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Message-ID: <20090502200427.GB7287@kroah.com>
Date: Sat, 2 May 2009 13:04:27 -0700
From: Greg KH <gregkh@...e.de>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...nel.org
Subject: Re: Linux 2.6.28.10
diff --git a/Makefile b/Makefile
index 17bfe08..f625d8c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 28
-EXTRAVERSION = .9
+EXTRAVERSION = .10
NAME = Erotic Pickled Herring
# *DOCUMENTATION*
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index 6d406c5..9696cc3 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -27,7 +27,7 @@
PPC_LONG "1b,4b,2b,4b\n" \
".previous" \
: "=&r" (oldval), "=&r" (ret) \
- : "b" (uaddr), "i" (-EFAULT), "1" (oparg) \
+ : "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
: "cr0", "memory")
static inline int futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
@@ -47,19 +47,19 @@ static inline int futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
switch (op) {
case FUTEX_OP_SET:
- __futex_atomic_op("", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("mr %1,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ADD:
- __futex_atomic_op("add %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("add %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_OR:
- __futex_atomic_op("or %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("or %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ANDN:
- __futex_atomic_op("andc %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("andc %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_XOR:
- __futex_atomic_op("xor %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("xor %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
default:
ret = -ENOSYS;
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 101ed87..ae1c5b5 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -309,6 +309,25 @@ static inline void prefetchw(const void *x)
#define HAVE_ARCH_PICK_MMAP_LAYOUT
#endif
+#ifdef CONFIG_PPC64
+static inline unsigned long get_clean_sp(struct pt_regs *regs, int is_32)
+{
+ unsigned long sp;
+
+ if (is_32)
+ sp = regs->gpr[1] & 0x0ffffffffUL;
+ else
+ sp = regs->gpr[1];
+
+ return sp;
+}
+#else
+static inline unsigned long get_clean_sp(struct pt_regs *regs, int is_32)
+{
+ return regs->gpr[1];
+}
+#endif
+
#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_PROCESSOR_H */
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index a54405e..00b5078 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -26,12 +26,12 @@ int show_unhandled_signals = 0;
* Allocate space for the signal frame
*/
void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
- size_t frame_size)
+ size_t frame_size, int is_32)
{
unsigned long oldsp, newsp;
/* Default to using normal stack */
- oldsp = regs->gpr[1];
+ oldsp = get_clean_sp(regs, is_32);
/* Check for alt stack */
if ((ka->sa.sa_flags & SA_ONSTACK) &&
diff --git a/arch/powerpc/kernel/signal.h b/arch/powerpc/kernel/signal.h
index b427bf8..95e1b14 100644
--- a/arch/powerpc/kernel/signal.h
+++ b/arch/powerpc/kernel/signal.h
@@ -15,7 +15,7 @@
extern void do_signal(struct pt_regs *regs, unsigned long thread_info_flags);
extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
- size_t frame_size);
+ size_t frame_size, int is_32);
extern void restore_sigmask(sigset_t *set);
extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index b13abf3..d670429 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -836,7 +836,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
/* Set up Signal Frame */
/* Put a Real Time Context onto stack */
- rt_sf = get_sigframe(ka, regs, sizeof(*rt_sf));
+ rt_sf = get_sigframe(ka, regs, sizeof(*rt_sf), 1);
addr = rt_sf;
if (unlikely(rt_sf == NULL))
goto badframe;
@@ -1182,7 +1182,7 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
unsigned long newsp = 0;
/* Set up Signal Frame */
- frame = get_sigframe(ka, regs, sizeof(*frame));
+ frame = get_sigframe(ka, regs, sizeof(*frame), 1);
if (unlikely(frame == NULL))
goto badframe;
sc = (struct sigcontext __user *) &frame->sctx;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index e132891..2fe6fc6 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -402,7 +402,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
unsigned long newsp = 0;
long err = 0;
- frame = get_sigframe(ka, regs, sizeof(*frame));
+ frame = get_sigframe(ka, regs, sizeof(*frame), 0);
if (unlikely(frame == NULL))
goto badframe;
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
index 8c3c25f..a99dbbe 100644
--- a/arch/x86/boot/memory.c
+++ b/arch/x86/boot/memory.c
@@ -27,13 +27,14 @@ static int detect_memory_e820(void)
do {
size = sizeof(struct e820entry);
- /* Important: %edx is clobbered by some BIOSes,
- so it must be either used for the error output
+ /* Important: %edx and %esi are clobbered by some BIOSes,
+ so they must be either used for the error output
or explicitly marked clobbered. */
asm("int $0x15; setc %0"
: "=d" (err), "+b" (next), "=a" (id), "+c" (size),
"=m" (*desc)
- : "D" (desc), "d" (SMAP), "a" (0xe820));
+ : "D" (desc), "d" (SMAP), "a" (0xe820)
+ : "esi");
/* BIOSes which terminate the chain with CF = 1 as opposed
to %ebx = 0 don't always report the SMAP signature on
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 8346be8..64c9c48 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -190,9 +190,11 @@ struct kvm_mmu_page {
u64 *spt;
/* hold the gfn of each spte inside spt */
gfn_t *gfns;
- unsigned long slot_bitmap; /* One bit set per slot which has memory
- * in this shadow page.
- */
+ /*
+ * One bit set per slot which has memory
+ * in this shadow page.
+ */
+ DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS);
int multimapped; /* More than one parent_pte? */
int root_count; /* Currently serving as active root */
bool unsync;
@@ -607,6 +609,8 @@ void kvm_disable_tdp(void);
int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
int complete_pio(struct kvm_vcpu *vcpu);
+struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn);
+
static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
{
struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 4e8d77f..9037cb0 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -45,6 +45,32 @@ u64 mtrr_tom2;
static int mtrr_show;
module_param_named(show, mtrr_show, bool, 0);
+/**
+ * BIOS is expected to clear MtrrFixDramModEn bit, see for example
+ * "BIOS and Kernel Developer's Guide for the AMD Athlon 64 and AMD
+ * Opteron Processors" (26094 Rev. 3.30 February 2006), section
+ * "13.2.1.2 SYSCFG Register": "The MtrrFixDramModEn bit should be set
+ * to 1 during BIOS initalization of the fixed MTRRs, then cleared to
+ * 0 for operation."
+ */
+static inline void k8_check_syscfg_dram_mod_en(void)
+{
+ u32 lo, hi;
+
+ if (!((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
+ (boot_cpu_data.x86 >= 0x0f)))
+ return;
+
+ rdmsr(MSR_K8_SYSCFG, lo, hi);
+ if (lo & K8_MTRRFIXRANGE_DRAM_MODIFY) {
+ printk(KERN_ERR FW_WARN "MTRR: CPU %u: SYSCFG[MtrrFixDramModEn]"
+ " not cleared by BIOS, clearing this bit\n",
+ smp_processor_id());
+ lo &= ~K8_MTRRFIXRANGE_DRAM_MODIFY;
+ mtrr_wrmsr(MSR_K8_SYSCFG, lo, hi);
+ }
+}
+
/*
* Returns the effective MTRR type for the region
* Error returns:
@@ -178,6 +204,8 @@ get_fixed_ranges(mtrr_type * frs)
unsigned int *p = (unsigned int *) frs;
int i;
+ k8_check_syscfg_dram_mod_en();
+
rdmsr(MTRRfix64K_00000_MSR, p[0], p[1]);
for (i = 0; i < 2; i++)
@@ -312,27 +340,10 @@ void mtrr_wrmsr(unsigned msr, unsigned a, unsigned b)
}
/**
- * Enable and allow read/write of extended fixed-range MTRR bits on K8 CPUs
- * see AMD publication no. 24593, chapter 3.2.1 for more information
- */
-static inline void k8_enable_fixed_iorrs(void)
-{
- unsigned lo, hi;
-
- rdmsr(MSR_K8_SYSCFG, lo, hi);
- mtrr_wrmsr(MSR_K8_SYSCFG, lo
- | K8_MTRRFIXRANGE_DRAM_ENABLE
- | K8_MTRRFIXRANGE_DRAM_MODIFY, hi);
-}
-
-/**
* set_fixed_range - checks & updates a fixed-range MTRR if it differs from the value it should have
* @msr: MSR address of the MTTR which should be checked and updated
* @changed: pointer which indicates whether the MTRR needed to be changed
* @msrwords: pointer to the MSR values which the MSR should have
- *
- * If K8 extentions are wanted, update the K8 SYSCFG MSR also.
- * See AMD publication no. 24593, chapter 7.8.1, page 233 for more information.
*/
static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
{
@@ -341,10 +352,6 @@ static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
rdmsr(msr, lo, hi);
if (lo != msrwords[0] || hi != msrwords[1]) {
- if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
- (boot_cpu_data.x86 >= 0x0f && boot_cpu_data.x86 <= 0x11) &&
- ((msrwords[0] | msrwords[1]) & K8_MTRR_RDMEM_WRMEM_MASK))
- k8_enable_fixed_iorrs();
mtrr_wrmsr(msr, msrwords[0], msrwords[1]);
*changed = true;
}
@@ -423,6 +430,8 @@ static int set_fixed_ranges(mtrr_type * frs)
bool changed = false;
int block=-1, range;
+ k8_check_syscfg_dram_mod_en();
+
while (fixed_range_blocks[++block].ranges)
for (range=0; range < fixed_range_blocks[block].ranges; range++)
set_fixed_range(fixed_range_blocks[block].base_msr + range,
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 59ebd37..3a10414 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -207,7 +207,7 @@ static int __pit_timer_fn(struct kvm_kpit_state *ps)
hrtimer_add_expires_ns(&pt->timer, pt->period);
pt->scheduled = hrtimer_get_expires_ns(&pt->timer);
if (pt->period)
- ps->channels[0].count_load_time = hrtimer_get_expires(&pt->timer);
+ ps->channels[0].count_load_time = ktime_get();
return (pt->period == 0 ? 0 : 1);
}
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index c019b8e..cf17ed5 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -87,13 +87,6 @@ void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs);
-void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
-{
- kvm_apic_timer_intr_post(vcpu, vec);
- /* TODO: PIT, RTC etc. */
-}
-EXPORT_SYMBOL_GPL(kvm_timer_intr_post);
-
void __kvm_migrate_timers(struct kvm_vcpu *vcpu)
{
__kvm_migrate_apic_timer(vcpu);
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index f17c8f5..b54004e 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -84,7 +84,6 @@ static inline int irqchip_in_kernel(struct kvm *kvm)
void kvm_pic_reset(struct kvm_kpic_state *s);
-void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 0fc3cab..e8dd079 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -35,6 +35,12 @@
#include "kvm_cache_regs.h"
#include "irq.h"
+#ifndef CONFIG_X86_64
+#define mod_64(x, y) ((x) - (y) * div64_u64(x, y))
+#else
+#define mod_64(x, y) ((x) % (y))
+#endif
+
#define PRId64 "d"
#define PRIx64 "llx"
#define PRIu64 "u"
@@ -497,52 +503,22 @@ static void apic_send_ipi(struct kvm_lapic *apic)
static u32 apic_get_tmcct(struct kvm_lapic *apic)
{
- u64 counter_passed;
- ktime_t passed, now;
+ ktime_t remaining;
+ s64 ns;
u32 tmcct;
ASSERT(apic != NULL);
- now = apic->timer.dev.base->get_time();
- tmcct = apic_get_reg(apic, APIC_TMICT);
-
/* if initial count is 0, current count should also be 0 */
- if (tmcct == 0)
+ if (apic_get_reg(apic, APIC_TMICT) == 0)
return 0;
- if (unlikely(ktime_to_ns(now) <=
- ktime_to_ns(apic->timer.last_update))) {
- /* Wrap around */
- passed = ktime_add(( {
- (ktime_t) {
- .tv64 = KTIME_MAX -
- (apic->timer.last_update).tv64}; }
- ), now);
- apic_debug("time elapsed\n");
- } else
- passed = ktime_sub(now, apic->timer.last_update);
-
- counter_passed = div64_u64(ktime_to_ns(passed),
- (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
-
- if (counter_passed > tmcct) {
- if (unlikely(!apic_lvtt_period(apic))) {
- /* one-shot timers stick at 0 until reset */
- tmcct = 0;
- } else {
- /*
- * periodic timers reset to APIC_TMICT when they
- * hit 0. The while loop simulates this happening N
- * times. (counter_passed %= tmcct) would also work,
- * but might be slower or not work on 32-bit??
- */
- while (counter_passed > tmcct)
- counter_passed -= tmcct;
- tmcct -= counter_passed;
- }
- } else {
- tmcct -= counter_passed;
- }
+ remaining = hrtimer_expires_remaining(&apic->timer.dev);
+ if (ktime_to_ns(remaining) < 0)
+ remaining = ktime_set(0, 0);
+
+ ns = mod_64(ktime_to_ns(remaining), apic->timer.period);
+ tmcct = div64_u64(ns, (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
return tmcct;
}
@@ -639,8 +615,6 @@ static void start_apic_timer(struct kvm_lapic *apic)
{
ktime_t now = apic->timer.dev.base->get_time();
- apic->timer.last_update = now;
-
apic->timer.period = apic_get_reg(apic, APIC_TMICT) *
APIC_BUS_CYCLE_NS * apic->timer.divide_count;
atomic_set(&apic->timer.pending, 0);
@@ -1068,16 +1042,6 @@ void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu)
}
}
-void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec)
-{
- struct kvm_lapic *apic = vcpu->arch.apic;
-
- if (apic && apic_lvt_vector(apic, APIC_LVTT) == vec)
- apic->timer.last_update = ktime_add_ns(
- apic->timer.last_update,
- apic->timer.period);
-}
-
int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu)
{
int vector = kvm_apic_has_interrupt(vcpu);
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 8185888..45ab6ee 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -12,7 +12,6 @@ struct kvm_lapic {
atomic_t pending;
s64 period; /* unit: ns */
u32 divide_count;
- ktime_t last_update;
struct hrtimer dev;
} timer;
struct kvm_vcpu *vcpu;
@@ -42,7 +41,6 @@ void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
-void kvm_apic_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 410ddbc..c3c0191 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -384,7 +384,9 @@ static void account_shadowed(struct kvm *kvm, gfn_t gfn)
{
int *write_count;
- write_count = slot_largepage_idx(gfn, gfn_to_memslot(kvm, gfn));
+ gfn = unalias_gfn(kvm, gfn);
+ write_count = slot_largepage_idx(gfn,
+ gfn_to_memslot_unaliased(kvm, gfn));
*write_count += 1;
}
@@ -392,16 +394,20 @@ static void unaccount_shadowed(struct kvm *kvm, gfn_t gfn)
{
int *write_count;
- write_count = slot_largepage_idx(gfn, gfn_to_memslot(kvm, gfn));
+ gfn = unalias_gfn(kvm, gfn);
+ write_count = slot_largepage_idx(gfn,
+ gfn_to_memslot_unaliased(kvm, gfn));
*write_count -= 1;
WARN_ON(*write_count < 0);
}
static int has_wrprotected_page(struct kvm *kvm, gfn_t gfn)
{
- struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn);
+ struct kvm_memory_slot *slot;
int *largepage_idx;
+ gfn = unalias_gfn(kvm, gfn);
+ slot = gfn_to_memslot_unaliased(kvm, gfn);
if (slot) {
largepage_idx = slot_largepage_idx(gfn, slot);
return *largepage_idx;
@@ -787,7 +793,7 @@ static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu,
set_page_private(virt_to_page(sp->spt), (unsigned long)sp);
list_add(&sp->link, &vcpu->kvm->arch.active_mmu_pages);
ASSERT(is_empty_shadow_page(sp->spt));
- sp->slot_bitmap = 0;
+ bitmap_zero(sp->slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS);
sp->multimapped = 0;
sp->parent_pte = parent_pte;
--vcpu->kvm->arch.n_free_mmu_pages;
@@ -975,7 +981,7 @@ static int mmu_unsync_walk(struct kvm_mmu_page *sp,
for_each_unsync_children(sp->unsync_child_bitmap, i) {
u64 ent = sp->spt[i];
- if (is_shadow_present_pte(ent)) {
+ if (is_shadow_present_pte(ent) && !is_large_pte(ent)) {
struct kvm_mmu_page *child;
child = page_header(ent & PT64_BASE_ADDR_MASK);
@@ -1153,6 +1159,8 @@ static int walk_shadow(struct kvm_shadow_walk *walker,
if (level == PT32E_ROOT_LEVEL) {
shadow_addr = vcpu->arch.mmu.pae_root[(addr >> 30) & 3];
shadow_addr &= PT64_BASE_ADDR_MASK;
+ if (!shadow_addr)
+ return 1;
--level;
}
@@ -1362,7 +1370,7 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
int slot = memslot_id(kvm, gfn_to_memslot(kvm, gfn));
struct kvm_mmu_page *sp = page_header(__pa(pte));
- __set_bit(slot, &sp->slot_bitmap);
+ __set_bit(slot, sp->slot_bitmap);
}
static void mmu_convert_notrap(struct kvm_mmu_page *sp)
@@ -2451,7 +2459,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
int i;
u64 *pt;
- if (!test_bit(slot, &sp->slot_bitmap))
+ if (!test_bit(slot, sp->slot_bitmap))
continue;
pt = sp->spt;
@@ -2860,8 +2868,8 @@ static void audit_write_protection(struct kvm_vcpu *vcpu)
if (sp->role.metaphysical)
continue;
- slot = gfn_to_memslot(vcpu->kvm, sp->gfn);
gfn = unalias_gfn(vcpu->kvm, sp->gfn);
+ slot = gfn_to_memslot_unaliased(vcpu->kvm, sp->gfn);
rmapp = &slot->rmap[gfn - slot->base_gfn];
if (*rmapp)
printk(KERN_ERR "%s: (%s) shadow page has writable"
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 84eee43..9b5355e 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -467,9 +467,13 @@ static int FNAME(shadow_invlpg_entry)(struct kvm_shadow_walk *_sw,
u64 *sptep, int level)
{
- if (level == PT_PAGE_TABLE_LEVEL) {
- if (is_shadow_present_pte(*sptep))
+ if (level == PT_PAGE_TABLE_LEVEL ||
+ ((level == PT_DIRECTORY_LEVEL) && is_large_pte(*sptep))) {
+ if (is_shadow_present_pte(*sptep)) {
rmap_remove(vcpu->kvm, sptep);
+ if (is_large_pte(*sptep))
+ --vcpu->kvm->stat.lpages;
+ }
set_shadow_pte(sptep, shadow_trap_nonpresent_pte);
return 1;
}
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 9c4ce65..ef71ef1 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -772,6 +772,22 @@ static void svm_get_segment(struct kvm_vcpu *vcpu,
var->l = (s->attrib >> SVM_SELECTOR_L_SHIFT) & 1;
var->db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1;
var->g = (s->attrib >> SVM_SELECTOR_G_SHIFT) & 1;
+
+ /*
+ * SVM always stores 0 for the 'G' bit in the CS selector in
+ * the VMCB on a VMEXIT. This hurts cross-vendor migration:
+ * Intel's VMENTRY has a check on the 'G' bit.
+ */
+ if (seg == VCPU_SREG_CS)
+ var->g = s->limit > 0xfffff;
+
+ /*
+ * Work around a bug where the busy flag in the tr selector
+ * isn't exposed
+ */
+ if (seg == VCPU_SREG_TR)
+ var->type |= 0x2;
+
var->unusable = !var->present;
}
@@ -1596,7 +1612,6 @@ static void svm_intr_assist(struct kvm_vcpu *vcpu)
/* Okay, we can deliver the interrupt: grab it and update PIC state. */
intr_vector = kvm_cpu_get_interrupt(vcpu);
svm_inject_irq(svm, intr_vector);
- kvm_timer_intr_post(vcpu, intr_vector);
out:
update_cr8_intercept(vcpu);
}
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index a4018b0..b61f914 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -897,6 +897,7 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
data = vmcs_readl(GUEST_SYSENTER_ESP);
break;
default:
+ vmx_load_host_state(to_vmx(vcpu));
msr = find_msr_entry(to_vmx(vcpu), msr_index);
if (msr) {
data = msr->data;
@@ -2407,7 +2408,7 @@ static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr)
{
int ret;
struct kvm_userspace_memory_region tss_mem = {
- .slot = 8,
+ .slot = TSS_PRIVATE_MEMSLOT,
.guest_phys_addr = addr,
.memory_size = PAGE_SIZE * 3,
.flags = 0,
@@ -3171,10 +3172,8 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu)
else
enable_irq_window(vcpu);
}
- if (vcpu->arch.interrupt.pending) {
+ if (vcpu->arch.interrupt.pending)
vmx_inject_irq(vcpu, vcpu->arch.interrupt.nr);
- kvm_timer_intr_post(vcpu, vcpu->arch.interrupt.nr);
- }
}
/*
diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h
index ec5edc3..d8be1bf 100644
--- a/arch/x86/kvm/vmx.h
+++ b/arch/x86/kvm/vmx.h
@@ -331,8 +331,9 @@ enum vmcs_field {
#define AR_RESERVD_MASK 0xfffe0f00
-#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT 9
-#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT 10
+#define TSS_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 0)
+#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 1)
+#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 2)
#define VMX_NR_VPIDS (1 << 16)
#define VMX_VPID_EXTENT_SINGLE_CONTEXT 1
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f1f8ff2..f1db5ba 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -906,7 +906,6 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_USER_MEMORY:
case KVM_CAP_SET_TSS_ADDR:
case KVM_CAP_EXT_CPUID:
- case KVM_CAP_CLOCKSOURCE:
case KVM_CAP_PIT:
case KVM_CAP_NOP_IO_DELAY:
case KVM_CAP_MP_STATE:
@@ -931,6 +930,9 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_IOMMU:
r = intel_iommu_found();
break;
+ case KVM_CAP_CLOCKSOURCE:
+ r = boot_cpu_has(X86_FEATURE_CONSTANT_TSC);
+ break;
default:
r = 0;
break;
@@ -1188,6 +1190,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
int t, times = entry->eax & 0xff;
entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
+ entry->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
for (t = 1; t < times && *nent < maxnent; ++t) {
do_cpuid_1_ent(&entry[t], function, 0);
entry[t].flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
@@ -1218,7 +1221,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
/* read more entries until level_type is zero */
for (i = 1; *nent < maxnent; ++i) {
- level_type = entry[i - 1].ecx & 0xff;
+ level_type = entry[i - 1].ecx & 0xff00;
if (!level_type)
break;
do_cpuid_1_ent(&entry[i], function, i);
@@ -2729,7 +2732,7 @@ static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
/* when no next entry is found, the current entry[i] is reselected */
- for (j = i + 1; j == i; j = (j + 1) % nent) {
+ for (j = i + 1; ; j = (j + 1) % nent) {
struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
if (ej->function == e->function) {
ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
@@ -2973,7 +2976,7 @@ static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
pr_debug("vcpu %d received sipi with vector # %x\n",
vcpu->vcpu_id, vcpu->arch.sipi_vector);
kvm_lapic_reset(vcpu);
- r = kvm_x86_ops->vcpu_reset(vcpu);
+ r = kvm_arch_vcpu_reset(vcpu);
if (r)
return r;
vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
@@ -3925,6 +3928,9 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu)
{
+ vcpu->arch.nmi_pending = false;
+ vcpu->arch.nmi_injected = false;
+
return kvm_x86_ops->vcpu_reset(vcpu);
}
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index ea05117..a958c0e 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -299,7 +299,7 @@ static u16 group_table[] = {
static u16 group2_table[] = {
[Group7*8] =
- SrcNone | ModRM, 0, 0, 0,
+ SrcNone | ModRM, 0, 0, SrcNone | ModRM,
SrcNone | ModRM | DstMem | Mov, 0,
SrcMem16 | ModRM | Mov, 0,
};
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 844df0c..d88c1b3 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -329,6 +329,9 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return -EINVAL;
}
flags = new_flags;
+ vma->vm_page_prot = __pgprot(
+ (pgprot_val(vma->vm_page_prot) & ~_PAGE_CACHE_MASK) |
+ flags);
}
if (((vma->vm_pgoff < max_low_pfn_mapped) ||
diff --git a/block/genhd.c b/block/genhd.c
index 2f7feda..3b74382 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -98,7 +98,7 @@ void disk_part_iter_init(struct disk_part_iter *piter, struct gendisk *disk,
if (flags & DISK_PITER_REVERSE)
piter->idx = ptbl->len - 1;
- else if (flags & DISK_PITER_INCL_PART0)
+ else if (flags & (DISK_PITER_INCL_PART0 | DISK_PITER_INCL_EMPTY_PART0))
piter->idx = 0;
else
piter->idx = 1;
@@ -134,7 +134,8 @@ struct hd_struct *disk_part_iter_next(struct disk_part_iter *piter)
/* determine iteration parameters */
if (piter->flags & DISK_PITER_REVERSE) {
inc = -1;
- if (piter->flags & DISK_PITER_INCL_PART0)
+ if (piter->flags & (DISK_PITER_INCL_PART0 |
+ DISK_PITER_INCL_EMPTY_PART0))
end = -1;
else
end = 0;
@@ -150,7 +151,10 @@ struct hd_struct *disk_part_iter_next(struct disk_part_iter *piter)
part = rcu_dereference(ptbl->part[piter->idx]);
if (!part)
continue;
- if (!(piter->flags & DISK_PITER_INCL_EMPTY) && !part->nr_sects)
+ if (!part->nr_sects &&
+ !(piter->flags & DISK_PITER_INCL_EMPTY) &&
+ !(piter->flags & DISK_PITER_INCL_EMPTY_PART0 &&
+ piter->idx == 0))
continue;
get_device(part_to_dev(part));
@@ -980,7 +984,7 @@ static int diskstats_show(struct seq_file *seqf, void *v)
"\n\n");
*/
- disk_part_iter_init(&piter, gp, DISK_PITER_INCL_PART0);
+ disk_part_iter_init(&piter, gp, DISK_PITER_INCL_EMPTY_PART0);
while ((hd = disk_part_iter_next(&piter))) {
cpu = part_stat_lock();
part_round_stats(cpu, hd);
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index afd5db3..349d69b 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -1146,9 +1146,10 @@ static int __init dock_init(void)
static void __exit dock_exit(void)
{
struct dock_station *dock_station;
+ struct dock_station *tmp;
unregister_acpi_bus_notifier(&dock_acpi_notifier);
- list_for_each_entry(dock_station, &dock_stations, sibiling)
+ list_for_each_entry_safe(dock_station, tmp, &dock_stations, sibiling)
dock_remove(dock_station);
}
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 4216399..233a5fd 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -8,7 +8,7 @@
* Copyright (C) 1999-2003 Andre Hedrick <andre@...ux-ide.org>
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
* Portions Copyright (C) 2003 Red Hat Inc
- * Portions Copyright (C) 2005-2007 MontaVista Software, Inc.
+ * Portions Copyright (C) 2005-2009 MontaVista Software, Inc.
*
* TODO
* Look into engine reset on timeout errors. Should not be required.
@@ -24,7 +24,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_hpt37x"
-#define DRV_VERSION "0.6.11"
+#define DRV_VERSION "0.6.12"
struct hpt_clock {
u8 xfer_speed;
@@ -445,23 +445,6 @@ static void hpt370_set_dmamode(struct ata_port *ap, struct ata_device *adev)
}
/**
- * hpt370_bmdma_start - DMA engine begin
- * @qc: ATA command
- *
- * The 370 and 370A want us to reset the DMA engine each time we
- * use it. The 372 and later are fine.
- */
-
-static void hpt370_bmdma_start(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);
- udelay(10);
- ata_bmdma_start(qc);
-}
-
-/**
* hpt370_bmdma_end - DMA engine stop
* @qc: ATA command
*
@@ -598,7 +581,6 @@ static struct scsi_host_template hpt37x_sht = {
static struct ata_port_operations hpt370_port_ops = {
.inherits = &ata_bmdma_port_ops,
- .bmdma_start = hpt370_bmdma_start,
.bmdma_stop = hpt370_bmdma_stop,
.mode_filter = hpt370_filter,
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 10d6cbd..2224b76 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -1226,7 +1226,7 @@ int agp_generic_alloc_pages(struct agp_bridge_data *bridge, struct agp_memory *m
int i, ret = -ENOMEM;
for (i = 0; i < num_pages; i++) {
- page = alloc_page(GFP_KERNEL | GFP_DMA32);
+ page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
/* agp_free_memory() needs gart address */
if (page == NULL)
goto out;
@@ -1257,7 +1257,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
{
struct page * page;
- page = alloc_page(GFP_KERNEL | GFP_DMA32);
+ page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
if (page == NULL)
return NULL;
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 96adf28..20d90e6 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -90,6 +90,7 @@ out1:
blkdev_put(bdev, filp->f_mode);
out:
mutex_unlock(&raw_mutex);
+ unlock_kernel();
return err;
}
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 2d637e0..fdcd0ab 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -101,6 +101,7 @@ struct buffer_desc {
u32 phys_addr;
u32 __reserved[4];
struct buffer_desc *next;
+ enum dma_data_direction dir;
};
struct crypt_ctl {
@@ -132,14 +133,10 @@ struct crypt_ctl {
struct ablk_ctx {
struct buffer_desc *src;
struct buffer_desc *dst;
- unsigned src_nents;
- unsigned dst_nents;
};
struct aead_ctx {
struct buffer_desc *buffer;
- unsigned short assoc_nents;
- unsigned short src_nents;
struct scatterlist ivlist;
/* used when the hmac is not on one sg entry */
u8 *hmac_virt;
@@ -312,7 +309,7 @@ static struct crypt_ctl *get_crypt_desc_emerg(void)
}
}
-static void free_buf_chain(struct buffer_desc *buf, u32 phys)
+static void free_buf_chain(struct device *dev, struct buffer_desc *buf,u32 phys)
{
while (buf) {
struct buffer_desc *buf1;
@@ -320,6 +317,7 @@ static void free_buf_chain(struct buffer_desc *buf, u32 phys)
buf1 = buf->next;
phys1 = buf->phys_next;
+ dma_unmap_single(dev, buf->phys_next, buf->buf_len, buf->dir);
dma_pool_free(buffer_pool, buf, phys);
buf = buf1;
phys = phys1;
@@ -348,7 +346,6 @@ static void one_packet(dma_addr_t phys)
struct crypt_ctl *crypt;
struct ixp_ctx *ctx;
int failed;
- enum dma_data_direction src_direction = DMA_BIDIRECTIONAL;
failed = phys & 0x1 ? -EBADMSG : 0;
phys &= ~0x3;
@@ -358,13 +355,8 @@ static void one_packet(dma_addr_t phys)
case CTL_FLAG_PERFORM_AEAD: {
struct aead_request *req = crypt->data.aead_req;
struct aead_ctx *req_ctx = aead_request_ctx(req);
- dma_unmap_sg(dev, req->assoc, req_ctx->assoc_nents,
- DMA_TO_DEVICE);
- dma_unmap_sg(dev, &req_ctx->ivlist, 1, DMA_BIDIRECTIONAL);
- dma_unmap_sg(dev, req->src, req_ctx->src_nents,
- DMA_BIDIRECTIONAL);
- free_buf_chain(req_ctx->buffer, crypt->src_buf);
+ free_buf_chain(dev, req_ctx->buffer, crypt->src_buf);
if (req_ctx->hmac_virt) {
finish_scattered_hmac(crypt);
}
@@ -374,16 +366,11 @@ static void one_packet(dma_addr_t phys)
case CTL_FLAG_PERFORM_ABLK: {
struct ablkcipher_request *req = crypt->data.ablk_req;
struct ablk_ctx *req_ctx = ablkcipher_request_ctx(req);
- int nents;
+
if (req_ctx->dst) {
- nents = req_ctx->dst_nents;
- dma_unmap_sg(dev, req->dst, nents, DMA_FROM_DEVICE);
- free_buf_chain(req_ctx->dst, crypt->dst_buf);
- src_direction = DMA_TO_DEVICE;
+ free_buf_chain(dev, req_ctx->dst, crypt->dst_buf);
}
- nents = req_ctx->src_nents;
- dma_unmap_sg(dev, req->src, nents, src_direction);
- free_buf_chain(req_ctx->src, crypt->src_buf);
+ free_buf_chain(dev, req_ctx->src, crypt->src_buf);
req->base.complete(&req->base, failed);
break;
}
@@ -748,56 +735,35 @@ static int setup_cipher(struct crypto_tfm *tfm, int encrypt,
return 0;
}
-static int count_sg(struct scatterlist *sg, int nbytes)
+static struct buffer_desc *chainup_buffers(struct device *dev,
+ struct scatterlist *sg, unsigned nbytes,
+ struct buffer_desc *buf, gfp_t flags,
+ enum dma_data_direction dir)
{
- int i;
- for (i = 0; nbytes > 0; i++, sg = sg_next(sg))
- nbytes -= sg->length;
- return i;
-}
-
-static struct buffer_desc *chainup_buffers(struct scatterlist *sg,
- unsigned nbytes, struct buffer_desc *buf, gfp_t flags)
-{
- int nents = 0;
-
- while (nbytes > 0) {
+ for (;nbytes > 0; sg = scatterwalk_sg_next(sg)) {
+ unsigned len = min(nbytes, sg->length);
struct buffer_desc *next_buf;
u32 next_buf_phys;
- unsigned len = min(nbytes, sg_dma_len(sg));
+ void *ptr;
- nents++;
nbytes -= len;
- if (!buf->phys_addr) {
- buf->phys_addr = sg_dma_address(sg);
- buf->buf_len = len;
- buf->next = NULL;
- buf->phys_next = 0;
- goto next;
- }
- /* Two consecutive chunks on one page may be handled by the old
- * buffer descriptor, increased by the length of the new one
- */
- if (sg_dma_address(sg) == buf->phys_addr + buf->buf_len) {
- buf->buf_len += len;
- goto next;
- }
+ ptr = page_address(sg_page(sg)) + sg->offset;
next_buf = dma_pool_alloc(buffer_pool, flags, &next_buf_phys);
- if (!next_buf)
- return NULL;
+ if (!next_buf) {
+ buf = NULL;
+ break;
+ }
+ sg_dma_address(sg) = dma_map_single(dev, ptr, len, dir);
buf->next = next_buf;
buf->phys_next = next_buf_phys;
-
buf = next_buf;
- buf->next = NULL;
- buf->phys_next = 0;
+
buf->phys_addr = sg_dma_address(sg);
buf->buf_len = len;
-next:
- if (nbytes > 0) {
- sg = sg_next(sg);
- }
+ buf->dir = dir;
}
+ buf->next = NULL;
+ buf->phys_next = 0;
return buf;
}
@@ -858,12 +824,12 @@ static int ablk_perform(struct ablkcipher_request *req, int encrypt)
struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
struct ixp_ctx *ctx = crypto_ablkcipher_ctx(tfm);
unsigned ivsize = crypto_ablkcipher_ivsize(tfm);
- int ret = -ENOMEM;
struct ix_sa_dir *dir;
struct crypt_ctl *crypt;
- unsigned int nbytes = req->nbytes, nents;
+ unsigned int nbytes = req->nbytes;
enum dma_data_direction src_direction = DMA_BIDIRECTIONAL;
struct ablk_ctx *req_ctx = ablkcipher_request_ctx(req);
+ struct buffer_desc src_hook;
gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
GFP_KERNEL : GFP_ATOMIC;
@@ -876,7 +842,7 @@ static int ablk_perform(struct ablkcipher_request *req, int encrypt)
crypt = get_crypt_desc();
if (!crypt)
- return ret;
+ return -ENOMEM;
crypt->data.ablk_req = req;
crypt->crypto_ctx = dir->npe_ctx_phys;
@@ -889,53 +855,41 @@ static int ablk_perform(struct ablkcipher_request *req, int encrypt)
BUG_ON(ivsize && !req->info);
memcpy(crypt->iv, req->info, ivsize);
if (req->src != req->dst) {
+ struct buffer_desc dst_hook;
crypt->mode |= NPE_OP_NOT_IN_PLACE;
- nents = count_sg(req->dst, nbytes);
/* This was never tested by Intel
* for more than one dst buffer, I think. */
- BUG_ON(nents != 1);
- req_ctx->dst_nents = nents;
- dma_map_sg(dev, req->dst, nents, DMA_FROM_DEVICE);
- req_ctx->dst = dma_pool_alloc(buffer_pool, flags,&crypt->dst_buf);
- if (!req_ctx->dst)
- goto unmap_sg_dest;
- req_ctx->dst->phys_addr = 0;
- if (!chainup_buffers(req->dst, nbytes, req_ctx->dst, flags))
+ BUG_ON(req->dst->length < nbytes);
+ req_ctx->dst = NULL;
+ if (!chainup_buffers(dev, req->dst, nbytes, &dst_hook,
+ flags, DMA_FROM_DEVICE))
goto free_buf_dest;
src_direction = DMA_TO_DEVICE;
+ req_ctx->dst = dst_hook.next;
+ crypt->dst_buf = dst_hook.phys_next;
} else {
req_ctx->dst = NULL;
- req_ctx->dst_nents = 0;
}
- nents = count_sg(req->src, nbytes);
- req_ctx->src_nents = nents;
- dma_map_sg(dev, req->src, nents, src_direction);
-
- req_ctx->src = dma_pool_alloc(buffer_pool, flags, &crypt->src_buf);
- if (!req_ctx->src)
- goto unmap_sg_src;
- req_ctx->src->phys_addr = 0;
- if (!chainup_buffers(req->src, nbytes, req_ctx->src, flags))
+ req_ctx->src = NULL;
+ if (!chainup_buffers(dev, req->src, nbytes, &src_hook,
+ flags, src_direction))
goto free_buf_src;
+ req_ctx->src = src_hook.next;
+ crypt->src_buf = src_hook.phys_next;
crypt->ctl_flags |= CTL_FLAG_PERFORM_ABLK;
qmgr_put_entry(SEND_QID, crypt_virt2phys(crypt));
BUG_ON(qmgr_stat_overflow(SEND_QID));
return -EINPROGRESS;
free_buf_src:
- free_buf_chain(req_ctx->src, crypt->src_buf);
-unmap_sg_src:
- dma_unmap_sg(dev, req->src, req_ctx->src_nents, src_direction);
+ free_buf_chain(dev, req_ctx->src, crypt->src_buf);
free_buf_dest:
if (req->src != req->dst) {
- free_buf_chain(req_ctx->dst, crypt->dst_buf);
-unmap_sg_dest:
- dma_unmap_sg(dev, req->src, req_ctx->dst_nents,
- DMA_FROM_DEVICE);
+ free_buf_chain(dev, req_ctx->dst, crypt->dst_buf);
}
crypt->ctl_flags = CTL_FLAG_UNUSED;
- return ret;
+ return -ENOMEM;
}
static int ablk_encrypt(struct ablkcipher_request *req)
@@ -983,7 +937,7 @@ static int hmac_inconsistent(struct scatterlist *sg, unsigned start,
break;
offset += sg->length;
- sg = sg_next(sg);
+ sg = scatterwalk_sg_next(sg);
}
return (start + nbytes > offset + sg->length);
}
@@ -995,11 +949,10 @@ static int aead_perform(struct aead_request *req, int encrypt,
struct ixp_ctx *ctx = crypto_aead_ctx(tfm);
unsigned ivsize = crypto_aead_ivsize(tfm);
unsigned authsize = crypto_aead_authsize(tfm);
- int ret = -ENOMEM;
struct ix_sa_dir *dir;
struct crypt_ctl *crypt;
- unsigned int cryptlen, nents;
- struct buffer_desc *buf;
+ unsigned int cryptlen;
+ struct buffer_desc *buf, src_hook;
struct aead_ctx *req_ctx = aead_request_ctx(req);
gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
GFP_KERNEL : GFP_ATOMIC;
@@ -1020,7 +973,7 @@ static int aead_perform(struct aead_request *req, int encrypt,
}
crypt = get_crypt_desc();
if (!crypt)
- return ret;
+ return -ENOMEM;
crypt->data.aead_req = req;
crypt->crypto_ctx = dir->npe_ctx_phys;
@@ -1039,31 +992,27 @@ static int aead_perform(struct aead_request *req, int encrypt,
BUG(); /* -ENOTSUP because of my lazyness */
}
- req_ctx->buffer = dma_pool_alloc(buffer_pool, flags, &crypt->src_buf);
- if (!req_ctx->buffer)
- goto out;
- req_ctx->buffer->phys_addr = 0;
/* ASSOC data */
- nents = count_sg(req->assoc, req->assoclen);
- req_ctx->assoc_nents = nents;
- dma_map_sg(dev, req->assoc, nents, DMA_TO_DEVICE);
- buf = chainup_buffers(req->assoc, req->assoclen, req_ctx->buffer,flags);
+ buf = chainup_buffers(dev, req->assoc, req->assoclen, &src_hook,
+ flags, DMA_TO_DEVICE);
+ req_ctx->buffer = src_hook.next;
+ crypt->src_buf = src_hook.phys_next;
if (!buf)
- goto unmap_sg_assoc;
+ goto out;
/* IV */
sg_init_table(&req_ctx->ivlist, 1);
sg_set_buf(&req_ctx->ivlist, iv, ivsize);
- dma_map_sg(dev, &req_ctx->ivlist, 1, DMA_BIDIRECTIONAL);
- buf = chainup_buffers(&req_ctx->ivlist, ivsize, buf, flags);
+ buf = chainup_buffers(dev, &req_ctx->ivlist, ivsize, buf, flags,
+ DMA_BIDIRECTIONAL);
if (!buf)
- goto unmap_sg_iv;
+ goto free_chain;
if (unlikely(hmac_inconsistent(req->src, cryptlen, authsize))) {
/* The 12 hmac bytes are scattered,
* we need to copy them into a safe buffer */
req_ctx->hmac_virt = dma_pool_alloc(buffer_pool, flags,
&crypt->icv_rev_aes);
if (unlikely(!req_ctx->hmac_virt))
- goto unmap_sg_iv;
+ goto free_chain;
if (!encrypt) {
scatterwalk_map_and_copy(req_ctx->hmac_virt,
req->src, cryptlen, authsize, 0);
@@ -1073,33 +1022,28 @@ static int aead_perform(struct aead_request *req, int encrypt,
req_ctx->hmac_virt = NULL;
}
/* Crypt */
- nents = count_sg(req->src, cryptlen + authsize);
- req_ctx->src_nents = nents;
- dma_map_sg(dev, req->src, nents, DMA_BIDIRECTIONAL);
- buf = chainup_buffers(req->src, cryptlen + authsize, buf, flags);
+ buf = chainup_buffers(dev, req->src, cryptlen + authsize, buf, flags,
+ DMA_BIDIRECTIONAL);
if (!buf)
- goto unmap_sg_src;
+ goto free_hmac_virt;
if (!req_ctx->hmac_virt) {
crypt->icv_rev_aes = buf->phys_addr + buf->buf_len - authsize;
}
+
crypt->ctl_flags |= CTL_FLAG_PERFORM_AEAD;
qmgr_put_entry(SEND_QID, crypt_virt2phys(crypt));
BUG_ON(qmgr_stat_overflow(SEND_QID));
return -EINPROGRESS;
-unmap_sg_src:
- dma_unmap_sg(dev, req->src, req_ctx->src_nents, DMA_BIDIRECTIONAL);
+free_hmac_virt:
if (req_ctx->hmac_virt) {
dma_pool_free(buffer_pool, req_ctx->hmac_virt,
crypt->icv_rev_aes);
}
-unmap_sg_iv:
- dma_unmap_sg(dev, &req_ctx->ivlist, 1, DMA_BIDIRECTIONAL);
-unmap_sg_assoc:
- dma_unmap_sg(dev, req->assoc, req_ctx->assoc_nents, DMA_TO_DEVICE);
- free_buf_chain(req_ctx->buffer, crypt->src_buf);
+free_chain:
+ free_buf_chain(dev, req_ctx->buffer, crypt->src_buf);
out:
crypt->ctl_flags = CTL_FLAG_UNUSED;
- return ret;
+ return -ENOMEM;
}
static int aead_setup(struct crypto_aead *tfm, unsigned int authsize)
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index f5afd46..23fb714 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -114,6 +114,8 @@
* the register setting lists into the table indexed by the clock selected
* - set the correct hwif->ultra_mask for each individual chip
* - add Ultra and MW DMA mode filtering for the HPT37[24] based SATA cards
+ * - stop resetting HPT370's state machine before each DMA transfer as that has
+ * caused more harm than good
* Sergei Shtylyov, <sshtylyov@...mvista.com> or <source@...sta.com>
*/
@@ -133,7 +135,7 @@
#define DRV_NAME "hpt366"
/* various tuning parameters */
-#define HPT_RESET_STATE_ENGINE
+#undef HPT_RESET_STATE_ENGINE
#undef HPT_DELAY_INTERRUPT
#define HPT_SERIALIZE_IO 0
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index 2880eaa..38ad419 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -50,9 +50,8 @@ static LIST_HEAD(gameport_list);
static struct bus_type gameport_bus;
-static void gameport_add_driver(struct gameport_driver *drv);
static void gameport_add_port(struct gameport *gameport);
-static void gameport_destroy_port(struct gameport *gameport);
+static void gameport_attach_driver(struct gameport_driver *drv);
static void gameport_reconnect_port(struct gameport *gameport);
static void gameport_disconnect_port(struct gameport *gameport);
@@ -230,7 +229,6 @@ static void gameport_find_driver(struct gameport *gameport)
enum gameport_event_type {
GAMEPORT_REGISTER_PORT,
- GAMEPORT_REGISTER_DRIVER,
GAMEPORT_ATTACH_DRIVER,
};
@@ -374,8 +372,8 @@ static void gameport_handle_event(void)
gameport_add_port(event->object);
break;
- case GAMEPORT_REGISTER_DRIVER:
- gameport_add_driver(event->object);
+ case GAMEPORT_ATTACH_DRIVER:
+ gameport_attach_driver(event->object);
break;
default:
@@ -707,14 +705,14 @@ static int gameport_driver_remove(struct device *dev)
return 0;
}
-static void gameport_add_driver(struct gameport_driver *drv)
+static void gameport_attach_driver(struct gameport_driver *drv)
{
int error;
- error = driver_register(&drv->driver);
+ error = driver_attach(&drv->driver);
if (error)
printk(KERN_ERR
- "gameport: driver_register() failed for %s, error: %d\n",
+ "gameport: driver_attach() failed for %s, error: %d\n",
drv->driver.name, error);
}
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index 3f11910..fcec2df 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -46,6 +46,9 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode");
/* length limit according to Siemens 3070usb-protokoll.doc ch. 2.1 */
#define IF_WRITEBUF 264
+/* interrupt pipe message size according to ibid. ch. 2.2 */
+#define IP_MSGSIZE 3
+
/* Values for the Gigaset 307x */
#define USB_GIGA_VENDOR_ID 0x0681
#define USB_3070_PRODUCT_ID 0x0001
@@ -110,7 +113,7 @@ struct bas_cardstate {
unsigned char *rcvbuf; /* AT reply receive buffer */
struct urb *urb_int_in; /* URB for interrupt pipe */
- unsigned char int_in_buf[3];
+ unsigned char *int_in_buf;
spinlock_t lock; /* locks all following */
int basstate; /* bitmap (BS_*) */
@@ -657,7 +660,7 @@ static void read_int_callback(struct urb *urb)
}
/* drop incomplete packets even if the missing bytes wouldn't matter */
- if (unlikely(urb->actual_length < 3)) {
+ if (unlikely(urb->actual_length < IP_MSGSIZE)) {
dev_warn(cs->dev, "incomplete interrupt packet (%d bytes)\n",
urb->actual_length);
goto resubmit;
@@ -2127,6 +2130,7 @@ static void gigaset_reinitbcshw(struct bc_state *bcs)
static void gigaset_freecshw(struct cardstate *cs)
{
/* timers, URBs and rcvbuf are disposed of in disconnect */
+ kfree(cs->hw.bas->int_in_buf);
kfree(cs->hw.bas);
cs->hw.bas = NULL;
}
@@ -2232,6 +2236,12 @@ static int gigaset_probe(struct usb_interface *interface,
}
hostif = interface->cur_altsetting;
}
+ ucs->int_in_buf = kmalloc(IP_MSGSIZE, GFP_KERNEL);
+ if (!ucs->int_in_buf) {
+ kfree(ucs);
+ pr_err("out of memory\n");
+ return 0;
+ }
/* Reject application specific interfaces
*/
@@ -2290,7 +2300,7 @@ static int gigaset_probe(struct usb_interface *interface,
usb_fill_int_urb(ucs->urb_int_in, udev,
usb_rcvintpipe(udev,
(endpoint->bEndpointAddress) & 0x0f),
- ucs->int_in_buf, 3, read_int_callback, cs,
+ ucs->int_in_buf, IP_MSGSIZE, read_int_callback, cs,
endpoint->bInterval);
if ((rc = usb_submit_urb(ucs->urb_int_in, GFP_KERNEL)) != 0) {
dev_err(cs->dev, "could not submit interrupt URB: %s\n",
diff --git a/drivers/md/md.c b/drivers/md/md.c
index fb15676..ead7a21 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3694,6 +3694,10 @@ static int do_md_run(mddev_t * mddev)
return err;
}
if (mddev->pers->sync_request) {
+ /* wait for any previously scheduled redundancy groups
+ * to be removed
+ */
+ flush_scheduled_work();
if (sysfs_create_group(&mddev->kobj, &md_redundancy_group))
printk(KERN_WARNING
"md: cannot register extra attributes for %s\n",
@@ -3824,6 +3828,14 @@ static void restore_bitmap_write_access(struct file *file)
spin_unlock(&inode->i_lock);
}
+
+static void sysfs_delayed_rm(struct work_struct *ws)
+{
+ mddev_t *mddev = container_of(ws, mddev_t, del_work);
+
+ sysfs_remove_group(&mddev->kobj, &md_redundancy_group);
+}
+
/* mode:
* 0 - completely stop and dis-assemble array
* 1 - switch to readonly
@@ -3833,6 +3845,7 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
{
int err = 0;
struct gendisk *disk = mddev->gendisk;
+ int remove_group = 0;
if (atomic_read(&mddev->openers) > is_open) {
printk("md: %s still in use.\n",mdname(mddev));
@@ -3868,10 +3881,9 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
mddev->queue->merge_bvec_fn = NULL;
mddev->queue->unplug_fn = NULL;
mddev->queue->backing_dev_info.congested_fn = NULL;
- if (mddev->pers->sync_request)
- sysfs_remove_group(&mddev->kobj, &md_redundancy_group);
-
module_put(mddev->pers->owner);
+ if (mddev->pers->sync_request)
+ remove_group = 1;
mddev->pers = NULL;
/* tell userspace to handle 'inactive' */
sysfs_notify_dirent(mddev->sysfs_state);
@@ -3919,6 +3931,15 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open)
/* make sure all md_delayed_delete calls have finished */
flush_scheduled_work();
+ /* we can't wait for group removal under mddev_lock as
+ * threads holding the group 'active' need to acquire
+ * mddev_lock before going inactive
+ */
+ if (remove_group) {
+ INIT_WORK(&mddev->del_work, sysfs_delayed_rm);
+ schedule_work(&mddev->del_work);
+ }
+
export_array(mddev);
mddev->array_sectors = 0;
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 36b88e7..33fed06 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -281,11 +281,17 @@ static u32 dbg_level;
static struct workqueue_struct *tpacpi_wq;
+enum led_status_t {
+ TPACPI_LED_OFF = 0,
+ TPACPI_LED_ON,
+ TPACPI_LED_BLINK,
+};
+
/* Special LED class that can defer work */
struct tpacpi_led_classdev {
struct led_classdev led_classdev;
struct work_struct work;
- enum led_brightness new_brightness;
+ enum led_status_t new_state;
unsigned int led;
};
@@ -3489,7 +3495,7 @@ static void light_set_status_worker(struct work_struct *work)
container_of(work, struct tpacpi_led_classdev, work);
if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))
- light_set_status((data->new_brightness != LED_OFF));
+ light_set_status((data->new_state != TPACPI_LED_OFF));
}
static void light_sysfs_set(struct led_classdev *led_cdev,
@@ -3499,7 +3505,8 @@ static void light_sysfs_set(struct led_classdev *led_cdev,
container_of(led_cdev,
struct tpacpi_led_classdev,
led_classdev);
- data->new_brightness = brightness;
+ data->new_state = (brightness != LED_OFF) ?
+ TPACPI_LED_ON : TPACPI_LED_OFF;
queue_work(tpacpi_wq, &data->work);
}
@@ -4006,12 +4013,6 @@ enum { /* For TPACPI_LED_OLD */
TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */
};
-enum led_status_t {
- TPACPI_LED_OFF = 0,
- TPACPI_LED_ON,
- TPACPI_LED_BLINK,
-};
-
static enum led_access_mode led_supported;
TPACPI_HANDLE(led, ec, "SLED", /* 570 */
@@ -4105,23 +4106,13 @@ static int led_set_status(const unsigned int led,
return rc;
}
-static void led_sysfs_set_status(unsigned int led,
- enum led_brightness brightness)
-{
- led_set_status(led,
- (brightness == LED_OFF) ?
- TPACPI_LED_OFF :
- (tpacpi_led_state_cache[led] == TPACPI_LED_BLINK) ?
- TPACPI_LED_BLINK : TPACPI_LED_ON);
-}
-
static void led_set_status_worker(struct work_struct *work)
{
struct tpacpi_led_classdev *data =
container_of(work, struct tpacpi_led_classdev, work);
if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))
- led_sysfs_set_status(data->led, data->new_brightness);
+ led_set_status(data->led, data->new_state);
}
static void led_sysfs_set(struct led_classdev *led_cdev,
@@ -4130,7 +4121,13 @@ static void led_sysfs_set(struct led_classdev *led_cdev,
struct tpacpi_led_classdev *data = container_of(led_cdev,
struct tpacpi_led_classdev, led_classdev);
- data->new_brightness = brightness;
+ if (brightness == LED_OFF)
+ data->new_state = TPACPI_LED_OFF;
+ else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK)
+ data->new_state = TPACPI_LED_ON;
+ else
+ data->new_state = TPACPI_LED_BLINK;
+
queue_work(tpacpi_wq, &data->work);
}
@@ -4148,7 +4145,7 @@ static int led_sysfs_blink_set(struct led_classdev *led_cdev,
} else if ((*delay_on != 500) || (*delay_off != 500))
return -EINVAL;
- data->new_brightness = TPACPI_LED_BLINK;
+ data->new_state = TPACPI_LED_BLINK;
queue_work(tpacpi_wq, &data->work);
return 0;
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index c3bda5c..f1521c6 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -750,7 +750,7 @@ static void b44_recycle_rx(struct b44 *bp, int src_idx, u32 dest_idx_unmasked)
dest_idx * sizeof(dest_desc),
DMA_BIDIRECTIONAL);
- ssb_dma_sync_single_for_device(bp->sdev, le32_to_cpu(src_desc->addr),
+ ssb_dma_sync_single_for_device(bp->sdev, dest_map->mapping,
RX_PKT_BUF_SZ,
DMA_FROM_DEVICE);
}
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a3efba5..f0c6682 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3536,11 +3536,26 @@ static int bond_slave_netdev_event(unsigned long event, struct net_device *slave
}
break;
case NETDEV_CHANGE:
- /*
- * TODO: is this what we get if somebody
- * sets up a hierarchical bond, then rmmod's
- * one of the slave bonding devices?
- */
+ if (bond->params.mode == BOND_MODE_8023AD || bond_is_lb(bond)) {
+ struct slave *slave;
+
+ slave = bond_get_slave_by_dev(bond, slave_dev);
+ if (slave) {
+ u16 old_speed = slave->speed;
+ u16 old_duplex = slave->duplex;
+
+ bond_update_speed_duplex(slave);
+
+ if (bond_is_lb(bond))
+ break;
+
+ if (old_speed != slave->speed)
+ bond_3ad_adapter_speed_changed(slave);
+ if (old_duplex != slave->duplex)
+ bond_3ad_adapter_duplex_changed(slave);
+ }
+ }
+
break;
case NETDEV_DOWN:
/*
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index ffb668d..61bee8e 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -248,6 +248,12 @@ static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
return (struct bonding *)slave->dev->master->priv;
}
+static inline bool bond_is_lb(const struct bonding *bond)
+{
+ return bond->params.mode == BOND_MODE_TLB
+ || bond->params.mode == BOND_MODE_ALB;
+}
+
#define BOND_FOM_NONE 0
#define BOND_FOM_ACTIVE 1
#define BOND_FOM_FOLLOW 2
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 4b7cb38..1aaa943 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2026,8 +2026,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!tp->pcie_cap && netif_msg_probe(tp))
dev_info(&pdev->dev, "no PCI Express capability\n");
- /* Unneeded ? Don't mess with Mrs. Murphy. */
- rtl8169_irq_mask_and_ack(ioaddr);
+ RTL_W16(IntrMask, 0x0000);
/* Soft reset the chip. */
RTL_W8(ChipCmd, CmdReset);
@@ -2039,6 +2038,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
msleep_interruptible(1);
}
+ RTL_W16(IntrStatus, 0xffff);
+
/* Identify chip attached to board */
rtl8169_get_mac_version(tp, ioaddr);
diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index accace5..86025f6 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -590,8 +590,8 @@ struct ath9k_country_entry {
u8 iso[3];
};
-#define REG_WRITE(_ah, _reg, _val) iowrite32(_val, _ah->ah_sh + _reg)
-#define REG_READ(_ah, _reg) ioread32(_ah->ah_sh + _reg)
+#define REG_WRITE(_ah, _reg, _val) ath9k_iowrite32((_ah), (_reg), (_val))
+#define REG_READ(_ah, _reg) ath9k_ioread32((_ah), (_reg))
#define SM(_v, _f) (((_v) << _f##_S) & _f)
#define MS(_v, _f) (((_v) & _f) >> _f##_S)
diff --git a/drivers/net/wireless/ath9k/core.c b/drivers/net/wireless/ath9k/core.c
index c5033f6..cbe32aa 100644
--- a/drivers/net/wireless/ath9k/core.c
+++ b/drivers/net/wireless/ath9k/core.c
@@ -1089,6 +1089,7 @@ int ath_init(u16 devid, struct ath_softc *sc)
sc->sc_cachelsz = csz << 2; /* convert to bytes */
spin_lock_init(&sc->sc_resetlock);
+ spin_lock_init(&sc->sc_serial_rw);
ah = ath9k_hw_attach(devid, sc, sc->mem, &status);
if (ah == NULL) {
diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index cb3e61e..9fe7183 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -1040,6 +1040,7 @@ struct ath_softc {
spinlock_t sc_rxbuflock;
spinlock_t sc_txbuflock;
spinlock_t sc_resetlock;
+ spinlock_t sc_serial_rw;
spinlock_t node_lock;
/* LEDs */
@@ -1081,4 +1082,36 @@ void ath_get_currentCountry(struct ath_softc *sc,
struct ath9k_country_entry *ctry);
u64 ath_extend_tsf(struct ath_softc *sc, u32 rstamp);
+/*
+ * Read and write, they both share the same lock. We do this to serialize
+ * reads and writes on Atheros 802.11n PCI devices only. This is required
+ * as the FIFO on these devices can only accept sanely 2 requests. After
+ * that the device goes bananas. Serializing the reads/writes prevents this
+ * from happening.
+ */
+
+static inline void ath9k_iowrite32(struct ath_hal *ah, u32 reg_offset, u32 val)
+{
+ if (ah->ah_config.serialize_regmode == SER_REG_MODE_ON) {
+ unsigned long flags;
+ spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
+ iowrite32(val, ah->ah_sc->mem + reg_offset);
+ spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
+ } else
+ iowrite32(val, ah->ah_sc->mem + reg_offset);
+}
+
+static inline unsigned int ath9k_ioread32(struct ath_hal *ah, u32 reg_offset)
+{
+ u32 val;
+ if (ah->ah_config.serialize_regmode == SER_REG_MODE_ON) {
+ unsigned long flags;
+ spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
+ val = ioread32(ah->ah_sc->mem + reg_offset);
+ spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
+ } else
+ val = ioread32(ah->ah_sc->mem + reg_offset);
+ return val;
+}
+
#endif /* CORE_H */
diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index 98bc25c..f392aa0 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -346,6 +346,25 @@ static void ath9k_hw_set_defaults(struct ath_hal *ah)
}
ah->ah_config.intr_mitigation = 0;
+
+ /*
+ * We need this for PCI devices only (Cardbus, PCI, miniPCI)
+ * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
+ * This means we use it for all AR5416 devices, and the few
+ * minor PCI AR9280 devices out there.
+ *
+ * Serialization is required because these devices do not handle
+ * well the case of two concurrent reads/writes due to the latency
+ * involved. During one read/write another read/write can be issued
+ * on another CPU while the previous read/write may still be working
+ * on our hardware, if we hit this case the hardware poops in a loop.
+ * We prevent this by serializing reads and writes.
+ *
+ * This issue is not present on PCI-Express devices or pre-AR5416
+ * devices (legacy, 802.11abg).
+ */
+ if (num_possible_cpus() > 1)
+ ah->ah_config.serialize_regmode = SER_REG_MODE_AUTO;
}
static void ath9k_hw_override_ini(struct ath_hal *ah,
@@ -3292,7 +3311,8 @@ static struct ath_hal *ath9k_hw_do_attach(u16 devid,
}
if (ah->ah_config.serialize_regmode == SER_REG_MODE_AUTO) {
- if (ah->ah_macVersion == AR_SREV_VERSION_5416_PCI) {
+ if (ah->ah_macVersion == AR_SREV_VERSION_5416_PCI ||
+ (AR_SREV_9280(ah) && !ah->ah_isPciExpress)) {
ah->ah_config.serialize_regmode =
SER_REG_MODE_ON;
} else {
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index 2fabcf8..5123b9b 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -51,7 +51,7 @@ static int b43_plcp_get_bitrate_idx_cck(struct b43_plcp_hdr6 *plcp)
}
/* Extract the bitrate index out of an OFDM PLCP header. */
-static u8 b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy)
+static int b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy)
{
int base = aphy ? 0 : 4;
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 52a8c97..f57b93e 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1862,12 +1862,14 @@ iscsi_pool_init(struct iscsi_pool *q, int max, void ***items, int item_size)
num_arrays++;
q->pool = kzalloc(num_arrays * max * sizeof(void*), GFP_KERNEL);
if (q->pool == NULL)
- goto enomem;
+ return -ENOMEM;
q->queue = kfifo_init((void*)q->pool, max * sizeof(void*),
GFP_KERNEL, NULL);
- if (q->queue == ERR_PTR(-ENOMEM))
+ if (IS_ERR(q->queue)) {
+ q->queue = NULL;
goto enomem;
+ }
for (i = 0; i < max; i++) {
q->pool[i] = kzalloc(item_size, GFP_KERNEL);
@@ -1897,8 +1899,7 @@ void iscsi_pool_free(struct iscsi_pool *q)
for (i = 0; i < q->max; i++)
kfree(q->pool[i]);
- if (q->pool)
- kfree(q->pool);
+ kfree(q->pool);
kfree(q->queue);
}
EXPORT_SYMBOL_GPL(iscsi_pool_free);
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 5103855..0bdeed3 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -101,6 +101,7 @@ static int scatter_elem_sz_prev = SG_SCATTER_SZ;
#define SG_SECTOR_MSK (SG_SECTOR_SZ - 1)
static int sg_add(struct device *, struct class_interface *);
+static void sg_device_destroy(struct kref *kref);
static void sg_remove(struct device *, struct class_interface *);
static DEFINE_IDR(sg_index_idr);
@@ -137,6 +138,7 @@ typedef struct sg_request { /* SG_MAX_QUEUE requests outstanding per file */
volatile char done; /* 0->before bh, 1->before read, 2->read */
struct request *rq;
struct bio *bio;
+ struct execute_work ew;
} Sg_request;
typedef struct sg_fd { /* holds the state of a file descriptor */
@@ -158,6 +160,8 @@ typedef struct sg_fd { /* holds the state of a file descriptor */
char next_cmd_len; /* 0 -> automatic (def), >0 -> use on next write() */
char keep_orphan; /* 0 -> drop orphan (def), 1 -> keep for read() */
char mmap_called; /* 0 -> mmap() never called on this fd */
+ struct kref f_ref;
+ struct execute_work ew;
} Sg_fd;
typedef struct sg_device { /* holds the state of each scsi generic device */
@@ -171,6 +175,7 @@ typedef struct sg_device { /* holds the state of each scsi generic device */
char sgdebug; /* 0->off, 1->sense, 9->dump dev, 10-> all devs */
struct gendisk *disk;
struct cdev * cdev; /* char_dev [sysfs: /sys/cdev/major/sg<n>] */
+ struct kref d_ref;
} Sg_device;
static int sg_fasync(int fd, struct file *filp, int mode);
@@ -185,7 +190,7 @@ static ssize_t sg_new_read(Sg_fd * sfp, char __user *buf, size_t count,
Sg_request * srp);
static ssize_t sg_new_write(Sg_fd *sfp, struct file *file,
const char __user *buf, size_t count, int blocking,
- int read_only, Sg_request **o_srp);
+ int read_only, int sg_io_owned, Sg_request **o_srp);
static int sg_common_write(Sg_fd * sfp, Sg_request * srp,
unsigned char *cmnd, int timeout, int blocking);
static int sg_read_oxfer(Sg_request * srp, char __user *outp, int num_read_xfer);
@@ -194,13 +199,14 @@ static void sg_build_reserve(Sg_fd * sfp, int req_size);
static void sg_link_reserve(Sg_fd * sfp, Sg_request * srp, int size);
static void sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp);
static Sg_fd *sg_add_sfp(Sg_device * sdp, int dev);
-static int sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp);
-static void __sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp);
+static void sg_remove_sfp(struct kref *);
static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id);
static Sg_request *sg_add_request(Sg_fd * sfp);
static int sg_remove_request(Sg_fd * sfp, Sg_request * srp);
static int sg_res_in_use(Sg_fd * sfp);
+static Sg_device *sg_lookup_dev(int dev);
static Sg_device *sg_get_dev(int dev);
+static void sg_put_dev(Sg_device *sdp);
#ifdef CONFIG_SCSI_PROC_FS
static int sg_last_dev(void);
#endif
@@ -237,22 +243,17 @@ sg_open(struct inode *inode, struct file *filp)
nonseekable_open(inode, filp);
SCSI_LOG_TIMEOUT(3, printk("sg_open: dev=%d, flags=0x%x\n", dev, flags));
sdp = sg_get_dev(dev);
- if ((!sdp) || (!sdp->device)) {
- unlock_kernel();
- return -ENXIO;
- }
- if (sdp->detached) {
- unlock_kernel();
- return -ENODEV;
+ if (IS_ERR(sdp)) {
+ retval = PTR_ERR(sdp);
+ sdp = NULL;
+ goto sg_put;
}
/* This driver's module count bumped by fops_get in <linux/fs.h> */
/* Prevent the device driver from vanishing while we sleep */
retval = scsi_device_get(sdp->device);
- if (retval) {
- unlock_kernel();
- return retval;
- }
+ if (retval)
+ goto sg_put;
if (!((flags & O_NONBLOCK) ||
scsi_block_when_processing_errors(sdp->device))) {
@@ -303,16 +304,20 @@ sg_open(struct inode *inode, struct file *filp)
if ((sfp = sg_add_sfp(sdp, dev)))
filp->private_data = sfp;
else {
- if (flags & O_EXCL)
+ if (flags & O_EXCL) {
sdp->exclude = 0; /* undo if error */
+ wake_up_interruptible(&sdp->o_excl_wait);
+ }
retval = -ENOMEM;
goto error_out;
}
- unlock_kernel();
- return 0;
-
- error_out:
- scsi_device_put(sdp->device);
+ retval = 0;
+error_out:
+ if (retval)
+ scsi_device_put(sdp->device);
+sg_put:
+ if (sdp)
+ sg_put_dev(sdp);
unlock_kernel();
return retval;
}
@@ -327,13 +332,13 @@ sg_release(struct inode *inode, struct file *filp)
if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
return -ENXIO;
SCSI_LOG_TIMEOUT(3, printk("sg_release: %s\n", sdp->disk->disk_name));
- if (0 == sg_remove_sfp(sdp, sfp)) { /* Returns 1 when sdp gone */
- if (!sdp->detached) {
- scsi_device_put(sdp->device);
- }
- sdp->exclude = 0;
- wake_up_interruptible(&sdp->o_excl_wait);
- }
+
+ sfp->closed = 1;
+
+ sdp->exclude = 0;
+ wake_up_interruptible(&sdp->o_excl_wait);
+
+ kref_put(&sfp->f_ref, sg_remove_sfp);
return 0;
}
@@ -557,7 +562,8 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
return -EFAULT;
blocking = !(filp->f_flags & O_NONBLOCK);
if (old_hdr.reply_len < 0)
- return sg_new_write(sfp, filp, buf, count, blocking, 0, NULL);
+ return sg_new_write(sfp, filp, buf, count,
+ blocking, 0, 0, NULL);
if (count < (SZ_SG_HEADER + 6))
return -EIO; /* The minimum scsi command length is 6 bytes. */
@@ -638,7 +644,7 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
static ssize_t
sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf,
- size_t count, int blocking, int read_only,
+ size_t count, int blocking, int read_only, int sg_io_owned,
Sg_request **o_srp)
{
int k;
@@ -658,6 +664,7 @@ sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf,
SCSI_LOG_TIMEOUT(1, printk("sg_new_write: queue full\n"));
return -EDOM;
}
+ srp->sg_io_owned = sg_io_owned;
hp = &srp->header;
if (__copy_from_user(hp, buf, SZ_SG_IO_HDR)) {
sg_remove_request(sfp, srp);
@@ -755,24 +762,13 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
hp->duration = jiffies_to_msecs(jiffies);
srp->rq->timeout = timeout;
+ kref_get(&sfp->f_ref); /* sg_rq_end_io() does kref_put(). */
blk_execute_rq_nowait(sdp->device->request_queue, sdp->disk,
srp->rq, 1, sg_rq_end_io);
return 0;
}
static int
-sg_srp_done(Sg_request *srp, Sg_fd *sfp)
-{
- unsigned long iflags;
- int done;
-
- read_lock_irqsave(&sfp->rq_list_lock, iflags);
- done = srp->done;
- read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
- return done;
-}
-
-static int
sg_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd_in, unsigned long arg)
{
@@ -804,27 +800,26 @@ sg_ioctl(struct inode *inode, struct file *filp,
return -EFAULT;
result =
sg_new_write(sfp, filp, p, SZ_SG_IO_HDR,
- blocking, read_only, &srp);
+ blocking, read_only, 1, &srp);
if (result < 0)
return result;
- srp->sg_io_owned = 1;
while (1) {
result = 0; /* following macro to beat race condition */
__wait_event_interruptible(sfp->read_wait,
- (sdp->detached || sfp->closed || sg_srp_done(srp, sfp)),
- result);
+ (srp->done || sdp->detached),
+ result);
if (sdp->detached)
return -ENODEV;
- if (sfp->closed)
- return 0; /* request packet dropped already */
- if (0 == result)
+ write_lock_irq(&sfp->rq_list_lock);
+ if (srp->done) {
+ srp->done = 2;
+ write_unlock_irq(&sfp->rq_list_lock);
break;
+ }
srp->orphan = 1;
+ write_unlock_irq(&sfp->rq_list_lock);
return result; /* -ERESTARTSYS because signal hit process */
}
- write_lock_irqsave(&sfp->rq_list_lock, iflags);
- srp->done = 2;
- write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
result = sg_new_read(sfp, p, SZ_SG_IO_HDR, srp);
return (result < 0) ? result : 0;
}
@@ -1240,6 +1235,15 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
return 0;
}
+static void sg_rq_end_io_usercontext(struct work_struct *work)
+{
+ struct sg_request *srp = container_of(work, struct sg_request, ew.work);
+ struct sg_fd *sfp = srp->parentfp;
+
+ sg_finish_rem_req(srp);
+ kref_put(&sfp->f_ref, sg_remove_sfp);
+}
+
/*
* This function is a "bottom half" handler that is called by the mid
* level when a command is completed (or has failed).
@@ -1247,24 +1251,23 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
static void sg_rq_end_io(struct request *rq, int uptodate)
{
struct sg_request *srp = rq->end_io_data;
- Sg_device *sdp = NULL;
+ Sg_device *sdp;
Sg_fd *sfp;
unsigned long iflags;
unsigned int ms;
char *sense;
- int result, resid;
+ int result, resid, done = 1;
- if (NULL == srp) {
- printk(KERN_ERR "sg_cmd_done: NULL request\n");
+ if (WARN_ON(srp->done != 0))
return;
- }
+
sfp = srp->parentfp;
- if (sfp)
- sdp = sfp->parentdp;
- if ((NULL == sdp) || sdp->detached) {
- printk(KERN_INFO "sg_cmd_done: device detached\n");
+ if (WARN_ON(sfp == NULL))
return;
- }
+
+ sdp = sfp->parentdp;
+ if (unlikely(sdp->detached))
+ printk(KERN_INFO "sg_rq_end_io: device detached\n");
sense = rq->sense;
result = rq->errors;
@@ -1303,33 +1306,25 @@ static void sg_rq_end_io(struct request *rq, int uptodate)
}
/* Rely on write phase to clean out srp status values, so no "else" */
- if (sfp->closed) { /* whoops this fd already released, cleanup */
- SCSI_LOG_TIMEOUT(1, printk("sg_cmd_done: already closed, freeing ...\n"));
- sg_finish_rem_req(srp);
- srp = NULL;
- if (NULL == sfp->headrp) {
- SCSI_LOG_TIMEOUT(1, printk("sg_cmd_done: already closed, final cleanup\n"));
- if (0 == sg_remove_sfp(sdp, sfp)) { /* device still present */
- scsi_device_put(sdp->device);
- }
- sfp = NULL;
- }
- } else if (srp && srp->orphan) {
+ write_lock_irqsave(&sfp->rq_list_lock, iflags);
+ if (unlikely(srp->orphan)) {
if (sfp->keep_orphan)
srp->sg_io_owned = 0;
- else {
- sg_finish_rem_req(srp);
- srp = NULL;
- }
+ else
+ done = 0;
}
- if (sfp && srp) {
- /* Now wake up any sg_read() that is waiting for this packet. */
- kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN);
- write_lock_irqsave(&sfp->rq_list_lock, iflags);
- srp->done = 1;
+ srp->done = done;
+ write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
+
+ if (likely(done)) {
+ /* Now wake up any sg_read() that is waiting for this
+ * packet.
+ */
wake_up_interruptible(&sfp->read_wait);
- write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
- }
+ kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN);
+ kref_put(&sfp->f_ref, sg_remove_sfp);
+ } else
+ execute_in_process_context(sg_rq_end_io_usercontext, &srp->ew);
}
static struct file_operations sg_fops = {
@@ -1364,17 +1359,18 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp)
printk(KERN_WARNING "kmalloc Sg_device failure\n");
return ERR_PTR(-ENOMEM);
}
- error = -ENOMEM;
+
if (!idr_pre_get(&sg_index_idr, GFP_KERNEL)) {
printk(KERN_WARNING "idr expansion Sg_device failure\n");
+ error = -ENOMEM;
goto out;
}
write_lock_irqsave(&sg_index_lock, iflags);
- error = idr_get_new(&sg_index_idr, sdp, &k);
- write_unlock_irqrestore(&sg_index_lock, iflags);
+ error = idr_get_new(&sg_index_idr, sdp, &k);
if (error) {
+ write_unlock_irqrestore(&sg_index_lock, iflags);
printk(KERN_WARNING "idr allocation Sg_device failure: %d\n",
error);
goto out;
@@ -1391,6 +1387,9 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp)
init_waitqueue_head(&sdp->o_excl_wait);
sdp->sg_tablesize = min(q->max_hw_segments, q->max_phys_segments);
sdp->index = k;
+ kref_init(&sdp->d_ref);
+
+ write_unlock_irqrestore(&sg_index_lock, iflags);
error = 0;
out:
@@ -1401,6 +1400,8 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp)
return sdp;
overflow:
+ idr_remove(&sg_index_idr, k);
+ write_unlock_irqrestore(&sg_index_lock, iflags);
sdev_printk(KERN_WARNING, scsidp,
"Unable to attach sg device type=%d, minor "
"number exceeds %d\n", scsidp->type, SG_MAX_DEVS - 1);
@@ -1488,49 +1489,46 @@ out:
return error;
}
-static void
-sg_remove(struct device *cl_dev, struct class_interface *cl_intf)
+static void sg_device_destroy(struct kref *kref)
+{
+ struct sg_device *sdp = container_of(kref, struct sg_device, d_ref);
+ unsigned long flags;
+
+ /* CAUTION! Note that the device can still be found via idr_find()
+ * even though the refcount is 0. Therefore, do idr_remove() BEFORE
+ * any other cleanup.
+ */
+
+ write_lock_irqsave(&sg_index_lock, flags);
+ idr_remove(&sg_index_idr, sdp->index);
+ write_unlock_irqrestore(&sg_index_lock, flags);
+
+ SCSI_LOG_TIMEOUT(3,
+ printk("sg_device_destroy: %s\n",
+ sdp->disk->disk_name));
+
+ put_disk(sdp->disk);
+ kfree(sdp);
+}
+
+static void sg_remove(struct device *cl_dev, struct class_interface *cl_intf)
{
struct scsi_device *scsidp = to_scsi_device(cl_dev->parent);
Sg_device *sdp = dev_get_drvdata(cl_dev);
unsigned long iflags;
Sg_fd *sfp;
- Sg_fd *tsfp;
- Sg_request *srp;
- Sg_request *tsrp;
- int delay;
- if (!sdp)
+ if (!sdp || sdp->detached)
return;
- delay = 0;
+ SCSI_LOG_TIMEOUT(3, printk("sg_remove: %s\n", sdp->disk->disk_name));
+
+ /* Need a write lock to set sdp->detached. */
write_lock_irqsave(&sg_index_lock, iflags);
- if (sdp->headfp) {
- sdp->detached = 1;
- for (sfp = sdp->headfp; sfp; sfp = tsfp) {
- tsfp = sfp->nextfp;
- for (srp = sfp->headrp; srp; srp = tsrp) {
- tsrp = srp->nextrp;
- if (sfp->closed || (0 == sg_srp_done(srp, sfp)))
- sg_finish_rem_req(srp);
- }
- if (sfp->closed) {
- scsi_device_put(sdp->device);
- __sg_remove_sfp(sdp, sfp);
- } else {
- delay = 1;
- wake_up_interruptible(&sfp->read_wait);
- kill_fasync(&sfp->async_qp, SIGPOLL,
- POLL_HUP);
- }
- }
- SCSI_LOG_TIMEOUT(3, printk("sg_remove: dev=%d, dirty\n", sdp->index));
- if (NULL == sdp->headfp) {
- idr_remove(&sg_index_idr, sdp->index);
- }
- } else { /* nothing active, simple case */
- SCSI_LOG_TIMEOUT(3, printk("sg_remove: dev=%d\n", sdp->index));
- idr_remove(&sg_index_idr, sdp->index);
+ sdp->detached = 1;
+ for (sfp = sdp->headfp; sfp; sfp = sfp->nextfp) {
+ wake_up_interruptible(&sfp->read_wait);
+ kill_fasync(&sfp->async_qp, SIGPOLL, POLL_HUP);
}
write_unlock_irqrestore(&sg_index_lock, iflags);
@@ -1538,13 +1536,8 @@ sg_remove(struct device *cl_dev, struct class_interface *cl_intf)
device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, sdp->index));
cdev_del(sdp->cdev);
sdp->cdev = NULL;
- put_disk(sdp->disk);
- sdp->disk = NULL;
- if (NULL == sdp->headfp)
- kfree(sdp);
- if (delay)
- msleep(10); /* dirty detach so delay device destruction */
+ sg_put_dev(sdp);
}
module_param_named(scatter_elem_sz, scatter_elem_sz, int, S_IRUGO | S_IWUSR);
@@ -1939,22 +1932,6 @@ sg_get_rq_mark(Sg_fd * sfp, int pack_id)
return resp;
}
-#ifdef CONFIG_SCSI_PROC_FS
-static Sg_request *
-sg_get_nth_request(Sg_fd * sfp, int nth)
-{
- Sg_request *resp;
- unsigned long iflags;
- int k;
-
- read_lock_irqsave(&sfp->rq_list_lock, iflags);
- for (k = 0, resp = sfp->headrp; resp && (k < nth);
- ++k, resp = resp->nextrp) ;
- read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
- return resp;
-}
-#endif
-
/* always adds to end of list */
static Sg_request *
sg_add_request(Sg_fd * sfp)
@@ -2030,22 +2007,6 @@ sg_remove_request(Sg_fd * sfp, Sg_request * srp)
return res;
}
-#ifdef CONFIG_SCSI_PROC_FS
-static Sg_fd *
-sg_get_nth_sfp(Sg_device * sdp, int nth)
-{
- Sg_fd *resp;
- unsigned long iflags;
- int k;
-
- read_lock_irqsave(&sg_index_lock, iflags);
- for (k = 0, resp = sdp->headfp; resp && (k < nth);
- ++k, resp = resp->nextfp) ;
- read_unlock_irqrestore(&sg_index_lock, iflags);
- return resp;
-}
-#endif
-
static Sg_fd *
sg_add_sfp(Sg_device * sdp, int dev)
{
@@ -2060,6 +2021,7 @@ sg_add_sfp(Sg_device * sdp, int dev)
init_waitqueue_head(&sfp->read_wait);
rwlock_init(&sfp->rq_list_lock);
+ kref_init(&sfp->f_ref);
sfp->timeout = SG_DEFAULT_TIMEOUT;
sfp->timeout_user = SG_DEFAULT_TIMEOUT_USER;
sfp->force_packid = SG_DEF_FORCE_PACK_ID;
@@ -2087,15 +2049,54 @@ sg_add_sfp(Sg_device * sdp, int dev)
sg_build_reserve(sfp, bufflen);
SCSI_LOG_TIMEOUT(3, printk("sg_add_sfp: bufflen=%d, k_use_sg=%d\n",
sfp->reserve.bufflen, sfp->reserve.k_use_sg));
+
+ kref_get(&sdp->d_ref);
+ __module_get(THIS_MODULE);
return sfp;
}
-static void
-__sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp)
+static void sg_remove_sfp_usercontext(struct work_struct *work)
{
+ struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work);
+ struct sg_device *sdp = sfp->parentdp;
+
+ /* Cleanup any responses which were never read(). */
+ while (sfp->headrp)
+ sg_finish_rem_req(sfp->headrp);
+
+ if (sfp->reserve.bufflen > 0) {
+ SCSI_LOG_TIMEOUT(6,
+ printk("sg_remove_sfp: bufflen=%d, k_use_sg=%d\n",
+ (int) sfp->reserve.bufflen,
+ (int) sfp->reserve.k_use_sg));
+ sg_remove_scat(&sfp->reserve);
+ }
+
+ SCSI_LOG_TIMEOUT(6,
+ printk("sg_remove_sfp: %s, sfp=0x%p\n",
+ sdp->disk->disk_name,
+ sfp));
+ kfree(sfp);
+
+ scsi_device_put(sdp->device);
+ sg_put_dev(sdp);
+ module_put(THIS_MODULE);
+}
+
+static void sg_remove_sfp(struct kref *kref)
+{
+ struct sg_fd *sfp = container_of(kref, struct sg_fd, f_ref);
+ struct sg_device *sdp = sfp->parentdp;
Sg_fd *fp;
Sg_fd *prev_fp;
+ unsigned long iflags;
+ /* CAUTION! Note that sfp can still be found by walking sdp->headfp
+ * even though the refcount is now 0. Therefore, unlink sfp from
+ * sdp->headfp BEFORE doing any other cleanup.
+ */
+
+ write_lock_irqsave(&sg_index_lock, iflags);
prev_fp = sdp->headfp;
if (sfp == prev_fp)
sdp->headfp = prev_fp->nextfp;
@@ -2108,54 +2109,10 @@ __sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp)
prev_fp = fp;
}
}
- if (sfp->reserve.bufflen > 0) {
- SCSI_LOG_TIMEOUT(6,
- printk("__sg_remove_sfp: bufflen=%d, k_use_sg=%d\n",
- (int) sfp->reserve.bufflen, (int) sfp->reserve.k_use_sg));
- sg_remove_scat(&sfp->reserve);
- }
- sfp->parentdp = NULL;
- SCSI_LOG_TIMEOUT(6, printk("__sg_remove_sfp: sfp=0x%p\n", sfp));
- kfree(sfp);
-}
-
-/* Returns 0 in normal case, 1 when detached and sdp object removed */
-static int
-sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp)
-{
- Sg_request *srp;
- Sg_request *tsrp;
- int dirty = 0;
- int res = 0;
-
- for (srp = sfp->headrp; srp; srp = tsrp) {
- tsrp = srp->nextrp;
- if (sg_srp_done(srp, sfp))
- sg_finish_rem_req(srp);
- else
- ++dirty;
- }
- if (0 == dirty) {
- unsigned long iflags;
+ write_unlock_irqrestore(&sg_index_lock, iflags);
+ wake_up_interruptible(&sdp->o_excl_wait);
- write_lock_irqsave(&sg_index_lock, iflags);
- __sg_remove_sfp(sdp, sfp);
- if (sdp->detached && (NULL == sdp->headfp)) {
- idr_remove(&sg_index_idr, sdp->index);
- kfree(sdp);
- res = 1;
- }
- write_unlock_irqrestore(&sg_index_lock, iflags);
- } else {
- /* MOD_INC's to inhibit unloading sg and associated adapter driver */
- /* only bump the access_count if we actually succeeded in
- * throwing another counter on the host module */
- scsi_device_get(sdp->device); /* XXX: retval ignored? */
- sfp->closed = 1; /* flag dirty state on this fd */
- SCSI_LOG_TIMEOUT(1, printk("sg_remove_sfp: worrisome, %d writes pending\n",
- dirty));
- }
- return res;
+ execute_in_process_context(sg_remove_sfp_usercontext, &sfp->ew);
}
static int
@@ -2197,19 +2154,38 @@ sg_last_dev(void)
}
#endif
-static Sg_device *
-sg_get_dev(int dev)
+/* must be called with sg_index_lock held */
+static Sg_device *sg_lookup_dev(int dev)
{
- Sg_device *sdp;
- unsigned long iflags;
+ return idr_find(&sg_index_idr, dev);
+}
- read_lock_irqsave(&sg_index_lock, iflags);
- sdp = idr_find(&sg_index_idr, dev);
- read_unlock_irqrestore(&sg_index_lock, iflags);
+static Sg_device *sg_get_dev(int dev)
+{
+ struct sg_device *sdp;
+ unsigned long flags;
+
+ read_lock_irqsave(&sg_index_lock, flags);
+ sdp = sg_lookup_dev(dev);
+ if (!sdp)
+ sdp = ERR_PTR(-ENXIO);
+ else if (sdp->detached) {
+ /* If sdp->detached, then the refcount may already be 0, in
+ * which case it would be a bug to do kref_get().
+ */
+ sdp = ERR_PTR(-ENODEV);
+ } else
+ kref_get(&sdp->d_ref);
+ read_unlock_irqrestore(&sg_index_lock, flags);
return sdp;
}
+static void sg_put_dev(struct sg_device *sdp)
+{
+ kref_put(&sdp->d_ref, sg_device_destroy);
+}
+
#ifdef CONFIG_SCSI_PROC_FS
static struct proc_dir_entry *sg_proc_sgp = NULL;
@@ -2466,8 +2442,10 @@ static int sg_proc_seq_show_dev(struct seq_file *s, void *v)
struct sg_proc_deviter * it = (struct sg_proc_deviter *) v;
Sg_device *sdp;
struct scsi_device *scsidp;
+ unsigned long iflags;
- sdp = it ? sg_get_dev(it->index) : NULL;
+ read_lock_irqsave(&sg_index_lock, iflags);
+ sdp = it ? sg_lookup_dev(it->index) : NULL;
if (sdp && (scsidp = sdp->device) && (!sdp->detached))
seq_printf(s, "%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",
scsidp->host->host_no, scsidp->channel,
@@ -2478,6 +2456,7 @@ static int sg_proc_seq_show_dev(struct seq_file *s, void *v)
(int) scsi_device_online(scsidp));
else
seq_printf(s, "-1\t-1\t-1\t-1\t-1\t-1\t-1\t-1\t-1\n");
+ read_unlock_irqrestore(&sg_index_lock, iflags);
return 0;
}
@@ -2491,16 +2470,20 @@ static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v)
struct sg_proc_deviter * it = (struct sg_proc_deviter *) v;
Sg_device *sdp;
struct scsi_device *scsidp;
+ unsigned long iflags;
- sdp = it ? sg_get_dev(it->index) : NULL;
+ read_lock_irqsave(&sg_index_lock, iflags);
+ sdp = it ? sg_lookup_dev(it->index) : NULL;
if (sdp && (scsidp = sdp->device) && (!sdp->detached))
seq_printf(s, "%8.8s\t%16.16s\t%4.4s\n",
scsidp->vendor, scsidp->model, scsidp->rev);
else
seq_printf(s, "<no active device>\n");
+ read_unlock_irqrestore(&sg_index_lock, iflags);
return 0;
}
+/* must be called while holding sg_index_lock */
static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
{
int k, m, new_interface, blen, usg;
@@ -2510,7 +2493,8 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
const char * cp;
unsigned int ms;
- for (k = 0; (fp = sg_get_nth_sfp(sdp, k)); ++k) {
+ for (k = 0, fp = sdp->headfp; fp != NULL; ++k, fp = fp->nextfp) {
+ read_lock(&fp->rq_list_lock); /* irqs already disabled */
seq_printf(s, " FD(%d): timeout=%dms bufflen=%d "
"(res)sgat=%d low_dma=%d\n", k + 1,
jiffies_to_msecs(fp->timeout),
@@ -2520,7 +2504,9 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
seq_printf(s, " cmd_q=%d f_packid=%d k_orphan=%d closed=%d\n",
(int) fp->cmd_q, (int) fp->force_packid,
(int) fp->keep_orphan, (int) fp->closed);
- for (m = 0; (srp = sg_get_nth_request(fp, m)); ++m) {
+ for (m = 0, srp = fp->headrp;
+ srp != NULL;
+ ++m, srp = srp->nextrp) {
hp = &srp->header;
new_interface = (hp->interface_id == '\0') ? 0 : 1;
if (srp->res_used) {
@@ -2557,6 +2543,7 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
}
if (0 == m)
seq_printf(s, " No requests active\n");
+ read_unlock(&fp->rq_list_lock);
}
}
@@ -2569,39 +2556,34 @@ static int sg_proc_seq_show_debug(struct seq_file *s, void *v)
{
struct sg_proc_deviter * it = (struct sg_proc_deviter *) v;
Sg_device *sdp;
+ unsigned long iflags;
if (it && (0 == it->index)) {
seq_printf(s, "max_active_device=%d(origin 1)\n",
(int)it->max);
seq_printf(s, " def_reserved_size=%d\n", sg_big_buff);
}
- sdp = it ? sg_get_dev(it->index) : NULL;
- if (sdp) {
- struct scsi_device *scsidp = sdp->device;
- if (NULL == scsidp) {
- seq_printf(s, "device %d detached ??\n",
- (int)it->index);
- return 0;
- }
+ read_lock_irqsave(&sg_index_lock, iflags);
+ sdp = it ? sg_lookup_dev(it->index) : NULL;
+ if (sdp && sdp->headfp) {
+ struct scsi_device *scsidp = sdp->device;
- if (sg_get_nth_sfp(sdp, 0)) {
- seq_printf(s, " >>> device=%s ",
- sdp->disk->disk_name);
- if (sdp->detached)
- seq_printf(s, "detached pending close ");
- else
- seq_printf
- (s, "scsi%d chan=%d id=%d lun=%d em=%d",
- scsidp->host->host_no,
- scsidp->channel, scsidp->id,
- scsidp->lun,
- scsidp->host->hostt->emulated);
- seq_printf(s, " sg_tablesize=%d excl=%d\n",
- sdp->sg_tablesize, sdp->exclude);
- }
+ seq_printf(s, " >>> device=%s ", sdp->disk->disk_name);
+ if (sdp->detached)
+ seq_printf(s, "detached pending close ");
+ else
+ seq_printf
+ (s, "scsi%d chan=%d id=%d lun=%d em=%d",
+ scsidp->host->host_no,
+ scsidp->channel, scsidp->id,
+ scsidp->lun,
+ scsidp->host->hostt->emulated);
+ seq_printf(s, " sg_tablesize=%d excl=%d\n",
+ sdp->sg_tablesize, sdp->exclude);
sg_proc_debug_helper(s, sdp);
}
+ read_unlock_irqrestore(&sg_index_lock, iflags);
return 0;
}
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 3734dc9..de9f5cb 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -660,7 +660,7 @@ int spi_write_then_read(struct spi_device *spi,
int status;
struct spi_message message;
- struct spi_transfer x;
+ struct spi_transfer x[2];
u8 *local_buf;
/* Use preallocated DMA-safe buffer. We can't avoid copying here,
@@ -671,9 +671,15 @@ int spi_write_then_read(struct spi_device *spi,
return -EINVAL;
spi_message_init(&message);
- memset(&x, 0, sizeof x);
- x.len = n_tx + n_rx;
- spi_message_add_tail(&x, &message);
+ memset(x, 0, sizeof x);
+ if (n_tx) {
+ x[0].len = n_tx;
+ spi_message_add_tail(&x[0], &message);
+ }
+ if (n_rx) {
+ x[1].len = n_rx;
+ spi_message_add_tail(&x[1], &message);
+ }
/* ... unless someone else is using the pre-allocated buffer */
if (!mutex_trylock(&lock)) {
@@ -684,15 +690,15 @@ int spi_write_then_read(struct spi_device *spi,
local_buf = buf;
memcpy(local_buf, txbuf, n_tx);
- x.tx_buf = local_buf;
- x.rx_buf = local_buf;
+ x[0].tx_buf = local_buf;
+ x[1].rx_buf = local_buf + n_tx;
/* do the i/o */
status = spi_sync(spi, &message);
if (status == 0)
- memcpy(rxbuf, x.rx_buf + n_tx, n_rx);
+ memcpy(rxbuf, x[1].rx_buf, n_rx);
- if (x.tx_buf == buf)
+ if (x[0].tx_buf == buf)
mutex_unlock(&lock);
else
kfree(local_buf);
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 5a8ecc0..874d6a0 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -652,7 +652,7 @@ next_desc:
iface = &intf->altsetting[0];
ep = &iface->endpoint[0].desc;
- if (!usb_endpoint_is_int_in(ep)) {
+ if (!ep || !usb_endpoint_is_int_in(ep)) {
rv = -EINVAL;
goto err;
}
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index e00127c..aaf6ea5 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1637,7 +1637,8 @@ free_interfaces:
}
kfree(new_interfaces);
- if (cp->string == NULL)
+ if (cp->string == NULL &&
+ !(dev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS))
cp->string = usb_cache_string(dev, cp->desc.iConfiguration);
/* Now that all the interfaces are set up, register them
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index c070b34..ab93918 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -54,6 +54,10 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
+ /* Saitek Cyborg Gold Joystick */
+ { USB_DEVICE(0x06a3, 0x0006), .driver_info =
+ USB_QUIRK_CONFIG_INTF_STRINGS },
+
/* M-Systems Flash Disk Pioneers */
{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 4fb65fd..813b337 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/usb.h>
+#include <linux/usb/quirks.h>
#include "usb.h"
/* Active configuration fields */
@@ -847,7 +848,8 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf)
* and missing in others. Hence its attribute cannot be created
* before the uevent is broadcast.
*/
- if (alt->string == NULL)
+ if (alt->string == NULL &&
+ !(udev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS))
alt->string = usb_cache_string(udev, alt->desc.iInterface);
if (alt->string)
retval = device_create_file(&intf->dev, &dev_attr_interface);
diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c
index 3a8bb53..fd7b356 100644
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -437,7 +437,7 @@ invalid:
DBG(cdev, "rndis req%02x.%02x v%04x i%04x l%d\n",
ctrl->bRequestType, ctrl->bRequest,
w_value, w_index, w_length);
- req->zero = 0;
+ req->zero = (value < w_length);
req->length = value;
value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
if (value < 0)
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 66948b7..5ded63b 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -175,12 +175,6 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof p->bus_info);
}
-static u32 eth_get_link(struct net_device *net)
-{
- struct eth_dev *dev = netdev_priv(net);
- return dev->gadget->speed != USB_SPEED_UNKNOWN;
-}
-
/* REVISIT can also support:
* - WOL (by tracking suspends and issuing remote wakeup)
* - msglevel (implies updated messaging)
@@ -189,7 +183,7 @@ static u32 eth_get_link(struct net_device *net)
static struct ethtool_ops ops = {
.get_drvinfo = eth_get_drvinfo,
- .get_link = eth_get_link
+ .get_link = ethtool_op_get_link,
};
static void defer_kevent(struct eth_dev *dev, int flag)
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index ecc9b66..01132ac 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -333,12 +333,40 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
token = hc32_to_cpu(ehci, qtd->hw_token);
/* always clean up qtds the hc de-activated */
+ retry_xacterr:
if ((token & QTD_STS_ACTIVE) == 0) {
/* on STALL, error, and short reads this urb must
* complete and all its qtds must be recycled.
*/
if ((token & QTD_STS_HALT) != 0) {
+
+ /* retry transaction errors until we
+ * reach the software xacterr limit
+ */
+ if ((token & QTD_STS_XACT) &&
+ QTD_CERR(token) == 0 &&
+ --qh->xacterrs > 0 &&
+ !urb->unlinked) {
+ ehci_dbg(ehci,
+ "detected XactErr len %d/%d retry %d\n",
+ qtd->length - QTD_LENGTH(token), qtd->length,
+ QH_XACTERR_MAX - qh->xacterrs);
+
+ /* reset the token in the qtd and the
+ * qh overlay (which still contains
+ * the qtd) so that we pick up from
+ * where we left off
+ */
+ token &= ~QTD_STS_HALT;
+ token |= QTD_STS_ACTIVE |
+ (EHCI_TUNE_CERR << 10);
+ qtd->hw_token = cpu_to_hc32(ehci,
+ token);
+ wmb();
+ qh->hw_token = cpu_to_hc32(ehci, token);
+ goto retry_xacterr;
+ }
stopped = 1;
/* magic dummy for some short reads; qh won't advance.
@@ -421,6 +449,9 @@ halt:
/* remove qtd; it's recycled after possible urb completion */
list_del (&qtd->qtd_list);
last = qtd;
+
+ /* reinit the xacterr counter for the next qtd */
+ qh->xacterrs = QH_XACTERR_MAX;
}
/* last urb's completion might still need calling */
@@ -862,6 +893,7 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
head->qh_next.qh = qh;
head->hw_next = dma;
+ qh->xacterrs = QH_XACTERR_MAX;
qh->qh_state = QH_STATE_LINKED;
/* qtd completions reported later by interrupt */
}
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index fe97688..a8c201a 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -366,6 +366,9 @@ struct ehci_qh {
#define QH_STATE_UNLINK_WAIT 4 /* LINKED and on reclaim q */
#define QH_STATE_COMPLETING 5 /* don't touch token.HALT */
+ u8 xacterrs; /* XactErr retry counter */
+#define QH_XACTERR_MAX 32 /* XactErr retry limit */
+
/* periodic schedule info */
u8 usecs; /* intr bandwidth */
u8 gap_uf; /* uframes split/csplit gap */
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index aa21adb..a0fbe1c 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -665,6 +665,7 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(DE_VID, WHT_PID) },
{ USB_DEVICE(ADI_VID, ADI_GNICE_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
{ }, /* Optional parameter entry */
{ } /* Terminating entry */
};
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 171a97c..27fe244 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -901,6 +901,13 @@
#define ADI_GNICE_PID 0xF000
/*
+ * JETI SPECTROMETER SPECBOS 1201
+ * http://www.jeti.com/products/sys/scb/scb1201.php
+ */
+#define JETI_VID 0x0c6c
+#define JETI_SPC1201_PID 0x04b2
+
+/*
* BmRequestType: 1100 0000b
* bRequest: FTDI_E2_READ
* wValue: 0
diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index 898e67d..9466a99 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -133,19 +133,18 @@ void cypress_atacb_passthrough(struct scsi_cmnd *srb, struct us_data *us)
/* build the command for
* reading the ATA registers */
- scsi_eh_prep_cmnd(srb, &ses, NULL, 0, 0);
- srb->sdb.length = sizeof(regs);
- sg_init_one(&ses.sense_sgl, regs, srb->sdb.length);
- srb->sdb.table.sgl = &ses.sense_sgl;
- srb->sc_data_direction = DMA_FROM_DEVICE;
- srb->sdb.table.nents = 1;
+ scsi_eh_prep_cmnd(srb, &ses, NULL, 0, sizeof(regs));
+
/* we use the same command as before, but we set
* the read taskfile bit, for not executing atacb command,
* but reading register selected in srb->cmnd[4]
*/
+ srb->cmd_len = 16;
+ srb->cmnd = ses.cmnd;
srb->cmnd[2] = 1;
usb_stor_transparent_scsi_command(srb, us);
+ memcpy(regs, srb->sense_buffer, sizeof(regs));
tmp_result = srb->result;
scsi_eh_restore_cmnd(srb, &ses);
/* we fail to get registers, report invalid command */
@@ -162,8 +161,8 @@ void cypress_atacb_passthrough(struct scsi_cmnd *srb, struct us_data *us)
/* XXX we should generate sk, asc, ascq from status and error
* regs
- * (see 11.1 Error translation ATA device error to SCSI error map)
- * and ata_to_sense_error from libata.
+ * (see 11.1 Error translation ATA device error to SCSI error
+ * map, and ata_to_sense_error from libata.)
*/
/* Sense data is current and format is descriptor. */
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 8daaace..5f484ae 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -135,6 +135,12 @@ static int slave_configure(struct scsi_device *sdev)
if (sdev->request_queue->max_sectors > max_sectors)
blk_queue_max_sectors(sdev->request_queue,
max_sectors);
+ } else if (sdev->type == TYPE_TAPE) {
+ /* Tapes need much higher max_sector limits, so just
+ * raise it to the maximum possible (4 GB / 512) and
+ * let the queue segment size sort out the real limit.
+ */
+ blk_queue_max_sectors(sdev->request_queue, 0x7FFFFF);
}
/* We can't put these settings in slave_alloc() because that gets
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index f89549f..40dd32f 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1164,12 +1164,14 @@ UNUSUAL_DEV( 0x07c4, 0xa400, 0x0000, 0xffff,
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_FIX_INQUIRY ),
-/* Reported by Rauch Wolke <rauchwolke@....net> */
+/* Reported by Rauch Wolke <rauchwolke@....net>
+ * and augmented by binbin <binbinsh@...il.com> (Bugzilla #12882)
+ */
UNUSUAL_DEV( 0x07c4, 0xa4a5, 0x0000, 0xffff,
"Simple Tech/Datafab",
"CF+SM Reader",
US_SC_DEVICE, US_PR_DEVICE, NULL,
- US_FL_IGNORE_RESIDUE ),
+ US_FL_IGNORE_RESIDUE | US_FL_MAX_SECTORS_64 ),
/* Casio QV 2x00/3x00/4000/8000 digital still cameras are not conformant
* to the USB storage specification in two ways:
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 3662dd4..96bbafb 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -79,9 +79,12 @@ int anon_inode_getfd(const char *name, const struct file_operations *fops,
if (IS_ERR(anon_inode_inode))
return -ENODEV;
+ if (fops->owner && !try_module_get(fops->owner))
+ return -ENOENT;
+
error = get_unused_fd_flags(flags);
if (error < 0)
- return error;
+ goto err_module;
fd = error;
/*
@@ -128,6 +131,8 @@ err_dput:
dput(dentry);
err_put_unused_fd:
put_unused_fd(fd);
+err_module:
+ module_put(fops->owner);
return error;
}
EXPORT_SYMBOL_GPL(anon_inode_getfd);
diff --git a/fs/buffer.c b/fs/buffer.c
index 5e62011..7e16a78 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3042,7 +3042,7 @@ int sync_dirty_buffer(struct buffer_head *bh)
if (test_clear_buffer_dirty(bh)) {
get_bh(bh);
bh->b_end_io = end_buffer_write_sync;
- ret = submit_bh(WRITE_SYNC, bh);
+ ret = submit_bh(WRITE, bh);
wait_on_buffer(bh);
if (buffer_eopnotsupp(bh)) {
clear_buffer_eopnotsupp(bh);
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 4c1cb9a..3c8b48d 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,4 +1,7 @@
Fix oops in cifs_dfs_ref.c when prefixpath is not reachable when using DFS.
+Fix "redzone overwritten" bug in cifs_put_tcon (CIFSTcon may allocate too
+little memory for the "nativeFileSystem" field returned by the server
+during mount).
Version 1.55
------------
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 6d51696..0979c6f 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2350,8 +2350,10 @@ winCreateHardLinkRetry:
PATH_MAX, nls_codepage, remap);
name_len++; /* trailing null */
name_len *= 2;
- pSMB->OldFileName[name_len] = 0; /* pad */
- pSMB->OldFileName[name_len + 1] = 0x04;
+
+ /* protocol specifies ASCII buffer format (0x04) for unicode */
+ pSMB->OldFileName[name_len] = 0x04;
+ pSMB->OldFileName[name_len + 1] = 0x00; /* pad */
name_len2 =
cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2],
toName, PATH_MAX, nls_codepage, remap);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b5b8649..6c71d4b 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3565,7 +3565,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
BCC(smb_buffer_response)) {
kfree(tcon->nativeFileSystem);
tcon->nativeFileSystem =
- kzalloc(length + 2, GFP_KERNEL);
+ kzalloc(2*(length + 1), GFP_KERNEL);
if (tcon->nativeFileSystem)
cifs_strfromUCS_le(
tcon->nativeFileSystem,
diff --git a/fs/compat.c b/fs/compat.c
index ce35592..cbcd828 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1386,12 +1386,17 @@ int compat_do_execve(char * filename,
{
struct linux_binprm *bprm;
struct file *file;
+ struct files_struct *displaced;
int retval;
+ retval = unshare_files(&displaced);
+ if (retval)
+ goto out_ret;
+
retval = -ENOMEM;
bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
if (!bprm)
- goto out_ret;
+ goto out_files;
file = open_exec(filename);
retval = PTR_ERR(file);
@@ -1443,6 +1448,8 @@ int compat_do_execve(char * filename,
security_bprm_free(bprm);
acct_update_integrals(current);
free_bprm(bprm);
+ if (displaced)
+ put_files_struct(displaced);
return retval;
}
@@ -1463,6 +1470,9 @@ out_file:
out_kfree:
free_bprm(bprm);
+out_files:
+ if (displaced)
+ reset_files_struct(displaced);
out_ret:
return retval;
}
diff --git a/fs/dquot.c b/fs/dquot.c
index 5e95261..63d028f 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -724,7 +724,7 @@ static void add_dquot_ref(struct super_block *sb, int type)
continue;
if (!dqinit_needed(inode, type))
continue;
- if (inode->i_state & (I_FREEING|I_WILL_FREE))
+ if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE))
continue;
__iget(inode);
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 3e5637f..f7e66c0 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -18,7 +18,7 @@ static void drop_pagecache_sb(struct super_block *sb)
spin_lock(&inode_lock);
list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
- if (inode->i_state & (I_FREEING|I_WILL_FREE))
+ if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE))
continue;
if (inode->i_mapping->nrpages == 0)
continue;
diff --git a/fs/exec.c b/fs/exec.c
index c9f22cb..eed0bb8 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1084,9 +1084,7 @@ static int unsafe_exec(struct task_struct *p)
{
int unsafe = tracehook_unsafe_exec(p);
- if (atomic_read(&p->fs->count) > 1 ||
- atomic_read(&p->files->count) > 1 ||
- atomic_read(&p->sighand->count) > 1)
+ if (atomic_read(&p->fs->count) > 1)
unsafe |= LSM_UNSAFE_SHARE;
return unsafe;
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e3fe991..f81f9e7 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -538,7 +538,8 @@ void generic_sync_sb_inodes(struct super_block *sb,
list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
struct address_space *mapping;
- if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
+ if (inode->i_state &
+ (I_FREEING|I_CLEAR|I_WILL_FREE|I_NEW))
continue;
mapping = inode->i_mapping;
if (mapping->nrpages == 0)
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 61edc70..a744acb 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -26,7 +26,6 @@
#include <linux/pagevec.h>
#include <linux/parser.h>
#include <linux/mman.h>
-#include <linux/quotaops.h>
#include <linux/slab.h>
#include <linux/dnotify.h>
#include <linux/statfs.h>
@@ -838,7 +837,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
bad_val:
printk(KERN_ERR "hugetlbfs: Bad value '%s' for mount option '%s'\n",
args[0].from, p);
- return 1;
+ return -EINVAL;
}
static int
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index e2570a3..3f39a2a 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1943,7 +1943,7 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
out->f_path.dentry->d_name.len,
out->f_path.dentry->d_name.name);
- inode_double_lock(inode, pipe->inode);
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
ret = ocfs2_rw_lock(inode, 1);
if (ret < 0) {
@@ -1958,12 +1958,16 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
goto out_unlock;
}
+ if (pipe->inode)
+ mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_CHILD);
ret = generic_file_splice_write_nolock(pipe, out, ppos, len, flags);
+ if (pipe->inode)
+ mutex_unlock(&pipe->inode->i_mutex);
out_unlock:
ocfs2_rw_unlock(inode, 1);
out:
- inode_double_unlock(inode, pipe->inode);
+ mutex_unlock(&inode->i_mutex);
mlog_exit(ret);
return ret;
diff --git a/fs/proc/base.c b/fs/proc/base.c
index d467760..6505ff8 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -148,15 +148,22 @@ static unsigned int pid_entry_count_dirs(const struct pid_entry *entries,
return count;
}
-static struct fs_struct *get_fs_struct(struct task_struct *task)
+static int get_fs_path(struct task_struct *task, struct path *path, bool root)
{
struct fs_struct *fs;
+ int result = -ENOENT;
+
task_lock(task);
fs = task->fs;
- if(fs)
- atomic_inc(&fs->count);
+ if (fs) {
+ read_lock(&fs->lock);
+ *path = root ? fs->root : fs->pwd;
+ path_get(path);
+ read_unlock(&fs->lock);
+ result = 0;
+ }
task_unlock(task);
- return fs;
+ return result;
}
static int get_nr_threads(struct task_struct *tsk)
@@ -174,42 +181,24 @@ static int get_nr_threads(struct task_struct *tsk)
static int proc_cwd_link(struct inode *inode, struct path *path)
{
struct task_struct *task = get_proc_task(inode);
- struct fs_struct *fs = NULL;
int result = -ENOENT;
if (task) {
- fs = get_fs_struct(task);
+ result = get_fs_path(task, path, 0);
put_task_struct(task);
}
- if (fs) {
- read_lock(&fs->lock);
- *path = fs->pwd;
- path_get(&fs->pwd);
- read_unlock(&fs->lock);
- result = 0;
- put_fs_struct(fs);
- }
return result;
}
static int proc_root_link(struct inode *inode, struct path *path)
{
struct task_struct *task = get_proc_task(inode);
- struct fs_struct *fs = NULL;
int result = -ENOENT;
if (task) {
- fs = get_fs_struct(task);
+ result = get_fs_path(task, path, 1);
put_task_struct(task);
}
- if (fs) {
- read_lock(&fs->lock);
- *path = fs->root;
- path_get(&fs->root);
- read_unlock(&fs->lock);
- result = 0;
- put_fs_struct(fs);
- }
return result;
}
@@ -567,7 +556,6 @@ static int mounts_open_common(struct inode *inode, struct file *file,
struct task_struct *task = get_proc_task(inode);
struct nsproxy *nsp;
struct mnt_namespace *ns = NULL;
- struct fs_struct *fs = NULL;
struct path root;
struct proc_mounts *p;
int ret = -EINVAL;
@@ -581,22 +569,16 @@ static int mounts_open_common(struct inode *inode, struct file *file,
get_mnt_ns(ns);
}
rcu_read_unlock();
- if (ns)
- fs = get_fs_struct(task);
+ if (ns && get_fs_path(task, &root, 1) == 0)
+ ret = 0;
put_task_struct(task);
}
if (!ns)
goto err;
- if (!fs)
+ if (ret)
goto err_put_ns;
- read_lock(&fs->lock);
- root = fs->root;
- path_get(&root);
- read_unlock(&fs->lock);
- put_fs_struct(fs);
-
ret = -ENOMEM;
p = kmalloc(sizeof(struct proc_mounts), GFP_KERNEL);
if (!p)
diff --git a/fs/splice.c b/fs/splice.c
index 1eaef06..8074867 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -735,10 +735,19 @@ ssize_t splice_from_pipe(struct pipe_inode_info *pipe, struct file *out,
* ->write_end. Most of the time, these expect i_mutex to
* be held. Since this may result in an ABBA deadlock with
* pipe->inode, we have to order lock acquiry here.
+ *
+ * Outer lock must be inode->i_mutex, as pipe_wait() will
+ * release and reacquire pipe->inode->i_mutex, AND inode must
+ * never be a pipe.
*/
- inode_double_lock(inode, pipe->inode);
+ WARN_ON(S_ISFIFO(inode->i_mode));
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
+ if (pipe->inode)
+ mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_CHILD);
ret = __splice_from_pipe(pipe, &sd, actor);
- inode_double_unlock(inode, pipe->inode);
+ if (pipe->inode)
+ mutex_unlock(&pipe->inode->i_mutex);
+ mutex_unlock(&inode->i_mutex);
return ret;
}
@@ -829,11 +838,17 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
};
ssize_t ret;
- inode_double_lock(inode, pipe->inode);
+ WARN_ON(S_ISFIFO(inode->i_mode));
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
ret = file_remove_suid(out);
- if (likely(!ret))
+ if (likely(!ret)) {
+ if (pipe->inode)
+ mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_CHILD);
ret = __splice_from_pipe(pipe, &sd, pipe_to_file);
- inode_double_unlock(inode, pipe->inode);
+ if (pipe->inode)
+ mutex_unlock(&pipe->inode->i_mutex);
+ }
+ mutex_unlock(&inode->i_mutex);
if (ret > 0) {
unsigned long nr_pages;
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 28863f4..dc09ff6 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -366,7 +366,21 @@ typedef struct kernel_cap_struct {
#define CAP_FOR_EACH_U32(__capi) \
for (__capi = 0; __capi < _KERNEL_CAPABILITY_U32S; ++__capi)
+/*
+ * CAP_FS_MASK and CAP_NFSD_MASKS:
+ *
+ * The fs mask is all the privileges that fsuid==0 historically meant.
+ * At one time in the past, that included CAP_MKNOD and CAP_LINUX_IMMUTABLE.
+ *
+ * It has never meant setting security.* and trusted.* xattrs.
+ *
+ * We could also define fsmask as follows:
+ * 1. CAP_FS_MASK is the privilege to bypass all fs-related DAC permissions
+ * 2. The security.* and trusted.* xattrs are fs-related MAC permissions
+ */
+
# define CAP_FS_MASK_B0 (CAP_TO_MASK(CAP_CHOWN) \
+ | CAP_TO_MASK(CAP_MKNOD) \
| CAP_TO_MASK(CAP_DAC_OVERRIDE) \
| CAP_TO_MASK(CAP_DAC_READ_SEARCH) \
| CAP_TO_MASK(CAP_FOWNER) \
@@ -381,11 +395,12 @@ typedef struct kernel_cap_struct {
# define CAP_EMPTY_SET ((kernel_cap_t){{ 0, 0 }})
# define CAP_FULL_SET ((kernel_cap_t){{ ~0, ~0 }})
# define CAP_INIT_EFF_SET ((kernel_cap_t){{ ~CAP_TO_MASK(CAP_SETPCAP), ~0 }})
-# define CAP_FS_SET ((kernel_cap_t){{ CAP_FS_MASK_B0, CAP_FS_MASK_B1 } })
+# define CAP_FS_SET ((kernel_cap_t){{ CAP_FS_MASK_B0 \
+ | CAP_TO_MASK(CAP_LINUX_IMMUTABLE), \
+ CAP_FS_MASK_B1 } })
# define CAP_NFSD_SET ((kernel_cap_t){{ CAP_FS_MASK_B0 \
- | CAP_TO_MASK(CAP_SYS_RESOURCE) \
- | CAP_TO_MASK(CAP_MKNOD), \
- CAP_FS_MASK_B1 } })
+ | CAP_TO_MASK(CAP_SYS_RESOURCE), \
+ CAP_FS_MASK_B1 } })
#endif /* _KERNEL_CAPABILITY_U32S != 2 */
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 3df7742..20e06d5 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -213,6 +213,7 @@ static inline void disk_put_part(struct hd_struct *part)
#define DISK_PITER_REVERSE (1 << 0) /* iterate in the reverse direction */
#define DISK_PITER_INCL_EMPTY (1 << 1) /* include 0-sized parts */
#define DISK_PITER_INCL_PART0 (1 << 2) /* include partition 0 */
+#define DISK_PITER_INCL_EMPTY_PART0 (1 << 3) /* include empty partition 0 */
struct disk_part_iter {
struct gendisk *disk;
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index f18b86f..7c40a5a 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -387,6 +387,8 @@ struct kvm_trace_rec {
#define KVM_CAP_DEVICE_ASSIGNMENT 17
#endif
#define KVM_CAP_IOMMU 18
+/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
+#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
/*
* ioctls for VM fds
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 01ca085..076a7dc 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -18,9 +18,14 @@
* Bits in mapping->flags. The lower __GFP_BITS_SHIFT bits are the page
* allocation mode flags.
*/
-#define AS_EIO (__GFP_BITS_SHIFT + 0) /* IO error on async write */
-#define AS_ENOSPC (__GFP_BITS_SHIFT + 1) /* ENOSPC on async write */
-#define AS_MM_ALL_LOCKS (__GFP_BITS_SHIFT + 2) /* under mm_take_all_locks() */
+enum mapping_flags {
+ AS_EIO = __GFP_BITS_SHIFT + 0, /* IO error on async write */
+ AS_ENOSPC = __GFP_BITS_SHIFT + 1, /* ENOSPC on async write */
+ AS_MM_ALL_LOCKS = __GFP_BITS_SHIFT + 2, /* under mm_take_all_locks() */
+#ifdef CONFIG_UNEVICTABLE_LRU
+ AS_UNEVICTABLE = __GFP_BITS_SHIFT + 3, /* e.g., ramdisk, SHM_LOCK */
+#endif
+};
static inline void mapping_set_error(struct address_space *mapping, int error)
{
@@ -33,7 +38,6 @@ static inline void mapping_set_error(struct address_space *mapping, int error)
}
#ifdef CONFIG_UNEVICTABLE_LRU
-#define AS_UNEVICTABLE (__GFP_BITS_SHIFT + 2) /* e.g., ramdisk, SHM_LOCK */
static inline void mapping_set_unevictable(struct address_space *mapping)
{
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index e5effd4..1e9e51f 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -234,7 +234,7 @@
#define PCI_PM_CAP_PME_SHIFT 11 /* Start of the PME Mask in PMC */
#define PCI_PM_CTRL 4 /* PM control and status register */
#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
-#define PCI_PM_CTRL_NO_SOFT_RESET 0x0004 /* No reset for D3hot->D0 */
+#define PCI_PM_CTRL_NO_SOFT_RESET 0x0008 /* No reset for D3hot->D0 */
#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index 8fc909e..85a1ec4 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -245,6 +245,8 @@ struct mddev_s
* file in sysfs.
*/
+ struct work_struct del_work; /* used for delayed sysfs removal */
+
spinlock_t write_lock;
wait_queue_head_t sb_wait; /* for waiting on superblock updates */
atomic_t pending_writes; /* number of active superblock writes */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3883c32..1538c16 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -201,7 +201,8 @@ extern unsigned long long time_sync_thresh;
#define task_is_stopped_or_traced(task) \
((task->state & (__TASK_STOPPED | __TASK_TRACED)) != 0)
#define task_contributes_to_load(task) \
- ((task->state & TASK_UNINTERRUPTIBLE) != 0)
+ ((task->state & TASK_UNINTERRUPTIBLE) != 0 && \
+ (task->flags & PF_FROZEN) == 0)
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 7f6c603..2526f3b 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -16,4 +16,7 @@
/* device can't handle Set-Interface requests */
#define USB_QUIRK_NO_SET_INTF 0x00000004
+/* device can't handle its Configuration or Interface strings */
+#define USB_QUIRK_CONFIG_INTF_STRINGS 0x00000008
+
#endif /* __LINUX_USB_QUIRKS_H */
diff --git a/kernel/exit.c b/kernel/exit.c
index 10e393b..dd9bfe2 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -942,8 +942,7 @@ static void exit_notify(struct task_struct *tsk, int group_dead)
*/
if (tsk->exit_signal != SIGCHLD && !task_detached(tsk) &&
(tsk->parent_exec_id != tsk->real_parent->self_exec_id ||
- tsk->self_exec_id != tsk->parent_exec_id) &&
- !capable(CAP_KILL))
+ tsk->self_exec_id != tsk->parent_exec_id))
tsk->exit_signal = SIGCHLD;
signal = tracehook_notify_death(tsk, &cookie, group_dead);
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 9f8a3f2..b96da68 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -901,10 +901,8 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
ri->rp = rp;
ri->task = current;
- if (rp->entry_handler && rp->entry_handler(ri, regs)) {
- spin_unlock_irqrestore(&rp->lock, flags);
+ if (rp->entry_handler && rp->entry_handler(ri, regs))
return 0;
- }
arch_prepare_kretprobe(ri, regs);
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 4e5288a..a65641a 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -294,7 +294,7 @@ static int cpu_clock_sample(const clockid_t which_clock, struct task_struct *p,
cpu->cpu = virt_ticks(p);
break;
case CPUCLOCK_SCHED:
- cpu->sched = p->se.sum_exec_runtime + task_delta_exec(p);
+ cpu->sched = task_sched_runtime(p);
break;
}
return 0;
@@ -310,18 +310,19 @@ static int cpu_clock_sample_group(const clockid_t which_clock,
{
struct task_cputime cputime;
- thread_group_cputime(p, &cputime);
switch (CPUCLOCK_WHICH(which_clock)) {
default:
return -EINVAL;
case CPUCLOCK_PROF:
+ thread_group_cputime(p, &cputime);
cpu->cpu = cputime_add(cputime.utime, cputime.stime);
break;
case CPUCLOCK_VIRT:
+ thread_group_cputime(p, &cputime);
cpu->cpu = cputime.utime;
break;
case CPUCLOCK_SCHED:
- cpu->sched = cputime.sum_exec_runtime + task_delta_exec(p);
+ cpu->sched = thread_group_sched_runtime(p);
break;
}
return 0;
diff --git a/kernel/sched.c b/kernel/sched.c
index db66874..2674597 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4064,9 +4064,25 @@ DEFINE_PER_CPU(struct kernel_stat, kstat);
EXPORT_PER_CPU_SYMBOL(kstat);
/*
- * Return any ns on the sched_clock that have not yet been banked in
+ * Return any ns on the sched_clock that have not yet been accounted in
* @p in case that task is currently running.
+ *
+ * Called with task_rq_lock() held on @rq.
*/
+static u64 do_task_delta_exec(struct task_struct *p, struct rq *rq)
+{
+ u64 ns = 0;
+
+ if (task_current(rq, p)) {
+ update_rq_clock(rq);
+ ns = rq->clock - p->se.exec_start;
+ if ((s64)ns < 0)
+ ns = 0;
+ }
+
+ return ns;
+}
+
unsigned long long task_delta_exec(struct task_struct *p)
{
unsigned long flags;
@@ -4074,16 +4090,49 @@ unsigned long long task_delta_exec(struct task_struct *p)
u64 ns = 0;
rq = task_rq_lock(p, &flags);
+ ns = do_task_delta_exec(p, rq);
+ task_rq_unlock(rq, &flags);
- if (task_current(rq, p)) {
- u64 delta_exec;
+ return ns;
+}
- update_rq_clock(rq);
- delta_exec = rq->clock - p->se.exec_start;
- if ((s64)delta_exec > 0)
- ns = delta_exec;
- }
+/*
+ * Return accounted runtime for the task.
+ * In case the task is currently running, return the runtime plus current's
+ * pending runtime that have not been accounted yet.
+ */
+unsigned long long task_sched_runtime(struct task_struct *p)
+{
+ unsigned long flags;
+ struct rq *rq;
+ u64 ns = 0;
+
+ rq = task_rq_lock(p, &flags);
+ ns = p->se.sum_exec_runtime + do_task_delta_exec(p, rq);
+ task_rq_unlock(rq, &flags);
+
+ return ns;
+}
+/*
+ * Return sum_exec_runtime for the thread group.
+ * In case the task is currently running, return the sum plus current's
+ * pending runtime that have not been accounted yet.
+ *
+ * Note that the thread group might have other running tasks as well,
+ * so the return value not includes other pending runtime that other
+ * running tasks might have.
+ */
+unsigned long long thread_group_sched_runtime(struct task_struct *p)
+{
+ struct task_cputime totals;
+ unsigned long flags;
+ struct rq *rq;
+ u64 ns;
+
+ rq = task_rq_lock(p, &flags);
+ thread_group_cputime(p, &totals);
+ ns = totals.sum_exec_runtime + do_task_delta_exec(p, rq);
task_rq_unlock(rq, &flags);
return ns;
diff --git a/kernel/signal.c b/kernel/signal.c
index 28859a9..d896bc4 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1552,7 +1552,15 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info)
read_lock(&tasklist_lock);
if (may_ptrace_stop()) {
do_notify_parent_cldstop(current, CLD_TRAPPED);
+ /*
+ * Don't want to allow preemption here, because
+ * sys_ptrace() needs this task to be inactive.
+ *
+ * XXX: implement read_unlock_no_resched().
+ */
+ preempt_disable();
read_unlock(&tasklist_lock);
+ preempt_enable_no_resched();
schedule();
} else {
/*
diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c
index b5167df..e8b2b18 100644
--- a/mm/filemap_xip.c
+++ b/mm/filemap_xip.c
@@ -89,8 +89,8 @@ do_xip_mapping_read(struct address_space *mapping,
}
}
nr = nr - offset;
- if (nr > len)
- nr = len;
+ if (nr > len - copied)
+ nr = len - copied;
error = mapping->a_ops->get_xip_mem(mapping, index, 0,
&xip_mem, &xip_pfn);
diff --git a/mm/mmap.c b/mm/mmap.c
index eb61f47..15d7148 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1580,7 +1580,7 @@ static int acct_stack_growth(struct vm_area_struct * vma, unsigned long size, un
* Overcommit.. This must be the final test, as it will
* update security statistics.
*/
- if (security_vm_enough_memory(grow))
+ if (security_vm_enough_memory_mm(mm, grow))
return -ENOMEM;
/* Ok, everything looks good - let it rip */
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 0a09ccf..b8767f2 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -426,7 +426,6 @@ err2:
err1:
kobject_del(&p->kobj);
err0:
- kobject_put(&p->kobj);
dev_set_promiscuity(dev, -1);
put_back:
dev_put(dev);
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 8d70d29..b1bd141 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -374,7 +374,9 @@ static int mark_source_chains(struct xt_table_info *newinfo,
&& unconditional(&e->arp)) || visited) {
unsigned int oldpos, size;
- if (t->verdict < -NF_MAX_VERDICT - 1) {
+ if ((strcmp(t->target.u.user.name,
+ ARPT_STANDARD_TARGET) == 0) &&
+ t->verdict < -NF_MAX_VERDICT - 1) {
duprintf("mark_source_chains: bad "
"negative verdict (%i)\n",
t->verdict);
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 213fb27..3d471f8 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -500,7 +500,9 @@ mark_source_chains(struct xt_table_info *newinfo,
&& unconditional(&e->ip)) || visited) {
unsigned int oldpos, size;
- if (t->verdict < -NF_MAX_VERDICT - 1) {
+ if ((strcmp(t->target.u.user.name,
+ IPT_STANDARD_TARGET) == 0) &&
+ t->verdict < -NF_MAX_VERDICT - 1) {
duprintf("mark_source_chains: bad "
"negative verdict (%i)\n",
t->verdict);
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 1646a56..4494cb6 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -210,11 +210,11 @@ unique:
if (twp != NULL) {
*twp = tw;
- NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITRECYCLED);
+ NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
} else if (tw != NULL) {
/* Silly. Should hash-dance instead... */
inet_twsk_deschedule(tw, death_row);
- NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITRECYCLED);
+ NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
inet_twsk_put(tw);
}
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 936f489..e85bf8e 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -75,8 +75,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL ||
!idev || unlikely(idev->cnf.disable_ipv6)) {
IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INDISCARDS);
- rcu_read_unlock();
- goto out;
+ goto drop;
}
memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm));
@@ -147,7 +146,6 @@ err:
drop:
rcu_read_unlock();
kfree_skb(skb);
-out:
return 0;
}
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index a33485d..def375b 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -525,7 +525,9 @@ mark_source_chains(struct xt_table_info *newinfo,
&& unconditional(&e->ipv6)) || visited) {
unsigned int oldpos, size;
- if (t->verdict < -NF_MAX_VERDICT - 1) {
+ if ((strcmp(t->target.u.user.name,
+ IP6T_STANDARD_TARGET) == 0) &&
+ t->verdict < -NF_MAX_VERDICT - 1) {
duprintf("mark_source_chains: bad "
"negative verdict (%i)\n",
t->verdict);
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index f947ec4..57a2b56 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -15,6 +15,7 @@
#include <linux/skbuff.h>
#include <linux/ipv6.h>
#include <net/ip6_checksum.h>
+#include <asm/unaligned.h>
#include <net/tcp.h>
@@ -466,7 +467,7 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff,
for (i = 0;
i < (opsize - TCPOLEN_SACK_BASE);
i += TCPOLEN_SACK_PERBLOCK) {
- tmp = ntohl(*((__be32 *)(ptr+i)+1));
+ tmp = get_unaligned_be32((__be32 *)(ptr+i)+1);
if (after(tmp, *sack))
*sack = tmp;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 9f1ea4a..db9e263 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1082,7 +1082,13 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
SOCK_DEBUG(sk, "NET/ROM: sendto: Addresses built.\n");
- /* Build a packet */
+ /* Build a packet - the conventional user limit is 236 bytes. We can
+ do ludicrously large NetROM frames but must not overflow */
+ if (len > 65536) {
+ err = -EMSGSIZE;
+ goto out;
+ }
+
SOCK_DEBUG(sk, "NET/ROM: sendto: building packet.\n");
size = len + NR_NETWORK_LEN + NR_TRANSPORT_LEN;
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 0c1cc76..deee370 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1124,6 +1124,10 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock,
/* Build a packet */
SOCK_DEBUG(sk, "ROSE: sendto: building packet.\n");
+ /* Sanity check the packet size */
+ if (len > 65535)
+ return -EMSGSIZE;
+
size = len + AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN;
if ((skb = sock_alloc_send_skb(sk, size, msg->msg_flags & MSG_DONTWAIT, &err)) == NULL)
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 4c8d9f4..905fda5 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -111,7 +111,8 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
if (sctp_addip_enable) {
auth_chunks->chunks[0] = SCTP_CID_ASCONF;
auth_chunks->chunks[1] = SCTP_CID_ASCONF_ACK;
- auth_chunks->param_hdr.length += htons(2);
+ auth_chunks->param_hdr.length =
+ htons(sizeof(sctp_paramhdr_t) + 2);
}
}
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 9fc5b02..88d80f5 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1037,6 +1037,12 @@ static int x25_sendmsg(struct kiocb *iocb, struct socket *sock,
sx25.sx25_addr = x25->dest_addr;
}
+ /* Sanity check the packet size */
+ if (len > 65535) {
+ rc = -EMSGSIZE;
+ goto out;
+ }
+
SOCK_DEBUG(sk, "x25_sendmsg: sendto: Addresses built.\n");
/* Build a packet */
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 508337f..403f920 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1601,7 +1601,7 @@ void xfrm_state_walk_done(struct xfrm_state_walk *walk)
spin_lock_bh(&xfrm_state_lock);
list_del(&walk->all);
- spin_lock_bh(&xfrm_state_lock);
+ spin_unlock_bh(&xfrm_state_lock);
}
EXPORT_SYMBOL(xfrm_state_walk_done);
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index f85597a..d9a5adc 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4550,6 +4550,7 @@ static int selinux_ip_postroute_iptables_compat(struct sock *sk,
if (err)
return err;
err = avc_has_perm(sk_sid, if_sid, SECCLASS_NETIF, netif_perm, ad);
+ if (err)
return err;
err = sel_netnode_sid(addrp, family, &node_sid);
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 6e2dc0b..c1af84d 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -604,6 +604,8 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
strcmp(name, XATTR_NAME_SMACKIPOUT) == 0) {
if (!capable(CAP_MAC_ADMIN))
rc = -EPERM;
+ if (size == 0)
+ rc = -EINVAL;
} else
rc = cap_inode_setxattr(dentry, name, value, size, flags);
@@ -1360,7 +1362,7 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
struct socket *sock;
int rc = 0;
- if (value == NULL || size > SMK_LABELLEN)
+ if (value == NULL || size > SMK_LABELLEN || size == 0)
return -EACCES;
sp = smk_import(value, size);
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 3495e83..7551f15 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -3233,7 +3233,7 @@ static const char *ad1884_slave_vols[] = {
"Mic Playback Volume",
"CD Playback Volume",
"Internal Mic Playback Volume",
- "Docking Mic Playback Volume"
+ "Docking Mic Playback Volume",
"Beep Playback Volume",
"IEC958 Playback Volume",
NULL
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a87f45e..b3bcd60 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -553,11 +553,19 @@ static int kvm_mmu_notifier_clear_flush_young(struct mmu_notifier *mn,
return young;
}
+static void kvm_mmu_notifier_release(struct mmu_notifier *mn,
+ struct mm_struct *mm)
+{
+ struct kvm *kvm = mmu_notifier_to_kvm(mn);
+ kvm_arch_flush_shadow(kvm);
+}
+
static const struct mmu_notifier_ops kvm_mmu_notifier_ops = {
.invalidate_page = kvm_mmu_notifier_invalidate_page,
.invalidate_range_start = kvm_mmu_notifier_invalidate_range_start,
.invalidate_range_end = kvm_mmu_notifier_invalidate_range_end,
.clear_flush_young = kvm_mmu_notifier_clear_flush_young,
+ .release = kvm_mmu_notifier_release,
};
#endif /* CONFIG_MMU_NOTIFIER && KVM_ARCH_WANT_MMU_NOTIFIER */
@@ -821,7 +829,10 @@ int __kvm_set_memory_region(struct kvm *kvm,
goto out_free;
}
- kvm_free_physmem_slot(&old, &new);
+ kvm_free_physmem_slot(&old, npages ? &new : NULL);
+ /* Slot deletion case: we have to update the current slot */
+ if (!npages)
+ *memslot = old;
#ifdef CONFIG_DMAR
/* map the pages in iommu page table */
r = kvm_iommu_map_pages(kvm, base_gfn, npages);
@@ -918,7 +929,7 @@ int kvm_is_error_hva(unsigned long addr)
}
EXPORT_SYMBOL_GPL(kvm_is_error_hva);
-static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
+struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn)
{
int i;
@@ -931,11 +942,12 @@ static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
}
return NULL;
}
+EXPORT_SYMBOL_GPL(gfn_to_memslot_unaliased);
struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
{
gfn = unalias_gfn(kvm, gfn);
- return __gfn_to_memslot(kvm, gfn);
+ return gfn_to_memslot_unaliased(kvm, gfn);
}
int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
@@ -959,7 +971,7 @@ unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
struct kvm_memory_slot *slot;
gfn = unalias_gfn(kvm, gfn);
- slot = __gfn_to_memslot(kvm, gfn);
+ slot = gfn_to_memslot_unaliased(kvm, gfn);
if (!slot)
return bad_hva();
return (slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE);
@@ -1210,7 +1222,7 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
struct kvm_memory_slot *memslot;
gfn = unalias_gfn(kvm, gfn);
- memslot = __gfn_to_memslot(kvm, gfn);
+ memslot = gfn_to_memslot_unaliased(kvm, gfn);
if (memslot && memslot->dirty_bitmap) {
unsigned long rel_gfn = gfn - memslot->base_gfn;
@@ -1295,7 +1307,7 @@ static int kvm_vcpu_release(struct inode *inode, struct file *filp)
return 0;
}
-static const struct file_operations kvm_vcpu_fops = {
+static struct file_operations kvm_vcpu_fops = {
.release = kvm_vcpu_release,
.unlocked_ioctl = kvm_vcpu_ioctl,
.compat_ioctl = kvm_vcpu_ioctl,
@@ -1689,7 +1701,7 @@ static int kvm_vm_mmap(struct file *file, struct vm_area_struct *vma)
return 0;
}
-static const struct file_operations kvm_vm_fops = {
+static struct file_operations kvm_vm_fops = {
.release = kvm_vm_release,
.unlocked_ioctl = kvm_vm_ioctl,
.compat_ioctl = kvm_vm_ioctl,
@@ -1711,6 +1723,17 @@ static int kvm_dev_ioctl_create_vm(void)
return fd;
}
+static long kvm_dev_ioctl_check_extension_generic(long arg)
+{
+ switch (arg) {
+ case KVM_CAP_DESTROY_MEMORY_REGION_WORKS:
+ return 1;
+ default:
+ break;
+ }
+ return kvm_dev_ioctl_check_extension(arg);
+}
+
static long kvm_dev_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
{
@@ -1730,7 +1753,7 @@ static long kvm_dev_ioctl(struct file *filp,
r = kvm_dev_ioctl_create_vm();
break;
case KVM_CHECK_EXTENSION:
- r = kvm_dev_ioctl_check_extension(arg);
+ r = kvm_dev_ioctl_check_extension_generic(arg);
break;
case KVM_GET_VCPU_MMAP_SIZE:
r = -EINVAL;
@@ -2053,6 +2076,8 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
}
kvm_chardev_ops.owner = module;
+ kvm_vm_fops.owner = module;
+ kvm_vcpu_fops.owner = module;
r = misc_register(&kvm_dev);
if (r) {
diff --git a/virt/kvm/kvm_trace.c b/virt/kvm/kvm_trace.c
index 41dcc84..f598744 100644
--- a/virt/kvm/kvm_trace.c
+++ b/virt/kvm/kvm_trace.c
@@ -252,6 +252,7 @@ void kvm_trace_cleanup(void)
struct kvm_trace_probe *p = &kvm_trace_probes[i];
marker_probe_unregister(p->name, p->probe_func, p);
}
+ marker_synchronize_unregister();
relay_close(kt->rchan);
debugfs_remove(kt->lost_file);
--
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