx) + crypto_aead_reqsize(private);
- unsigned int ivlen = crypto_aead_ivsize(private);
+ struct aead_tfm *tfm = private;
+ struct crypto_aead *aead = tfm->aead;
+ unsigned int len = sizeof(*ctx) + crypto_aead_reqsize(aead);
+ unsigned int ivlen = crypto_aead_ivsize(aead);
ctx = sock_kmalloc(sk, len, GFP_KERNEL);
if (!ctx)
@@ -789,7 +918,7 @@ static int aead_accept_parent(void *private, struct sock *sk)
ask->private = ctx;
- aead_request_set_tfm(&ctx->aead_req, private);
+ aead_request_set_tfm(&ctx->aead_req, aead);
aead_request_set_callback(&ctx->aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG,
af_alg_complete, &ctx->completion);
@@ -798,13 +927,25 @@ static int aead_accept_parent(void *private, struct sock *sk)
return 0;
}
+static int aead_accept_parent(void *private, struct sock *sk)
+{
+ struct aead_tfm *tfm = private;
+
+ if (!tfm->has_key)
+ return -ENOKEY;
+
+ return aead_accept_parent_nokey(private, sk);
+}
+
static const struct af_alg_type algif_type_aead = {
.bind = aead_bind,
.release = aead_release,
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.accept = aead_accept_parent,
+ .accept_nokey = aead_accept_parent_nokey,
.ops = &algif_aead_ops,
+ .ops_nokey = &algif_aead_ops_nokey,
.name = "aead",
.owner = THIS_MODULE
};
diff --git a/drivers/Makefile b/drivers/Makefile
index 2eced9afba53..8f8bdc9e3d29 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -104,6 +104,7 @@ obj-$(CONFIG_USB_PHY) += usb/
obj-$(CONFIG_USB) += usb/
obj-$(CONFIG_PCI) += usb/
obj-$(CONFIG_USB_GADGET) += usb/
+obj-$(CONFIG_OF) += usb/
obj-$(CONFIG_SERIO) += input/serio/
obj-$(CONFIG_GAMEPORT) += input/gameport/
obj-$(CONFIG_INPUT) += input/
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 1ac70744ae7b..50f56d066936 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3462,6 +3462,14 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
if (unlikely(!dev->dma_mode))
goto invalid_opcode;
+ /*
+ * We only allow sending this command through the block layer,
+ * as it modifies the DATA OUT buffer, which would corrupt user
+ * memory for SG_IO commands.
+ */
+ if (unlikely(blk_rq_is_passthrough(scmd->request)))
+ goto invalid_opcode;
+
if (unlikely(scmd->cmd_len < 16)) {
fp = 15;
goto invalid_fld;
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index 5262a2077d7a..11f30e5cec2c 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -287,6 +287,9 @@ static int bcm_open(struct hci_uart *hu)
hu->priv = bcm;
+ if (!hu->tty->dev)
+ goto out;
+
mutex_lock(&bcm_device_lock);
list_for_each(p, &bcm_device_list) {
struct bcm_device *dev = list_entry(p, struct bcm_device, list);
@@ -307,7 +310,7 @@ static int bcm_open(struct hci_uart *hu)
}
mutex_unlock(&bcm_device_lock);
-
+out:
return 0;
}
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index 9e271286c5e5..73306384af6c 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -307,6 +307,9 @@ static int intel_set_power(struct hci_uart *hu, bool powered)
struct list_head *p;
int err = -ENODEV;
+ if (!hu->tty->dev)
+ return err;
+
mutex_lock(&intel_device_list_lock);
list_for_each(p, &intel_device_list) {
@@ -379,6 +382,9 @@ static void intel_busy_work(struct work_struct *work)
struct intel_data *intel = container_of(work, struct intel_data,
busy_work);
+ if (!intel->hu->tty->dev)
+ return;
+
/* Link is busy, delay the suspend */
mutex_lock(&intel_device_list_lock);
list_for_each(p, &intel_device_list) {
@@ -889,6 +895,8 @@ static int intel_setup(struct hci_uart *hu)
list_for_each(p, &intel_device_list) {
struct intel_device *dev = list_entry(p, struct intel_device,
list);
+ if (!hu->tty->dev)
+ break;
if (hu->tty->dev->parent == dev->pdev->dev.parent) {
if (device_may_wakeup(&dev->pdev->dev)) {
set_bit(STATE_LPM_ENABLED, &intel->flags);
@@ -1056,6 +1064,9 @@ static int intel_enqueue(struct hci_uart *hu, struct sk_buff *skb)
BT_DBG("hu %p skb %p", hu, skb);
+ if (!hu->tty->dev)
+ goto out_enqueue;
+
/* Be sure our controller is resumed and potential LPM transaction
* completed before enqueuing any packet.
*/
@@ -1072,7 +1083,7 @@ static int intel_enqueue(struct hci_uart *hu, struct sk_buff *skb)
}
}
mutex_unlock(&intel_device_list_lock);
-
+out_enqueue:
skb_queue_tail(&intel->txq, skb);
return 0;
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index cca6e5bc1cea..51ba67de862e 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -891,6 +891,7 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result,
* for details on the intricacies of this.
*/
int left;
+ unsigned char *data_to_send;
ssif_inc_stat(ssif_info, sent_messages_parts);
@@ -899,6 +900,7 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result,
left = 32;
/* Length byte. */
ssif_info->multi_data[ssif_info->multi_pos] = left;
+ data_to_send = ssif_info->multi_data + ssif_info->multi_pos;
ssif_info->multi_pos += left;
if (left < 32)
/*
@@ -912,7 +914,7 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result,
rv = ssif_i2c_send(ssif_info, msg_written_handler,
I2C_SMBUS_WRITE,
SSIF_IPMI_MULTI_PART_REQUEST_MIDDLE,
- ssif_info->multi_data + ssif_info->multi_pos,
+ data_to_send,
I2C_SMBUS_BLOCK_DATA);
if (rv < 0) {
/* request failed, just return the error. */
diff --git a/drivers/crypto/ccp/ccp-dev-v3.c b/drivers/crypto/ccp/ccp-dev-v3.c
index 7bc09989e18a..c46eeda71595 100644
--- a/drivers/crypto/ccp/ccp-dev-v3.c
+++ b/drivers/crypto/ccp/ccp-dev-v3.c
@@ -315,17 +315,73 @@ static int ccp_perform_ecc(struct ccp_op *op)
return ccp_do_cmd(op, cr, ARRAY_SIZE(cr));
}
+static void ccp_disable_queue_interrupts(struct ccp_device *ccp)
+{
+ iowrite32(0x00, ccp->io_regs + IRQ_MASK_REG);
+}
+
+static void ccp_enable_queue_interrupts(struct ccp_device *ccp)
+{
+ iowrite32(ccp->qim, ccp->io_regs + IRQ_MASK_REG);
+}
+
+static void ccp_irq_bh(unsigned long data)
+{
+ struct ccp_device *ccp = (struct ccp_device *)data;
+ struct ccp_cmd_queue *cmd_q;
+ u32 q_int, status;
+ unsigned int i;
+
+ status = ioread32(ccp->io_regs + IRQ_STATUS_REG);
+
+ for (i = 0; i < ccp->cmd_q_count; i++) {
+ cmd_q = &ccp->cmd_q[i];
+
+ q_int = status & (cmd_q->int_ok | cmd_q->int_err);
+ if (q_int) {
+ cmd_q->int_status = status;
+ cmd_q->q_status = ioread32(cmd_q->reg_status);
+ cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
+
+ /* On error, only save the first error value */
+ if ((q_int & cmd_q->int_err) && !cmd_q->cmd_error)
+ cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
+
+ cmd_q->int_rcvd = 1;
+
+ /* Acknowledge the interrupt and wake the kthread */
+ iowrite32(q_int, ccp->io_regs + IRQ_STATUS_REG);
+ wake_up_interruptible(&cmd_q->int_queue);
+ }
+ }
+ ccp_enable_queue_interrupts(ccp);
+}
+
+static irqreturn_t ccp_irq_handler(int irq, void *data)
+{
+ struct device *dev = data;
+ struct ccp_device *ccp = dev_get_drvdata(dev);
+
+ ccp_disable_queue_interrupts(ccp);
+ if (ccp->use_tasklet)
+ tasklet_schedule(&ccp->irq_tasklet);
+ else
+ ccp_irq_bh((unsigned long)ccp);
+
+ return IRQ_HANDLED;
+}
+
static int ccp_init(struct ccp_device *ccp)
{
struct device *dev = ccp->dev;
struct ccp_cmd_queue *cmd_q;
struct dma_pool *dma_pool;
char dma_pool_name[MAX_DMAPOOL_NAME_LEN];
- unsigned int qmr, qim, i;
+ unsigned int qmr, i;
int ret;
/* Find available queues */
- qim = 0;
+ ccp->qim = 0;
qmr = ioread32(ccp->io_regs + Q_MASK_REG);
for (i = 0; i < MAX_HW_QUEUES; i++) {
if (!(qmr & (1 << i)))
@@ -370,7 +426,7 @@ static int ccp_init(struct ccp_device *ccp)
init_waitqueue_head(&cmd_q->int_queue);
/* Build queue interrupt mask (two interrupts per queue) */
- qim |= cmd_q->int_ok | cmd_q->int_err;
+ ccp->qim |= cmd_q->int_ok | cmd_q->int_err;
#ifdef CONFIG_ARM64
/* For arm64 set the recommended queue cache settings */
@@ -388,14 +444,14 @@ static int ccp_init(struct ccp_device *ccp)
dev_notice(dev, "%u command queues available\n", ccp->cmd_q_count);
/* Disable and clear interrupts until ready */
- iowrite32(0x00, ccp->io_regs + IRQ_MASK_REG);
+ ccp_disable_queue_interrupts(ccp);
for (i = 0; i < ccp->cmd_q_count; i++) {
cmd_q = &ccp->cmd_q[i];
ioread32(cmd_q->reg_int_status);
ioread32(cmd_q->reg_status);
}
- iowrite32(qim, ccp->io_regs + IRQ_STATUS_REG);
+ iowrite32(ccp->qim, ccp->io_regs + IRQ_STATUS_REG);
/* Request an irq */
ret = ccp->get_irq(ccp);
@@ -404,6 +460,11 @@ static int ccp_init(struct ccp_device *ccp)
goto e_pool;
}
+ /* Initialize the ISR tasklet? */
+ if (ccp->use_tasklet)
+ tasklet_init(&ccp->irq_tasklet, ccp_irq_bh,
+ (unsigned long)ccp);
+
dev_dbg(dev, "Starting threads...\n");
/* Create a kthread for each queue */
for (i = 0; i < ccp->cmd_q_count; i++) {
@@ -426,7 +487,7 @@ static int ccp_init(struct ccp_device *ccp)
dev_dbg(dev, "Enabling interrupts...\n");
/* Enable interrupts */
- iowrite32(qim, ccp->io_regs + IRQ_MASK_REG);
+ ccp_enable_queue_interrupts(ccp);
dev_dbg(dev, "Registering device...\n");
ccp_add_device(ccp);
@@ -463,7 +524,7 @@ static void ccp_destroy(struct ccp_device *ccp)
{
struct ccp_cmd_queue *cmd_q;
struct ccp_cmd *cmd;
- unsigned int qim, i;
+ unsigned int i;
/* Unregister the DMA engine */
ccp_dmaengine_unregister(ccp);
@@ -474,22 +535,15 @@ static void ccp_destroy(struct ccp_device *ccp)
/* Remove this device from the list of available units */
ccp_del_device(ccp);
- /* Build queue interrupt mask (two interrupt masks per queue) */
- qim = 0;
- for (i = 0; i < ccp->cmd_q_count; i++) {
- cmd_q = &ccp->cmd_q[i];
- qim |= cmd_q->int_ok | cmd_q->int_err;
- }
-
/* Disable and clear interrupts */
- iowrite32(0x00, ccp->io_regs + IRQ_MASK_REG);
+ ccp_disable_queue_interrupts(ccp);
for (i = 0; i < ccp->cmd_q_count; i++) {
cmd_q = &ccp->cmd_q[i];
ioread32(cmd_q->reg_int_status);
ioread32(cmd_q->reg_status);
}
- iowrite32(qim, ccp->io_regs + IRQ_STATUS_REG);
+ iowrite32(ccp->qim, ccp->io_regs + IRQ_STATUS_REG);
/* Stop the queue kthreads */
for (i = 0; i < ccp->cmd_q_count; i++)
@@ -516,40 +570,6 @@ static void ccp_destroy(struct ccp_device *ccp)
}
}
-static irqreturn_t ccp_irq_handler(int irq, void *data)
-{
- struct device *dev = data;
- struct ccp_device *ccp = dev_get_drvdata(dev);
- struct ccp_cmd_queue *cmd_q;
- u32 q_int, status;
- unsigned int i;
-
- status = ioread32(ccp->io_regs + IRQ_STATUS_REG);
-
- for (i = 0; i < ccp->cmd_q_count; i++) {
- cmd_q = &ccp->cmd_q[i];
-
- q_int = status & (cmd_q->int_ok | cmd_q->int_err);
- if (q_int) {
- cmd_q->int_status = status;
- cmd_q->q_status = ioread32(cmd_q->reg_status);
- cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
-
- /* On error, only save the first error value */
- if ((q_int & cmd_q->int_err) && !cmd_q->cmd_error)
- cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
-
- cmd_q->int_rcvd = 1;
-
- /* Acknowledge the interrupt and wake the kthread */
- iowrite32(q_int, ccp->io_regs + IRQ_STATUS_REG);
- wake_up_interruptible(&cmd_q->int_queue);
- }
- }
-
- return IRQ_HANDLED;
-}
-
static const struct ccp_actions ccp3_actions = {
.aes = ccp_perform_aes,
.xts_aes = ccp_perform_xts_aes,
diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c
index fc08b4ed69d9..4e2b01091715 100644
--- a/drivers/crypto/ccp/ccp-dev-v5.c
+++ b/drivers/crypto/ccp/ccp-dev-v5.c
@@ -653,6 +653,65 @@ static int ccp_assign_lsbs(struct ccp_device *ccp)
return rc;
}
+static void ccp5_disable_queue_interrupts(struct ccp_device *ccp)
+{
+ unsigned int i;
+
+ for (i = 0; i < ccp->cmd_q_count; i++)
+ iowrite32(0x0, ccp->cmd_q[i].reg_int_enable);
+}
+
+static void ccp5_enable_queue_interrupts(struct ccp_device *ccp)
+{
+ unsigned int i;
+
+ for (i = 0; i < ccp->cmd_q_count; i++)
+ iowrite32(SUPPORTED_INTERRUPTS, ccp->cmd_q[i].reg_int_enable);
+}
+
+static void ccp5_irq_bh(unsigned long data)
+{
+ struct ccp_device *ccp = (struct ccp_device *)data;
+ u32 status;
+ unsigned int i;
+
+ for (i = 0; i < ccp->cmd_q_count; i++) {
+ struct ccp_cmd_queue *cmd_q = &ccp->cmd_q[i];
+
+ status = ioread32(cmd_q->reg_interrupt_status);
+
+ if (status) {
+ cmd_q->int_status = status;
+ cmd_q->q_status = ioread32(cmd_q->reg_status);
+ cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
+
+ /* On error, only save the first error value */
+ if ((status & INT_ERROR) && !cmd_q->cmd_error)
+ cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
+
+ cmd_q->int_rcvd = 1;
+
+ /* Acknowledge the interrupt and wake the kthread */
+ iowrite32(status, cmd_q->reg_interrupt_status);
+ wake_up_interruptible(&cmd_q->int_queue);
+ }
+ }
+ ccp5_enable_queue_interrupts(ccp);
+}
+
+static irqreturn_t ccp5_irq_handler(int irq, void *data)
+{
+ struct device *dev = data;
+ struct ccp_device *ccp = dev_get_drvdata(dev);
+
+ ccp5_disable_queue_interrupts(ccp);
+ if (ccp->use_tasklet)
+ tasklet_schedule(&ccp->irq_tasklet);
+ else
+ ccp5_irq_bh((unsigned long)ccp);
+ return IRQ_HANDLED;
+}
+
static int ccp5_init(struct ccp_device *ccp)
{
struct device *dev = ccp->dev;
@@ -736,19 +795,18 @@ static int ccp5_init(struct ccp_device *ccp)
}
/* Turn off the queues and disable interrupts until ready */
+ ccp5_disable_queue_interrupts(ccp);
for (i = 0; i < ccp->cmd_q_count; i++) {
cmd_q = &ccp->cmd_q[i];
cmd_q->qcontrol = 0; /* Start with nothing */
iowrite32(cmd_q->qcontrol, cmd_q->reg_control);
- /* Disable the interrupts */
- iowrite32(0x00, cmd_q->reg_int_enable);
ioread32(cmd_q->reg_int_status);
ioread32(cmd_q->reg_status);
- /* Clear the interrupts */
- iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status);
+ /* Clear the interrupt status */
+ iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status);
}
dev_dbg(dev, "Requesting an IRQ...\n");
@@ -758,6 +816,10 @@ static int ccp5_init(struct ccp_device *ccp)
dev_err(dev, "unable to allocate an IRQ\n");
goto e_pool;
}
+ /* Initialize the ISR tasklet */
+ if (ccp->use_tasklet)
+ tasklet_init(&ccp->irq_tasklet, ccp5_irq_bh,
+ (unsigned long)ccp);
dev_dbg(dev, "Loading LSB map...\n");
/* Copy the private LSB mask to the public registers */
@@ -826,11 +888,7 @@ static int ccp5_init(struct ccp_device *ccp)
}
dev_dbg(dev, "Enabling interrupts...\n");
- /* Enable interrupts */
- for (i = 0; i < ccp->cmd_q_count; i++) {
- cmd_q = &ccp->cmd_q[i];
- iowrite32(ALL_INTERRUPTS, cmd_q->reg_int_enable);
- }
+ ccp5_enable_queue_interrupts(ccp);
dev_dbg(dev, "Registering device...\n");
/* Put this on the unit list to make it available */
@@ -882,17 +940,15 @@ static void ccp5_destroy(struct ccp_device *ccp)
ccp_del_device(ccp);
/* Disable and clear interrupts */
+ ccp5_disable_queue_interrupts(ccp);
for (i = 0; i < ccp->cmd_q_count; i++) {
cmd_q = &ccp->cmd_q[i];
/* Turn off the run bit */
iowrite32(cmd_q->qcontrol & ~CMD5_Q_RUN, cmd_q->reg_control);
- /* Disable the interrupts */
- iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status);
-
/* Clear the interrupt status */
- iowrite32(0x00, cmd_q->reg_int_enable);
+ iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status);
ioread32(cmd_q->reg_int_status);
ioread32(cmd_q->reg_status);
}
@@ -925,38 +981,6 @@ static void ccp5_destroy(struct ccp_device *ccp)
}
}
-static irqreturn_t ccp5_irq_handler(int irq, void *data)
-{
- struct device *dev = data;
- struct ccp_device *ccp = dev_get_drvdata(dev);
- u32 status;
- unsigned int i;
-
- for (i = 0; i < ccp->cmd_q_count; i++) {
- struct ccp_cmd_queue *cmd_q = &ccp->cmd_q[i];
-
- status = ioread32(cmd_q->reg_interrupt_status);
-
- if (status) {
- cmd_q->int_status = status;
- cmd_q->q_status = ioread32(cmd_q->reg_status);
- cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
-
- /* On error, only save the first error value */
- if ((status & INT_ERROR) && !cmd_q->cmd_error)
- cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
-
- cmd_q->int_rcvd = 1;
-
- /* Acknowledge the interrupt and wake the kthread */
- iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status);
- wake_up_interruptible(&cmd_q->int_queue);
- }
- }
-
- return IRQ_HANDLED;
-}
-
static void ccp5_config(struct ccp_device *ccp)
{
/* Public side */
diff --git a/drivers/crypto/ccp/ccp-dev.h b/drivers/crypto/ccp/ccp-dev.h
index aa36f3f81860..6bb60e11b0e6 100644
--- a/drivers/crypto/ccp/ccp-dev.h
+++ b/drivers/crypto/ccp/ccp-dev.h
@@ -109,9 +109,8 @@
#define INT_COMPLETION 0x1
#define INT_ERROR 0x2
#define INT_QUEUE_STOPPED 0x4
-#define ALL_INTERRUPTS (INT_COMPLETION| \
- INT_ERROR| \
- INT_QUEUE_STOPPED)
+#define INT_EMPTY_QUEUE 0x8
+#define SUPPORTED_INTERRUPTS (INT_COMPLETION | INT_ERROR)
#define LSB_REGION_WIDTH 5
#define MAX_LSB_CNT 8
@@ -337,7 +336,10 @@ struct ccp_device {
void *dev_specific;
int (*get_irq)(struct ccp_device *ccp);
void (*free_irq)(struct ccp_device *ccp);
+ unsigned int qim;
unsigned int irq;
+ bool use_tasklet;
+ struct tasklet_struct irq_tasklet;
/* I/O area used for device communication. The register mapping
* starts at an offset into the mapped bar.
diff --git a/drivers/crypto/ccp/ccp-pci.c b/drivers/crypto/ccp/ccp-pci.c
index 28a9996c1085..e880d4cf4ada 100644
--- a/drivers/crypto/ccp/ccp-pci.c
+++ b/drivers/crypto/ccp/ccp-pci.c
@@ -69,6 +69,7 @@ static int ccp_get_msix_irqs(struct ccp_device *ccp)
goto e_irq;
}
}
+ ccp->use_tasklet = true;
return 0;
@@ -100,6 +101,7 @@ static int ccp_get_msi_irq(struct ccp_device *ccp)
dev_notice(dev, "unable to allocate MSI IRQ (%d)\n", ret);
goto e_msi;
}
+ ccp->use_tasklet = true;
return 0;
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 1b9da3dc799b..6c620487e9c2 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -287,7 +287,6 @@ static void s5p_sg_done(struct s5p_aes_dev *dev)
static void s5p_aes_complete(struct s5p_aes_dev *dev, int err)
{
dev->req->base.complete(&dev->req->base, err);
- dev->busy = false;
}
static void s5p_unset_outdata(struct s5p_aes_dev *dev)
@@ -462,7 +461,7 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
spin_unlock_irqrestore(&dev->lock, flags);
s5p_aes_complete(dev, 0);
- dev->busy = true;
+ /* Device is still busy */
tasklet_schedule(&dev->tasklet);
} else {
/*
@@ -483,6 +482,7 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
error:
s5p_sg_done(dev);
+ dev->busy = false;
spin_unlock_irqrestore(&dev->lock, flags);
s5p_aes_complete(dev, err);
@@ -634,6 +634,7 @@ static void s5p_aes_crypt_start(struct s5p_aes_dev *dev, unsigned long mode)
indata_error:
s5p_sg_done(dev);
+ dev->busy = false;
spin_unlock_irqrestore(&dev->lock, flags);
s5p_aes_complete(dev, err);
}
diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index 806f180c80d8..f71ececd2678 100644
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -77,36 +77,27 @@ struct dax_dev {
struct resource res[0];
};
+/*
+ * Rely on the fact that drvdata is set before the attributes are
+ * registered, and that the attributes are unregistered before drvdata
+ * is cleared to assume that drvdata is always valid.
+ */
static ssize_t id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct dax_region *dax_region;
- ssize_t rc = -ENXIO;
+ struct dax_region *dax_region = dev_get_drvdata(dev);
- device_lock(dev);
- dax_region = dev_get_drvdata(dev);
- if (dax_region)
- rc = sprintf(buf, "%d\n", dax_region->id);
- device_unlock(dev);
-
- return rc;
+ return sprintf(buf, "%d\n", dax_region->id);
}
static DEVICE_ATTR_RO(id);
static ssize_t region_size_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct dax_region *dax_region;
- ssize_t rc = -ENXIO;
+ struct dax_region *dax_region = dev_get_drvdata(dev);
- device_lock(dev);
- dax_region = dev_get_drvdata(dev);
- if (dax_region)
- rc = sprintf(buf, "%llu\n", (unsigned long long)
- resource_size(&dax_region->res));
- device_unlock(dev);
-
- return rc;
+ return sprintf(buf, "%llu\n", (unsigned long long)
+ resource_size(&dax_region->res));
}
static struct device_attribute dev_attr_region_size = __ATTR(size, 0444,
region_size_show, NULL);
@@ -114,16 +105,9 @@ static struct device_attribute dev_attr_region_size = __ATTR(size, 0444,
static ssize_t align_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct dax_region *dax_region;
- ssize_t rc = -ENXIO;
+ struct dax_region *dax_region = dev_get_drvdata(dev);
- device_lock(dev);
- dax_region = dev_get_drvdata(dev);
- if (dax_region)
- rc = sprintf(buf, "%u\n", dax_region->align);
- device_unlock(dev);
-
- return rc;
+ return sprintf(buf, "%u\n", dax_region->align);
}
static DEVICE_ATTR_RO(align);
@@ -703,13 +687,10 @@ static void dax_dev_release(struct device *dev)
kfree(dax_dev);
}
-static void unregister_dax_dev(void *dev)
+static void kill_dax_dev(struct dax_dev *dax_dev)
{
- struct dax_dev *dax_dev = to_dax_dev(dev);
struct cdev *cdev = &dax_dev->cdev;
- dev_dbg(dev, "%s\n", __func__);
-
/*
* Note, rcu is not protecting the liveness of dax_dev, rcu is
* ensuring that any fault handlers that might have seen
@@ -721,6 +702,15 @@ static void unregister_dax_dev(void *dev)
synchronize_srcu(&dax_srcu);
unmap_mapping_range(dax_dev->inode->i_mapping, 0, 0, 1);
cdev_del(cdev);
+}
+
+static void unregister_dax_dev(void *dev)
+{
+ struct dax_dev *dax_dev = to_dax_dev(dev);
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ kill_dax_dev(dax_dev);
device_unregister(dev);
}
@@ -797,6 +787,7 @@ struct dax_dev *devm_create_dax_dev(struct dax_region *dax_region,
dev_set_name(dev, "dax%d.%d", dax_region->id, dax_dev->id);
rc = device_add(dev);
if (rc) {
+ kill_dax_dev(dax_dev);
put_device(dev);
return ERR_PTR(rc);
}
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 7c9e34d679d3..81d447da0048 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -172,8 +172,16 @@ static void ib_device_release(struct device *device)
{
struct ib_device *dev = container_of(device, struct ib_device, dev);
- ib_cache_release_one(dev);
- kfree(dev->port_immutable);
+ WARN_ON(dev->reg_state == IB_DEV_REGISTERED);
+ if (dev->reg_state == IB_DEV_UNREGISTERED) {
+ /*
+ * In IB_DEV_UNINITIALIZED state, cache or port table
+ * is not even created. Free cache and port table only when
+ * device reaches UNREGISTERED state.
+ */
+ ib_cache_release_one(dev);
+ kfree(dev->port_immutable);
+ }
kfree(dev);
}
@@ -380,32 +388,27 @@ int ib_register_device(struct ib_device *device,
ret = ib_cache_setup_one(device);
if (ret) {
pr_warn("Couldn't set up InfiniBand P_Key/GID cache\n");
- goto out;
+ goto port_cleanup;
}
ret = ib_device_register_rdmacg(device);
if (ret) {
pr_warn("Couldn't register device with rdma cgroup\n");
- ib_cache_cleanup_one(device);
- goto out;
+ goto cache_cleanup;
}
memset(&device->attrs, 0, sizeof(device->attrs));
ret = device->query_device(device, &device->attrs, &uhw);
if (ret) {
pr_warn("Couldn't query the device attributes\n");
- ib_device_unregister_rdmacg(device);
- ib_cache_cleanup_one(device);
- goto out;
+ goto cache_cleanup;
}
ret = ib_device_register_sysfs(device, port_callback);
if (ret) {
pr_warn("Couldn't register device %s with driver model\n",
device->name);
- ib_device_unregister_rdmacg(device);
- ib_cache_cleanup_one(device);
- goto out;
+ goto cache_cleanup;
}
device->reg_state = IB_DEV_REGISTERED;
@@ -417,6 +420,14 @@ int ib_register_device(struct ib_device *device,
down_write(&lists_rwsem);
list_add_tail(&device->core_list, &device_list);
up_write(&lists_rwsem);
+ mutex_unlock(&device_mutex);
+ return 0;
+
+cache_cleanup:
+ ib_cache_cleanup_one(device);
+ ib_cache_release_one(device);
+port_cleanup:
+ kfree(device->port_immutable);
out:
mutex_unlock(&device_mutex);
return ret;
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index daadf3130c9f..48bb75503255 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -1301,7 +1301,7 @@ int ib_device_register_sysfs(struct ib_device *device,
free_port_list_attributes(device);
err_unregister:
- device_unregister(class_dev);
+ device_del(class_dev);
err:
return ret;
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 85ed5051fdfd..207e5c2457cc 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1519,7 +1519,9 @@ int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid)
if (!qp->device->attach_mcast)
return -ENOSYS;
- if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
+ if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD ||
+ lid < be16_to_cpu(IB_MULTICAST_LID_BASE) ||
+ lid == be16_to_cpu(IB_LID_PERMISSIVE))
return -EINVAL;
ret = qp->device->attach_mcast(qp, gid, lid);
@@ -1535,7 +1537,9 @@ int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid)
if (!qp->device->detach_mcast)
return -ENOSYS;
- if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
+ if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD ||
+ lid < be16_to_cpu(IB_MULTICAST_LID_BASE) ||
+ lid == be16_to_cpu(IB_LID_PERMISSIVE))
return -EINVAL;
ret = qp->device->detach_mcast(qp, gid, lid);
diff --git a/drivers/infiniband/hw/hfi1/ruc.c b/drivers/infiniband/hw/hfi1/ruc.c
index aa15bcbfb079..17d7578de6e5 100644
--- a/drivers/infiniband/hw/hfi1/ruc.c
+++ b/drivers/infiniband/hw/hfi1/ruc.c
@@ -1,5 +1,5 @@
/*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2017 Intel Corporation.
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
@@ -784,23 +784,29 @@ void hfi1_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr,
/* when sending, force a reschedule every one of these periods */
#define SEND_RESCHED_TIMEOUT (5 * HZ) /* 5s in jiffies */
+void hfi1_do_send_from_rvt(struct rvt_qp *qp)
+{
+ hfi1_do_send(qp, false);
+}
+
void _hfi1_do_send(struct work_struct *work)
{
struct iowait *wait = container_of(work, struct iowait, iowork);
struct rvt_qp *qp = iowait_to_qp(wait);
- hfi1_do_send(qp);
+ hfi1_do_send(qp, true);
}
/**
* hfi1_do_send - perform a send on a QP
* @work: contains a pointer to the QP
+ * @in_thread: true if in a workqueue thread
*
* Process entries in the send work queue until credit or queue is
* exhausted. Only allow one CPU to send a packet per QP.
* Otherwise, two threads could send packets out of order.
*/
-void hfi1_do_send(struct rvt_qp *qp)
+void hfi1_do_send(struct rvt_qp *qp, bool in_thread)
{
struct hfi1_pkt_state ps;
struct hfi1_qp_priv *priv = qp->priv;
@@ -868,8 +874,10 @@ void hfi1_do_send(struct rvt_qp *qp)
qp->s_hdrwords = 0;
/* allow other tasks to run */
if (unlikely(time_after(jiffies, timeout))) {
- if (workqueue_congested(cpu,
- ps.ppd->hfi1_wq)) {
+ if (!in_thread ||
+ workqueue_congested(
+ cpu,
+ ps.ppd->hfi1_wq)) {
spin_lock_irqsave(
&qp->s_lock,
ps.flags);
@@ -882,11 +890,9 @@ void hfi1_do_send(struct rvt_qp *qp)
*ps.ppd->dd->send_schedule);
return;
}
- if (!irqs_disabled()) {
- cond_resched();
- this_cpu_inc(
- *ps.ppd->dd->send_schedule);
- }
+ cond_resched();
+ this_cpu_inc(
+ *ps.ppd->dd->send_schedule);
timeout = jiffies + (timeout_int) / 8;
}
spin_lock_irqsave(&qp->s_lock, ps.flags);
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 222315fadab1..16ef7b12b0b8 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1,5 +1,5 @@
/*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2017 Intel Corporation.
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
@@ -1751,7 +1751,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
dd->verbs_dev.rdi.driver_f.qp_priv_free = qp_priv_free;
dd->verbs_dev.rdi.driver_f.free_all_qps = free_all_qps;
dd->verbs_dev.rdi.driver_f.notify_qp_reset = notify_qp_reset;
- dd->verbs_dev.rdi.driver_f.do_send = hfi1_do_send;
+ dd->verbs_dev.rdi.driver_f.do_send = hfi1_do_send_from_rvt;
dd->verbs_dev.rdi.driver_f.schedule_send = hfi1_schedule_send;
dd->verbs_dev.rdi.driver_f.schedule_send_no_lock = _hfi1_schedule_send;
dd->verbs_dev.rdi.driver_f.get_pmtu_from_attr = get_pmtu_from_attr;
diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h
index 3a0b589e41c2..92e72ab2b610 100644
--- a/drivers/infiniband/hw/hfi1/verbs.h
+++ b/drivers/infiniband/hw/hfi1/verbs.h
@@ -1,5 +1,5 @@
/*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2017 Intel Corporation.
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
@@ -350,7 +350,9 @@ void hfi1_make_ruc_header(struct rvt_qp *qp, struct ib_other_headers *ohdr,
void _hfi1_do_send(struct work_struct *work);
-void hfi1_do_send(struct rvt_qp *qp);
+void hfi1_do_send_from_rvt(struct rvt_qp *qp);
+
+void hfi1_do_send(struct rvt_qp *qp, bool in_thread);
void hfi1_send_complete(struct rvt_qp *qp, struct rvt_swqe *wqe,
enum ib_wc_status status);
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index fba94df28cf1..c7e6d137c162 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2941,6 +2941,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
err_map:
+ mlx4_ib_free_eqs(dev, ibdev);
iounmap(ibdev->uar_map);
err_uar:
diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
index e010fe459e67..8772d88d324d 100644
--- a/drivers/infiniband/hw/mlx4/mcg.c
+++ b/drivers/infiniband/hw/mlx4/mcg.c
@@ -1102,7 +1102,8 @@ static void _mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy
while ((p = rb_first(&ctx->mcg_table)) != NULL) {
group = rb_entry(p, struct mcast_group, node);
if (atomic_read(&group->refcount))
- mcg_warn_group(group, "group refcount %d!!! (pointer %p)\n", atomic_read(&group->refcount), group);
+ mcg_debug_group(group, "group refcount %d!!! (pointer %p)\n",
+ atomic_read(&group->refcount), group);
force_clean_group(group);
}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_fs.c b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
index 6bd5740e2691..09396bd7b02d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_fs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
@@ -281,8 +281,11 @@ void ipoib_delete_debug_files(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
+ WARN_ONCE(!priv->mcg_dentry, "null mcg debug file\n");
+ WARN_ONCE(!priv->path_dentry, "null path debug file\n");
debugfs_remove(priv->mcg_dentry);
debugfs_remove(priv->path_dentry);
+ priv->mcg_dentry = priv->path_dentry = NULL;
}
int ipoib_register_debugfs(void)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index d1d3fb7a6127..b319cc26c9a7 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -108,6 +108,33 @@ static struct ib_client ipoib_client = {
.get_net_dev_by_params = ipoib_get_net_dev_by_params,
};
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+static int ipoib_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct netdev_notifier_info *ni = ptr;
+ struct net_device *dev = ni->dev;
+
+ if (dev->netdev_ops->ndo_open != ipoib_open)
+ return NOTIFY_DONE;
+
+ switch (event) {
+ case NETDEV_REGISTER:
+ ipoib_create_debug_files(dev);
+ break;
+ case NETDEV_CHANGENAME:
+ ipoib_delete_debug_files(dev);
+ ipoib_create_debug_files(dev);
+ break;
+ case NETDEV_UNREGISTER:
+ ipoib_delete_debug_files(dev);
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+#endif
+
int ipoib_open(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -1674,8 +1701,6 @@ void ipoib_dev_cleanup(struct net_device *dev)
ASSERT_RTNL();
- ipoib_delete_debug_files(dev);
-
/* Delete any child interfaces first */
list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
/* Stop GC on child */
@@ -2090,8 +2115,6 @@ static struct net_device *ipoib_add_port(const char *format,
goto register_failed;
}
- ipoib_create_debug_files(priv->dev);
-
if (ipoib_cm_add_mode_attr(priv->dev))
goto sysfs_failed;
if (ipoib_add_pkey_attr(priv->dev))
@@ -2106,7 +2129,6 @@ static struct net_device *ipoib_add_port(const char *format,
return priv->dev;
sysfs_failed:
- ipoib_delete_debug_files(priv->dev);
unregister_netdev(priv->dev);
register_failed:
@@ -2191,6 +2213,12 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
kfree(dev_list);
}
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+static struct notifier_block ipoib_netdev_notifier = {
+ .notifier_call = ipoib_netdev_event,
+};
+#endif
+
static int __init ipoib_init_module(void)
{
int ret;
@@ -2243,6 +2271,9 @@ static int __init ipoib_init_module(void)
if (ret)
goto err_client;
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+ register_netdevice_notifier(&ipoib_netdev_notifier);
+#endif
return 0;
err_client:
@@ -2260,6 +2291,9 @@ static int __init ipoib_init_module(void)
static void __exit ipoib_cleanup_module(void)
{
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+ unregister_netdevice_notifier(&ipoib_netdev_notifier);
+#endif
ipoib_netlink_fini();
ib_unregister_client(&ipoib_client);
ib_sa_unregister_client(&ipoib_sa_client);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 3e10e3dac2e7..e543bc745f34 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -86,8 +86,6 @@ int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
goto register_failed;
}
- ipoib_create_debug_files(priv->dev);
-
/* RTNL childs don't need proprietary sysfs entries */
if (type == IPOIB_LEGACY_CHILD) {
if (ipoib_cm_add_mode_attr(priv->dev))
@@ -108,7 +106,6 @@ int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
sysfs_failed:
result = -ENOMEM;
- ipoib_delete_debug_files(priv->dev);
unregister_netdevice(priv->dev);
register_failed:
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 389a3637ffcc..b8f3d77d3b5c 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1649,12 +1649,16 @@ static int crypt_set_key(struct crypt_config *cc, char *key)
static int crypt_wipe_key(struct crypt_config *cc)
{
+ int r;
+
clear_bit(DM_CRYPT_KEY_VALID, &cc->flags);
- memset(&cc->key, 0, cc->key_size * sizeof(u8));
+ get_random_bytes(&cc->key, cc->key_size);
kzfree(cc->key_string);
cc->key_string = NULL;
+ r = crypt_setkey(cc);
+ memset(&cc->key, 0, cc->key_size * sizeof(u8));
- return crypt_setkey(cc);
+ return r;
}
static void crypt_dtr(struct dm_target *ti)
diff --git a/drivers/md/dm-era-target.c b/drivers/md/dm-era-target.c
index 9fab33b113c4..68d4084377ad 100644
--- a/drivers/md/dm-era-target.c
+++ b/drivers/md/dm-era-target.c
@@ -961,15 +961,15 @@ static int metadata_commit(struct era_metadata *md)
}
}
- r = save_sm_root(md);
+ r = dm_tm_pre_commit(md->tm);
if (r) {
- DMERR("%s: save_sm_root failed", __func__);
+ DMERR("%s: pre commit failed", __func__);
return r;
}
- r = dm_tm_pre_commit(md->tm);
+ r = save_sm_root(md);
if (r) {
- DMERR("%s: pre commit failed", __func__);
+ DMERR("%s: save_sm_root failed", __func__);
return r;
}
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 0b081d170087..505b9f6b4a47 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -810,10 +810,14 @@ int dm_mq_init_request_queue(struct mapped_device *md, struct dm_table *t)
dm_init_md_queue(md);
/* backfill 'mq' sysfs registration normally done in blk_register_queue */
- blk_mq_register_dev(disk_to_dev(md->disk), q);
+ err = blk_mq_register_dev(disk_to_dev(md->disk), q);
+ if (err)
+ goto out_cleanup_queue;
return 0;
+out_cleanup_queue:
+ blk_cleanup_queue(q);
out_tag_set:
blk_mq_free_tag_set(md->tag_set);
out_kfree_tag_set:
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2b266a2b5035..5742e5eb0704 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1069,6 +1069,7 @@ static void passdown_endio(struct bio *bio)
* to unmap (we ignore err).
*/
queue_passdown_pt2(bio->bi_private);
+ bio_put(bio);
}
static void process_prepared_discard_passdown_pt1(struct dm_thin_new_mapping *m)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a34f58772022..839ead062645 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2222,6 +2222,8 @@ static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio)
(i == r1_bio->read_disk ||
!test_bit(MD_RECOVERY_SYNC, &mddev->recovery))))
continue;
+ if (test_bit(Faulty, &conf->mirrors[i].rdev->flags))
+ continue;
bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
if (test_bit(FailFast, &conf->mirrors[i].rdev->flags))
diff --git a/drivers/nvdimm/btt_devs.c b/drivers/nvdimm/btt_devs.c
index 97dd2925ed6e..4b76af2b8715 100644
--- a/drivers/nvdimm/btt_devs.c
+++ b/drivers/nvdimm/btt_devs.c
@@ -314,7 +314,7 @@ int nd_btt_probe(struct device *dev, struct nd_namespace_common *ndns)
if (rc < 0) {
struct nd_btt *nd_btt = to_nd_btt(btt_dev);
- __nd_detach_ndns(btt_dev, &nd_btt->ndns);
+ nd_detach_ndns(btt_dev, &nd_btt->ndns);
put_device(btt_dev);
}
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c
index ca6d572c48fc..8513c8ac963b 100644
--- a/drivers/nvdimm/claim.c
+++ b/drivers/nvdimm/claim.c
@@ -21,8 +21,13 @@
void __nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns)
{
struct nd_namespace_common *ndns = *_ndns;
+ struct nvdimm_bus *nvdimm_bus;
- lockdep_assert_held(&ndns->dev.mutex);
+ if (!ndns)
+ return;
+
+ nvdimm_bus = walk_to_nvdimm_bus(&ndns->dev);
+ lockdep_assert_held(&nvdimm_bus->reconfig_mutex);
dev_WARN_ONCE(dev, ndns->claim != dev, "%s: invalid claim\n", __func__);
ndns->claim = NULL;
*_ndns = NULL;
@@ -37,18 +42,20 @@ void nd_detach_ndns(struct device *dev,
if (!ndns)
return;
get_device(&ndns->dev);
- device_lock(&ndns->dev);
+ nvdimm_bus_lock(&ndns->dev);
__nd_detach_ndns(dev, _ndns);
- device_unlock(&ndns->dev);
+ nvdimm_bus_unlock(&ndns->dev);
put_device(&ndns->dev);
}
bool __nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
struct nd_namespace_common **_ndns)
{
+ struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(&attach->dev);
+
if (attach->claim)
return false;
- lockdep_assert_held(&attach->dev.mutex);
+ lockdep_assert_held(&nvdimm_bus->reconfig_mutex);
dev_WARN_ONCE(dev, *_ndns, "%s: invalid claim\n", __func__);
attach->claim = dev;
*_ndns = attach;
@@ -61,9 +68,9 @@ bool nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
{
bool claimed;
- device_lock(&attach->dev);
+ nvdimm_bus_lock(&attach->dev);
claimed = __nd_attach_ndns(dev, attach, _ndns);
- device_unlock(&attach->dev);
+ nvdimm_bus_unlock(&attach->dev);
return claimed;
}
@@ -114,7 +121,7 @@ static void nd_detach_and_reset(struct device *dev,
struct nd_namespace_common **_ndns)
{
/* detach the namespace and destroy / reset the device */
- nd_detach_ndns(dev, _ndns);
+ __nd_detach_ndns(dev, _ndns);
if (is_idle(dev, *_ndns)) {
nd_device_unregister(dev, ND_ASYNC);
} else if (is_nd_btt(dev)) {
@@ -184,7 +191,7 @@ ssize_t nd_namespace_store(struct device *dev,
}
WARN_ON_ONCE(!is_nvdimm_bus_locked(dev));
- if (!nd_attach_ndns(dev, ndns, _ndns)) {
+ if (!__nd_attach_ndns(dev, ndns, _ndns)) {
dev_dbg(dev, "%s already claimed\n",
dev_name(&ndns->dev));
len = -EBUSY;
diff --git a/drivers/nvdimm/dax_devs.c b/drivers/nvdimm/dax_devs.c
index 45fa82cae87c..c1b6556aea6e 100644
--- a/drivers/nvdimm/dax_devs.c
+++ b/drivers/nvdimm/dax_devs.c
@@ -124,7 +124,7 @@ int nd_dax_probe(struct device *dev, struct nd_namespace_common *ndns)
dev_dbg(dev, "%s: dax: %s\n", __func__,
rc == 0 ? dev_name(dax_dev) : "<none>");
if (rc < 0) {
- __nd_detach_ndns(dax_dev, &nd_pfn->ndns);
+ nd_detach_ndns(dax_dev, &nd_pfn->ndns);
put_device(dax_dev);
} else
__nd_device_register(dax_dev);
diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 6c033c9a2f06..335c8175410b 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -484,7 +484,7 @@ int nd_pfn_probe(struct device *dev, struct nd_namespace_common *ndns)
dev_dbg(dev, "%s: pfn: %s\n", __func__,
rc == 0 ? dev_name(pfn_dev) : "<none>");
if (rc < 0) {
- __nd_detach_ndns(pfn_dev, &nd_pfn->ndns);
+ nd_detach_ndns(pfn_dev, &nd_pfn->ndns);
put_device(pfn_dev);
} else
__nd_device_register(pfn_dev);
@@ -538,7 +538,8 @@ static struct vmem_altmap *__nvdimm_setup_pfn(struct nd_pfn *nd_pfn,
nd_pfn->npfns = le64_to_cpu(pfn_sb->npfns);
altmap = NULL;
} else if (nd_pfn->mode == PFN_MODE_PMEM) {
- nd_pfn->npfns = (resource_size(res) - offset) / PAGE_SIZE;
+ nd_pfn->npfns = PFN_SECTION_ALIGN_UP((resource_size(res)
+ - offset) / PAGE_SIZE);
if (le64_to_cpu(nd_pfn->pfn_sb->npfns) > nd_pfn->npfns)
dev_info(&nd_pfn->dev,
"number of pfns truncated from %lld to %ld\n",
@@ -625,7 +626,8 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
*/
start += start_pad;
size = resource_size(&nsio->res);
- npfns = (size - start_pad - end_trunc - SZ_8K) / SZ_4K;
+ npfns = PFN_SECTION_ALIGN_UP((size - start_pad - end_trunc - SZ_8K)
+ / PAGE_SIZE);
if (nd_pfn->mode == PFN_MODE_PMEM) {
/*
* vmemmap_populate_hugepages() allocates the memmap array in
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 5b536be5a12e..0fc18262a2bc 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -388,12 +388,12 @@ static void nd_pmem_shutdown(struct device *dev)
static void nd_pmem_notify(struct device *dev, enum nvdimm_event event)
{
- struct pmem_device *pmem = dev_get_drvdata(dev);
- struct nd_region *nd_region = to_region(pmem);
+ struct nd_region *nd_region;
resource_size_t offset = 0, end_trunc = 0;
struct nd_namespace_common *ndns;
struct nd_namespace_io *nsio;
struct resource res;
+ struct badblocks *bb;
if (event != NVDIMM_REVALIDATE_POISON)
return;
@@ -402,20 +402,33 @@ static void nd_pmem_notify(struct device *dev, enum nvdimm_event event)
struct nd_btt *nd_btt = to_nd_btt(dev);
ndns = nd_btt->ndns;
- } else if (is_nd_pfn(dev)) {
- struct nd_pfn *nd_pfn = to_nd_pfn(dev);
- struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
+ nd_region = to_nd_region(ndns->dev.parent);
+ nsio = to_nd_namespace_io(&ndns->dev);
+ bb = &nsio->bb;
+ } else {
+ struct pmem_device *pmem = dev_get_drvdata(dev);
- ndns = nd_pfn->ndns;
- offset = pmem->data_offset + __le32_to_cpu(pfn_sb->start_pad);
- end_trunc = __le32_to_cpu(pfn_sb->end_trunc);
- } else
- ndns = to_ndns(dev);
+ nd_region = to_region(pmem);
+ bb = &pmem->bb;
+
+ if (is_nd_pfn(dev)) {
+ struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+ struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
+
+ ndns = nd_pfn->ndns;
+ offset = pmem->data_offset +
+ __le32_to_cpu(pfn_sb->start_pad);
+ end_trunc = __le32_to_cpu(pfn_sb->end_trunc);
+ } else {
+ ndns = to_ndns(dev);
+ }
+
+ nsio = to_nd_namespace_io(&ndns->dev);
+ }
- nsio = to_nd_namespace_io(&ndns->dev);
res.start = nsio->res.start + offset;
res.end = nsio->res.end - end_trunc;
- nvdimm_badblocks_populate(nd_region, &pmem->bb, &res);
+ nvdimm_badblocks_populate(nd_region, bb, &res);
}
MODULE_ALIAS("pmem");
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index b7cb5066d961..378885f4050b 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -968,17 +968,20 @@ EXPORT_SYMBOL_GPL(nvdimm_flush);
*/
int nvdimm_has_flush(struct nd_region *nd_region)
{
- struct nd_region_data *ndrd = dev_get_drvdata(&nd_region->dev);
int i;
/* no nvdimm == flushing capability unknown */
if (nd_region->ndr_mappings == 0)
return -ENXIO;
- for (i = 0; i < nd_region->ndr_mappings; i++)
- /* flush hints present, flushing required */
- if (ndrd_get_flush_wpq(ndrd, i, 0))
+ for (i = 0; i < nd_region->ndr_mappings; i++) {
+ struct nd_mapping *nd_mapping = &nd_region->mapping[i];
+ struct nvdimm *nvdimm = nd_mapping->nvdimm;
+
+ /* flush hints present / available */
+ if (nvdimm->num_flush)
return 1;
+ }
/*
* The platform defines dimm devices without hints, assume
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 70390de66e0e..eb0a095efe9c 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -611,7 +611,7 @@ static void jr3_pci_poll_dev(unsigned long data)
s = &dev->subdevices[i];
spriv = s->private;
- if (now > spriv->next_time_min) {
+ if (time_after_eq(now, spriv->next_time_min)) {
struct jr3_pci_poll_delay sub_delay;
sub_delay = jr3_pci_poll_subdevice(s);
@@ -727,11 +727,12 @@ static int jr3_pci_auto_attach(struct comedi_device *dev,
s->insn_read = jr3_pci_ai_insn_read;
spriv = jr3_pci_alloc_spriv(dev, s);
- if (spriv) {
- /* Channel specific range and maxdata */
- s->range_table_list = spriv->range_table_list;
- s->maxdata_list = spriv->maxdata_list;
- }
+ if (!spriv)
+ return -ENOMEM;
+
+ /* Channel specific range and maxdata */
+ s->range_table_list = spriv->range_table_list;
+ s->maxdata_list = spriv->maxdata_list;
}
/* Reset DSP card */
diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
index 400969170d1c..f03e43b1b5f6 100644
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ b/drivers/staging/gdm724x/gdm_mux.c
@@ -664,9 +664,8 @@ static int __init gdm_usb_mux_init(void)
static void __exit gdm_usb_mux_exit(void)
{
- unregister_lte_tty_driver();
-
usb_deregister(&gdm_mux_driver);
+ unregister_lte_tty_driver();
}
module_init(gdm_usb_mux_init);
diff --git a/drivers/staging/media/lirc/lirc_sir.c b/drivers/staging/media/lirc/lirc_sir.c
index c6c3de94adaa..edb607a45505 100644
--- a/drivers/staging/media/lirc/lirc_sir.c
+++ b/drivers/staging/media/lirc/lirc_sir.c
@@ -227,6 +227,7 @@ static int init_chrdev(void)
if (!rcdev)
return -ENOMEM;
+ rcdev->input_name = "SIR IrDA port";
rcdev->input_phys = KBUILD_MODNAME "/input0";
rcdev->input_id.bustype = BUS_HOST;
rcdev->input_id.vendor = 0x0001;
@@ -234,6 +235,7 @@ static int init_chrdev(void)
rcdev->input_id.version = 0x0100;
rcdev->tx_ir = sir_tx_ir;
rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
+ rcdev->driver_name = KBUILD_MODNAME;
rcdev->map_name = RC_MAP_RC6_MCE;
rcdev->timeout = IR_DEFAULT_TIMEOUT;
rcdev->dev.parent = &sir_ir_dev->dev;
@@ -740,7 +742,13 @@ static int init_sir_ir(void)
static int sir_ir_probe(struct platform_device *dev)
{
- return 0;
+ int retval;
+
+ retval = init_chrdev();
+ if (retval < 0)
+ return retval;
+
+ return init_sir_ir();
}
static int sir_ir_remove(struct platform_device *dev)
@@ -780,18 +788,8 @@ static int __init sir_ir_init(void)
goto pdev_add_fail;
}
- retval = init_chrdev();
- if (retval < 0)
- goto fail;
-
- retval = init_sir_ir();
- if (retval)
- goto fail;
-
return 0;
-fail:
- platform_device_del(sir_ir_dev);
pdev_add_fail:
platform_device_put(sir_ir_dev);
pdev_alloc_fail:
diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index 1ae6a64c7fd4..dc11a05be8c4 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -47,15 +47,25 @@ int vnt_control_out(struct vnt_private *priv, u8 request, u16 value,
u16 index, u16 length, u8 *buffer)
{
int status = 0;
+ u8 *usb_buffer;
if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
return STATUS_FAILURE;
mutex_lock(&priv->usb_lock);
+ usb_buffer = kmemdup(buffer, length, GFP_KERNEL);
+ if (!usb_buffer) {
+ mutex_unlock(&priv->usb_lock);
+ return -ENOMEM;
+ }
+
status = usb_control_msg(priv->usb,
- usb_sndctrlpipe(priv->usb, 0), request, 0x40, value,
- index, buffer, length, USB_CTL_WAIT);
+ usb_sndctrlpipe(priv->usb, 0),
+ request, 0x40, value,
+ index, usb_buffer, length, USB_CTL_WAIT);
+
+ kfree(usb_buffer);
mutex_unlock(&priv->usb_lock);
@@ -75,15 +85,28 @@ int vnt_control_in(struct vnt_private *priv, u8 request, u16 value,
u16 index, u16 length, u8 *buffer)
{
int status;
+ u8 *usb_buffer;
if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
return STATUS_FAILURE;
mutex_lock(&priv->usb_lock);
+ usb_buffer = kmalloc(length, GFP_KERNEL);
+ if (!usb_buffer) {
+ mutex_unlock(&priv->usb_lock);
+ return -ENOMEM;
+ }
+
status = usb_control_msg(priv->usb,
- usb_rcvctrlpipe(priv->usb, 0), request, 0xc0, value,
- index, buffer, length, USB_CTL_WAIT);
+ usb_rcvctrlpipe(priv->usb, 0),
+ request, 0xc0, value,
+ index, usb_buffer, length, USB_CTL_WAIT);
+
+ if (status == length)
+ memcpy(buffer, usb_buffer, length);
+
+ kfree(usb_buffer);
mutex_unlock(&priv->usb_lock);
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 2eebc6215cac..bdf11c9f44a8 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1251,11 +1251,12 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
else
strcpy(ndev->name, "p2p%d");
- vif->idx = wl->vif_num;
vif->wilc = *wilc;
vif->ndev = ndev;
wl->vif[i] = vif;
wl->vif_num = i;
+ vif->idx = wl->vif_num;
+
ndev->netdev_ops = &wilc_netdev_ops;
{
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index e3f9ed3690b7..8beed3451346 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4683,6 +4683,7 @@ int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *tpg, int force)
continue;
}
atomic_set(&sess->session_reinstatement, 1);
+ atomic_set(&sess->session_fall_back_to_erl0, 1);
spin_unlock(&sess->conn_lock);
list_move_tail(&se_sess->sess_list, &free_list);
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 344e8448869c..96d9c73af1ae 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1528,6 +1528,7 @@ static void lio_tpg_close_session(struct se_session *se_sess)
return;
}
atomic_set(&sess->session_reinstatement, 1);
+ atomic_set(&sess->session_fall_back_to_erl0, 1);
spin_unlock(&sess->conn_lock);
iscsit_stop_time2retain_timer(sess);
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index ad8f3011bdc2..66238477137b 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -208,6 +208,7 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn)
initiatorname_param->value) &&
(sess_p->sess_ops->SessionType == sessiontype))) {
atomic_set(&sess_p->session_reinstatement, 1);
+ atomic_set(&sess_p->session_fall_back_to_erl0, 1);
spin_unlock(&sess_p->conn_lock);
iscsit_inc_session_usage_count(sess_p);
iscsit_stop_time2retain_timer(sess_p);
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 87aa376a1a1a..e00050ccb61d 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -595,8 +595,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
if (ret < 0)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- if (ret)
- target_complete_cmd(cmd, SAM_STAT_GOOD);
+ target_complete_cmd(cmd, SAM_STAT_GOOD);
return 0;
}
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index c194063f169b..6ec390bb178e 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -507,8 +507,11 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool succes
* been failed with a non-zero SCSI status.
*/
if (cmd->scsi_status) {
- pr_err("compare_and_write_callback: non zero scsi_status:"
+ pr_debug("compare_and_write_callback: non zero scsi_status:"
" 0x%02x\n", cmd->scsi_status);
+ *post_ret = 1;
+ if (cmd->scsi_status == SAM_STAT_CHECK_CONDITION)
+ ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
goto out;
}
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 66b59a15780d..65799575c666 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -216,16 +216,11 @@ static int pty_signal(struct tty_struct *tty, int sig)
static void pty_flush_buffer(struct tty_struct *tty)
{
struct tty_struct *to = tty->link;
- struct tty_ldisc *ld;
if (!to)
return;
- ld = tty_ldisc_ref(to);
- tty_buffer_flush(to, ld);
- if (ld)
- tty_ldisc_deref(ld);
-
+ tty_buffer_flush(to, NULL);
if (to->packet) {
spin_lock_irq(&tty->ctrl_lock);
tty->ctrl_status |= TIOCPKT_FLUSHWRITE;
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index b0a377725d63..f2503d862f3a 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2470,19 +2470,34 @@ static int __init pl011_early_console_setup(struct earlycon_device *device,
if (!device->port.membase)
return -ENODEV;
- /* On QDF2400 SOCs affected by Erratum 44, the "qdf2400_e44" must
- * also be specified, e.g. "earlycon=pl011,<address>,qdf2400_e44".
- */
- if (!strcmp(device->options, "qdf2400_e44"))
- device->con->write = qdf2400_e44_early_write;
- else
- device->con->write = pl011_early_write;
+ device->con->write = pl011_early_write;
return 0;
}
OF_EARLYCON_DECLARE(pl011, "arm,pl011", pl011_early_console_setup);
OF_EARLYCON_DECLARE(pl011, "arm,sbsa-uart", pl011_early_console_setup);
-EARLYCON_DECLARE(qdf2400_e44, pl011_early_console_setup);
+
+/*
+ * On Qualcomm Datacenter Technologies QDF2400 SOCs affected by
+ * Erratum 44, traditional earlycon can be enabled by specifying
+ * "earlycon=qdf2400_e44,<address>". Any options are ignored.
+ *
+ * Alternatively, you can just specify "earlycon", and the early console
+ * will be enabled with the information from the SPCR table. In this
+ * case, the SPCR code will detect the need for the E44 work-around,
+ * and set the console name to "qdf2400_e44".
+ */
+static int __init
+qdf2400_e44_early_console_setup(struct earlycon_device *device,
+ const char *opt)
+{
+ if (!device->port.membase)
+ return -ENODEV;
+
+ device->con->write = qdf2400_e44_early_write;
+ return 0;
+}
+EARLYCON_DECLARE(qdf2400_e44, qdf2400_e44_early_console_setup);
#else
#define AMBA_CONSOLE NULL
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 6c6f82ad8d5c..e4210b9ad0d3 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1767,7 +1767,8 @@ static int serial_omap_probe(struct platform_device *pdev)
return 0;
err_add_port:
- pm_runtime_put(&pdev->dev);
+ pm_runtime_dont_use_autosuspend(&pdev->dev);
+ pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
pm_qos_remove_request(&up->pm_qos_request);
device_init_wakeup(up->dev, false);
@@ -1780,9 +1781,13 @@ static int serial_omap_remove(struct platform_device *dev)
{
struct uart_omap_port *up = platform_get_drvdata(dev);
+ pm_runtime_get_sync(up->dev);
+
+ uart_remove_one_port(&serial_omap_reg, &up->port);
+
+ pm_runtime_dont_use_autosuspend(up->dev);
pm_runtime_put_sync(up->dev);
pm_runtime_disable(up->dev);
- uart_remove_one_port(&serial_omap_reg, &up->port);
pm_qos_remove_request(&up->pm_qos_request);
device_init_wakeup(&dev->dev, false);
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 7a17aedbf902..43c84c9bb904 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -860,6 +860,7 @@ static int s3c24xx_serial_request_dma(struct s3c24xx_uart_port *p)
{
struct s3c24xx_uart_dma *dma = p->dma;
unsigned long flags;
+ int ret;
/* Default slave configuration parameters */
dma->rx_conf.direction = DMA_DEV_TO_MEM;
@@ -884,8 +885,8 @@ static int s3c24xx_serial_request_dma(struct s3c24xx_uart_port *p)
dma->tx_chan = dma_request_chan(p->port.dev, "tx");
if (IS_ERR(dma->tx_chan)) {
- dma_release_channel(dma->rx_chan);
- return PTR_ERR(dma->tx_chan);
+ ret = PTR_ERR(dma->tx_chan);
+ goto err_release_rx;
}
dmaengine_slave_config(dma->tx_chan, &dma->tx_conf);
@@ -894,26 +895,42 @@ static int s3c24xx_serial_request_dma(struct s3c24xx_uart_port *p)
dma->rx_size = PAGE_SIZE;
dma->rx_buf = kmalloc(dma->rx_size, GFP_KERNEL);
-
if (!dma->rx_buf) {
- dma_release_channel(dma->rx_chan);
- dma_release_channel(dma->tx_chan);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err_release_tx;
}
- dma->rx_addr = dma_map_single(dma->rx_chan->device->dev, dma->rx_buf,
+ dma->rx_addr = dma_map_single(p->port.dev, dma->rx_buf,
dma->rx_size, DMA_FROM_DEVICE);
+ if (dma_mapping_error(p->port.dev, dma->rx_addr)) {
+ ret = -EIO;
+ goto err_free_rx;
+ }
spin_lock_irqsave(&p->port.lock, flags);
/* TX buffer */
- dma->tx_addr = dma_map_single(dma->tx_chan->device->dev,
- p->port.state->xmit.buf,
+ dma->tx_addr = dma_map_single(p->port.dev, p->port.state->xmit.buf,
UART_XMIT_SIZE, DMA_TO_DEVICE);
spin_unlock_irqrestore(&p->port.lock, flags);
+ if (dma_mapping_error(p->port.dev, dma->tx_addr)) {
+ ret = -EIO;
+ goto err_unmap_rx;
+ }
return 0;
+
+err_unmap_rx:
+ dma_unmap_single(p->port.dev, dma->rx_addr, dma->rx_size,
+ DMA_FROM_DEVICE);
+err_free_rx:
+ kfree(dma->rx_buf);
+err_release_tx:
+ dma_release_channel(dma->tx_chan);
+err_release_rx:
+ dma_release_channel(dma->rx_chan);
+ return ret;
}
static void s3c24xx_serial_release_dma(struct s3c24xx_uart_port *p)
@@ -922,7 +939,7 @@ static void s3c24xx_serial_release_dma(struct s3c24xx_uart_port *p)
if (dma->rx_chan) {
dmaengine_terminate_all(dma->rx_chan);
- dma_unmap_single(dma->rx_chan->device->dev, dma->rx_addr,
+ dma_unmap_single(p->port.dev, dma->rx_addr,
dma->rx_size, DMA_FROM_DEVICE);
kfree(dma->rx_buf);
dma_release_channel(dma->rx_chan);
@@ -931,7 +948,7 @@ static void s3c24xx_serial_release_dma(struct s3c24xx_uart_port *p)
if (dma->tx_chan) {
dmaengine_terminate_all(dma->tx_chan);
- dma_unmap_single(dma->tx_chan->device->dev, dma->tx_addr,
+ dma_unmap_single(p->port.dev, dma->tx_addr,
UART_XMIT_SIZE, DMA_TO_DEVICE);
dma_release_channel(dma->tx_chan);
dma->tx_chan = NULL;
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 8fda45a45bd3..08669fee6d7f 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -58,7 +58,6 @@ MODULE_DEVICE_TABLE (usb, wdm_ids);
#define WDM_SUSPENDING 8
#define WDM_RESETTING 9
#define WDM_OVERFLOW 10
-#define WDM_DRAIN_ON_OPEN 11
#define WDM_MAX 16
@@ -182,7 +181,7 @@ static void wdm_in_callback(struct urb *urb)
"nonzero urb status received: -ESHUTDOWN\n");
goto skip_error;
case -EPIPE:
- dev_dbg(&desc->intf->dev,
+ dev_err(&desc->intf->dev,
"nonzero urb status received: -EPIPE\n");
break;
default:
@@ -210,25 +209,6 @@ static void wdm_in_callback(struct urb *urb)
desc->reslength = length;
}
}
-
- /*
- * Handling devices with the WDM_DRAIN_ON_OPEN flag set:
- * If desc->resp_count is unset, then the urb was submitted
- * without a prior notification. If the device returned any
- * data, then this implies that it had messages queued without
- * notifying us. Continue reading until that queue is flushed.
- */
- if (!desc->resp_count) {
- if (!length) {
- /* do not propagate the expected -EPIPE */
- desc->rerr = 0;
- goto unlock;
- }
- dev_dbg(&desc->intf->dev, "got %d bytes without notification\n", length);
- set_bit(WDM_RESPONDING, &desc->flags);
- usb_submit_urb(desc->response, GFP_ATOMIC);
- }
-
skip_error:
set_bit(WDM_READ, &desc->flags);
wake_up(&desc->wait);
@@ -243,7 +223,6 @@ static void wdm_in_callback(struct urb *urb)
service_outstanding_interrupt(desc);
}
-unlock:
spin_unlock(&desc->iuspin);
}
@@ -686,17 +665,6 @@ static int wdm_open(struct inode *inode, struct file *file)
dev_err(&desc->intf->dev,
"Error submitting int urb - %d\n", rv);
rv = usb_translate_errors(rv);
- } else if (test_bit(WDM_DRAIN_ON_OPEN, &desc->flags)) {
- /*
- * Some devices keep pending messages queued
- * without resending notifications. We must
- * flush the message queue before we can
- * assume a one-to-one relationship between
- * notifications and messages in the queue
- */
- dev_dbg(&desc->intf->dev, "draining queued data\n");
- set_bit(WDM_RESPONDING, &desc->flags);
- rv = usb_submit_urb(desc->response, GFP_KERNEL);
}
} else {
rv = 0;
@@ -803,8 +771,7 @@ static void wdm_rxwork(struct work_struct *work)
/* --- hotplug --- */
static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor *ep,
- u16 bufsize, int (*manage_power)(struct usb_interface *, int),
- bool drain_on_open)
+ u16 bufsize, int (*manage_power)(struct usb_interface *, int))
{
int rv = -ENOMEM;
struct wdm_device *desc;
@@ -891,68 +858,6 @@ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor
desc->manage_power = manage_power;
- /*
- * "drain_on_open" enables a hack to work around a firmware
- * issue observed on network functions, in particular MBIM
- * functions.
- *
- * Quoting section 7 of the CDC-WMC r1.1 specification:
- *
- * "The firmware shall interpret GetEncapsulatedResponse as a
- * request to read response bytes. The firmware shall send
- * the next wLength bytes from the response. The firmware
- * shall allow the host to retrieve data using any number of
- * GetEncapsulatedResponse requests. The firmware shall
- * return a zero- length reply if there are no data bytes
- * available.
- *
- * The firmware shall send ResponseAvailable notifications
- * periodically, using any appropriate algorithm, to inform
- * the host that there is data available in the reply
- * buffer. The firmware is allowed to send ResponseAvailable
- * notifications even if there is no data available, but
- * this will obviously reduce overall performance."
- *
- * These requirements, although they make equally sense, are
- * often not implemented by network functions. Some firmwares
- * will queue data indefinitely, without ever resending a
- * notification. The result is that the driver and firmware
- * loses "syncronization" if the driver ever fails to respond
- * to a single notification, something which easily can happen
- * on release(). When this happens, the driver will appear to
- * never receive notifications for the most current data. Each
- * notification will only cause a single read, which returns
- * the oldest data in the firmware's queue.
- *
- * The "drain_on_open" hack resolves the situation by draining
- * data from the firmware until none is returned, without a
- * prior notification.
- *
- * This will inevitably race with the firmware, risking that
- * we read data from the device before handling the associated
- * notification. To make things worse, some of the devices
- * needing the hack do not implement the "return zero if no
- * data is available" requirement either. Instead they return
- * an error on the subsequent read in this case. This means
- * that "winning" the race can cause an unexpected EIO to
- * userspace.
- *
- * "winning" the race is more likely on resume() than on
- * open(), and the unexpected error is more harmful in the
- * middle of an open session. The hack is therefore only
- * applied on open(), and not on resume() where it logically
- * would be equally necessary. So we define open() as the only
- * driver <-> device "syncronization point". Should we happen
- * to lose a notification after open(), then syncronization
- * will be lost until release()
- *
- * The hack should not be enabled for CDC WDM devices
- * conforming to the CDC-WMC r1.1 specification. This is
- * ensured by setting drain_on_open to false in wdm_probe().
- */
- if (drain_on_open)
- set_bit(WDM_DRAIN_ON_OPEN, &desc->flags);
-
spin_lock(&wdm_device_list_lock);
list_add(&desc->device_list, &wdm_device_list);
spin_unlock(&wdm_device_list_lock);
@@ -1006,7 +911,7 @@ static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id)
goto err;
ep = &iface->endpoint[0].desc;
- rv = wdm_create(intf, ep, maxcom, &wdm_manage_power, false);
+ rv = wdm_create(intf, ep, maxcom, &wdm_manage_power);
err:
return rv;
@@ -1038,7 +943,7 @@ struct usb_driver *usb_cdc_wdm_register(struct usb_interface *intf,
{
int rv = -EINVAL;
- rv = wdm_create(intf, ep, bufsize, manage_power, true);
+ rv = wdm_create(intf, ep, bufsize, manage_power);
if (rv < 0)
goto err;
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index cdee5130638b..eb87a259d55c 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1331,6 +1331,24 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
*/
if (udev->parent && !PMSG_IS_AUTO(msg))
status = 0;
+
+ /*
+ * If the device is inaccessible, don't try to resume
+ * suspended interfaces and just return the error.
+ */
+ if (status && status != -EBUSY) {
+ int err;
+ u16 devstat;
+
+ err = usb_get_status(udev, USB_RECIP_DEVICE, 0,
+ &devstat);
+ if (err) {
+ dev_err(&udev->dev,
+ "Failed to suspend device, error %d\n",
+ status);
+ goto done;
+ }
+ }
}
/* If the suspend failed, resume interfaces that did get suspended */
@@ -1763,6 +1781,9 @@ static int autosuspend_check(struct usb_device *udev)
int w, i;
struct usb_interface *intf;
+ if (udev->state == USB_STATE_NOTATTACHED)
+ return -ENODEV;
+
/* Fail if autosuspend is disabled, or any interfaces are in use, or
* any interface drivers require remote wakeup but it isn't available.
*/
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index e26bd5e773ad..87ad6b6bfee8 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -29,6 +29,7 @@
#define MAX_USB_MINORS 256
static const struct file_operations *usb_minors[MAX_USB_MINORS];
static DECLARE_RWSEM(minor_rwsem);
+static DEFINE_MUTEX(init_usb_class_mutex);
static int usb_open(struct inode *inode, struct file *file)
{
@@ -111,8 +112,9 @@ static void release_usb_class(struct kref *kref)
static void destroy_usb_class(void)
{
- if (usb_class)
- kref_put(&usb_class->kref, release_usb_class);
+ mutex_lock(&init_usb_class_mutex);
+ kref_put(&usb_class->kref, release_usb_class);
+ mutex_unlock(&init_usb_class_mutex);
}
int usb_major_init(void)
@@ -173,7 +175,10 @@ int usb_register_dev(struct usb_interface *intf,
if (intf->minor >= 0)
return -EADDRINUSE;
+ mutex_lock(&init_usb_class_mutex);
retval = init_usb_class();
+ mutex_unlock(&init_usb_class_mutex);
+
if (retval)
return retval;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 5286bf67869a..9dca59ef18b3 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1066,6 +1066,9 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
portstatus = portchange = 0;
status = hub_port_status(hub, port1, &portstatus, &portchange);
+ if (status)
+ goto abort;
+
if (udev || (portstatus & USB_PORT_STAT_CONNECTION))
dev_dbg(&port_dev->dev, "status %04x change %04x\n",
portstatus, portchange);
@@ -1198,7 +1201,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
/* Scan all ports that need attention */
kick_hub_wq(hub);
-
+ abort:
if (type == HUB_INIT2 || type == HUB_INIT3) {
/* Allow autosuspend if it was suppressed */
disconnected:
@@ -2084,6 +2087,12 @@ void usb_disconnect(struct usb_device **pdev)
dev_info(&udev->dev, "USB disconnect, device number %d\n",
udev->devnum);
+ /*
+ * Ensure that the pm runtime code knows that the USB device
+ * is in the process of being disconnected.
+ */
+ pm_runtime_barrier(&udev->dev);
+
usb_lock_device(udev);
hub_disconnect_children(udev);
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 8ad203296079..f3ee80ece682 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -460,6 +460,7 @@ config USB_CONFIGFS_F_TCM
choice
tristate "USB Gadget Drivers"
default USB_ETH
+ optional
help
A Linux "Gadget Driver" talks to the USB Peripheral Controller
driver through the abstract "gadget" API. Some other operating
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index ba1853f4e407..3f8f28f6fa94 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1502,6 +1502,17 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
*/
max_esit_payload = xhci_get_max_esit_payload(udev, ep);
interval = xhci_get_endpoint_interval(udev, ep);
+
+ /* Periodic endpoint bInterval limit quirk */
+ if (usb_endpoint_xfer_int(&ep->desc) ||
+ usb_endpoint_xfer_isoc(&ep->desc)) {
+ if ((xhci->quirks & XHCI_LIMIT_ENDPOINT_INTERVAL_7) &&
+ udev->speed >= USB_SPEED_HIGH &&
+ interval >= 7) {
+ interval = 6;
+ }
+ }
+
mult = xhci_get_endpoint_mult(udev, ep);
max_packet = usb_endpoint_maxp(&ep->desc);
max_burst = xhci_get_endpoint_max_burst(udev, ep);
@@ -2480,7 +2491,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
(xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) |
xhci->cmd_ring->cycle_state;
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
- "// Setting command ring address to 0x%x", val);
+ "// Setting command ring address to 0x%016llx", val_64);
xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring);
xhci_dbg_cmd_ptrs(xhci);
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index fc99f51d12e1..7b86508ac8cf 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -199,6 +199,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == 0x1042)
xhci->quirks |= XHCI_BROKEN_STREAMS;
+ if (pdev->vendor == PCI_VENDOR_ID_TI && pdev->device == 0x8241)
+ xhci->quirks |= XHCI_LIMIT_ENDPOINT_INTERVAL_7;
+
if (xhci->quirks & XHCI_RESET_ON_RESUME)
xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
"QUIRK: Resetting on resume");
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index da3eb695fe54..2496bd6304ca 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1818,6 +1818,7 @@ struct xhci_hcd {
#define XHCI_MISSING_CAS (1 << 24)
/* For controller with a broken Port Disable implementation */
#define XHCI_BROKEN_PORT_PED (1 << 25)
+#define XHCI_LIMIT_ENDPOINT_INTERVAL_7 (1 << 26)
unsigned int num_active_eps;
unsigned int limit_active_eps;
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 17c081068257..26ae5d1a2a4e 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -159,6 +159,7 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
case USB_ENDPOINT_XFER_INT:
if (dev->info->intr)
goto try_intr;
+ continue;
case USB_ENDPOINT_XFER_ISOC:
if (dev->info->iso)
goto try_iso;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c540de15aad2..03e6319b6d1c 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -873,6 +873,7 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
USB_CLASS_VENDOR_SPEC,
USB_SUBCLASS_VENDOR_SPEC, 0x00) },
+ { USB_DEVICE_INTERFACE_NUMBER(ACTEL_VID, MICROSEMI_ARROW_SF2PLUS_BOARD_PID, 2) },
{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 48ee04c94a75..71fb9e59db71 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -873,6 +873,12 @@
#define FIC_VID 0x1457
#define FIC_NEO1973_DEBUG_PID 0x5118
+/*
+ * Actel / Microsemi
+ */
+#define ACTEL_VID 0x1514
+#define MICROSEMI_ARROW_SF2PLUS_BOARD_PID 0x2008
+
/* Olimex */
#define OLIMEX_VID 0x15BA
#define OLIMEX_ARM_USB_OCD_PID 0x0003
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 32d2633092a3..a8a079ba9477 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -246,69 +246,46 @@ static int vfio_iova_put_vfio_pfn(struct vfio_dma *dma, struct vfio_pfn *vpfn)
return ret;
}
-struct vwork {
- struct mm_struct *mm;
- long npage;
- struct work_struct work;
-};
-
-/* delayed decrement/increment for locked_vm */
-static void vfio_lock_acct_bg(struct work_struct *work)
-{
- struct vwork *vwork = container_of(work, struct vwork, work);
- struct mm_struct *mm;
-
- mm = vwork->mm;
- down_write(&mm->mmap_sem);
- mm->locked_vm += vwork->npage;
- up_write(&mm->mmap_sem);
- mmput(mm);
- kfree(vwork);
-}
-
-static void vfio_lock_acct(struct task_struct *task, long npage)
+static int vfio_lock_acct(struct task_struct *task, long npage, bool *lock_cap)
{
- struct vwork *vwork;
struct mm_struct *mm;
bool is_current;
+ int ret;
if (!npage)
- return;
+ return 0;
is_current = (task->mm == current->mm);
mm = is_current ? task->mm : get_task_mm(task);
if (!mm)
- return; /* process exited */
+ return -ESRCH; /* process exited */
- if (down_write_trylock(&mm->mmap_sem)) {
- mm->locked_vm += npage;
- up_write(&mm->mmap_sem);
- if (!is_current)
- mmput(mm);
- return;
- }
+ ret = down_write_killable(&mm->mmap_sem);
+ if (!ret) {
+ if (npage > 0) {
+ if (lock_cap ? !*lock_cap :
+ !has_capability(task, CAP_IPC_LOCK)) {
+ unsigned long limit;
+
+ limit = task_rlimit(task,
+ RLIMIT_MEMLOCK) >> PAGE_SHIFT;
+
+ if (mm->locked_vm + npage > limit)
+ ret = -ENOMEM;
+ }
+ }
+
+ if (!ret)
+ mm->locked_vm += npage;
- if (is_current) {
- mm = get_task_mm(task);
- if (!mm)
- return;
+ up_write(&mm->mmap_sem);
}
- /*
- * Couldn't get mmap_sem lock, so must setup to update
- * mm->locked_vm later. If locked_vm were atomic, we
- * wouldn't need this silliness
- */
- vwork = kmalloc(sizeof(struct vwork), GFP_KERNEL);
- if (WARN_ON(!vwork)) {
+ if (!is_current)
mmput(mm);
- return;
- }
- INIT_WORK(&vwork->work, vfio_lock_acct_bg);
- vwork->mm = mm;
- vwork->npage = npage;
- schedule_work(&vwork->work);
+
+ return ret;
}
/*
@@ -405,7 +382,7 @@ static int vaddr_get_pfn(struct mm_struct *mm, unsigned long vaddr,
static long vfio_pin_pages_remote(struct vfio_dma *dma, unsigned long vaddr,
long npage, unsigned long *pfn_base)
{
- unsigned long limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
+ unsigned long pfn = 0, limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
bool lock_cap = capable(CAP_IPC_LOCK);
long ret, pinned = 0, lock_acct = 0;
bool rsvd;
@@ -442,8 +419,6 @@ static long vfio_pin_pages_remote(struct vfio_dma *dma, unsigned long vaddr,
/* Lock all the consecutive pages from pfn_base */
for (vaddr += PAGE_SIZE, iova += PAGE_SIZE; pinned < npage;
pinned++, vaddr += PAGE_SIZE, iova += PAGE_SIZE) {
- unsigned long pfn = 0;
-
ret = vaddr_get_pfn(current->mm, vaddr, dma->prot, &pfn);
if (ret)
break;
@@ -460,14 +435,25 @@ static long vfio_pin_pages_remote(struct vfio_dma *dma, unsigned long vaddr,
put_pfn(pfn, dma->prot);
pr_warn("%s: RLIMIT_MEMLOCK (%ld) exceeded\n",
__func__, limit << PAGE_SHIFT);
- break;
+ ret = -ENOMEM;
+ goto unpin_out;
}
lock_acct++;
}
}
out:
- vfio_lock_acct(current, lock_acct);
+ ret = vfio_lock_acct(current, lock_acct, &lock_cap);
+
+unpin_out:
+ if (ret) {
+ if (!rsvd) {
+ for (pfn = *pfn_base ; pinned ; pfn++, pinned--)
+ put_pfn(pfn, dma->prot);
+ }
+
+ return ret;
+ }
return pinned;
}
@@ -488,7 +474,7 @@ static long vfio_unpin_pages_remote(struct vfio_dma *dma, dma_addr_t iova,
}
if (do_accounting)
- vfio_lock_acct(dma->task, locked - unlocked);
+ vfio_lock_acct(dma->task, locked - unlocked, NULL);
return unlocked;
}
@@ -522,8 +508,14 @@ static int vfio_pin_page_external(struct vfio_dma *dma, unsigned long vaddr,
goto pin_page_exit;
}
- if (!rsvd && do_accounting)
- vfio_lock_acct(dma->task, 1);
+ if (!rsvd && do_accounting) {
+ ret = vfio_lock_acct(dma->task, 1, &lock_cap);
+ if (ret) {
+ put_pfn(*pfn_base, dma->prot);
+ goto pin_page_exit;
+ }
+ }
+
ret = 1;
pin_page_exit:
@@ -543,7 +535,7 @@ static int vfio_unpin_page_external(struct vfio_dma *dma, dma_addr_t iova,
unlocked = vfio_iova_put_vfio_pfn(dma, vpfn);
if (do_accounting)
- vfio_lock_acct(dma->task, -unlocked);
+ vfio_lock_acct(dma->task, -unlocked, NULL);
return unlocked;
}
@@ -740,7 +732,7 @@ static long vfio_unmap_unpin(struct vfio_iommu *iommu, struct vfio_dma *dma,
dma->iommu_mapped = false;
if (do_accounting) {
- vfio_lock_acct(dma->task, -unlocked);
+ vfio_lock_acct(dma->task, -unlocked, NULL);
return 0;
}
return unlocked;
@@ -1382,7 +1374,7 @@ static void vfio_iommu_unmap_unpin_reaccount(struct vfio_iommu *iommu)
if (!is_invalid_reserved_pfn(vpfn->pfn))
locked++;
}
- vfio_lock_acct(dma->task, locked - unlocked);
+ vfio_lock_acct(dma->task, locked - unlocked, NULL);
}
}
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 56039dfbc674..c2a7ec8e9c03 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -103,12 +103,11 @@ void invalidate_bdev(struct block_device *bdev)
{
struct address_space *mapping = bdev->bd_inode->i_mapping;
- if (mapping->nrpages == 0)
- return;
-
- invalidate_bh_lrus();
- lru_add_drain_all(); /* make sure all lru add caches are flushed */
- invalidate_mapping_pages(mapping, 0, -1);
+ if (mapping->nrpages) {
+ invalidate_bh_lrus();
+ lru_add_drain_all(); /* make sure all lru add caches are flushed */
+ invalidate_mapping_pages(mapping, 0, -1);
+ }
/* 99% of the time, we don't need to flush the cleancache on the bdev.
* But, for the strange corners, lets be cautious
*/
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index febc28f9e2c2..75267cdd5dfd 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -392,6 +392,7 @@ static int __set_xattr(struct ceph_inode_info *ci,
if (update_xattr) {
int err = 0;
+
if (xattr && (flags & XATTR_CREATE))
err = -EEXIST;
else if (!xattr && (flags & XATTR_REPLACE))
@@ -399,12 +400,14 @@ static int __set_xattr(struct ceph_inode_info *ci,
if (err) {
kfree(name);
kfree(val);
+ kfree(*newxattr);
return err;
}
if (update_xattr < 0) {
if (xattr)
__remove_xattr(ci, xattr);
kfree(name);
+ kfree(*newxattr);
return 0;
}
}
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index 02b071bf3732..a0b3e7d1be48 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -83,6 +83,9 @@ convert_sfm_char(const __u16 src_char, char *target)
case SFM_COLON:
*target = ':';
break;
+ case SFM_DOUBLEQUOTE:
+ *target = '"';
+ break;
case SFM_ASTERISK:
*target = '*';
break;
@@ -418,6 +421,9 @@ static __le16 convert_to_sfm_char(char src_char, bool end_of_string)
case ':':
dest_char = cpu_to_le16(SFM_COLON);
break;
+ case '"':
+ dest_char = cpu_to_le16(SFM_DOUBLEQUOTE);
+ break;
case '*':
dest_char = cpu_to_le16(SFM_ASTERISK);
break;
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h
index 3d7298cc0aeb..8a79a34e66b8 100644
--- a/fs/cifs/cifs_unicode.h
+++ b/fs/cifs/cifs_unicode.h
@@ -57,6 +57,7 @@
* not conflict (although almost does) with the mapping above.
*/
+#define SFM_DOUBLEQUOTE ((__u16) 0xF020)
#define SFM_ASTERISK ((__u16) 0xF021)
#define SFM_QUESTION ((__u16) 0xF025)
#define SFM_COLON ((__u16) 0xF022)
@@ -64,8 +65,8 @@
#define SFM_LESSTHAN ((__u16) 0xF023)
#define SFM_PIPE ((__u16) 0xF027)
#define SFM_SLASH ((__u16) 0xF026)
-#define SFM_PERIOD ((__u16) 0xF028)
-#define SFM_SPACE ((__u16) 0xF029)
+#define SFM_SPACE ((__u16) 0xF028)
+#define SFM_PERIOD ((__u16) 0xF029)
/*
* Mapping mechanism to use when one of the seven reserved characters is
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index dd3f5fabfdf6..aa553d0b58db 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -87,6 +87,7 @@ extern mempool_t *cifs_req_poolp;
extern mempool_t *cifs_mid_poolp;
struct workqueue_struct *cifsiod_wq;
+struct workqueue_struct *cifsoplockd_wq;
__u32 cifs_lock_secret;
/*
@@ -1369,9 +1370,16 @@ init_cifs(void)
goto out_clean_proc;
}
+ cifsoplockd_wq = alloc_workqueue("cifsoplockd",
+ WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+ if (!cifsoplockd_wq) {
+ rc = -ENOMEM;
+ goto out_destroy_cifsiod_wq;
+ }
+
rc = cifs_fscache_register();
if (rc)
- goto out_destroy_wq;
+ goto out_destroy_cifsoplockd_wq;
rc = cifs_init_inodecache();
if (rc)
@@ -1419,7 +1427,9 @@ init_cifs(void)
cifs_destroy_inodecache();
out_unreg_fscache:
cifs_fscache_unregister();
-out_destroy_wq:
+out_destroy_cifsoplockd_wq:
+ destroy_workqueue(cifsoplockd_wq);
+out_destroy_cifsiod_wq:
destroy_workqueue(cifsiod_wq);
out_clean_proc:
cifs_proc_clean();
@@ -1442,6 +1452,7 @@ exit_cifs(void)
cifs_destroy_mids();
cifs_destroy_inodecache();
cifs_fscache_unregister();
+ destroy_workqueue(cifsoplockd_wq);
destroy_workqueue(cifsiod_wq);
cifs_proc_clean();
}
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 37f5a41cc50c..17f0e732eedc 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1683,6 +1683,7 @@ void cifs_oplock_break(struct work_struct *work);
extern const struct slow_work_ops cifs_oplock_break_ops;
extern struct workqueue_struct *cifsiod_wq;
+extern struct workqueue_struct *cifsoplockd_wq;
extern __u32 cifs_lock_secret;
extern mempool_t *cifs_mid_poolp;
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 5d21f00ae341..205fd94f52fd 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -718,6 +718,9 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
if (rc)
return rc;
+ if (server->capabilities & CAP_UNICODE)
+ smb->hdr.Flags2 |= SMBFLG2_UNICODE;
+
/* set up echo request */
smb->hdr.Tid = 0xffff;
smb->hdr.WordCount = 1;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index d82467cfb0e2..d95744d8b8ab 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2912,16 +2912,14 @@ match_prepath(struct super_block *sb, struct cifs_mnt_data *mnt_data)
{
struct cifs_sb_info *old = CIFS_SB(sb);
struct cifs_sb_info *new = mnt_data->cifs_sb;
+ bool old_set = old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH;
+ bool new_set = new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH;
- if (old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) {
- if (!(new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH))
- return 0;
- /* The prepath should be null terminated strings */
- if (strcmp(new->prepath, old->prepath))
- return 0;
-
+ if (old_set && new_set && !strcmp(new->prepath, old->prepath))
return 1;
- }
+ else if (!old_set && !new_set)
+ return 1;
+
return 0;
}
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 265c45fe4ea5..76fb0917dc8c 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -74,7 +74,8 @@ static long cifs_ioctl_copychunk(unsigned int xid, struct file *dst_file,
rc = cifs_file_copychunk_range(xid, src_file.file, 0, dst_file, 0,
src_inode->i_size, 0);
-
+ if (rc > 0)
+ rc = 0;
out_fput:
fdput(src_file);
out_drop_write:
@@ -208,10 +209,14 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
rc = -EOPNOTSUPP;
break;
case CIFS_IOC_GET_MNT_INFO:
+ if (pSMBFile == NULL)
+ break;
tcon = tlink_tcon(pSMBFile->tlink);
rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg);
break;
case CIFS_ENUMERATE_SNAPSHOTS:
+ if (pSMBFile == NULL)
+ break;
if (arg == 0) {
rc = -EINVAL;
goto cifs_ioc_exit;
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index d3fb11529ed9..b578c6d09597 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -492,7 +492,7 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&pCifsInode->flags);
- queue_work(cifsiod_wq,
+ queue_work(cifsoplockd_wq,
&netfile->oplock_break);
netfile->oplock_break_cancelled = false;
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 1a04b3a5beb1..7b08a1446a7f 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -499,7 +499,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
else
cfile->oplock_break_cancelled = true;
- queue_work(cifsiod_wq, &cfile->oplock_break);
+ queue_work(cifsoplockd_wq, &cfile->oplock_break);
kfree(lw);
return true;
}
@@ -643,7 +643,8 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&cinode->flags);
spin_unlock(&cfile->file_info_lock);
- queue_work(cifsiod_wq, &cfile->oplock_break);
+ queue_work(cifsoplockd_wq,
+ &cfile->oplock_break);
spin_unlock(&tcon->open_file_lock);
spin_unlock(&cifs_tcp_ses_lock);
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 152e37f2ad92..c58691834eb2 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -942,6 +942,7 @@ smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon,
}
if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) {
rc = -ERANGE;
+ kfree(retbuf);
return rc;
}
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 02da648041fc..0fd63f0bc440 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -632,8 +632,12 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
}
if (rsplen != sizeof(struct validate_negotiate_info_rsp)) {
- cifs_dbg(VFS, "invalid size of protocol negotiate response\n");
- return -EIO;
+ cifs_dbg(VFS, "invalid protocol negotiate response size: %d\n",
+ rsplen);
+
+ /* relax check since Mac returns max bufsize allowed on ioctl */
+ if (rsplen > CIFSMaxBufSize)
+ return -EIO;
}
/* check validate negotiate info response matches what we got earlier */
@@ -1853,8 +1857,12 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
* than one credit. Windows typically sets this smaller, but for some
* ioctls it may be useful to allow server to send more. No point
* limiting what the server can send as long as fits in one credit
+ * Unfortunately - we can not handle more than CIFS_MAX_MSG_SIZE
+ * (by default, note that it can be overridden to make max larger)
+ * in responses (except for read responses which can be bigger.
+ * We may want to bump this limit up
*/
- req->MaxOutputResponse = cpu_to_le32(0xFF00); /* < 64K uses 1 credit */
+ req->MaxOutputResponse = cpu_to_le32(CIFSMaxBufSize);
if (is_fsctl)
req->Flags = cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL);
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 37b49894c762..15bf9c31a34d 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -300,7 +300,7 @@ int fscrypt_fname_disk_to_usr(struct inode *inode,
} else {
memset(buf, 0, 8);
}
- memcpy(buf + 8, iname->name + iname->len - 16, 16);
+ memcpy(buf + 8, iname->name + ((iname->len - 17) & ~15), 16);
oname->name[0] = '_';
oname->len = 1 + digest_encode(buf, 24, oname->name + 1);
return 0;
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index 4908906d54d5..fc3660d82a7f 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -143,27 +143,61 @@ int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg)
}
EXPORT_SYMBOL(fscrypt_ioctl_get_policy);
+/**
+ * fscrypt_has_permitted_context() - is a file's encryption policy permitted
+ * within its directory?
+ *
+ * @parent: inode for parent directory
+ * @child: inode for file being looked up, opened, or linked into @parent
+ *
+ * Filesystems must call this before permitting access to an inode in a
+ * situation where the parent directory is encrypted (either before allowing
+ * ->lookup() to succeed, or for a regular file before allowing it to be opened)
+ * and before any operation that involves linking an inode into an encrypted
+ * directory, including link, rename, and cross rename. It enforces the
+ * constraint that within a given encrypted directory tree, all files use the
+ * same encryption policy. The pre-access check is needed to detect potentially
+ * malicious offline violations of this constraint, while the link and rename
+ * checks are needed to prevent online violations of this constraint.
+ *
+ * Return: 1 if permitted, 0 if forbidden. If forbidden, the caller must fail
+ * the filesystem operation with EPERM.
+ */
int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
{
- struct fscrypt_info *parent_ci, *child_ci;
+ const struct fscrypt_operations *cops = parent->i_sb->s_cop;
+ const struct fscrypt_info *parent_ci, *child_ci;
+ struct fscrypt_context parent_ctx, child_ctx;
int res;
- if ((parent == NULL) || (child == NULL)) {
- printk(KERN_ERR "parent %p child %p\n", parent, child);
- BUG_ON(1);
- }
-
/* No restrictions on file types which are never encrypted */
if (!S_ISREG(child->i_mode) && !S_ISDIR(child->i_mode) &&
!S_ISLNK(child->i_mode))
return 1;
- /* no restrictions if the parent directory is not encrypted */
- if (!parent->i_sb->s_cop->is_encrypted(parent))
+ /* No restrictions if the parent directory is unencrypted */
+ if (!cops->is_encrypted(parent))
return 1;
- /* if the child directory is not encrypted, this is always a problem */
- if (!parent->i_sb->s_cop->is_encrypted(child))
+
+ /* Encrypted directories must not contain unencrypted files */
+ if (!cops->is_encrypted(child))
return 0;
+
+ /*
+ * Both parent and child are encrypted, so verify they use the same
+ * encryption policy. Compare the fscrypt_info structs if the keys are
+ * available, otherwise retrieve and compare the fscrypt_contexts.
+ *
+ * Note that the fscrypt_context retrieval will be required frequently
+ * when accessing an encrypted directory tree without the key.
+ * Performance-wise this is not a big deal because we already don't
+ * really optimize for file access without the key (to the extent that
+ * such access is even possible), given that any attempted access
+ * already causes a fscrypt_context retrieval and keyring search.
+ *
+ * In any case, if an unexpected error occurs, fall back to "forbidden".
+ */
+
res = fscrypt_get_encryption_info(parent);
if (res)
return 0;
@@ -172,17 +206,32 @@ int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
return 0;
parent_ci = parent->i_crypt_info;
child_ci = child->i_crypt_info;
- if (!parent_ci && !child_ci)
- return 1;
- if (!parent_ci || !child_ci)
+
+ if (parent_ci && child_ci) {
+ return memcmp(parent_ci->ci_master_key, child_ci->ci_master_key,
+ FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+ (parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
+ (parent_ci->ci_filename_mode ==
+ child_ci->ci_filename_mode) &&
+ (parent_ci->ci_flags == child_ci->ci_flags);
+ }
+
+ res = cops->get_context(parent, &parent_ctx, sizeof(parent_ctx));
+ if (res != sizeof(parent_ctx))
+ return 0;
+
+ res = cops->get_context(child, &child_ctx, sizeof(child_ctx));
+ if (res != sizeof(child_ctx))
return 0;
- return (memcmp(parent_ci->ci_master_key,
- child_ci->ci_master_key,
- FS_KEY_DESCRIPTOR_SIZE) == 0 &&
- (parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
- (parent_ci->ci_filename_mode == child_ci->ci_filename_mode) &&
- (parent_ci->ci_flags == child_ci->ci_flags));
+ return memcmp(parent_ctx.master_key_descriptor,
+ child_ctx.master_key_descriptor,
+ FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+ (parent_ctx.contents_encryption_mode ==
+ child_ctx.contents_encryption_mode) &&
+ (parent_ctx.filenames_encryption_mode ==
+ child_ctx.filenames_encryption_mode) &&
+ (parent_ctx.flags == child_ctx.flags);
}
EXPORT_SYMBOL(fscrypt_has_permitted_context);
diff --git a/fs/dax.c b/fs/dax.c
index 85abd741253d..b87f3ab742ba 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -507,35 +507,6 @@ int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index)
}
/*
- * Invalidate exceptional DAX entry if easily possible. This handles DAX
- * entries for invalidate_inode_pages() so we evict the entry only if we can
- * do so without blocking.
- */
-int dax_invalidate_mapping_entry(struct address_space *mapping, pgoff_t index)
-{
- int ret = 0;
- void *entry, **slot;
- struct radix_tree_root *page_tree = &mapping->page_tree;
-
- spin_lock_irq(&mapping->tree_lock);
- entry = __radix_tree_lookup(page_tree, index, NULL, &slot);
- if (!entry || !radix_tree_exceptional_entry(entry) ||
- slot_locked(mapping, slot))
- goto out;
- if (radix_tree_tag_get(page_tree, index, PAGECACHE_TAG_DIRTY) ||
- radix_tree_tag_get(page_tree, index, PAGECACHE_TAG_TOWRITE))
- goto out;
- radix_tree_delete(page_tree, index);
- mapping->nrexceptional--;
- ret = 1;
-out:
- spin_unlock_irq(&mapping->tree_lock);
- if (ret)
- dax_wake_mapping_entry_waiter(mapping, index, entry, true);
- return ret;
-}
-
-/*
* Invalidate exceptional DAX entry if it is clean.
*/
int dax_invalidate_mapping_entry_sync(struct address_space *mapping,
@@ -1032,7 +1003,7 @@ dax_iomap_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
* into page tables. We have to tear down these mappings so that data
* written by write(2) is visible in mmap.
*/
- if ((iomap->flags & IOMAP_F_NEW) && inode->i_mapping->nrpages) {
+ if (iomap->flags & IOMAP_F_NEW) {
invalidate_inode_pages2_range(inode->i_mapping,
pos >> PAGE_SHIFT,
(end - 1) >> PAGE_SHIFT);
@@ -1382,6 +1353,16 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf,
goto fallback;
/*
+ * grab_mapping_entry() will make sure we get a 2M empty entry, a DAX
+ * PMD or a HZP entry. If it can't (because a 4k page is already in
+ * the tree, for instance), it will return -EEXIST and we just fall
+ * back to 4k entries.
+ */
+ entry = grab_mapping_entry(mapping, pgoff, RADIX_DAX_PMD);
+ if (IS_ERR(entry))
+ goto fallback;
+
+ /*
* Note that we don't use iomap_apply here. We aren't doing I/O, only
* setting up a mapping, so really we're using iomap_begin() as a way
* to look up our filesystem block.
@@ -1389,21 +1370,11 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf,
pos = (loff_t)pgoff << PAGE_SHIFT;
error = ops->iomap_begin(inode, pos, PMD_SIZE, iomap_flags, &iomap);
if (error)
- goto fallback;
+ goto unlock_entry;
if (iomap.offset + iomap.length < pos + PMD_SIZE)
goto finish_iomap;
- /*
- * grab_mapping_entry() will make sure we get a 2M empty entry, a DAX
- * PMD or a HZP entry. If it can't (because a 4k page is already in
- * the tree, for instance), it will return -EEXIST and we just fall
- * back to 4k entries.
- */
- entry = grab_mapping_entry(mapping, pgoff, RADIX_DAX_PMD);
- if (IS_ERR(entry))
- goto finish_iomap;
-
switch (iomap.type) {
case IOMAP_MAPPED:
result = dax_pmd_insert_mapping(vmf, &iomap, pos, &entry);
@@ -1411,7 +1382,7 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf,
case IOMAP_UNWRITTEN:
case IOMAP_HOLE:
if (WARN_ON_ONCE(write))
- goto unlock_entry;
+ break;
result = dax_pmd_load_hole(vmf, &iomap, &entry);
break;
default:
@@ -1419,8 +1390,6 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf,
break;
}
- unlock_entry:
- put_locked_mapping_entry(mapping, pgoff, entry);
finish_iomap:
if (ops->iomap_end) {
int copied = PMD_SIZE;
@@ -1436,6 +1405,8 @@ static int dax_iomap_pmd_fault(struct vm_fault *vmf,
ops->iomap_end(inode, pos, PMD_SIZE, copied, iomap_flags,
&iomap);
}
+ unlock_entry:
+ put_locked_mapping_entry(mapping, pgoff, entry);
fallback:
if (result == VM_FAULT_FALLBACK) {
split_huge_pmd(vma, vmf->pmd, vmf->address);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index cefa9835f275..831fd6beebf0 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -257,6 +257,7 @@ static int ext4_dax_huge_fault(struct vm_fault *vmf,
enum page_entry_size pe_size)
{
int result;
+ handle_t *handle = NULL;
struct inode *inode = file_inode(vmf->vma->vm_file);
struct super_block *sb = inode->i_sb;
bool write = vmf->flags & FAULT_FLAG_WRITE;
@@ -264,12 +265,24 @@ static int ext4_dax_huge_fault(struct vm_fault *vmf,
if (write) {
sb_start_pagefault(sb);
file_update_time(vmf->vma->vm_file);
+ down_read(&EXT4_I(inode)->i_mmap_sem);
+ handle = ext4_journal_start_sb(sb, EXT4_HT_WRITE_PAGE,
+ EXT4_DATA_TRANS_BLOCKS(sb));
+ } else {
+ down_read(&EXT4_I(inode)->i_mmap_sem);
}
- down_read(&EXT4_I(inode)->i_mmap_sem);
- result = dax_iomap_fault(vmf, pe_size, &ext4_iomap_ops);
- up_read(&EXT4_I(inode)->i_mmap_sem);
- if (write)
+ if (!IS_ERR(handle))
+ result = dax_iomap_fault(vmf, pe_size, &ext4_iomap_ops);
+ else
+ result = VM_FAULT_SIGBUS;
+ if (write) {
+ if (!IS_ERR(handle))
+ ext4_journal_stop(handle);
+ up_read(&EXT4_I(inode)->i_mmap_sem);
sb_end_pagefault(sb);
+ } else {
+ up_read(&EXT4_I(inode)->i_mmap_sem);
+ }
return result;
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index b9ffa9f4191f..88203ae5b154 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5874,6 +5874,11 @@ int ext4_page_mkwrite(struct vm_fault *vmf)
file_update_time(vma->vm_file);
down_read(&EXT4_I(inode)->i_mmap_sem);
+
+ ret = ext4_convert_inline_data(inode);
+ if (ret)
+ goto out_ret;
+
/* Delalloc case is easy... */
if (test_opt(inode->i_sb, DELALLOC) &&
!ext4_should_journal_data(inode) &&
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 07e5e1405771..eb2dea8287c1 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1255,9 +1255,9 @@ static inline int ext4_match(struct ext4_filename *fname,
if (unlikely(!name)) {
if (fname->usr_fname->name[0] == '_') {
int ret;
- if (de->name_len < 16)
+ if (de->name_len <= 32)
return 0;
- ret = memcmp(de->name + de->name_len - 16,
+ ret = memcmp(de->name + ((de->name_len - 17) & ~15),
fname->crypto_buf.name + 8, 16);
return (ret == 0) ? 1 : 0;
}
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 1602b4bccae6..dd24476e8d2c 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -309,7 +309,7 @@ static void __f2fs_submit_merged_bio(struct f2fs_sb_info *sbi,
if (type >= META_FLUSH) {
io->fio.type = META_FLUSH;
io->fio.op = REQ_OP_WRITE;
- io->fio.op_flags = REQ_META | REQ_PRIO;
+ io->fio.op_flags = REQ_META | REQ_PRIO | REQ_SYNC;
if (!test_opt(sbi, NOBARRIER))
io->fio.op_flags |= REQ_PREFLUSH | REQ_FUA;
}
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 8d5c62b07b28..96e9e7fa64dd 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -130,19 +130,29 @@ struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
continue;
}
- /* encrypted case */
+ if (de->hash_code != namehash)
+ goto not_match;
+
de_name.name = d->filename[bit_pos];
de_name.len = le16_to_cpu(de->name_len);
- /* show encrypted name */
- if (fname->hash) {
- if (de->hash_code == cpu_to_le32(fname->hash))
- goto found;
- } else if (de_name.len == name->len &&
- de->hash_code == namehash &&
- !memcmp(de_name.name, name->name, name->len))
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
+ if (unlikely(!name->name)) {
+ if (fname->usr_fname->name[0] == '_') {
+ if (de_name.len > 32 &&
+ !memcmp(de_name.name + ((de_name.len - 17) & ~15),
+ fname->crypto_buf.name + 8, 16))
+ goto found;
+ goto not_match;
+ }
+ name->name = fname->crypto_buf.name;
+ name->len = fname->crypto_buf.len;
+ }
+#endif
+ if (de_name.len == name->len &&
+ !memcmp(de_name.name, name->name, name->len))
goto found;
-
+not_match:
if (max_slots && max_len > *max_slots)
*max_slots = max_len;
max_len = 0;
@@ -170,12 +180,7 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
struct f2fs_dir_entry *de = NULL;
bool room = false;
int max_slots;
- f2fs_hash_t namehash;
-
- if(fname->hash)
- namehash = cpu_to_le32(fname->hash);
- else
- namehash = f2fs_dentry_hash(&name);
+ f2fs_hash_t namehash = f2fs_dentry_hash(&name, fname);
nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level);
nblock = bucket_blocks(level);
@@ -207,13 +212,9 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
f2fs_put_page(dentry_page, 0);
}
- /* This is to increase the speed of f2fs_create */
- if (!de && room) {
- F2FS_I(dir)->task = current;
- if (F2FS_I(dir)->chash != namehash) {
- F2FS_I(dir)->chash = namehash;
- F2FS_I(dir)->clevel = level;
- }
+ if (!de && room && F2FS_I(dir)->chash != namehash) {
+ F2FS_I(dir)->chash = namehash;
+ F2FS_I(dir)->clevel = level;
}
return de;
@@ -254,6 +255,9 @@ struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
break;
}
out:
+ /* This is to increase the speed of f2fs_create */
+ if (!de)
+ F2FS_I(dir)->task = current;
return de;
}
@@ -542,7 +546,7 @@ int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
level = 0;
slots = GET_DENTRY_SLOTS(new_name->len);
- dentry_hash = f2fs_dentry_hash(new_name);
+ dentry_hash = f2fs_dentry_hash(new_name, NULL);
current_depth = F2FS_I(dir)->i_current_depth;
if (F2FS_I(dir)->chash == dentry_hash) {
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 0a6e115562f6..05d7e2cefc56 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2133,7 +2133,8 @@ int sanity_check_ckpt(struct f2fs_sb_info *sbi);
/*
* hash.c
*/
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info);
+f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
+ struct fscrypt_name *fname);
/*
* node.c
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 418fd9881646..b5a62d4a3a69 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -182,7 +182,7 @@ static unsigned int get_max_cost(struct f2fs_sb_info *sbi,
if (p->alloc_mode == SSR)
return sbi->blocks_per_seg;
if (p->gc_mode == GC_GREEDY)
- return sbi->blocks_per_seg * p->ofs_unit;
+ return 2 * sbi->blocks_per_seg * p->ofs_unit;
else if (p->gc_mode == GC_CB)
return UINT_MAX;
else /* No other gc_mode */
diff --git a/fs/f2fs/hash.c b/fs/f2fs/hash.c
index 71b7206c431e..eb2e031ea887 100644
--- a/fs/f2fs/hash.c
+++ b/fs/f2fs/hash.c
@@ -70,7 +70,8 @@ static void str2hashbuf(const unsigned char *msg, size_t len,
*buf++ = pad;
}
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info)
+f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
+ struct fscrypt_name *fname)
{
__u32 hash;
f2fs_hash_t f2fs_hash;
@@ -79,6 +80,10 @@ f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info)
const unsigned char *name = name_info->name;
size_t len = name_info->len;
+ /* encrypted bigname case */
+ if (fname && !fname->disk_name.name)
+ return cpu_to_le32(fname->hash);
+
if (is_dot_dotdot(name_info))
return 0;
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index e32a9e527968..fa729ff6b2f9 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -296,7 +296,7 @@ struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
return NULL;
}
- namehash = f2fs_dentry_hash(&name);
+ namehash = f2fs_dentry_hash(&name, fname);
inline_dentry = inline_data_addr(ipage);
@@ -533,7 +533,7 @@ int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
f2fs_wait_on_page_writeback(ipage, NODE, true);
- name_hash = f2fs_dentry_hash(new_name);
+ name_hash = f2fs_dentry_hash(new_name, NULL);
make_dentry_ptr(NULL, &d, (void *)dentry_blk, 2);
f2fs_update_dentry(ino, mode, &d, new_name, name_hash, bit_pos);
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 24bb8213d974..a204f22eba5b 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -316,7 +316,6 @@ int update_inode_page(struct inode *inode)
} else if (err != -ENOENT) {
f2fs_stop_checkpoint(sbi, false);
}
- f2fs_inode_synced(inode);
return 0;
}
ret = update_inode(inode, node_page);
@@ -448,6 +447,7 @@ void handle_failed_inode(struct inode *inode)
* in a panic when flushing dirty inodes in gdirty_list.
*/
update_inode_page(inode);
+ f2fs_inode_synced(inode);
/* don't make bad inode, since it becomes a regular file. */
unlock_new_inode(inode);
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 98f00a3a7f50..a30f323b7b2b 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -148,8 +148,6 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
inode->i_mapping->a_ops = &f2fs_dblock_aops;
ino = inode->i_ino;
- f2fs_balance_fs(sbi, true);
-
f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
if (err)
@@ -163,6 +161,8 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
if (IS_DIRSYNC(dir))
f2fs_sync_fs(sbi->sb, 1);
+
+ f2fs_balance_fs(sbi, true);
return 0;
out:
handle_failed_inode(inode);
@@ -423,8 +423,6 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
inode_nohighmem(inode);
inode->i_mapping->a_ops = &f2fs_dblock_aops;
- f2fs_balance_fs(sbi, true);
-
f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
if (err)
@@ -487,6 +485,8 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
}
kfree(sd);
+
+ f2fs_balance_fs(sbi, true);
return err;
out:
handle_failed_inode(inode);
@@ -508,8 +508,6 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
inode->i_mapping->a_ops = &f2fs_dblock_aops;
mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO);
- f2fs_balance_fs(sbi, true);
-
set_inode_flag(inode, FI_INC_LINK);
f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
@@ -524,6 +522,8 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
if (IS_DIRSYNC(dir))
f2fs_sync_fs(sbi->sb, 1);
+
+ f2fs_balance_fs(sbi, true);
return 0;
out_fail:
@@ -554,8 +554,6 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
init_special_inode(inode, inode->i_mode, rdev);
inode->i_op = &f2fs_special_inode_operations;
- f2fs_balance_fs(sbi, true);
-
f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
if (err)
@@ -569,6 +567,8 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
if (IS_DIRSYNC(dir))
f2fs_sync_fs(sbi->sb, 1);
+
+ f2fs_balance_fs(sbi, true);
return 0;
out:
handle_failed_inode(inode);
@@ -595,8 +595,6 @@ static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
inode->i_mapping->a_ops = &f2fs_dblock_aops;
}
- f2fs_balance_fs(sbi, true);
-
f2fs_lock_op(sbi);
err = acquire_orphan_inode(sbi);
if (err)
@@ -622,6 +620,8 @@ static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
/* link_count was changed by d_tmpfile as well. */
f2fs_unlock_op(sbi);
unlock_new_inode(inode);
+
+ f2fs_balance_fs(sbi, true);
return 0;
release_out:
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 29ef7088c558..56670c5058b7 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -416,7 +416,7 @@ static int __submit_flush_wait(struct block_device *bdev)
struct bio *bio = f2fs_bio_alloc(0);
int ret;
- bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
+ bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH;
bio->bi_bdev = bdev;
ret = submit_bio_wait(bio);
bio_put(bio);
@@ -1788,15 +1788,14 @@ void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
stat_inc_block_count(sbi, curseg);
+ if (!__has_curseg_space(sbi, type))
+ sit_i->s_ops->allocate_segment(sbi, type, false);
/*
- * SIT information should be updated before segment allocation,
- * since SSR needs latest valid block information.
+ * SIT information should be updated after segment allocation,
+ * since we need to keep dirty segments precisely under SSR.
*/
refresh_sit_entry(sbi, old_blkaddr, *new_blkaddr);
- if (!__has_curseg_space(sbi, type))
- sit_i->s_ops->allocate_segment(sbi, type, false);
-
mutex_unlock(&sit_i->sentry_lock);
if (page && IS_NODESEG(type))
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 858aef564a58..5ca78308d5ec 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1307,7 +1307,7 @@ static int __f2fs_commit_super(struct buffer_head *bh,
unlock_buffer(bh);
/* it's rare case, we can do fua all the time */
- return __sync_dirty_buffer(bh, REQ_PREFLUSH | REQ_FUA);
+ return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
}
static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
diff --git a/fs/iomap.c b/fs/iomap.c
index 141c3cd55a8b..1c25ae30500e 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -887,16 +887,14 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
flags |= IOMAP_WRITE;
}
- if (mapping->nrpages) {
- ret = filemap_write_and_wait_range(mapping, start, end);
- if (ret)
- goto out_free_dio;
+ ret = filemap_write_and_wait_range(mapping, start, end);
+ if (ret)
+ goto out_free_dio;
- ret = invalidate_inode_pages2_range(mapping,
- start >> PAGE_SHIFT, end >> PAGE_SHIFT);
- WARN_ON_ONCE(ret);
- ret = 0;
- }
+ ret = invalidate_inode_pages2_range(mapping,
+ start >> PAGE_SHIFT, end >> PAGE_SHIFT);
+ WARN_ON_ONCE(ret);
+ ret = 0;
inode_dio_begin(inode);
@@ -951,7 +949,7 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
* one is a pretty crazy thing to do, so we don't support it 100%. If
* this invalidation fails, tough, the write still worked...
*/
- if (iov_iter_rw(iter) == WRITE && mapping->nrpages) {
+ if (iov_iter_rw(iter) == WRITE) {
int err = invalidate_inode_pages2_range(mapping,
start >> PAGE_SHIFT, end >> PAGE_SHIFT);
WARN_ON_ONCE(err);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 5adc2fb62b0f..e768126f6a72 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1348,7 +1348,7 @@ static int jbd2_write_superblock(journal_t *journal, int write_flags)
jbd2_superblock_csum_set(journal, sb);
get_bh(bh);
bh->b_end_io = end_buffer_write_sync;
- ret = submit_bh(REQ_OP_WRITE, write_flags, bh);
+ ret = submit_bh(REQ_OP_WRITE, write_flags | REQ_SYNC, bh);
wait_on_buffer(bh);
if (buffer_write_io_error(bh)) {
clear_buffer_write_io_error(bh);
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index a304bf34b212..5ebe19353da6 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -218,8 +218,7 @@ int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
if (ret)
goto out;
- if ((iattr->ia_valid & ATTR_SIZE) &&
- iattr->ia_size != i_size_read(inode)) {
+ if (iattr->ia_valid & ATTR_SIZE) {
ret = orangefs_setattr_size(inode, iattr);
if (ret)
goto out;
diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c
index a290ff6ec756..7c315938e9c2 100644
--- a/fs/orangefs/namei.c
+++ b/fs/orangefs/namei.c
@@ -193,8 +193,6 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
goto out;
}
- ORANGEFS_I(inode)->getattr_time = jiffies - 1;
-
gossip_debug(GOSSIP_NAME_DEBUG,
"%s:%s:%d "
"Found good inode [%lu] with count [%d]\n",
diff --git a/fs/orangefs/xattr.c b/fs/orangefs/xattr.c
index 74a81b1daaac..237c9c04dc3b 100644
--- a/fs/orangefs/xattr.c
+++ b/fs/orangefs/xattr.c
@@ -76,11 +76,8 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
- if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN) {
- gossip_err("Invalid key length (%d)\n",
- (int)strlen(name));
+ if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
return -EINVAL;
- }
fsuid = from_kuid(&init_user_ns, current_fsuid());
fsgid = from_kgid(&init_user_ns, current_fsgid());
@@ -172,6 +169,9 @@ static int orangefs_inode_removexattr(struct inode *inode, const char *name,
struct orangefs_kernel_op_s *new_op = NULL;
int ret = -ENOMEM;
+ if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
+ return -EINVAL;
+
down_write(&orangefs_inode->xattr_sem);
new_op = op_alloc(ORANGEFS_VFS_OP_REMOVEXATTR);
if (!new_op)
@@ -231,23 +231,13 @@ int orangefs_inode_setxattr(struct inode *inode, const char *name,
"%s: name %s, buffer_size %zd\n",
__func__, name, size);
- if (size >= ORANGEFS_MAX_XATTR_VALUELEN ||
- flags < 0) {
- gossip_err("orangefs_inode_setxattr: bogus values of size(%d), flags(%d)\n",
- (int)size,
- flags);
+ if (size > ORANGEFS_MAX_XATTR_VALUELEN)
+ return -EINVAL;
+ if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
return -EINVAL;
- }
internal_flag = convert_to_internal_xattr_flags(flags);
- if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN) {
- gossip_err
- ("orangefs_inode_setxattr: bogus key size (%d)\n",
- (int)(strlen(name)));
- return -EINVAL;
- }
-
/* This is equivalent to a removexattr */
if (size == 0 && value == NULL) {
gossip_debug(GOSSIP_XATTR_DEBUG,
@@ -358,7 +348,7 @@ ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size)
returned_count = new_op->downcall.resp.listxattr.returned_count;
if (returned_count < 0 ||
- returned_count >= ORANGEFS_MAX_XATTR_LISTLEN) {
+ returned_count > ORANGEFS_MAX_XATTR_LISTLEN) {
gossip_err("%s: impossible value for returned_count:%d:\n",
__func__,
returned_count);
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 6515796460df..bfabc65fdc74 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -210,7 +210,7 @@ static int ovl_create_upper(struct dentry *dentry, struct inode *inode,
if (err)
goto out_dput;
- if (ovl_type_merge(dentry->d_parent)) {
+ if (ovl_type_merge(dentry->d_parent) && d_is_dir(newdentry)) {
/* Setting opaque here is just an optimization, allow to fail */
ovl_set_opaque(dentry, newdentry);
}
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index efab7b64925b..b81ce8ddf14a 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -709,6 +709,7 @@ int pstore_register(struct pstore_info *psi)
if (psi->flags & PSTORE_FLAGS_PMSG)
pstore_register_pmsg();
+ /* Start watching for new records, if desired. */
if (pstore_update_ms >= 0) {
pstore_timer.expires = jiffies +
msecs_to_jiffies(pstore_update_ms);
@@ -731,6 +732,11 @@ EXPORT_SYMBOL_GPL(pstore_register);
void pstore_unregister(struct pstore_info *psi)
{
+ /* Stop timer and make sure all work has finished. */
+ pstore_update_ms = -1;
+ del_timer_sync(&pstore_timer);
+ flush_work(&pstore_work);
+
if (psi->flags & PSTORE_FLAGS_PMSG)
pstore_unregister_pmsg();
if (psi->flags & PSTORE_FLAGS_FTRACE)
@@ -830,7 +836,9 @@ static void pstore_timefunc(unsigned long dummy)
schedule_work(&pstore_work);
}
- mod_timer(&pstore_timer, jiffies + msecs_to_jiffies(pstore_update_ms));
+ if (pstore_update_ms >= 0)
+ mod_timer(&pstore_timer,
+ jiffies + msecs_to_jiffies(pstore_update_ms));
}
module_param(backend, charp, 0444);
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index bc927e30bdcc..e11672aa4575 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -532,7 +532,7 @@ struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
}
/* Initialize general buffer state. */
- prz->buffer_lock = __RAW_SPIN_LOCK_UNLOCKED(buffer_lock);
+ raw_spin_lock_init(&prz->buffer_lock);
prz->flags = flags;
ret = persistent_ram_buffer_map(start, size, prz, memtype);
diff --git a/fs/xattr.c b/fs/xattr.c
index 7e3317cf4045..94f49a082dd2 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -530,7 +530,7 @@ getxattr(struct dentry *d, const char __user *name, void __user *value,
size = XATTR_SIZE_MAX;
kvalue = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
if (!kvalue) {
- kvalue = vmalloc(size);
+ kvalue = vzalloc(size);
if (!kvalue)
return -ENOMEM;
}
diff --git a/include/linux/dax.h b/include/linux/dax.h
index d8a3dc042e1c..f8e1833f81f6 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -41,7 +41,6 @@ ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter,
int dax_iomap_fault(struct vm_fault *vmf, enum page_entry_size pe_size,
const struct iomap_ops *ops);
int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index);
-int dax_invalidate_mapping_entry(struct address_space *mapping, pgoff_t index);
int dax_invalidate_mapping_entry_sync(struct address_space *mapping,
pgoff_t index);
void dax_wake_mapping_entry_waiter(struct address_space *mapping,
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index d0250744507a..333af5a41c78 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -641,18 +641,18 @@ int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
unsigned long len);
int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
-int kvm_vcpu_read_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc,
- void *data, unsigned long len);
+int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
+ void *data, unsigned long len);
int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
int offset, int len);
int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
unsigned long len);
-int kvm_vcpu_write_guest_cached(struct kvm_vcpu *v, struct gfn_to_hva_cache *ghc,
- void *data, unsigned long len);
-int kvm_vcpu_write_guest_offset_cached(struct kvm_vcpu *v, struct gfn_to_hva_cache *ghc,
- void *data, int offset, unsigned long len);
-int kvm_vcpu_gfn_to_hva_cache_init(struct kvm_vcpu *v, struct gfn_to_hva_cache *ghc,
- gpa_t gpa, unsigned long len);
+int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
+ void *data, unsigned long len);
+int kvm_write_guest_offset_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
+ void *data, int offset, unsigned long len);
+int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
+ gpa_t gpa, unsigned long len);
int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index bb7250c45cb8..e650f6f7d0bf 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -56,6 +56,9 @@ enum mem_cgroup_stat_index {
MEMCG_SLAB_RECLAIMABLE,
MEMCG_SLAB_UNRECLAIMABLE,
MEMCG_SOCK,
+ MEMCG_WORKINGSET_REFAULT,
+ MEMCG_WORKINGSET_ACTIVATE,
+ MEMCG_WORKINGSET_NODERECLAIM,
MEMCG_NR_STAT,
};
@@ -494,6 +497,40 @@ extern int do_swap_account;
void lock_page_memcg(struct page *page);
void unlock_page_memcg(struct page *page);
+static inline unsigned long mem_cgroup_read_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx)
+{
+ long val = 0;
+ int cpu;
+
+ for_each_possible_cpu(cpu)
+ val += per_cpu(memcg->stat->count[idx], cpu);
+
+ if (val < 0)
+ val = 0;
+
+ return val;
+}
+
+static inline void mem_cgroup_update_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx, int val)
+{
+ if (!mem_cgroup_disabled())
+ this_cpu_add(memcg->stat->count[idx], val);
+}
+
+static inline void mem_cgroup_inc_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx)
+{
+ mem_cgroup_update_stat(memcg, idx, 1);
+}
+
+static inline void mem_cgroup_dec_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx)
+{
+ mem_cgroup_update_stat(memcg, idx, -1);
+}
+
/**
* mem_cgroup_update_page_stat - update page state statistics
* @page: the page
@@ -508,14 +545,14 @@ void unlock_page_memcg(struct page *page);
* if (TestClearPageState(page))
* mem_cgroup_update_page_stat(page, state, -1);
* unlock_page(page) or unlock_page_memcg(page)
+ *
+ * Kernel pages are an exception to this, since they'll never move.
*/
static inline void mem_cgroup_update_page_stat(struct page *page,
enum mem_cgroup_stat_index idx, int val)
{
- VM_BUG_ON(!(rcu_read_lock_held() || PageLocked(page)));
-
if (page->mem_cgroup)
- this_cpu_add(page->mem_cgroup->stat->count[idx], val);
+ mem_cgroup_update_stat(page->mem_cgroup, idx, val);
}
static inline void mem_cgroup_inc_page_stat(struct page *page,
@@ -740,6 +777,27 @@ static inline bool mem_cgroup_oom_synchronize(bool wait)
return false;
}
+static inline unsigned long mem_cgroup_read_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx)
+{
+ return 0;
+}
+
+static inline void mem_cgroup_update_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx, int val)
+{
+}
+
+static inline void mem_cgroup_inc_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx)
+{
+}
+
+static inline void mem_cgroup_dec_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx)
+{
+}
+
static inline void mem_cgroup_update_page_stat(struct page *page,
enum mem_cgroup_stat_index idx,
int nr)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 8e02b3750fe0..d45172b559d8 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -226,6 +226,8 @@ struct lruvec {
struct zone_reclaim_stat reclaim_stat;
/* Evictions & activations on the inactive file list */
atomic_long_t inactive_age;
+ /* Refaults at the time of last reclaim cycle */
+ unsigned long refaults;
#ifdef CONFIG_MEMCG
struct pglist_data *pgdat;
#endif
diff --git a/init/initramfs.c b/init/initramfs.c
index 981f286c1d16..8daf7ac6c7e2 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -608,9 +608,11 @@ static void __init clean_rootfs(void)
static int __init populate_rootfs(void)
{
+ /* Load the built in initramfs */
char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size);
if (err)
panic("%s", err); /* Failed to decompress INTERNAL initramfs */
+ /* If available load the bootloader supplied initrd */
if (initrd_start) {
#ifdef CONFIG_BLK_DEV_RAM
int fd;
@@ -640,6 +642,7 @@ static int __init populate_rootfs(void)
free_initrd();
}
done:
+ /* empty statement */;
#else
printk(KERN_INFO "Unpacking initramfs...\n");
err = unpack_to_rootfs((char *)initrd_start,
@@ -648,13 +651,14 @@ static int __init populate_rootfs(void)
printk(KERN_EMERG "Initramfs unpacking failed: %s\n", err);
free_initrd();
#endif
- flush_delayed_fput();
- /*
- * Try loading default modules from initramfs. This gives
- * us a chance to load before device_initcalls.
- */
- load_default_modules();
}
+ flush_delayed_fput();
+ /*
+ * Try loading default modules from initramfs. This gives
+ * us a chance to load before device_initcalls.
+ */
+ load_default_modules();
+
return 0;
}
rootfs_initcall(populate_rootfs);
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 687f5e0194ef..b507f1889a72 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -438,6 +438,11 @@ struct cgroup_subsys_state *cgroup_get_e_css(struct cgroup *cgrp,
static void cgroup_get(struct cgroup *cgrp)
{
+ css_get(&cgrp->self);
+}
+
+static void cgroup_get_live(struct cgroup *cgrp)
+{
WARN_ON_ONCE(cgroup_is_dead(cgrp));
css_get(&cgrp->self);
}
@@ -932,7 +937,7 @@ static void link_css_set(struct list_head *tmp_links, struct css_set *cset,
list_add_tail(&link->cgrp_link, &cset->cgrp_links);
if (cgroup_parent(cgrp))
- cgroup_get(cgrp);
+ cgroup_get_live(cgrp);
}
/**
@@ -1802,7 +1807,7 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
return ERR_PTR(-EINVAL);
}
cgrp_dfl_visible = true;
- cgroup_get(&cgrp_dfl_root.cgrp);
+ cgroup_get_live(&cgrp_dfl_root.cgrp);
dentry = cgroup_do_mount(&cgroup2_fs_type, flags, &cgrp_dfl_root,
CGROUP2_SUPER_MAGIC, ns);
@@ -2576,7 +2581,7 @@ void cgroup_lock_and_drain_offline(struct cgroup *cgrp)
if (!css || !percpu_ref_is_dying(&css->refcnt))
continue;
- cgroup_get(dsct);
+ cgroup_get_live(dsct);
prepare_to_wait(&dsct->offline_waitq, &wait,
TASK_UNINTERRUPTIBLE);
@@ -3947,7 +3952,7 @@ static void init_and_link_css(struct cgroup_subsys_state *css,
{
lockdep_assert_held(&cgroup_mutex);
- cgroup_get(cgrp);
+ cgroup_get_live(cgrp);
memset(css, 0, sizeof(*css));
css->cgroup = cgrp;
@@ -4123,7 +4128,7 @@ static struct cgroup *cgroup_create(struct cgroup *parent)
/* allocation complete, commit to creation */
list_add_tail_rcu(&cgrp->self.sibling, &cgroup_parent(cgrp)->self.children);
atomic_inc(&root->nr_cgrps);
- cgroup_get(parent);
+ cgroup_get_live(parent);
/*
* @cgrp is now fully operational. If something fails after this
@@ -4947,7 +4952,7 @@ struct cgroup *cgroup_get_from_path(const char *path)
if (kn) {
if (kernfs_type(kn) == KERNFS_DIR) {
cgrp = kn->priv;
- cgroup_get(cgrp);
+ cgroup_get_live(cgrp);
} else {
cgrp = ERR_PTR(-ENOTDIR);
}
@@ -5027,6 +5032,11 @@ void cgroup_sk_alloc(struct sock_cgroup_data *skcd)
/* Socket clone path */
if (skcd->val) {
+ /*
+ * We might be cloning a socket which is left in an empty
+ * cgroup and the cgroup might have already been rmdir'd.
+ * Don't use cgroup_get_live().
+ */
cgroup_get(sock_cgroup_ptr(skcd));
return;
}
diff --git a/kernel/padata.c b/kernel/padata.c
index 3202aa17492c..f1aef1639204 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -354,7 +354,7 @@ static int padata_setup_cpumasks(struct parallel_data *pd,
cpumask_and(pd->cpumask.pcpu, pcpumask, cpu_online_mask);
if (!alloc_cpumask_var(&pd->cpumask.cbcpu, GFP_KERNEL)) {
- free_cpumask_var(pd->cpumask.cbcpu);
+ free_cpumask_var(pd->cpumask.pcpu);
return -ENOMEM;
}
diff --git a/mm/filemap.c b/mm/filemap.c
index 1694623a6289..157c047b180a 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2719,18 +2719,16 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
* about to write. We do this *before* the write so that we can return
* without clobbering -EIOCBQUEUED from ->direct_IO().
*/
- if (mapping->nrpages) {
- written = invalidate_inode_pages2_range(mapping,
+ written = invalidate_inode_pages2_range(mapping,
pos >> PAGE_SHIFT, end);
- /*
- * If a page can not be invalidated, return 0 to fall back
- * to buffered write.
- */
- if (written) {
- if (written == -EBUSY)
- return 0;
- goto out;
- }
+ /*
+ * If a page can not be invalidated, return 0 to fall back
+ * to buffered write.
+ */
+ if (written) {
+ if (written == -EBUSY)
+ return 0;
+ goto out;
}
data = *from;
@@ -2744,10 +2742,8 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
* so we don't support it 100%. If this invalidation
* fails, tough, the write still worked...
*/
- if (mapping->nrpages) {
- invalidate_inode_pages2_range(mapping,
- pos >> PAGE_SHIFT, end);
- }
+ invalidate_inode_pages2_range(mapping,
+ pos >> PAGE_SHIFT, end);
if (written > 0) {
pos += written;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2bd7541d7c11..a4b8fc7aaf80 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -568,23 +568,6 @@ mem_cgroup_largest_soft_limit_node(struct mem_cgroup_tree_per_node *mctz)
* common workload, threshold and synchronization as vmstat[] should be
* implemented.
*/
-static unsigned long
-mem_cgroup_read_stat(struct mem_cgroup *memcg, enum mem_cgroup_stat_index idx)
-{
- long val = 0;
- int cpu;
-
- /* Per-cpu values can be negative, use a signed accumulator */
- for_each_possible_cpu(cpu)
- val += per_cpu(memcg->stat->count[idx], cpu);
- /*
- * Summing races with updates, so val may be negative. Avoid exposing
- * transient negative values.
- */
- if (val < 0)
- val = 0;
- return val;
-}
static unsigned long mem_cgroup_read_events(struct mem_cgroup *memcg,
enum mem_cgroup_events_index idx)
@@ -5237,6 +5220,13 @@ static int memory_stat_show(struct seq_file *m, void *v)
seq_printf(m, "pgmajfault %lu\n",
events[MEM_CGROUP_EVENTS_PGMAJFAULT]);
+ seq_printf(m, "workingset_refault %lu\n",
+ stat[MEMCG_WORKINGSET_REFAULT]);
+ seq_printf(m, "workingset_activate %lu\n",
+ stat[MEMCG_WORKINGSET_ACTIVATE]);
+ seq_printf(m, "workingset_nodereclaim %lu\n",
+ stat[MEMCG_WORKINGSET_NODERECLAIM]);
+
return 0;
}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 07efbc3a8656..c5fee5a0316d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3245,6 +3245,7 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
enum compact_priority prio, enum compact_result *compact_result)
{
struct page *page;
+ unsigned int noreclaim_flag = current->flags & PF_MEMALLOC;
if (!order)
return NULL;
@@ -3252,7 +3253,7 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
current->flags |= PF_MEMALLOC;
*compact_result = try_to_compact_pages(gfp_mask, order, alloc_flags, ac,
prio);
- current->flags &= ~PF_MEMALLOC;
+ current->flags = (current->flags & ~PF_MEMALLOC) | noreclaim_flag;
if (*compact_result <= COMPACT_INACTIVE)
return NULL;
diff --git a/mm/truncate.c b/mm/truncate.c
index 6263affdef88..5f1c4b65239e 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -67,17 +67,14 @@ static void truncate_exceptional_entry(struct address_space *mapping,
/*
* Invalidate exceptional entry if easily possible. This handles exceptional
- * entries for invalidate_inode_pages() so for DAX it evicts only unlocked and
- * clean entries.
+ * entries for invalidate_inode_pages().
*/
static int invalidate_exceptional_entry(struct address_space *mapping,
pgoff_t index, void *entry)
{
- /* Handled by shmem itself */
- if (shmem_mapping(mapping))
+ /* Handled by shmem itself, or for DAX we do nothing. */
+ if (shmem_mapping(mapping) || dax_mapping(mapping))
return 1;
- if (dax_mapping(mapping))
- return dax_invalidate_mapping_entry(mapping, index);
clear_shadow_entry(mapping, index, entry);
return 1;
}
@@ -686,6 +683,17 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
cond_resched();
index++;
}
+ /*
+ * For DAX we invalidate page tables after invalidating radix tree. We
+ * could invalidate page tables while invalidating each entry however
+ * that would be expensive. And doing range unmapping before doesn't
+ * work as we have no cheap way to find whether radix tree entry didn't
+ * get remapped later.
+ */
+ if (dax_mapping(mapping)) {
+ unmap_mapping_range(mapping, (loff_t)start << PAGE_SHIFT,
+ (loff_t)(end - start + 1) << PAGE_SHIFT, 0);
+ }
cleancache_invalidate_inode(mapping);
return ret;
}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index bc8031ef994d..1345d5fba4a2 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2033,6 +2033,8 @@ static void shrink_active_list(unsigned long nr_to_scan,
* Both inactive lists should also be large enough that each inactive
* page has a chance to be referenced again before it is reclaimed.
*
+ * If that fails and refaulting is observed, the inactive list grows.
+ *
* The inactive_ratio is the target ratio of ACTIVE to INACTIVE pages
* on this LRU, maintained by the pageout code. A zone->inactive_ratio
* of 3 means 3:1 or 25% of the pages are kept on the inactive list.
@@ -2049,12 +2051,15 @@ static void shrink_active_list(unsigned long nr_to_scan,
* 10TB 320 32GB
*/
static bool inactive_list_is_low(struct lruvec *lruvec, bool file,
- struct scan_control *sc, bool trace)
+ struct mem_cgroup *memcg,
+ struct scan_control *sc, bool actual_reclaim)
{
- unsigned long inactive_ratio;
- unsigned long inactive, active;
- enum lru_list inactive_lru = file * LRU_FILE;
enum lru_list active_lru = file * LRU_FILE + LRU_ACTIVE;
+ struct pglist_data *pgdat = lruvec_pgdat(lruvec);
+ enum lru_list inactive_lru = file * LRU_FILE;
+ unsigned long inactive, active;
+ unsigned long inactive_ratio;
+ unsigned long refaults;
unsigned long gb;
/*
@@ -2067,27 +2072,43 @@ static bool inactive_list_is_low(struct lruvec *lruvec, bool file,
inactive = lruvec_lru_size(lruvec, inactive_lru, sc->reclaim_idx);
active = lruvec_lru_size(lruvec, active_lru, sc->reclaim_idx);
- gb = (inactive + active) >> (30 - PAGE_SHIFT);
- if (gb)
- inactive_ratio = int_sqrt(10 * gb);
+ if (memcg)
+ refaults = mem_cgroup_read_stat(memcg,
+ MEMCG_WORKINGSET_ACTIVATE);
else
- inactive_ratio = 1;
+ refaults = node_page_state(pgdat, WORKINGSET_ACTIVATE);
+
+ /*
+ * When refaults are being observed, it means a new workingset
+ * is being established. Disable active list protection to get
+ * rid of the stale workingset quickly.
+ */
+ if (file && actual_reclaim && lruvec->refaults != refaults) {
+ inactive_ratio = 0;
+ } else {
+ gb = (inactive + active) >> (30 - PAGE_SHIFT);
+ if (gb)
+ inactive_ratio = int_sqrt(10 * gb);
+ else
+ inactive_ratio = 1;
+ }
- if (trace)
- trace_mm_vmscan_inactive_list_is_low(lruvec_pgdat(lruvec)->node_id,
- sc->reclaim_idx,
- lruvec_lru_size(lruvec, inactive_lru, MAX_NR_ZONES), inactive,
- lruvec_lru_size(lruvec, active_lru, MAX_NR_ZONES), active,
- inactive_ratio, file);
+ if (actual_reclaim)
+ trace_mm_vmscan_inactive_list_is_low(pgdat->node_id, sc->reclaim_idx,
+ lruvec_lru_size(lruvec, inactive_lru, MAX_NR_ZONES), inactive,
+ lruvec_lru_size(lruvec, active_lru, MAX_NR_ZONES), active,
+ inactive_ratio, file);
return inactive * inactive_ratio < active;
}
static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_scan,
- struct lruvec *lruvec, struct scan_control *sc)
+ struct lruvec *lruvec, struct mem_cgroup *memcg,
+ struct scan_control *sc)
{
if (is_active_lru(lru)) {
- if (inactive_list_is_low(lruvec, is_file_lru(lru), sc, true))
+ if (inactive_list_is_low(lruvec, is_file_lru(lru),
+ memcg, sc, true))
shrink_active_list(nr_to_scan, lruvec, sc, lru);
return 0;
}
@@ -2218,7 +2239,7 @@ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg,
* lruvec even if it has plenty of old anonymous pages unless the
* system is under heavy pressure.
*/
- if (!inactive_list_is_low(lruvec, true, sc, false) &&
+ if (!inactive_list_is_low(lruvec, true, memcg, sc, false) &&
lruvec_lru_size(lruvec, LRU_INACTIVE_FILE, sc->reclaim_idx) >> sc->priority) {
scan_balance = SCAN_FILE;
goto out;
@@ -2376,7 +2397,7 @@ static void shrink_node_memcg(struct pglist_data *pgdat, struct mem_cgroup *memc
nr[lru] -= nr_to_scan;
nr_reclaimed += shrink_list(lru, nr_to_scan,
- lruvec, sc);
+ lruvec, memcg, sc);
}
}
@@ -2443,7 +2464,7 @@ static void shrink_node_memcg(struct pglist_data *pgdat, struct mem_cgroup *memc
* Even if we did not try to evict anon pages at all, we want to
* rebalance the anon lru active/inactive ratio.
*/
- if (inactive_list_is_low(lruvec, false, sc, true))
+ if (inactive_list_is_low(lruvec, false, memcg, sc, true))
shrink_active_list(SWAP_CLUSTER_MAX, lruvec,
sc, LRU_ACTIVE_ANON);
}
@@ -2752,6 +2773,26 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc)
sc->gfp_mask = orig_mask;
}
+static void snapshot_refaults(struct mem_cgroup *root_memcg, pg_data_t *pgdat)
+{
+ struct mem_cgroup *memcg;
+
+ memcg = mem_cgroup_iter(root_memcg, NULL, NULL);
+ do {
+ unsigned long refaults;
+ struct lruvec *lruvec;
+
+ if (memcg)
+ refaults = mem_cgroup_read_stat(memcg,
+ MEMCG_WORKINGSET_ACTIVATE);
+ else
+ refaults = node_page_state(pgdat, WORKINGSET_ACTIVATE);
+
+ lruvec = mem_cgroup_lruvec(pgdat, memcg);
+ lruvec->refaults = refaults;
+ } while ((memcg = mem_cgroup_iter(root_memcg, memcg, NULL)));
+}
+
/*
* This is the main entry point to direct page reclaim.
*
@@ -2772,6 +2813,9 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
struct scan_control *sc)
{
int initial_priority = sc->priority;
+ pg_data_t *last_pgdat;
+ struct zoneref *z;
+ struct zone *zone;
retry:
delayacct_freepages_start();
@@ -2798,6 +2842,15 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
sc->may_writepage = 1;
} while (--sc->priority >= 0);
+ last_pgdat = NULL;
+ for_each_zone_zonelist_nodemask(zone, z, zonelist, sc->reclaim_idx,
+ sc->nodemask) {
+ if (zone->zone_pgdat == last_pgdat)
+ continue;
+ last_pgdat = zone->zone_pgdat;
+ snapshot_refaults(sc->target_mem_cgroup, zone->zone_pgdat);
+ }
+
delayacct_freepages_end();
if (sc->nr_reclaimed)
@@ -3076,7 +3129,7 @@ static void age_active_anon(struct pglist_data *pgdat,
do {
struct lruvec *lruvec = mem_cgroup_lruvec(pgdat, memcg);
- if (inactive_list_is_low(lruvec, false, sc, true))
+ if (inactive_list_is_low(lruvec, false, memcg, sc, true))
shrink_active_list(SWAP_CLUSTER_MAX, lruvec,
sc, LRU_ACTIVE_ANON);
@@ -3311,6 +3364,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int classzone_idx)
} while (sc.priority >= 1);
out:
+ snapshot_refaults(NULL, pgdat);
/*
* Return the order kswapd stopped reclaiming at as
* prepare_kswapd_sleep() takes it into account. If another caller
diff --git a/mm/workingset.c b/mm/workingset.c
index eda05c71fa49..51c6f61d4cea 100644
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -269,7 +269,6 @@ bool workingset_refault(void *shadow)
lruvec = mem_cgroup_lruvec(pgdat, memcg);
refault = atomic_long_read(&lruvec->inactive_age);
active_file = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE, MAX_NR_ZONES);
- rcu_read_unlock();
/*
* The unsigned subtraction here gives an accurate distance
@@ -290,11 +289,15 @@ bool workingset_refault(void *shadow)
refault_distance = (refault - eviction) & EVICTION_MASK;
inc_node_state(pgdat, WORKINGSET_REFAULT);
+ mem_cgroup_inc_stat(memcg, MEMCG_WORKINGSET_REFAULT);
if (refault_distance <= active_file) {
inc_node_state(pgdat, WORKINGSET_ACTIVATE);
+ mem_cgroup_inc_stat(memcg, MEMCG_WORKINGSET_ACTIVATE);
+ rcu_read_unlock();
return true;
}
+ rcu_read_unlock();
return false;
}
@@ -472,6 +475,8 @@ static enum lru_status shadow_lru_isolate(struct list_head *item,
if (WARN_ON_ONCE(node->exceptional))
goto out_invalid;
inc_node_state(page_pgdat(virt_to_page(node)), WORKINGSET_NODERECLAIM);
+ mem_cgroup_inc_page_stat(virt_to_page(node),
+ MEMCG_WORKINGSET_NODERECLAIM);
__radix_tree_delete_node(&mapping->page_tree, node,
workingset_update_node, mapping);
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index f64d6566021f..638bf0e1a2e3 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1680,7 +1680,8 @@ static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg,
if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP;
- if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
+ if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE|
+ MSG_CMSG_COMPAT))
return -EINVAL;
if (len < 4 || len > HCI_MAX_FRAME_SIZE)
diff --git a/net/core/datagram.c b/net/core/datagram.c
index f4947e737f34..d797baa69e43 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -760,7 +760,7 @@ int skb_copy_and_csum_datagram_msg(struct sk_buff *skb,
if (msg_data_left(msg) < chunk) {
if (__skb_checksum_complete(skb))
- goto csum_error;
+ return -EINVAL;
if (skb_copy_datagram_msg(skb, hlen, msg, chunk))
goto fault;
} else {
@@ -768,15 +768,16 @@ int skb_copy_and_csum_datagram_msg(struct sk_buff *skb,
if (skb_copy_and_csum_datagram(skb, hlen, &msg->msg_iter,
chunk, &csum))
goto fault;
- if (csum_fold(csum))
- goto csum_error;
+
+ if (csum_fold(csum)) {
+ iov_iter_revert(&msg->msg_iter, chunk);
+ return -EINVAL;
+ }
+
if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
netdev_rx_csum_fault(skb->dev);
}
return 0;
-csum_error:
- iov_iter_revert(&msg->msg_iter, chunk);
- return -EINVAL;
fault:
return -EFAULT;
}
diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c
new file mode 100644
index 000000000000..745b4b1b8b21
--- /dev/null
+++ b/tools/perf/arch/s390/annotate/instructions.c
@@ -0,0 +1,30 @@
+static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name)
+{
+ struct ins_ops *ops = NULL;
+
+ /* catch all kind of jumps */
+ if (strchr(name, 'j') ||
+ !strncmp(name, "bct", 3) ||
+ !strncmp(name, "br", 2))
+ ops = &jump_ops;
+ /* override call/returns */
+ if (!strcmp(name, "bras") ||
+ !strcmp(name, "brasl") ||
+ !strcmp(name, "basr"))
+ ops = &call_ops;
+ if (!strcmp(name, "br"))
+ ops = &ret_ops;
+
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+static int s390__annotate_init(struct arch *arch)
+{
+ if (!arch->initialized) {
+ arch->initialized = true;
+ arch->associate_instruction_ops = s390__associate_ins_ops;
+ }
+
+ return 0;
+}
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 7aa57225cbf7..83c57a11dc5b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -108,6 +108,7 @@ static int arch__associate_ins_ops(struct arch* arch, const char *name, struct i
#include "arch/arm64/annotate/instructions.c"
#include "arch/x86/annotate/instructions.c"
#include "arch/powerpc/annotate/instructions.c"
+#include "arch/s390/annotate/instructions.c"
static struct arch architectures[] = {
{
@@ -132,6 +133,13 @@ static struct arch architectures[] = {
},
{
.name = "s390",
+ .init = s390__annotate_init,
+ .objdump = {
+ .comment_char = '#',
+ },
+ },
+ {
+ .name = "s390",
.objdump = {
.comment_char = '#',
},
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index c5a6e0b12452..78bd632f144d 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -1826,7 +1826,7 @@ static int addr_filter__resolve_kernel_syms(struct addr_filter *filt)
filt->addr = start;
if (filt->range && !filt->size && !filt->sym_to) {
filt->size = size;
- no_size = !!size;
+ no_size = !size;
}
}
@@ -1840,7 +1840,7 @@ static int addr_filter__resolve_kernel_syms(struct addr_filter *filt)
if (err)
return err;
filt->size = start + size - filt->addr;
- no_size = !!size;
+ no_size = !size;
}
/* The very last symbol in kallsyms does not imply a particular size */
diff --git a/tools/testing/selftests/x86/ldt_gdt.c b/tools/testing/selftests/x86/ldt_gdt.c
index f6121612e769..b9a22f18566a 100644
--- a/tools/testing/selftests/x86/ldt_gdt.c
+++ b/tools/testing/selftests/x86/ldt_gdt.c
@@ -409,6 +409,51 @@ static void *threadproc(void *ctx)
}
}
+#ifdef __i386__
+
+#ifndef SA_RESTORE
+#define SA_RESTORER 0x04000000
+#endif
+
+/*
+ * The UAPI header calls this 'struct sigaction', which conflicts with
+ * glibc. Sigh.
+ */
+struct fake_ksigaction {
+ void *handler; /* the real type is nasty */
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+ unsigned char sigset[8];
+};
+
+static void fix_sa_restorer(int sig)
+{
+ struct fake_ksigaction ksa;
+
+ if (syscall(SYS_rt_sigaction, sig, NULL, &ksa, 8) == 0) {
+ /*
+ * glibc has a nasty bug: it sometimes writes garbage to
+ * sa_restorer. This interacts quite badly with anything
+ * that fiddles with SS because it can trigger legacy
+ * stack switching. Patch it up. See:
+ *
+ * https://sourceware.org/bugzilla/show_bug.cgi?id=21269
+ */
+ if (!(ksa.sa_flags & SA_RESTORER) && ksa.sa_restorer) {
+ ksa.sa_restorer = NULL;
+ if (syscall(SYS_rt_sigaction, sig, &ksa, NULL,
+ sizeof(ksa.sigset)) != 0)
+ err(1, "rt_sigaction");
+ }
+ }
+}
+#else
+static void fix_sa_restorer(int sig)
+{
+ /* 64-bit glibc works fine. */
+}
+#endif
+
static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
int flags)
{
@@ -420,6 +465,7 @@ static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
if (sigaction(sig, &sa, 0))
err(1, "sigaction");
+ fix_sa_restorer(sig);
}
static jmp_buf jmpbuf;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 88257b311cb5..7e80f62f034c 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1973,18 +1973,18 @@ static int __kvm_gfn_to_hva_cache_init(struct kvm_memslots *slots,
return 0;
}
-int kvm_vcpu_gfn_to_hva_cache_init(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc,
+int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
gpa_t gpa, unsigned long len)
{
- struct kvm_memslots *slots = kvm_vcpu_memslots(vcpu);
+ struct kvm_memslots *slots = kvm_memslots(kvm);
return __kvm_gfn_to_hva_cache_init(slots, ghc, gpa, len);
}
-EXPORT_SYMBOL_GPL(kvm_vcpu_gfn_to_hva_cache_init);
+EXPORT_SYMBOL_GPL(kvm_gfn_to_hva_cache_init);
-int kvm_vcpu_write_guest_offset_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc,
- void *data, int offset, unsigned long len)
+int kvm_write_guest_offset_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
+ void *data, int offset, unsigned long len)
{
- struct kvm_memslots *slots = kvm_vcpu_memslots(vcpu);
+ struct kvm_memslots *slots = kvm_memslots(kvm);
int r;
gpa_t gpa = ghc->gpa + offset;
@@ -1994,7 +1994,7 @@ int kvm_vcpu_write_guest_offset_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_
__kvm_gfn_to_hva_cache_init(slots, ghc, ghc->gpa, ghc->len);
if (unlikely(!ghc->memslot))
- return kvm_vcpu_write_guest(vcpu, gpa, data, len);
+ return kvm_write_guest(kvm, gpa, data, len);
if (kvm_is_error_hva(ghc->hva))
return -EFAULT;
@@ -2006,19 +2006,19 @@ int kvm_vcpu_write_guest_offset_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_
return 0;
}
-EXPORT_SYMBOL_GPL(kvm_vcpu_write_guest_offset_cached);
+EXPORT_SYMBOL_GPL(kvm_write_guest_offset_cached);
-int kvm_vcpu_write_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc,
- void *data, unsigned long len)
+int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
+ void *data, unsigned long len)
{
- return kvm_vcpu_write_guest_offset_cached(vcpu, ghc, data, 0, len);
+ return kvm_write_guest_offset_cached(kvm, ghc, data, 0, len);
}
-EXPORT_SYMBOL_GPL(kvm_vcpu_write_guest_cached);
+EXPORT_SYMBOL_GPL(kvm_write_guest_cached);
-int kvm_vcpu_read_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc,
- void *data, unsigned long len)
+int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
+ void *data, unsigned long len)
{
- struct kvm_memslots *slots = kvm_vcpu_memslots(vcpu);
+ struct kvm_memslots *slots = kvm_memslots(kvm);
int r;
BUG_ON(len > ghc->len);
@@ -2027,7 +2027,7 @@ int kvm_vcpu_read_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *g
__kvm_gfn_to_hva_cache_init(slots, ghc, ghc->gpa, ghc->len);
if (unlikely(!ghc->memslot))
- return kvm_vcpu_read_guest(vcpu, ghc->gpa, data, len);
+ return kvm_read_guest(kvm, ghc->gpa, data, len);
if (kvm_is_error_hva(ghc->hva))
return -EFAULT;
@@ -2038,7 +2038,7 @@ int kvm_vcpu_read_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *g
return 0;
}
-EXPORT_SYMBOL_GPL(kvm_vcpu_read_guest_cached);
+EXPORT_SYMBOL_GPL(kvm_read_guest_cached);
int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len)
{
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