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Open Source and information security mailing list archives
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Date: Mon, 15 Jun 2009 13:03:49 -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 2.6.29.5
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index cec829b..5c484ae 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -85,7 +85,7 @@ Note: More extensive information for getting started with ext4 can be
* extent format more robust in face of on-disk corruption due to magics,
* internal redundancy in tree
* improved file allocation (multi-block alloc)
-* fix 32000 subdirectory limit
+* lift 32000 subdirectory limit imposed by i_links_count[1]
* nsec timestamps for mtime, atime, ctime, create time
* inode version field on disk (NFSv4, Lustre)
* reduced e2fsck time via uninit_bg feature
@@ -100,6 +100,9 @@ Note: More extensive information for getting started with ext4 can be
* efficent new ordered mode in JBD2 and ext4(avoid using buffer head to force
the ordering)
+[1] Filesystems with a block size of 1k may see a limit imposed by the
+directory hash tree having a maximum depth of two.
+
2.2 Candidate features for future inclusion
* Online defrag (patches available but not well tested)
diff --git a/Makefile b/Makefile
index 1095142..330e8de 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 29
-EXTRAVERSION = .4
+EXTRAVERSION = .5
NAME = Temporary Tasmanian Devil
# *DOCUMENTATION*
diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index f900a39..3bc41c3 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -161,6 +161,6 @@ _GLOBAL(_tlbil_va)
isync
1: wrtee r10
blr
-#elif
+#else
#error Unsupported processor type !
#endif
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 0a83bd7..c8f14c1 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -246,8 +246,25 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
static int of_bus_sbus_match(struct device_node *np)
{
- return !strcmp(np->name, "sbus") ||
- !strcmp(np->name, "sbi");
+ struct device_node *dp = np;
+
+ while (dp) {
+ if (!strcmp(dp->name, "sbus") ||
+ !strcmp(dp->name, "sbi"))
+ return 1;
+
+ /* Have a look at use_1to1_mapping(). We're trying
+ * to match SBUS if that's the top-level bus and we
+ * don't have some intervening real bus that provides
+ * ranges based translations.
+ */
+ if (of_find_property(dp, "ranges", NULL) != NULL)
+ break;
+
+ dp = dp->parent;
+ }
+
+ return 0;
}
static void of_bus_sbus_count_cells(struct device_node *child,
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index b4a12c9..9013c4b 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -301,8 +301,25 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
static int of_bus_sbus_match(struct device_node *np)
{
- return !strcmp(np->name, "sbus") ||
- !strcmp(np->name, "sbi");
+ struct device_node *dp = np;
+
+ while (dp) {
+ if (!strcmp(dp->name, "sbus") ||
+ !strcmp(dp->name, "sbi"))
+ return 1;
+
+ /* Have a look at use_1to1_mapping(). We're trying
+ * to match SBUS if that's the top-level bus and we
+ * don't have some intervening real bus that provides
+ * ranges based translations.
+ */
+ if (of_find_property(dp, "ranges", NULL) != NULL)
+ break;
+
+ dp = dp->parent;
+ }
+
+ return 0;
}
static void of_bus_sbus_count_cells(struct device_node *child,
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 79457f6..a35fef7 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -118,9 +118,9 @@ void __cpuinit smp_callin(void)
while (!cpu_isset(cpuid, smp_commenced_mask))
rmb();
- ipi_call_lock();
+ ipi_call_lock_irq();
cpu_set(cpuid, cpu_online_map);
- ipi_call_unlock();
+ ipi_call_unlock_irq();
/* idle thread is expected to have preempt disabled */
preempt_disable();
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index a00545f..db3134f 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -191,27 +191,42 @@ static struct clock_event_device hpet_clockevent = {
.rating = 50,
};
-static void hpet_start_counter(void)
+static void hpet_stop_counter(void)
{
unsigned long cfg = hpet_readl(HPET_CFG);
-
cfg &= ~HPET_CFG_ENABLE;
hpet_writel(cfg, HPET_CFG);
+}
+
+static void hpet_reset_counter(void)
+{
hpet_writel(0, HPET_COUNTER);
hpet_writel(0, HPET_COUNTER + 4);
+}
+
+static void hpet_start_counter(void)
+{
+ unsigned long cfg = hpet_readl(HPET_CFG);
cfg |= HPET_CFG_ENABLE;
hpet_writel(cfg, HPET_CFG);
}
+static void hpet_restart_counter(void)
+{
+ hpet_stop_counter();
+ hpet_reset_counter();
+ hpet_start_counter();
+}
+
static void hpet_resume_device(void)
{
force_hpet_resume();
}
-static void hpet_restart_counter(void)
+static void hpet_resume_counter(void)
{
hpet_resume_device();
- hpet_start_counter();
+ hpet_restart_counter();
}
static void hpet_enable_legacy_int(void)
@@ -264,6 +279,7 @@ static void hpet_set_mode(enum clock_event_mode mode,
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
+ hpet_stop_counter();
delta = ((uint64_t)(NSEC_PER_SEC/HZ)) * evt->mult;
delta >>= evt->shift;
now = hpet_readl(HPET_COUNTER);
@@ -274,14 +290,17 @@ static void hpet_set_mode(enum clock_event_mode mode,
cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
HPET_TN_SETVAL | HPET_TN_32BIT;
hpet_writel(cfg, HPET_Tn_CFG(timer));
- /*
- * The first write after writing TN_SETVAL to the
- * config register sets the counter value, the second
- * write sets the period.
- */
hpet_writel(cmp, HPET_Tn_CMP(timer));
udelay(1);
+ /*
+ * HPET on AMD 81xx needs a second write (with HPET_TN_SETVAL
+ * cleared) to T0_CMP to set the period. The HPET_TN_SETVAL
+ * bit is automatically cleared after the first write.
+ * (See AMD-8111 HyperTransport I/O Hub Data Sheet,
+ * Publication # 24674)
+ */
hpet_writel((unsigned long) delta, HPET_Tn_CMP(timer));
+ hpet_start_counter();
break;
case CLOCK_EVT_MODE_ONESHOT:
@@ -695,7 +714,7 @@ static struct clocksource clocksource_hpet = {
.mask = HPET_MASK,
.shift = HPET_SHIFT,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
- .resume = hpet_restart_counter,
+ .resume = hpet_resume_counter,
#ifdef CONFIG_X86_64
.vread = vread_hpet,
#endif
@@ -707,7 +726,7 @@ static int hpet_clocksource_register(void)
cycle_t t1;
/* Start the counter */
- hpet_start_counter();
+ hpet_restart_counter();
/* Verify whether hpet counter works */
t1 = read_hpet();
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8005da2..2d2affd 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2906,8 +2906,7 @@ static int kvm_pv_mmu_write(struct kvm_vcpu *vcpu,
static int kvm_pv_mmu_flush_tlb(struct kvm_vcpu *vcpu)
{
- kvm_x86_ops->tlb_flush(vcpu);
- set_bit(KVM_REQ_MMU_SYNC, &vcpu->requests);
+ kvm_set_cr3(vcpu, vcpu->arch.cr3);
return 1;
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 92f0457..570184a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -334,6 +334,9 @@ EXPORT_SYMBOL_GPL(kvm_lmsw);
void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
{
+ unsigned long old_cr4 = vcpu->arch.cr4;
+ unsigned long pdptr_bits = X86_CR4_PGE | X86_CR4_PSE | X86_CR4_PAE;
+
if (cr4 & CR4_RESERVED_BITS) {
printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n");
kvm_inject_gp(vcpu, 0);
@@ -347,7 +350,8 @@ void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
kvm_inject_gp(vcpu, 0);
return;
}
- } else if (is_paging(vcpu) && !is_pae(vcpu) && (cr4 & X86_CR4_PAE)
+ } else if (is_paging(vcpu) && (cr4 & X86_CR4_PAE)
+ && ((cr4 ^ old_cr4) & pdptr_bits)
&& !load_pdptrs(vcpu, vcpu->arch.cr3)) {
printk(KERN_DEBUG "set_cr4: #GP, pdptrs reserved bits\n");
kvm_inject_gp(vcpu, 0);
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 8f307d9..f46c340 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -26,12 +26,16 @@ static unsigned long page_table_shareable(struct vm_area_struct *svma,
unsigned long sbase = saddr & PUD_MASK;
unsigned long s_end = sbase + PUD_SIZE;
+ /* Allow segments to share if only one is marked locked */
+ unsigned long vm_flags = vma->vm_flags & ~VM_LOCKED;
+ unsigned long svm_flags = svma->vm_flags & ~VM_LOCKED;
+
/*
* match the virtual addresses, permission and the alignment of the
* page table page.
*/
if (pmd_index(addr) != pmd_index(saddr) ||
- vma->vm_flags != svma->vm_flags ||
+ vm_flags != svm_flags ||
sbase < svma->vm_start || svma->vm_end < s_end)
return 0;
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 9136946..d6033b8 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -254,7 +254,7 @@ static acpi_status __init check_mcfg_resource(struct acpi_resource *res,
if (!fixmem32)
return AE_OK;
if ((mcfg_res->start >= fixmem32->address) &&
- (mcfg_res->end <= (fixmem32->address +
+ (mcfg_res->end < (fixmem32->address +
fixmem32->address_length))) {
mcfg_res->flags = 1;
return AE_CTRL_TERMINATE;
@@ -271,7 +271,7 @@ static acpi_status __init check_mcfg_resource(struct acpi_resource *res,
return AE_OK;
if ((mcfg_res->start >= address.minimum) &&
- (mcfg_res->end <= (address.minimum + address.address_length))) {
+ (mcfg_res->end < (address.minimum + address.address_length))) {
mcfg_res->flags = 1;
return AE_CTRL_TERMINATE;
}
@@ -297,7 +297,7 @@ static int __init is_acpi_reserved(u64 start, u64 end, unsigned not_used)
struct resource mcfg_res;
mcfg_res.start = start;
- mcfg_res.end = end;
+ mcfg_res.end = end - 1;
mcfg_res.flags = 0;
acpi_get_devices("PNP0C01", find_mboard_resource, &mcfg_res, NULL);
diff --git a/crypto/api.c b/crypto/api.c
index 38a2bc0..e7aa72d 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -221,7 +221,8 @@ struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask)
request_module(name);
- if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask) &&
+ if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask &
+ CRYPTO_ALG_NEED_FALLBACK) &&
snprintf(tmp, sizeof(tmp), "%s-all", name) < sizeof(tmp))
request_module(tmp);
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 7bc22a4..61f6b7a 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -212,6 +212,9 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
struct acpi_processor_power *pwr = &pr->power;
u8 type = local_apic_timer_c2_ok ? ACPI_STATE_C3 : ACPI_STATE_C2;
+ if (boot_cpu_has(X86_FEATURE_AMDC1E))
+ type = ACPI_STATE_C1;
+
/*
* Check, if one of the previous states already marked the lapic
* unstable
@@ -648,6 +651,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
switch (cx->type) {
case ACPI_STATE_C1:
cx->valid = 1;
+ acpi_timer_check_state(i, pr, cx);
break;
case ACPI_STATE_C2:
@@ -866,17 +870,19 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
/* Do not access any ACPI IO ports in suspend path */
if (acpi_idle_suspend) {
- acpi_safe_halt();
local_irq_enable();
+ cpu_relax();
return 0;
}
+ acpi_state_timer_broadcast(pr, cx, 1);
t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
acpi_idle_do_entry(cx);
t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
local_irq_enable();
cx->usage++;
+ acpi_state_timer_broadcast(pr, cx, 0);
return ticks_elapsed_in_us(t1, t2);
}
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 8f90508..6971a12 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -977,8 +977,10 @@ static void backend_changed(struct xenbus_device *dev,
break;
case XenbusStateClosing:
- if (info->gd == NULL)
- xenbus_dev_fatal(dev, -ENODEV, "gd is NULL");
+ if (info->gd == NULL) {
+ xenbus_frontend_closed(dev);
+ break;
+ }
bd = bdget_disk(info->gd, 0);
if (bd == NULL)
xenbus_dev_fatal(dev, -ENODEV, "bdget failed");
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 7c13581..1801245 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1660,15 +1660,20 @@ EXPORT_SYMBOL(secure_dccp_sequence_number);
* value is not cryptographically secure but for several uses the cost of
* depleting entropy is too high
*/
+DEFINE_PER_CPU(__u32 [4], get_random_int_hash);
unsigned int get_random_int(void)
{
- /*
- * Use IP's RNG. It suits our purpose perfectly: it re-keys itself
- * every second, from the entropy pool (and thus creates a limited
- * drain on it), and uses halfMD4Transform within the second. We
- * also mix it with jiffies and the PID:
- */
- return secure_ip_id((__force __be32)(current->pid + jiffies));
+ struct keydata *keyptr;
+ __u32 *hash = get_cpu_var(get_random_int_hash);
+ int ret;
+
+ keyptr = get_keyptr();
+ hash[0] += current->pid + jiffies + get_cycles();
+
+ ret = half_md4_transform(hash, keyptr->secret);
+ put_cpu_var(get_random_int_hash);
+
+ return ret;
}
/*
diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c
index ed306eb..0c2f55a 100644
--- a/drivers/char/tpm/tpm_bios.c
+++ b/drivers/char/tpm/tpm_bios.c
@@ -212,7 +212,8 @@ static int get_event_name(char *dest, struct tcpa_event *event,
unsigned char * event_entry)
{
const char *name = "";
- char data[40] = "";
+ /* 41 so there is room for 40 data and 1 nul */
+ char data[41] = "";
int i, n_len = 0, d_len = 0;
struct tcpa_pc_event *pc_event;
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index 3f0fdd1..856b3cc 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -489,4 +489,4 @@ MODULE_DESCRIPTION("VIA PadLock AES algorithm support");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michal Ludvig");
-MODULE_ALIAS("aes-all");
+MODULE_ALIAS("aes");
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
index c31afbd..c41f339 100644
--- a/drivers/gpu/drm/r128/r128_cce.c
+++ b/drivers/gpu/drm/r128/r128_cce.c
@@ -511,9 +511,9 @@ static int r128_do_init_cce(struct drm_device * dev, drm_r128_init_t * init)
#if __OS_HAS_AGP
if (!dev_priv->is_pci) {
- drm_core_ioremap(dev_priv->cce_ring, dev);
- drm_core_ioremap(dev_priv->ring_rptr, dev);
- drm_core_ioremap(dev->agp_buffer_map, dev);
+ drm_core_ioremap_wc(dev_priv->cce_ring, dev);
+ drm_core_ioremap_wc(dev_priv->ring_rptr, dev);
+ drm_core_ioremap_wc(dev->agp_buffer_map, dev);
if (!dev_priv->cce_ring->handle ||
!dev_priv->ring_rptr->handle ||
!dev->agp_buffer_map->handle) {
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index f0a0f72..5e60131 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -765,7 +765,7 @@ static int usbhid_parse(struct hid_device *hid)
goto err;
}
- hid->quirks = quirks;
+ hid->quirks |= quirks;
return 0;
err:
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c
index b5e3b28..a1787fd 100644
--- a/drivers/hwmon/lm78.c
+++ b/drivers/hwmon/lm78.c
@@ -182,7 +182,7 @@ static struct platform_driver lm78_isa_driver = {
.name = "lm78",
},
.probe = lm78_isa_probe,
- .remove = lm78_isa_remove,
+ .remove = __devexit_p(lm78_isa_remove),
};
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index af70777..ff8229c 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -967,7 +967,7 @@ void ide_timer_expiry (unsigned long data)
}
spin_lock_irq(&hwif->lock);
enable_irq(hwif->irq);
- if (startstop == ide_stopped) {
+ if (startstop == ide_stopped && hwif->polling == 0) {
ide_unlock_port(hwif);
plug_device = 1;
}
@@ -1145,7 +1145,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
* same irq as is currently being serviced here, and Linux
* won't allow another of the same (on any CPU) until we return.
*/
- if (startstop == ide_stopped) {
+ if (startstop == ide_stopped && hwif->polling == 0) {
BUG_ON(hwif->handler);
ide_unlock_port(hwif);
plug_device = 1;
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index b1892bd..5defb72 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -587,8 +587,6 @@ EXPORT_SYMBOL_GPL(ide_in_drive_list);
/*
* Early UDMA66 devices don't set bit14 to 1, only bit13 is valid.
- * We list them here and depend on the device side cable detection for them.
- *
* Some optical devices with the buggy firmwares have the same problem.
*/
static const struct drive_list_entry ivb_list[] = {
@@ -632,10 +630,25 @@ u8 eighty_ninty_three (ide_drive_t *drive)
* - force bit13 (80c cable present) check also for !ivb devices
* (unless the slave device is pre-ATA3)
*/
- if ((id[ATA_ID_HW_CONFIG] & 0x4000) ||
- (ivb && (id[ATA_ID_HW_CONFIG] & 0x2000)))
+ if (id[ATA_ID_HW_CONFIG] & 0x4000)
return 1;
+ if (ivb) {
+ const char *model = (char *)&id[ATA_ID_PROD];
+
+ if (strstr(model, "TSSTcorp CDDVDW SH-S202")) {
+ /*
+ * These ATAPI devices always report 80c cable
+ * so we have to depend on the host in this case.
+ */
+ if (hwif->cbl == ATA_CBL_PATA80)
+ return 1;
+ } else {
+ /* Depend on the device side cable detection. */
+ if (id[ATA_ID_HW_CONFIG] & 0x2000)
+ return 1;
+ }
+ }
no_80w:
if (drive->dev_flags & IDE_DFLAG_UDMA33_WARNED)
return 0;
diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
index bddae2b..515fd4e 100644
--- a/drivers/ide/ide-pci-generic.c
+++ b/drivers/ide/ide-pci-generic.c
@@ -35,6 +35,16 @@ MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE st
#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
+static void netcell_quirkproc(ide_drive_t *drive)
+{
+ /* mark words 85-87 as valid */
+ drive->id[ATA_ID_CSF_DEFAULT] |= 0x4000;
+}
+
+static const struct ide_port_ops netcell_port_ops = {
+ .quirkproc = netcell_quirkproc,
+};
+
#define DECLARE_GENERIC_PCI_DEV(extra_flags) \
{ \
.name = DRV_NAME, \
@@ -76,6 +86,7 @@ static const struct ide_port_info generic_chipsets[] __devinitdata = {
{ /* 6: Revolution */
.name = DRV_NAME,
+ .port_ops = &netcell_port_ops,
.host_flags = IDE_HFLAG_CLEAR_SIMPLEX |
IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 4e6181c..af7860c 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -654,12 +654,6 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
{
idetape_tape_t *tape = drive->driver_data;
- if (drive->pc->c[0] == REQUEST_SENSE &&
- pc->c[0] == REQUEST_SENSE) {
- printk(KERN_ERR "ide-tape: possible ide-tape.c bug - "
- "Two request sense in serial were issued\n");
- }
-
if (tape->failed_pc == NULL && pc->c[0] != REQUEST_SENSE)
tape->failed_pc = pc;
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 6d9f810..635c787 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -184,7 +184,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
/* Calculate flash page address; use block erase (for speed) if
* we're at a block boundary and need to erase the whole block.
*/
- pageaddr = div_u64(instr->len, priv->page_size);
+ pageaddr = div_u64(instr->addr, priv->page_size);
do_block = (pageaddr & 0x7) == 0 && instr->len >= blocksize;
pageaddr = pageaddr << priv->page_offset;
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 471baaf..ac7b12c 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -100,7 +100,7 @@ obj-$(CONFIG_HAMACHI) += hamachi.o
obj-$(CONFIG_NET) += Space.o loopback.o
obj-$(CONFIG_SEEQ8005) += seeq8005.o
obj-$(CONFIG_NET_SB1000) += sb1000.o
-obj-$(CONFIG_MAC8390) += mac8390.o 8390.o
+obj-$(CONFIG_MAC8390) += mac8390.o
obj-$(CONFIG_APNE) += apne.o 8390.o
obj-$(CONFIG_PCMCIA_PCNET) += 8390.o
obj-$(CONFIG_HP100) += hp100.o
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 6b6530f..a7e688a 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -2585,6 +2585,7 @@ bnx2_get_hw_tx_cons(struct bnx2_napi *bnapi)
/* Tell compiler that status block fields can change. */
barrier();
cons = *bnapi->hw_tx_cons_ptr;
+ barrier();
if (unlikely((cons & MAX_TX_DESC_CNT) == MAX_TX_DESC_CNT))
cons++;
return cons;
@@ -2864,6 +2865,7 @@ bnx2_get_hw_rx_cons(struct bnx2_napi *bnapi)
/* Tell compiler that status block fields can change. */
barrier();
cons = *bnapi->hw_rx_cons_ptr;
+ barrier();
if (unlikely((cons & MAX_RX_DESC_CNT) == MAX_RX_DESC_CNT))
cons++;
return cons;
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 27fb7f5..77da4c5 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -370,8 +370,6 @@ static int rlb_arp_recv(struct sk_buff *skb, struct net_device *bond_dev, struct
if (arp->op_code == htons(ARPOP_REPLY)) {
/* update rx hash table for this ARP */
- printk("rar: update orig %s bond_dev %s\n", orig_dev->name,
- bond_dev->name);
bond = netdev_priv(bond_dev);
rlb_update_entry_from_arp(bond, arp);
pr_debug("Server received an ARP Reply from client\n");
@@ -1739,9 +1737,6 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr)
}
}
- write_unlock_bh(&bond->curr_slave_lock);
- read_unlock(&bond->lock);
-
if (swap_slave) {
alb_swap_mac_addr(bond, swap_slave, bond->curr_active_slave);
alb_fasten_mac_swap(bond, swap_slave, bond->curr_active_slave);
@@ -1749,16 +1744,15 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr)
alb_set_slave_mac_addr(bond->curr_active_slave, bond_dev->dev_addr,
bond->alb_info.rlb_enabled);
+ read_lock(&bond->lock);
alb_send_learning_packets(bond->curr_active_slave, bond_dev->dev_addr);
if (bond->alb_info.rlb_enabled) {
/* inform clients mac address has changed */
rlb_req_update_slave_clients(bond, bond->curr_active_slave);
}
+ read_unlock(&bond->lock);
}
- read_lock(&bond->lock);
- write_lock_bh(&bond->curr_slave_lock);
-
return 0;
}
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index d436e27..df6459c 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4009,8 +4009,9 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
PCI_DMA_FROMDEVICE);
length = le16_to_cpu(rx_desc->length);
-
- if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
+ /* !EOP means multiple descriptors were used to store a single
+ * packet, also make sure the frame isn't just CRC only */
+ if (unlikely(!(status & E1000_RXD_STAT_EOP) || (length <= 4))) {
/* All receives must fit into a single buffer */
E1000_DBG("%s: Receive packet consumed multiple"
" buffers\n", netdev->name);
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 3c831f1..44ceb36 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -2024,6 +2024,10 @@ static struct ethtool_ops igb_ethtool_ops = {
.get_ethtool_stats = igb_get_ethtool_stats,
.get_coalesce = igb_get_coalesce,
.set_coalesce = igb_set_coalesce,
+ .get_flags = ethtool_op_get_flags,
+#ifdef CONFIG_IGB_LRO
+ .set_flags = ethtool_op_set_flags,
+#endif
};
void igb_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/mac8390.c b/drivers/net/mac8390.c
index 8e88486..f26667d 100644
--- a/drivers/net/mac8390.c
+++ b/drivers/net/mac8390.c
@@ -304,7 +304,7 @@ struct net_device * __init mac8390_probe(int unit)
if (!MACH_IS_MAC)
return ERR_PTR(-ENODEV);
- dev = alloc_ei_netdev();
+ dev = ____alloc_ei_netdev(0);
if (!dev)
return ERR_PTR(-ENOMEM);
@@ -481,10 +481,10 @@ void cleanup_module(void)
static const struct net_device_ops mac8390_netdev_ops = {
.ndo_open = mac8390_open,
.ndo_stop = mac8390_close,
- .ndo_start_xmit = ei_start_xmit,
- .ndo_tx_timeout = ei_tx_timeout,
- .ndo_get_stats = ei_get_stats,
- .ndo_set_multicast_list = ei_set_multicast_list,
+ .ndo_start_xmit = __ei_start_xmit,
+ .ndo_tx_timeout = __ei_tx_timeout,
+ .ndo_get_stats = __ei_get_stats,
+ .ndo_set_multicast_list = __ei_set_multicast_list,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_change_mtu = eth_change_mtu,
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 7e24b50..f5824af 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -329,7 +329,8 @@ static u32 macvlan_ethtool_get_rx_csum(struct net_device *dev)
const struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
- if (lowerdev->ethtool_ops->get_rx_csum == NULL)
+ if (lowerdev->ethtool_ops == NULL ||
+ lowerdev->ethtool_ops->get_rx_csum == NULL)
return 0;
return lowerdev->ethtool_ops->get_rx_csum(lowerdev);
}
@@ -340,7 +341,8 @@ static int macvlan_ethtool_get_settings(struct net_device *dev,
const struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
- if (!lowerdev->ethtool_ops->get_settings)
+ if (!lowerdev->ethtool_ops ||
+ !lowerdev->ethtool_ops->get_settings)
return -EOPNOTSUPP;
return lowerdev->ethtool_ops->get_settings(lowerdev, cmd);
@@ -351,7 +353,8 @@ static u32 macvlan_ethtool_get_flags(struct net_device *dev)
const struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
- if (!lowerdev->ethtool_ops->get_flags)
+ if (!lowerdev->ethtool_ops ||
+ !lowerdev->ethtool_ops->get_flags)
return 0;
return lowerdev->ethtool_ops->get_flags(lowerdev);
}
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index e9c1296..53ff238 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -2446,6 +2446,7 @@ static int myri10ge_open(struct net_device *dev)
lro_mgr->lro_arr = ss->rx_done.lro_desc;
lro_mgr->get_frag_header = myri10ge_get_frag_header;
lro_mgr->max_aggr = myri10ge_lro_max_pkts;
+ lro_mgr->frag_align_pad = 2;
if (lro_mgr->max_aggr > MAX_SKB_FRAGS)
lro_mgr->max_aggr = MAX_SKB_FRAGS;
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 9201e5a..0b8ec7f 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -3554,54 +3554,64 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
int handled = 0;
int status;
+ /* loop handling interrupts until we have no new ones or
+ * we hit a invalid/hotplug case.
+ */
status = RTL_R16(IntrStatus);
+ while (status && status != 0xffff) {
+ handled = 1;
- /* hotplug/major error/no more work/shared irq */
- if ((status == 0xffff) || !status)
- goto out;
-
- handled = 1;
+ /* Handle all of the error cases first. These will reset
+ * the chip, so just exit the loop.
+ */
+ if (unlikely(!netif_running(dev))) {
+ rtl8169_asic_down(ioaddr);
+ break;
+ }
- if (unlikely(!netif_running(dev))) {
- rtl8169_asic_down(ioaddr);
- goto out;
- }
+ /* Work around for rx fifo overflow */
+ if (unlikely(status & RxFIFOOver) &&
+ (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
+ netif_stop_queue(dev);
+ rtl8169_tx_timeout(dev);
+ break;
+ }
- status &= tp->intr_mask;
- RTL_W16(IntrStatus,
- (status & RxFIFOOver) ? (status | RxOverflow) : status);
+ if (unlikely(status & SYSErr)) {
+ rtl8169_pcierr_interrupt(dev);
+ break;
+ }
- if (!(status & tp->intr_event))
- goto out;
+ if (status & LinkChg)
+ rtl8169_check_link_status(dev, tp, ioaddr);
- /* Work around for rx fifo overflow */
- if (unlikely(status & RxFIFOOver) &&
- (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
- netif_stop_queue(dev);
- rtl8169_tx_timeout(dev);
- goto out;
- }
+ /* We need to see the lastest version of tp->intr_mask to
+ * avoid ignoring an MSI interrupt and having to wait for
+ * another event which may never come.
+ */
+ smp_rmb();
+ if (status & tp->intr_mask & tp->napi_event) {
+ RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
+ tp->intr_mask = ~tp->napi_event;
+
+ if (likely(netif_rx_schedule_prep(&tp->napi)))
+ __netif_rx_schedule(&tp->napi);
+ else if (netif_msg_intr(tp)) {
+ printk(KERN_INFO "%s: interrupt %04x in poll\n",
+ dev->name, status);
+ }
+ }
- if (unlikely(status & SYSErr)) {
- rtl8169_pcierr_interrupt(dev);
- goto out;
+ /* We only get a new MSI interrupt when all active irq
+ * sources on the chip have been acknowledged. So, ack
+ * everything we've seen and check if new sources have become
+ * active to avoid blocking all interrupts from the chip.
+ */
+ RTL_W16(IntrStatus,
+ (status & RxFIFOOver) ? (status | RxOverflow) : status);
+ status = RTL_R16(IntrStatus);
}
- if (status & LinkChg)
- rtl8169_check_link_status(dev, tp, ioaddr);
-
- if (status & tp->napi_event) {
- RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
- tp->intr_mask = ~tp->napi_event;
-
- if (likely(netif_rx_schedule_prep(&tp->napi)))
- __netif_rx_schedule(&tp->napi);
- else if (netif_msg_intr(tp)) {
- printk(KERN_INFO "%s: interrupt %04x in poll\n",
- dev->name, status);
- }
- }
-out:
return IRQ_RETVAL(handled);
}
@@ -3617,13 +3627,15 @@ static int rtl8169_poll(struct napi_struct *napi, int budget)
if (work_done < budget) {
netif_rx_complete(napi);
- tp->intr_mask = 0xffff;
- /*
- * 20040426: the barrier is not strictly required but the
- * behavior of the irq handler could be less predictable
- * without it. Btw, the lack of flush for the posted pci
- * write is safe - FR
+
+ /* We need for force the visibility of tp->intr_mask
+ * for other CPUs, as we can loose an MSI interrupt
+ * and potentially wait for a retransmit timeout if we don't.
+ * The posted write to IntrMask is safe, as it will
+ * eventually make it to the chip and we won't loose anything
+ * until it does.
*/
+ tp->intr_mask = 0xffff;
smp_wmb();
RTL_W16(IntrMask, tp->intr_event);
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 70a8b21..ab621b0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -708,6 +708,14 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
{
unsigned long flags;
int ret = 0;
+ __le16 key_flags = 0;
+
+ key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
+ key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ if (sta_id == priv->hw_params.bcast_sta_id)
+ key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
@@ -727,6 +735,9 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for new kew");
+ priv->stations[sta_id].sta.key.key_flags = key_flags;
+
+
/* This copy is acutally not needed: we get the key with each TX */
memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
@@ -743,9 +754,7 @@ void iwl_update_tkip_key(struct iwl_priv *priv,
{
u8 sta_id = IWL_INVALID_STATION;
unsigned long flags;
- __le16 key_flags = 0;
int i;
- DECLARE_MAC_BUF(mac);
sta_id = iwl_find_station(priv, addr);
if (sta_id == IWL_INVALID_STATION) {
@@ -760,16 +769,8 @@ void iwl_update_tkip_key(struct iwl_priv *priv,
return;
}
- key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
- key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
- key_flags &= ~STA_KEY_FLG_INVALID;
-
- if (sta_id == priv->hw_params.bcast_sta_id)
- key_flags |= STA_KEY_MULTICAST_MSK;
-
spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.key.key_flags = key_flags;
priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
for (i = 0; i < 5; i++)
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index c03f1d2..faa0fcf 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -6,7 +6,7 @@
Arnaldo Carvalho de Melo <acme@...ectiva.com.br>
Brad Strand <linux@...re.com>
- Copyright (C) 1999-2007 3ware Inc.
+ Copyright (C) 1999-2009 3ware Inc.
Kernel compatiblity By: Andre Hedrick <andre@...e.com>
Non-Copyright (C) 2000 Andre Hedrick <andre@...e.com>
@@ -1294,7 +1294,8 @@ static void tw_unmap_scsi_data(struct pci_dev *pdev, struct scsi_cmnd *cmd)
{
dprintk(KERN_WARNING "3w-xxxx: tw_unmap_scsi_data()\n");
- scsi_dma_unmap(cmd);
+ if (cmd->SCp.phase == TW_PHASE_SGLIST)
+ scsi_dma_unmap(cmd);
} /* End tw_unmap_scsi_data() */
/* This function will reset a device extension */
diff --git a/drivers/scsi/3w-xxxx.h b/drivers/scsi/3w-xxxx.h
index 0742e68..e938615 100644
--- a/drivers/scsi/3w-xxxx.h
+++ b/drivers/scsi/3w-xxxx.h
@@ -6,7 +6,7 @@
Arnaldo Carvalho de Melo <acme@...ectiva.com.br>
Brad Strand <linux@...re.com>
- Copyright (C) 1999-2007 3ware Inc.
+ Copyright (C) 1999-2009 3ware Inc.
Kernel compatiblity By: Andre Hedrick <andre@...e.com>
Non-Copyright (C) 2000 Andre Hedrick <andre@...e.com>
diff --git a/drivers/serial/icom.c b/drivers/serial/icom.c
index 2b7531d..08eefec 100644
--- a/drivers/serial/icom.c
+++ b/drivers/serial/icom.c
@@ -1482,8 +1482,8 @@ static void icom_remove_adapter(struct icom_adapter *icom_adapter)
free_irq(icom_adapter->pci_dev->irq, (void *) icom_adapter);
iounmap(icom_adapter->base_addr);
- icom_free_adapter(icom_adapter);
pci_release_regions(icom_adapter->pci_dev);
+ icom_free_adapter(icom_adapter);
}
static void icom_kref_release(struct kref *kref)
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 28d2c8d..28b07ce 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -988,7 +988,7 @@ mpc52xx_console_setup(struct console *co, char *options)
pr_debug("mpc52xx_console_setup co=%p, co->index=%i, options=%s\n",
co, co->index, options);
- if ((co->index < 0) || (co->index > MPC52xx_PSC_MAXNUM)) {
+ if ((co->index < 0) || (co->index >= MPC52xx_PSC_MAXNUM)) {
pr_debug("PSC%x out of range\n", co->index);
return -EINVAL;
}
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b3d5a23..7f2909a 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -546,10 +546,6 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
tty->driver_data = acm;
acm->tty = tty;
- /* force low_latency on so that our tty_push actually forces the data through,
- otherwise it is scheduled, and with high data rates data can get lost. */
- tty->low_latency = 1;
-
if (usb_autopm_get_interface(acm->control) < 0)
goto early_bail;
else
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index b899f1a..f14d74f 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1644,6 +1644,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
u32 reg_base, or_reg, skip_reg;
unsigned long flags;
struct ptd ptd;
+ packet_enqueue *pe;
switch (usb_pipetype(urb->pipe)) {
case PIPE_ISOCHRONOUS:
@@ -1655,6 +1656,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
reg_base = INT_REGS_OFFSET;
or_reg = HC_INT_IRQ_MASK_OR_REG;
skip_reg = HC_INT_PTD_SKIPMAP_REG;
+ pe = enqueue_an_INT_packet;
break;
default:
@@ -1662,6 +1664,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
reg_base = ATL_REGS_OFFSET;
or_reg = HC_ATL_IRQ_MASK_OR_REG;
skip_reg = HC_ATL_PTD_SKIPMAP_REG;
+ pe = enqueue_an_ATL_packet;
break;
}
@@ -1673,6 +1676,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
u32 skip_map;
u32 or_map;
struct isp1760_qtd *qtd;
+ struct isp1760_qh *qh = ints->qh;
skip_map = isp1760_readl(hcd->regs + skip_reg);
skip_map |= 1 << i;
@@ -1685,8 +1689,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
priv_write_copy(priv, (u32 *)&ptd, hcd->regs + reg_base
+ i * sizeof(ptd), sizeof(ptd));
qtd = ints->qtd;
-
- clean_up_qtdlist(qtd);
+ qtd = clean_up_qtdlist(qtd);
free_mem(priv, ints->payload);
@@ -1697,7 +1700,24 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
ints->payload = 0;
isp1760_urb_done(priv, urb, status);
+ if (qtd)
+ pe(hcd, qh, qtd);
break;
+
+ } else if (ints->qtd) {
+ struct isp1760_qtd *qtd, *prev_qtd = ints->qtd;
+
+ for (qtd = ints->qtd->hw_next; qtd; qtd = qtd->hw_next) {
+ if (qtd->urb == urb) {
+ prev_qtd->hw_next = clean_up_qtdlist(qtd);
+ isp1760_urb_done(priv, urb, status);
+ break;
+ }
+ prev_qtd = qtd;
+ }
+ /* we found the urb before the end of the list */
+ if (qtd)
+ break;
}
ints++;
}
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 5daa517..4423875 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1485,14 +1485,7 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port)
remove_sysfs_attrs(port);
- /* all open ports are closed at this point
- * (by usbserial.c:__serial_close, which calls ftdi_close)
- */
-
- if (priv) {
- usb_set_serial_port_data(port, NULL);
- kref_put(&priv->kref, ftdi_sio_priv_release);
- }
+ kref_put(&priv->kref, ftdi_sio_priv_release);
return 0;
}
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 4b36d88..61b7d9e 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -978,6 +978,7 @@ int usb_serial_probe(struct usb_interface *interface,
if (retval > 0) {
/* quietly accept this device, but don't bind to a
serial port as it's about to disappear */
+ serial->num_ports = 0;
goto exit;
}
}
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 90909f9..a2bd86e 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -248,6 +248,30 @@ struct flex_groups {
#define EXT4_FL_USER_VISIBLE 0x000BDFFF /* User visible flags */
#define EXT4_FL_USER_MODIFIABLE 0x000B80FF /* User modifiable flags */
+/* Flags that should be inherited by new inodes from their parent. */
+#define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\
+ EXT4_SYNC_FL | EXT4_IMMUTABLE_FL | EXT4_APPEND_FL |\
+ EXT4_NODUMP_FL | EXT4_NOATIME_FL |\
+ EXT4_NOCOMPR_FL | EXT4_JOURNAL_DATA_FL |\
+ EXT4_NOTAIL_FL | EXT4_DIRSYNC_FL)
+
+/* Flags that are appropriate for regular files (all but dir-specific ones). */
+#define EXT4_REG_FLMASK (~(EXT4_DIRSYNC_FL | EXT4_TOPDIR_FL))
+
+/* Flags that are appropriate for non-directories/regular files. */
+#define EXT4_OTHER_FLMASK (EXT4_NODUMP_FL | EXT4_NOATIME_FL)
+
+/* Mask out flags that are inappropriate for the given type of inode. */
+static inline __u32 ext4_mask_flags(umode_t mode, __u32 flags)
+{
+ if (S_ISDIR(mode))
+ return flags;
+ else if (S_ISREG(mode))
+ return flags & EXT4_REG_FLMASK;
+ else
+ return flags & EXT4_OTHER_FLMASK;
+}
+
/*
* Inode dynamic state flags
*/
@@ -255,6 +279,7 @@ struct flex_groups {
#define EXT4_STATE_NEW 0x00000002 /* inode is newly created */
#define EXT4_STATE_XATTR 0x00000004 /* has in-inode xattrs */
#define EXT4_STATE_NO_EXPAND 0x00000008 /* No space for expansion */
+#define EXT4_STATE_DA_ALLOC_CLOSE 0x00000010 /* Alloc DA blks on close */
/* Used to pass group descriptor data when online resize is done */
struct ext4_new_group_input {
@@ -302,7 +327,9 @@ struct ext4_new_group_data {
#define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
#define EXT4_IOC_GROUP_ADD _IOW('f', 8, struct ext4_new_group_input)
#define EXT4_IOC_MIGRATE _IO('f', 9)
+ /* note ioctl 10 reserved for an early version of the FIEMAP ioctl */
/* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
+#define EXT4_IOC_ALLOC_DA_BLKS _IO('f', 12)
/*
* ioctl commands in 32 bit emulation
@@ -530,7 +557,7 @@ do { \
#define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */
#define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */
#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
-#define EXT4_MOUNT_RESERVATION 0x10000 /* Preallocation */
+#define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */
#define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */
#define EXT4_MOUNT_NOBH 0x40000 /* No bufferheads */
#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
@@ -1091,6 +1118,7 @@ extern int ext4_can_truncate(struct inode *inode);
extern void ext4_truncate(struct inode *);
extern void ext4_set_inode_flags(struct inode *);
extern void ext4_get_inode_flags(struct ext4_inode_info *);
+extern int ext4_alloc_da_blocks(struct inode *inode);
extern void ext4_set_aops(struct inode *inode);
extern int ext4_writepage_trans_blocks(struct inode *);
extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int idxblocks);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index e0aa4fe..8723d0b 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1740,11 +1740,13 @@ ext4_ext_put_in_cache(struct inode *inode, ext4_lblk_t block,
{
struct ext4_ext_cache *cex;
BUG_ON(len == 0);
+ spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
cex = &EXT4_I(inode)->i_cached_extent;
cex->ec_type = type;
cex->ec_block = block;
cex->ec_len = len;
cex->ec_start = start;
+ spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
}
/*
@@ -1801,12 +1803,17 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
struct ext4_extent *ex)
{
struct ext4_ext_cache *cex;
+ int ret = EXT4_EXT_CACHE_NO;
+ /*
+ * We borrow i_block_reservation_lock to protect i_cached_extent
+ */
+ spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
cex = &EXT4_I(inode)->i_cached_extent;
/* has cache valid data? */
if (cex->ec_type == EXT4_EXT_CACHE_NO)
- return EXT4_EXT_CACHE_NO;
+ goto errout;
BUG_ON(cex->ec_type != EXT4_EXT_CACHE_GAP &&
cex->ec_type != EXT4_EXT_CACHE_EXTENT);
@@ -1817,11 +1824,11 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
ext_debug("%u cached by %u:%u:%llu\n",
block,
cex->ec_block, cex->ec_len, cex->ec_start);
- return cex->ec_type;
+ ret = cex->ec_type;
}
-
- /* not in cache */
- return EXT4_EXT_CACHE_NO;
+errout:
+ spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+ return ret;
}
/*
@@ -2776,6 +2783,8 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
if (allocated > max_blocks)
allocated = max_blocks;
set_buffer_unwritten(bh_result);
+ bh_result->b_bdev = inode->i_sb->s_bdev;
+ bh_result->b_blocknr = newblock;
goto out2;
}
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index f731cb5..588af8c 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -33,9 +33,14 @@
*/
static int ext4_release_file(struct inode *inode, struct file *filp)
{
+ if (EXT4_I(inode)->i_state & EXT4_STATE_DA_ALLOC_CLOSE) {
+ ext4_alloc_da_blocks(inode);
+ EXT4_I(inode)->i_state &= ~EXT4_STATE_DA_ALLOC_CLOSE;
+ }
/* if we are the last writer on the inode, drop the block reservation */
if ((filp->f_mode & FMODE_WRITE) &&
- (atomic_read(&inode->i_writecount) == 1))
+ (atomic_read(&inode->i_writecount) == 1) &&
+ !EXT4_I(inode)->i_reserved_data_blocks)
{
down_write(&EXT4_I(inode)->i_data_sem);
ext4_discard_preallocations(inode);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 2d2b358..345cba1 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -720,11 +720,12 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode)
ret2 = find_group_flex(sb, dir, &group);
if (ret2 == -1) {
ret2 = find_group_other(sb, dir, &group);
- if (ret2 == 0 && once)
+ if (ret2 == 0 && once) {
once = 0;
printk(KERN_NOTICE "ext4: find_group_flex "
"failed, fallback succeeded dir %lu\n",
dir->i_ino);
+ }
}
goto got_group;
}
@@ -885,16 +886,12 @@ got:
ei->i_disksize = 0;
/*
- * Don't inherit extent flag from directory. We set extent flag on
- * newly created directory and file only if -o extent mount option is
- * specified
+ * Don't inherit extent flag from directory, amongst others. We set
+ * extent flag on newly created directory and file only if -o extent
+ * mount option is specified
*/
- ei->i_flags = EXT4_I(dir)->i_flags & ~(EXT4_INDEX_FL|EXT4_EXTENTS_FL);
- if (S_ISLNK(mode))
- ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL);
- /* dirsync only applies to directories */
- if (!S_ISDIR(mode))
- ei->i_flags &= ~EXT4_DIRSYNC_FL;
+ ei->i_flags =
+ ext4_mask_flags(mode, EXT4_I(dir)->i_flags & EXT4_FL_INHERITED);
ei->i_file_acl = 0;
ei->i_dtime = 0;
ei->i_block_group = group;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 2c0439d..725f20a 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1036,8 +1036,15 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used)
/* update per-inode reservations */
BUG_ON(used > EXT4_I(inode)->i_reserved_data_blocks);
EXT4_I(inode)->i_reserved_data_blocks -= used;
-
spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+
+ /*
+ * If we have done all the pending block allocations and if
+ * there aren't any writers on the inode, we can discard the
+ * inode's preallocations.
+ */
+ if (!total && (atomic_read(&inode->i_writecount) == 0))
+ ext4_discard_preallocations(inode);
}
/*
@@ -1069,6 +1076,7 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
int retval;
clear_buffer_mapped(bh);
+ clear_buffer_unwritten(bh);
/*
* Try to see if we can get the block without requesting
@@ -1099,6 +1107,18 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
return retval;
/*
+ * When we call get_blocks without the create flag, the
+ * BH_Unwritten flag could have gotten set if the blocks
+ * requested were part of a uninitialized extent. We need to
+ * clear this flag now that we are committed to convert all or
+ * part of the uninitialized extent to be an initialized
+ * extent. This is because we need to avoid the combination
+ * of BH_Unwritten and BH_Mapped flags being simultaneously
+ * set on the buffer_head.
+ */
+ clear_buffer_unwritten(bh);
+
+ /*
* New blocks allocate and/or writing to uninitialized extent
* will possibly result in updating i_data, so we take
* the write lock of i_data_sem, and call get_blocks()
@@ -2213,6 +2233,10 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
{
int ret = 0;
+ sector_t invalid_block = ~((sector_t) 0xffff);
+
+ if (invalid_block < ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es))
+ invalid_block = ~0;
BUG_ON(create == 0);
BUG_ON(bh_result->b_size != inode->i_sb->s_blocksize);
@@ -2234,11 +2258,18 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
/* not enough space to reserve */
return ret;
- map_bh(bh_result, inode->i_sb, 0);
+ map_bh(bh_result, inode->i_sb, invalid_block);
set_buffer_new(bh_result);
set_buffer_delay(bh_result);
} else if (ret > 0) {
bh_result->b_size = (ret << inode->i_blkbits);
+ /*
+ * With sub-block writes into unwritten extents
+ * we also need to mark the buffer as new so that
+ * the unwritten parts of the buffer gets correctly zeroed.
+ */
+ if (buffer_unwritten(bh_result))
+ set_buffer_new(bh_result);
ret = 0;
}
@@ -2816,6 +2847,48 @@ out:
return;
}
+/*
+ * Force all delayed allocation blocks to be allocated for a given inode.
+ */
+int ext4_alloc_da_blocks(struct inode *inode)
+{
+ if (!EXT4_I(inode)->i_reserved_data_blocks &&
+ !EXT4_I(inode)->i_reserved_meta_blocks)
+ return 0;
+
+ /*
+ * We do something simple for now. The filemap_flush() will
+ * also start triggering a write of the data blocks, which is
+ * not strictly speaking necessary (and for users of
+ * laptop_mode, not even desirable). However, to do otherwise
+ * would require replicating code paths in:
+ *
+ * ext4_da_writepages() ->
+ * write_cache_pages() ---> (via passed in callback function)
+ * __mpage_da_writepage() -->
+ * mpage_add_bh_to_extent()
+ * mpage_da_map_blocks()
+ *
+ * The problem is that write_cache_pages(), located in
+ * mm/page-writeback.c, marks pages clean in preparation for
+ * doing I/O, which is not desirable if we're not planning on
+ * doing I/O at all.
+ *
+ * We could call write_cache_pages(), and then redirty all of
+ * the pages by calling redirty_page_for_writeback() but that
+ * would be ugly in the extreme. So instead we would need to
+ * replicate parts of the code in the above functions,
+ * simplifying them becuase we wouldn't actually intend to
+ * write out the pages, but rather only collect contiguous
+ * logical block extents, call the multi-block allocator, and
+ * then update the buffer heads with the block allocations.
+ *
+ * For now, though, we'll cheat by calling filemap_flush(),
+ * which will map the blocks, and start the I/O, but not
+ * actually wait for the I/O to complete.
+ */
+ return filemap_flush(inode->i_mapping);
+}
/*
* bmap() is special. It gets used by applications such as lilo and by
@@ -3838,6 +3911,9 @@ void ext4_truncate(struct inode *inode)
if (!ext4_can_truncate(inode))
return;
+ if (inode->i_size == 0 && !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC))
+ ei->i_state |= EXT4_STATE_DA_ALLOC_CLOSE;
+
if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
ext4_ext_truncate(inode);
return;
@@ -4248,11 +4324,9 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
ei->i_flags = le32_to_cpu(raw_inode->i_flags);
inode->i_blocks = ext4_inode_blocks(raw_inode, ei);
ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl_lo);
- if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
- cpu_to_le32(EXT4_OS_HURD)) {
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_64BIT))
ei->i_file_acl |=
((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
- }
inode->i_size = ext4_isize(raw_inode);
ei->i_disksize = inode->i_size;
inode->i_generation = le32_to_cpu(raw_inode->i_generation);
@@ -4299,6 +4373,18 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
(__u64)(le32_to_cpu(raw_inode->i_version_hi)) << 32;
}
+ if (ei->i_file_acl &&
+ ((ei->i_file_acl <
+ (le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block) +
+ EXT4_SB(sb)->s_gdb_count)) ||
+ (ei->i_file_acl >= ext4_blocks_count(EXT4_SB(sb)->s_es)))) {
+ ext4_error(sb, __func__,
+ "bad extended attribute block %llu in inode #%lu",
+ ei->i_file_acl, inode->i_ino);
+ ret = -EIO;
+ goto bad_inode;
+ }
+
if (S_ISREG(inode->i_mode)) {
inode->i_op = &ext4_file_inode_operations;
inode->i_fop = &ext4_file_operations;
@@ -4315,7 +4401,8 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
inode->i_op = &ext4_symlink_inode_operations;
ext4_set_aops(inode);
}
- } else {
+ } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
+ S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
inode->i_op = &ext4_special_inode_operations;
if (raw_inode->i_block[0])
init_special_inode(inode, inode->i_mode,
@@ -4323,6 +4410,13 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
else
init_special_inode(inode, inode->i_mode,
new_decode_dev(le32_to_cpu(raw_inode->i_block[1])));
+ } else {
+ brelse(bh);
+ ret = -EIO;
+ ext4_error(inode->i_sb, __func__,
+ "bogus i_mode (%o) for inode=%lu",
+ inode->i_mode, inode->i_ino);
+ goto bad_inode;
}
brelse(iloc.bh);
ext4_set_inode_flags(inode);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 42dc83f..91e75f7 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -48,8 +48,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
if (err)
return err;
- if (!S_ISDIR(inode->i_mode))
- flags &= ~EXT4_DIRSYNC_FL;
+ flags = ext4_mask_flags(inode->i_mode, flags);
err = -EPERM;
mutex_lock(&inode->i_mutex);
@@ -263,6 +262,20 @@ setversion_out:
return err;
}
+ case EXT4_IOC_ALLOC_DA_BLKS:
+ {
+ int err;
+ if (!is_owner_or_cap(inode))
+ return -EACCES;
+
+ err = mnt_want_write(filp->f_path.mnt);
+ if (err)
+ return err;
+ err = ext4_alloc_da_blocks(inode);
+ mnt_drop_write(filp->f_path.mnt);
+ return err;
+ }
+
default:
return -ENOTTY;
}
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index ba702bd..8977e60 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1052,8 +1052,16 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, stru
return ERR_PTR(-EIO);
}
inode = ext4_iget(dir->i_sb, ino);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
+ if (unlikely(IS_ERR(inode))) {
+ if (PTR_ERR(inode) == -ESTALE) {
+ ext4_error(dir->i_sb, __func__,
+ "deleted inode referenced: %u",
+ ino);
+ return ERR_PTR(-EIO);
+ } else {
+ return ERR_CAST(inode);
+ }
+ }
}
return d_splice_alias(inode, dentry);
}
@@ -2311,7 +2319,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *old_inode, *new_inode;
struct buffer_head *old_bh, *new_bh, *dir_bh;
struct ext4_dir_entry_2 *old_de, *new_de;
- int retval;
+ int retval, force_da_alloc = 0;
old_bh = new_bh = dir_bh = NULL;
@@ -2449,6 +2457,8 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
ext4_mark_inode_dirty(handle, new_inode);
if (!new_inode->i_nlink)
ext4_orphan_add(handle, new_inode);
+ if (!test_opt(new_dir->i_sb, NO_AUTO_DA_ALLOC))
+ force_da_alloc = 1;
}
retval = 0;
@@ -2457,6 +2467,8 @@ end_rename:
brelse(old_bh);
brelse(new_bh);
ext4_journal_stop(handle);
+ if (retval == 0 && force_da_alloc)
+ ext4_alloc_da_blocks(old_inode);
return retval;
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 39d1993..1ad3c20 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -803,8 +803,6 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT4_DEFM_ACL))
seq_puts(seq, ",noacl");
#endif
- if (!test_opt(sb, RESERVATION))
- seq_puts(seq, ",noreservation");
if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) {
seq_printf(seq, ",commit=%u",
(unsigned) (sbi->s_commit_interval / HZ));
@@ -855,6 +853,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
if (test_opt(sb, DATA_ERR_ABORT))
seq_puts(seq, ",data_err=abort");
+ if (test_opt(sb, NO_AUTO_DA_ALLOC))
+ seq_puts(seq, ",auto_da_alloc=0");
+
ext4_show_quota_options(seq, sb);
return 0;
}
@@ -1002,7 +1003,7 @@ enum {
Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro,
Opt_nouid32, Opt_debug, Opt_oldalloc, Opt_orlov,
Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl,
- Opt_reservation, Opt_noreservation, Opt_noload, Opt_nobh, Opt_bh,
+ Opt_auto_da_alloc, Opt_noload, Opt_nobh, Opt_bh,
Opt_commit, Opt_min_batch_time, Opt_max_batch_time,
Opt_journal_update, Opt_journal_dev,
Opt_journal_checksum, Opt_journal_async_commit,
@@ -1037,8 +1038,6 @@ static const match_table_t tokens = {
{Opt_nouser_xattr, "nouser_xattr"},
{Opt_acl, "acl"},
{Opt_noacl, "noacl"},
- {Opt_reservation, "reservation"},
- {Opt_noreservation, "noreservation"},
{Opt_noload, "noload"},
{Opt_nobh, "nobh"},
{Opt_bh, "bh"},
@@ -1073,6 +1072,7 @@ static const match_table_t tokens = {
{Opt_nodelalloc, "nodelalloc"},
{Opt_inode_readahead_blks, "inode_readahead_blks=%u"},
{Opt_journal_ioprio, "journal_ioprio=%u"},
+ {Opt_auto_da_alloc, "auto_da_alloc=%u"},
{Opt_err, NULL},
};
@@ -1205,12 +1205,6 @@ static int parse_options(char *options, struct super_block *sb,
"not supported\n");
break;
#endif
- case Opt_reservation:
- set_opt(sbi->s_mount_opt, RESERVATION);
- break;
- case Opt_noreservation:
- clear_opt(sbi->s_mount_opt, RESERVATION);
- break;
case Opt_journal_update:
/* @@@ FIXME */
/* Eventually we will want to be able to create
@@ -1471,6 +1465,14 @@ set_qf_format:
*journal_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE,
option);
break;
+ case Opt_auto_da_alloc:
+ if (match_int(&args[0], &option))
+ return 0;
+ if (option)
+ clear_opt(sbi->s_mount_opt, NO_AUTO_DA_ALLOC);
+ else
+ set_opt(sbi->s_mount_opt,NO_AUTO_DA_ALLOC);
+ break;
default:
printk(KERN_ERR
"EXT4-fs: Unrecognized mount option \"%s\" "
@@ -2099,7 +2101,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME;
sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME;
- set_opt(sbi->s_mount_opt, RESERVATION);
set_opt(sbi->s_mount_opt, BARRIER);
/*
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 257ff26..bbe6d59 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -55,6 +55,25 @@
* need do nothing.
* RevokeValid set, Revoked set:
* buffer has been revoked.
+ *
+ * Locking rules:
+ * We keep two hash tables of revoke records. One hashtable belongs to the
+ * running transaction (is pointed to by journal->j_revoke), the other one
+ * belongs to the committing transaction. Accesses to the second hash table
+ * happen only from the kjournald and no other thread touches this table. Also
+ * journal_switch_revoke_table() which switches which hashtable belongs to the
+ * running and which to the committing transaction is called only from
+ * kjournald. Therefore we need no locks when accessing the hashtable belonging
+ * to the committing transaction.
+ *
+ * All users operating on the hash table belonging to the running transaction
+ * have a handle to the transaction. Therefore they are safe from kjournald
+ * switching hash tables under them. For operations on the lists of entries in
+ * the hash table j_revoke_lock is used.
+ *
+ * Finally, also replay code uses the hash tables but at this moment noone else
+ * can touch them (filesystem isn't mounted yet) and hence no locking is
+ * needed.
*/
#ifndef __KERNEL__
@@ -401,8 +420,6 @@ int jbd2_journal_revoke(handle_t *handle, unsigned long long blocknr,
* the second time we would still have a pending revoke to cancel. So,
* do not trust the Revoked bit on buffers unless RevokeValid is also
* set.
- *
- * The caller must have the journal locked.
*/
int jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
{
@@ -480,10 +497,7 @@ void jbd2_journal_switch_revoke_table(journal_t *journal)
/*
* Write revoke records to the journal for all entries in the current
* revoke hash, deleting the entries as we go.
- *
- * Called with the journal lock held.
*/
-
void jbd2_journal_write_revoke_records(journal_t *journal,
transaction_t *transaction)
{
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 3b2f697..5dd75c0 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1943,7 +1943,8 @@ int nfs_permission(struct inode *inode, int mask)
case S_IFREG:
/* NFSv4 has atomic_open... */
if (nfs_server_capable(inode, NFS_CAP_ATOMIC_OPEN)
- && (mask & MAY_OPEN))
+ && (mask & MAY_OPEN)
+ && !(mask & MAY_EXEC))
goto out;
break;
case S_IFDIR:
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 98b93ca..1a2b0cb 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -94,6 +94,7 @@ extern void ptrace_notify(int exit_code);
extern void __ptrace_link(struct task_struct *child,
struct task_struct *new_parent);
extern void __ptrace_unlink(struct task_struct *child);
+extern int __ptrace_detach(struct task_struct *tracer, struct task_struct *p);
extern void ptrace_fork(struct task_struct *task, unsigned long clone_flags);
#define PTRACE_MODE_READ 1
#define PTRACE_MODE_ATTACH 2
diff --git a/kernel/exit.c b/kernel/exit.c
index 467ffcd..a33f399 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -703,22 +703,50 @@ static void exit_mm(struct task_struct * tsk)
}
/*
- * Return nonzero if @parent's children should reap themselves.
- *
- * Called with write_lock_irq(&tasklist_lock) held.
+ * Called with irqs disabled, returns true if childs should reap themselves.
*/
-static int ignoring_children(struct task_struct *parent)
+static int ignoring_children(struct sighand_struct *sigh)
{
int ret;
- struct sighand_struct *psig = parent->sighand;
- unsigned long flags;
- spin_lock_irqsave(&psig->siglock, flags);
- ret = (psig->action[SIGCHLD-1].sa.sa_handler == SIG_IGN ||
- (psig->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDWAIT));
- spin_unlock_irqrestore(&psig->siglock, flags);
+ spin_lock(&sigh->siglock);
+ ret = (sigh->action[SIGCHLD-1].sa.sa_handler == SIG_IGN) ||
+ (sigh->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDWAIT);
+ spin_unlock(&sigh->siglock);
return ret;
}
+/* Returns nonzero if the tracee should be released. */
+int __ptrace_detach(struct task_struct *tracer, struct task_struct *p)
+{
+ __ptrace_unlink(p);
+
+ if (p->exit_state != EXIT_ZOMBIE)
+ return 0;
+ /*
+ * If it's a zombie, our attachedness prevented normal
+ * parent notification or self-reaping. Do notification
+ * now if it would have happened earlier. If it should
+ * reap itself we return true.
+ *
+ * If it's our own child, there is no notification to do.
+ * But if our normal children self-reap, then this child
+ * was prevented by ptrace and we must reap it now.
+ */
+ if (!task_detached(p) && thread_group_empty(p)) {
+ if (!same_thread_group(p->real_parent, tracer))
+ do_notify_parent(p, p->exit_signal);
+ else if (ignoring_children(tracer->sighand))
+ p->exit_signal = -1;
+ }
+
+ if (!task_detached(p))
+ return 0;
+
+ /* Mark it as in the process of being reaped. */
+ p->exit_state = EXIT_DEAD;
+ return 1;
+}
+
/*
* Detach all tasks we were using ptrace on.
* Any that need to be release_task'd are put on the @dead list.
@@ -728,43 +756,10 @@ static int ignoring_children(struct task_struct *parent)
static void ptrace_exit(struct task_struct *parent, struct list_head *dead)
{
struct task_struct *p, *n;
- int ign = -1;
list_for_each_entry_safe(p, n, &parent->ptraced, ptrace_entry) {
- __ptrace_unlink(p);
-
- if (p->exit_state != EXIT_ZOMBIE)
- continue;
-
- /*
- * If it's a zombie, our attachedness prevented normal
- * parent notification or self-reaping. Do notification
- * now if it would have happened earlier. If it should
- * reap itself, add it to the @dead list. We can't call
- * release_task() here because we already hold tasklist_lock.
- *
- * If it's our own child, there is no notification to do.
- * But if our normal children self-reap, then this child
- * was prevented by ptrace and we must reap it now.
- */
- if (!task_detached(p) && thread_group_empty(p)) {
- if (!same_thread_group(p->real_parent, parent))
- do_notify_parent(p, p->exit_signal);
- else {
- if (ign < 0)
- ign = ignoring_children(parent);
- if (ign)
- p->exit_signal = -1;
- }
- }
-
- if (task_detached(p)) {
- /*
- * Mark it as in the process of being reaped.
- */
- p->exit_state = EXIT_DEAD;
+ if (__ptrace_detach(parent, p))
list_add(&p->ptrace_entry, dead);
- }
}
}
diff --git a/kernel/futex.c b/kernel/futex.c
index 438701a..2844297 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -192,6 +192,7 @@ static void drop_futex_key_refs(union futex_key *key)
* @shared: NULL for a PROCESS_PRIVATE futex,
* ¤t->mm->mmap_sem for a PROCESS_SHARED futex
* @key: address where result is stored.
+ * @rw: mapping needs to be read/write (values: VERIFY_READ, VERIFY_WRITE)
*
* Returns a negative error code or 0
* The key words are stored in *key on success.
@@ -204,7 +205,8 @@ static void drop_futex_key_refs(union futex_key *key)
* For other futexes, it points to ¤t->mm->mmap_sem and
* caller must have taken the reader lock. but NOT any spinlocks.
*/
-static int get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key)
+static int
+get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
{
unsigned long address = (unsigned long)uaddr;
struct mm_struct *mm = current->mm;
@@ -227,7 +229,7 @@ static int get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key)
* but access_ok() should be faster than find_vma()
*/
if (!fshared) {
- if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
+ if (unlikely(!access_ok(rw, uaddr, sizeof(u32))))
return -EFAULT;
key->private.mm = mm;
key->private.address = address;
@@ -236,7 +238,7 @@ static int get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key)
}
again:
- err = get_user_pages_fast(address, 1, 0, &page);
+ err = get_user_pages_fast(address, 1, rw == VERIFY_WRITE, &page);
if (err < 0)
return err;
@@ -707,7 +709,7 @@ static int futex_wake(u32 __user *uaddr, int fshared, int nr_wake, u32 bitset)
if (!bitset)
return -EINVAL;
- ret = get_futex_key(uaddr, fshared, &key);
+ ret = get_futex_key(uaddr, fshared, &key, VERIFY_READ);
if (unlikely(ret != 0))
goto out;
@@ -753,10 +755,10 @@ futex_wake_op(u32 __user *uaddr1, int fshared, u32 __user *uaddr2,
int ret, op_ret, attempt = 0;
retryfull:
- ret = get_futex_key(uaddr1, fshared, &key1);
+ ret = get_futex_key(uaddr1, fshared, &key1, VERIFY_READ);
if (unlikely(ret != 0))
goto out;
- ret = get_futex_key(uaddr2, fshared, &key2);
+ ret = get_futex_key(uaddr2, fshared, &key2, VERIFY_WRITE);
if (unlikely(ret != 0))
goto out_put_key1;
@@ -859,10 +861,10 @@ static int futex_requeue(u32 __user *uaddr1, int fshared, u32 __user *uaddr2,
int ret, drop_count = 0;
retry:
- ret = get_futex_key(uaddr1, fshared, &key1);
+ ret = get_futex_key(uaddr1, fshared, &key1, VERIFY_READ);
if (unlikely(ret != 0))
goto out;
- ret = get_futex_key(uaddr2, fshared, &key2);
+ ret = get_futex_key(uaddr2, fshared, &key2, VERIFY_WRITE);
if (unlikely(ret != 0))
goto out_put_key1;
@@ -1181,7 +1183,7 @@ static int futex_wait(u32 __user *uaddr, int fshared,
q.bitset = bitset;
retry:
q.key = FUTEX_KEY_INIT;
- ret = get_futex_key(uaddr, fshared, &q.key);
+ ret = get_futex_key(uaddr, fshared, &q.key, VERIFY_READ);
if (unlikely(ret != 0))
goto out;
@@ -1370,7 +1372,7 @@ static int futex_lock_pi(u32 __user *uaddr, int fshared,
q.pi_state = NULL;
retry:
q.key = FUTEX_KEY_INIT;
- ret = get_futex_key(uaddr, fshared, &q.key);
+ ret = get_futex_key(uaddr, fshared, &q.key, VERIFY_WRITE);
if (unlikely(ret != 0))
goto out;
@@ -1630,7 +1632,7 @@ retry:
if ((uval & FUTEX_TID_MASK) != task_pid_vnr(current))
return -EPERM;
- ret = get_futex_key(uaddr, fshared, &key);
+ ret = get_futex_key(uaddr, fshared, &key, VERIFY_WRITE);
if (unlikely(ret != 0))
goto out;
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index dc3b98e..893c2c7 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -235,18 +235,10 @@ out:
return retval;
}
-static inline void __ptrace_detach(struct task_struct *child, unsigned int data)
-{
- child->exit_code = data;
- /* .. re-parent .. */
- __ptrace_unlink(child);
- /* .. and wake it up. */
- if (child->exit_state != EXIT_ZOMBIE)
- wake_up_process(child);
-}
-
int ptrace_detach(struct task_struct *child, unsigned int data)
{
+ int dead = 0;
+
if (!valid_signal(data))
return -EIO;
@@ -256,10 +248,19 @@ int ptrace_detach(struct task_struct *child, unsigned int data)
write_lock_irq(&tasklist_lock);
/* protect against de_thread()->release_task() */
- if (child->ptrace)
- __ptrace_detach(child, data);
+ if (child->ptrace) {
+ child->exit_code = data;
+
+ dead = __ptrace_detach(current, child);
+
+ if (!child->exit_state)
+ wake_up_process(child);
+ }
write_unlock_irq(&tasklist_lock);
+ if (unlikely(dead))
+ release_task(child);
+
return 0;
}
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 107da3d..2a9129b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -316,7 +316,7 @@ static void resv_map_release(struct kref *ref)
static struct resv_map *vma_resv_map(struct vm_area_struct *vma)
{
VM_BUG_ON(!is_vm_hugetlb_page(vma));
- if (!(vma->vm_flags & VM_SHARED))
+ if (!(vma->vm_flags & VM_MAYSHARE))
return (struct resv_map *)(get_vma_private_data(vma) &
~HPAGE_RESV_MASK);
return NULL;
@@ -325,7 +325,7 @@ static struct resv_map *vma_resv_map(struct vm_area_struct *vma)
static void set_vma_resv_map(struct vm_area_struct *vma, struct resv_map *map)
{
VM_BUG_ON(!is_vm_hugetlb_page(vma));
- VM_BUG_ON(vma->vm_flags & VM_SHARED);
+ VM_BUG_ON(vma->vm_flags & VM_MAYSHARE);
set_vma_private_data(vma, (get_vma_private_data(vma) &
HPAGE_RESV_MASK) | (unsigned long)map);
@@ -334,7 +334,7 @@ static void set_vma_resv_map(struct vm_area_struct *vma, struct resv_map *map)
static void set_vma_resv_flags(struct vm_area_struct *vma, unsigned long flags)
{
VM_BUG_ON(!is_vm_hugetlb_page(vma));
- VM_BUG_ON(vma->vm_flags & VM_SHARED);
+ VM_BUG_ON(vma->vm_flags & VM_MAYSHARE);
set_vma_private_data(vma, get_vma_private_data(vma) | flags);
}
@@ -353,7 +353,7 @@ static void decrement_hugepage_resv_vma(struct hstate *h,
if (vma->vm_flags & VM_NORESERVE)
return;
- if (vma->vm_flags & VM_SHARED) {
+ if (vma->vm_flags & VM_MAYSHARE) {
/* Shared mappings always use reserves */
h->resv_huge_pages--;
} else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) {
@@ -369,14 +369,14 @@ static void decrement_hugepage_resv_vma(struct hstate *h,
void reset_vma_resv_huge_pages(struct vm_area_struct *vma)
{
VM_BUG_ON(!is_vm_hugetlb_page(vma));
- if (!(vma->vm_flags & VM_SHARED))
+ if (!(vma->vm_flags & VM_MAYSHARE))
vma->vm_private_data = (void *)0;
}
/* Returns true if the VMA has associated reserve pages */
static int vma_has_reserves(struct vm_area_struct *vma)
{
- if (vma->vm_flags & VM_SHARED)
+ if (vma->vm_flags & VM_MAYSHARE)
return 1;
if (is_vma_resv_set(vma, HPAGE_RESV_OWNER))
return 1;
@@ -924,7 +924,7 @@ static int vma_needs_reservation(struct hstate *h,
struct address_space *mapping = vma->vm_file->f_mapping;
struct inode *inode = mapping->host;
- if (vma->vm_flags & VM_SHARED) {
+ if (vma->vm_flags & VM_MAYSHARE) {
pgoff_t idx = vma_hugecache_offset(h, vma, addr);
return region_chg(&inode->i_mapping->private_list,
idx, idx + 1);
@@ -949,7 +949,7 @@ static void vma_commit_reservation(struct hstate *h,
struct address_space *mapping = vma->vm_file->f_mapping;
struct inode *inode = mapping->host;
- if (vma->vm_flags & VM_SHARED) {
+ if (vma->vm_flags & VM_MAYSHARE) {
pgoff_t idx = vma_hugecache_offset(h, vma, addr);
region_add(&inode->i_mapping->private_list, idx, idx + 1);
@@ -1893,7 +1893,7 @@ retry_avoidcopy:
* at the time of fork() could consume its reserves on COW instead
* of the full address range.
*/
- if (!(vma->vm_flags & VM_SHARED) &&
+ if (!(vma->vm_flags & VM_MAYSHARE) &&
is_vma_resv_set(vma, HPAGE_RESV_OWNER) &&
old_page != pagecache_page)
outside_reserve = 1;
@@ -2000,7 +2000,7 @@ retry:
clear_huge_page(page, address, huge_page_size(h));
__SetPageUptodate(page);
- if (vma->vm_flags & VM_SHARED) {
+ if (vma->vm_flags & VM_MAYSHARE) {
int err;
struct inode *inode = mapping->host;
@@ -2104,7 +2104,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
goto out_mutex;
}
- if (!(vma->vm_flags & VM_SHARED))
+ if (!(vma->vm_flags & VM_MAYSHARE))
pagecache_page = hugetlbfs_pagecache_page(h,
vma, address);
}
@@ -2289,7 +2289,7 @@ int hugetlb_reserve_pages(struct inode *inode,
* to reserve the full area even if read-only as mprotect() may be
* called to make the mapping read-write. Assume !vma is a shm mapping
*/
- if (!vma || vma->vm_flags & VM_SHARED)
+ if (!vma || vma->vm_flags & VM_MAYSHARE)
chg = region_chg(&inode->i_mapping->private_list, from, to);
else {
struct resv_map *resv_map = resv_map_alloc();
@@ -2330,7 +2330,7 @@ int hugetlb_reserve_pages(struct inode *inode,
* consumed reservations are stored in the map. Hence, nothing
* else has to be done for private mappings here
*/
- if (!vma || vma->vm_flags & VM_SHARED)
+ if (!vma || vma->vm_flags & VM_MAYSHARE)
region_add(&inode->i_mapping->private_list, from, to);
return 0;
}
diff --git a/mm/slub.c b/mm/slub.c
index 0280eee..5663da0 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -9,6 +9,7 @@
*/
#include <linux/mm.h>
+#include <linux/swap.h> /* struct reclaim_state */
#include <linux/module.h>
#include <linux/bit_spinlock.h>
#include <linux/interrupt.h>
@@ -1175,6 +1176,8 @@ static void __free_slab(struct kmem_cache *s, struct page *page)
__ClearPageSlab(page);
reset_page_mapcount(page);
+ if (current->reclaim_state)
+ current->reclaim_state->reclaimed_slab += pages;
__free_pages(page, order);
}
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 1b34135..6b09213 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -668,7 +668,8 @@ static int vlan_ethtool_get_settings(struct net_device *dev,
const struct vlan_dev_info *vlan = vlan_dev_info(dev);
struct net_device *real_dev = vlan->real_dev;
- if (!real_dev->ethtool_ops->get_settings)
+ if (!real_dev->ethtool_ops ||
+ !real_dev->ethtool_ops->get_settings)
return -EOPNOTSUPP;
return real_dev->ethtool_ops->get_settings(real_dev, cmd);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 6549848..c4070ec 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2447,7 +2447,7 @@ static inline void free_SAs(struct pktgen_dev *pkt_dev)
if (pkt_dev->cflows) {
/* let go of the SAs if we have them */
int i = 0;
- for (; i < pkt_dev->nflows; i++){
+ for (; i < pkt_dev->cflows; i++) {
struct xfrm_state *x = pkt_dev->flows[i].x;
if (x) {
xfrm_state_put(x);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index eae6954..f4bbc98 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2206,7 +2206,7 @@ unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
next_skb:
block_limit = skb_headlen(st->cur_skb) + st->stepped_offset;
- if (abs_offset < block_limit) {
+ if (abs_offset < block_limit && !st->frag_data) {
*data = st->cur_skb->data + (abs_offset - st->stepped_offset);
return block_limit - abs_offset;
}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 97f7115..4e302d1 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -784,8 +784,8 @@ static void rt_check_expire(void)
{
static unsigned int rover;
unsigned int i = rover, goal;
- struct rtable *rth, **rthp;
- unsigned long length = 0, samples = 0;
+ struct rtable *rth, *aux, **rthp;
+ unsigned long samples = 0;
unsigned long sum = 0, sum2 = 0;
u64 mult;
@@ -795,9 +795,9 @@ static void rt_check_expire(void)
goal = (unsigned int)mult;
if (goal > rt_hash_mask)
goal = rt_hash_mask + 1;
- length = 0;
for (; goal > 0; goal--) {
unsigned long tmo = ip_rt_gc_timeout;
+ unsigned long length;
i = (i + 1) & rt_hash_mask;
rthp = &rt_hash_table[i].chain;
@@ -809,8 +809,10 @@ static void rt_check_expire(void)
if (*rthp == NULL)
continue;
+ length = 0;
spin_lock_bh(rt_hash_lock_addr(i));
while ((rth = *rthp) != NULL) {
+ prefetch(rth->u.dst.rt_next);
if (rt_is_expired(rth)) {
*rthp = rth->u.dst.rt_next;
rt_free(rth);
@@ -819,33 +821,30 @@ static void rt_check_expire(void)
if (rth->u.dst.expires) {
/* Entry is expired even if it is in use */
if (time_before_eq(jiffies, rth->u.dst.expires)) {
+nofree:
tmo >>= 1;
rthp = &rth->u.dst.rt_next;
/*
- * Only bump our length if the hash
- * inputs on entries n and n+1 are not
- * the same, we only count entries on
+ * We only count entries on
* a chain with equal hash inputs once
* so that entries for different QOS
* levels, and other non-hash input
* attributes don't unfairly skew
* the length computation
*/
- if ((*rthp == NULL) ||
- !compare_hash_inputs(&(*rthp)->fl,
- &rth->fl))
- length += ONE;
+ for (aux = rt_hash_table[i].chain;;) {
+ if (aux == rth) {
+ length += ONE;
+ break;
+ }
+ if (compare_hash_inputs(&aux->fl, &rth->fl))
+ break;
+ aux = aux->u.dst.rt_next;
+ }
continue;
}
- } else if (!rt_may_expire(rth, tmo, ip_rt_gc_timeout)) {
- tmo >>= 1;
- rthp = &rth->u.dst.rt_next;
- if ((*rthp == NULL) ||
- !compare_hash_inputs(&(*rthp)->fl,
- &rth->fl))
- length += ONE;
- continue;
- }
+ } else if (!rt_may_expire(rth, tmo, ip_rt_gc_timeout))
+ goto nofree;
/* Cleanup aged off entries. */
*rthp = rth->u.dst.rt_next;
@@ -1068,7 +1067,6 @@ out: return 0;
static int rt_intern_hash(unsigned hash, struct rtable *rt, struct rtable **rp)
{
struct rtable *rth, **rthp;
- struct rtable *rthi;
unsigned long now;
struct rtable *cand, **candp;
u32 min_score;
@@ -1088,7 +1086,6 @@ restart:
}
rthp = &rt_hash_table[hash].chain;
- rthi = NULL;
spin_lock_bh(rt_hash_lock_addr(hash));
while ((rth = *rthp) != NULL) {
@@ -1134,17 +1131,6 @@ restart:
chain_length++;
rthp = &rth->u.dst.rt_next;
-
- /*
- * check to see if the next entry in the chain
- * contains the same hash input values as rt. If it does
- * This is where we will insert into the list, instead of
- * at the head. This groups entries that differ by aspects not
- * relvant to the hash function together, which we use to adjust
- * our chain length
- */
- if (*rthp && compare_hash_inputs(&(*rthp)->fl, &rt->fl))
- rthi = rth;
}
if (cand) {
@@ -1205,10 +1191,7 @@ restart:
}
}
- if (rthi)
- rt->u.dst.rt_next = rthi->u.dst.rt_next;
- else
- rt->u.dst.rt_next = rt_hash_table[hash].chain;
+ rt->u.dst.rt_next = rt_hash_table[hash].chain;
#if RT_CACHE_DEBUG >= 2
if (rt->u.dst.rt_next) {
@@ -1224,10 +1207,7 @@ restart:
* previous writes to rt are comitted to memory
* before making rt visible to other CPUS.
*/
- if (rthi)
- rcu_assign_pointer(rthi->u.dst.rt_next, rt);
- else
- rcu_assign_pointer(rt_hash_table[hash].chain, rt);
+ rcu_assign_pointer(rt_hash_table[hash].chain, rt);
spin_unlock_bh(rt_hash_lock_addr(hash));
*rp = rt;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 76b148b..b16dc84 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1286,6 +1286,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
struct task_struct *user_recv = NULL;
int copied_early = 0;
struct sk_buff *skb;
+ u32 urg_hole = 0;
lock_sock(sk);
@@ -1497,7 +1498,8 @@ do_prequeue:
}
}
}
- if ((flags & MSG_PEEK) && peek_seq != tp->copied_seq) {
+ if ((flags & MSG_PEEK) &&
+ (peek_seq - copied - urg_hole != tp->copied_seq)) {
if (net_ratelimit())
printk(KERN_DEBUG "TCP(%s:%d): Application bug, race in MSG_PEEK.\n",
current->comm, task_pid_nr(current));
@@ -1518,6 +1520,7 @@ do_prequeue:
if (!urg_offset) {
if (!sock_flag(sk, SOCK_URGINLINE)) {
++*seq;
+ urg_hole++;
offset++;
used--;
if (!used)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c28976a..fd4317e 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -927,6 +927,8 @@ static void tcp_init_metrics(struct sock *sk)
tcp_set_rto(sk);
if (inet_csk(sk)->icsk_rto < TCP_TIMEOUT_INIT && !tp->rx_opt.saw_tstamp)
goto reset;
+
+cwnd:
tp->snd_cwnd = tcp_init_cwnd(tp, dst);
tp->snd_cwnd_stamp = tcp_time_stamp;
return;
@@ -941,6 +943,7 @@ reset:
tp->mdev = tp->mdev_max = tp->rttvar = TCP_TIMEOUT_INIT;
inet_csk(sk)->icsk_rto = TCP_TIMEOUT_INIT;
}
+ goto cwnd;
}
static void tcp_update_reordering(struct sock *sk, const int metric,
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 3824990..d9233ec 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -476,8 +476,8 @@ minstrel_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
return NULL;
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
- sband = hw->wiphy->bands[hw->conf.channel->band];
- if (sband->n_bitrates > max_rates)
+ sband = hw->wiphy->bands[i];
+ if (sband && sband->n_bitrates > max_rates)
max_rates = sband->n_bitrates;
}
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index b16801c..8bef9a1 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -317,13 +317,44 @@ rate_control_pid_rate_init(void *priv, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
{
struct rc_pid_sta_info *spinfo = priv_sta;
+ struct rc_pid_info *pinfo = priv;
+ struct rc_pid_rateinfo *rinfo = pinfo->rinfo;
struct sta_info *si;
+ int i, j, tmp;
+ bool s;
/* TODO: This routine should consider using RSSI from previous packets
* as we need to have IEEE 802.1X auth succeed immediately after assoc..
* Until that method is implemented, we will use the lowest supported
* rate as a workaround. */
+ /* Sort the rates. This is optimized for the most common case (i.e.
+ * almost-sorted CCK+OFDM rates). Kind of bubble-sort with reversed
+ * mapping too. */
+ for (i = 0; i < sband->n_bitrates; i++) {
+ rinfo[i].index = i;
+ rinfo[i].rev_index = i;
+ if (RC_PID_FAST_START)
+ rinfo[i].diff = 0;
+ else
+ rinfo[i].diff = i * pinfo->norm_offset;
+ }
+ for (i = 1; i < sband->n_bitrates; i++) {
+ s = 0;
+ for (j = 0; j < sband->n_bitrates - i; j++)
+ if (unlikely(sband->bitrates[rinfo[j].index].bitrate >
+ sband->bitrates[rinfo[j + 1].index].bitrate)) {
+ tmp = rinfo[j].index;
+ rinfo[j].index = rinfo[j + 1].index;
+ rinfo[j + 1].index = tmp;
+ rinfo[rinfo[j].index].rev_index = j;
+ rinfo[rinfo[j + 1].index].rev_index = j + 1;
+ s = 1;
+ }
+ if (!s)
+ break;
+ }
+
spinfo->txrate_idx = rate_lowest_index(sband, sta);
/* HACK */
si = container_of(sta, struct sta_info, sta);
@@ -336,21 +367,22 @@ static void *rate_control_pid_alloc(struct ieee80211_hw *hw,
struct rc_pid_info *pinfo;
struct rc_pid_rateinfo *rinfo;
struct ieee80211_supported_band *sband;
- int i, j, tmp;
- bool s;
+ int i, max_rates = 0;
#ifdef CONFIG_MAC80211_DEBUGFS
struct rc_pid_debugfs_entries *de;
#endif
- sband = hw->wiphy->bands[hw->conf.channel->band];
-
pinfo = kmalloc(sizeof(*pinfo), GFP_ATOMIC);
if (!pinfo)
return NULL;
- /* We can safely assume that sband won't change unless we get
- * reinitialized. */
- rinfo = kmalloc(sizeof(*rinfo) * sband->n_bitrates, GFP_ATOMIC);
+ for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
+ sband = hw->wiphy->bands[i];
+ if (sband && sband->n_bitrates > max_rates)
+ max_rates = sband->n_bitrates;
+ }
+
+ rinfo = kmalloc(sizeof(*rinfo) * max_rates, GFP_ATOMIC);
if (!rinfo) {
kfree(pinfo);
return NULL;
@@ -368,33 +400,6 @@ static void *rate_control_pid_alloc(struct ieee80211_hw *hw,
pinfo->rinfo = rinfo;
pinfo->oldrate = 0;
- /* Sort the rates. This is optimized for the most common case (i.e.
- * almost-sorted CCK+OFDM rates). Kind of bubble-sort with reversed
- * mapping too. */
- for (i = 0; i < sband->n_bitrates; i++) {
- rinfo[i].index = i;
- rinfo[i].rev_index = i;
- if (RC_PID_FAST_START)
- rinfo[i].diff = 0;
- else
- rinfo[i].diff = i * pinfo->norm_offset;
- }
- for (i = 1; i < sband->n_bitrates; i++) {
- s = 0;
- for (j = 0; j < sband->n_bitrates - i; j++)
- if (unlikely(sband->bitrates[rinfo[j].index].bitrate >
- sband->bitrates[rinfo[j + 1].index].bitrate)) {
- tmp = rinfo[j].index;
- rinfo[j].index = rinfo[j + 1].index;
- rinfo[j + 1].index = tmp;
- rinfo[rinfo[j].index].rev_index = j;
- rinfo[rinfo[j + 1].index].rev_index = j + 1;
- s = 1;
- }
- if (!s)
- break;
- }
-
#ifdef CONFIG_MAC80211_DEBUGFS
de = &pinfo->dentries;
de->target = debugfs_create_u32("target_pf", S_IRUSR | S_IWUSR,
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 5e75bbf..6c4846a 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1072,10 +1072,6 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock,
unsigned char *asmptr;
int n, size, qbit = 0;
- /* ROSE empty frame has no meaning : don't send */
- if (len == 0)
- return 0;
-
if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT))
return -EINVAL;
@@ -1273,12 +1269,6 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock,
skb_reset_transport_header(skb);
copied = skb->len;
- /* ROSE empty frame has no meaning : ignore it */
- if (copied == 0) {
- skb_free_datagram(sk, skb);
- return copied;
- }
-
if (copied > size) {
copied = size;
msg->msg_flags |= MSG_TRUNC;
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index ec697ce..3b64182 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -303,6 +303,8 @@ restart:
switch (teql_resolve(skb, skb_res, slave)) {
case 0:
if (__netif_tx_trylock(slave_txq)) {
+ unsigned int length = qdisc_pkt_len(skb);
+
if (!netif_tx_queue_stopped(slave_txq) &&
!netif_tx_queue_frozen(slave_txq) &&
slave_ops->ndo_start_xmit(skb, slave) == 0) {
@@ -310,8 +312,7 @@ restart:
master->slaves = NEXT_SLAVE(q);
netif_wake_queue(dev);
master->stats.tx_packets++;
- master->stats.tx_bytes +=
- qdisc_pkt_len(skb);
+ master->stats.tx_bytes += length;
return 0;
}
__netif_tx_unlock(slave_txq);
diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c
index cb3b4ad..c229de3 100644
--- a/net/wimax/op-msg.c
+++ b/net/wimax/op-msg.c
@@ -149,7 +149,8 @@ struct sk_buff *wimax_msg_alloc(struct wimax_dev *wimax_dev,
}
result = nla_put(skb, WIMAX_GNL_MSG_DATA, size, msg);
if (result < 0) {
- dev_err(dev, "no memory to add payload in attribute\n");
+ dev_err(dev, "no memory to add payload (msg %p size %zu) in "
+ "attribute: %d\n", msg, size, result);
goto error_nla_put;
}
genlmsg_end(skb, genl_msg);
@@ -302,10 +303,10 @@ int wimax_msg(struct wimax_dev *wimax_dev, const char *pipe_name,
struct sk_buff *skb;
skb = wimax_msg_alloc(wimax_dev, pipe_name, buf, size, gfp_flags);
- if (skb == NULL)
- goto error_msg_new;
- result = wimax_msg_send(wimax_dev, skb);
-error_msg_new:
+ if (IS_ERR(skb))
+ result = PTR_ERR(skb);
+ else
+ result = wimax_msg_send(wimax_dev, skb);
return result;
}
EXPORT_SYMBOL_GPL(wimax_msg);
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 4f9ff2a..66cebb5 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1497,6 +1497,13 @@ int regulatory_init(void)
"using static definition\n");
#endif
+ /*
+ * This ensures last_request is populated once modules
+ * come swinging in and calling regulatory hints and
+ * wiphy_apply_custom_regulatory().
+ */
+ flush_scheduled_work();
+
return 0;
}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 8227172..5f1f865 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -794,7 +794,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
{
static xfrm_address_t saddr_wildcard = { };
struct net *net = xp_net(pol);
- unsigned int h;
+ unsigned int h, h_wildcard;
struct hlist_node *entry;
struct xfrm_state *x, *x0, *to_put;
int acquire_in_progress = 0;
@@ -819,8 +819,8 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
if (best)
goto found;
- h = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, family);
- hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) {
+ h_wildcard = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, family);
+ hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h_wildcard, bydst) {
if (x->props.family == family &&
x->props.reqid == tmpl->reqid &&
!(x->props.flags & XFRM_STATE_WILDRECV) &&
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 0e04f72..ab70cab 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -311,7 +311,8 @@ static int construct_alloc_key(struct key_type *type,
set_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags);
- down_write(&dest_keyring->sem);
+ if (dest_keyring)
+ down_write(&dest_keyring->sem);
/* attach the key to the destination keyring under lock, but we do need
* to do another check just in case someone beat us to it whilst we
@@ -322,10 +323,12 @@ static int construct_alloc_key(struct key_type *type,
if (!IS_ERR(key_ref))
goto key_already_present;
- __key_link(dest_keyring, key);
+ if (dest_keyring)
+ __key_link(dest_keyring, key);
mutex_unlock(&key_construction_mutex);
- up_write(&dest_keyring->sem);
+ if (dest_keyring)
+ up_write(&dest_keyring->sem);
mutex_unlock(&user->cons_lock);
*_key = key;
kleave(" = 0 [%d]", key_serial(key));
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 8d24c91..9d62f29 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4648,7 +4648,7 @@ static int selinux_ip_postroute_iptables_compat(struct sock *sk,
if (err)
return err;
- if (send_perm != 0)
+ if (!send_perm)
return 0;
err = sel_netport_sid(sk->sk_protocol,
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6c26afc..d76fe8f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -11710,6 +11710,7 @@ static struct snd_pci_quirk alc268_cfg_tbl[] = {
SND_PCI_QUIRK(0x1028, 0x0253, "Dell OEM", ALC268_DELL),
SND_PCI_QUIRK(0x1028, 0x02b0, "Dell Inspiron Mini9", ALC268_DELL),
SND_PCI_QUIRK(0x103c, 0x30cc, "TOSHIBA", ALC268_TOSHIBA),
+ SND_PCI_QUIRK(0x103c, 0x30f1, "HP TX25xx series", ALC268_TOSHIBA),
SND_PCI_QUIRK(0x1043, 0x1205, "ASUS W7J", ALC268_3ST),
SND_PCI_QUIRK(0x1179, 0xff10, "TOSHIBA A205", ALC268_TOSHIBA),
SND_PCI_QUIRK(0x1179, 0xff50, "TOSHIBA A305", ALC268_TOSHIBA),
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 19e3745..ee379cf 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -3375,7 +3375,7 @@ static int snd_usb_create_quirk(struct snd_usb_audio *chip,
[QUIRK_MIDI_YAMAHA] = snd_usb_create_midi_interface,
[QUIRK_MIDI_MIDIMAN] = snd_usb_create_midi_interface,
[QUIRK_MIDI_NOVATION] = snd_usb_create_midi_interface,
- [QUIRK_MIDI_RAW] = snd_usb_create_midi_interface,
+ [QUIRK_MIDI_FASTLANE] = snd_usb_create_midi_interface,
[QUIRK_MIDI_EMAGIC] = snd_usb_create_midi_interface,
[QUIRK_MIDI_CME] = snd_usb_create_midi_interface,
[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 36e4f7a..8e7f789 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -153,7 +153,7 @@ enum quirk_type {
QUIRK_MIDI_YAMAHA,
QUIRK_MIDI_MIDIMAN,
QUIRK_MIDI_NOVATION,
- QUIRK_MIDI_RAW,
+ QUIRK_MIDI_FASTLANE,
QUIRK_MIDI_EMAGIC,
QUIRK_MIDI_CME,
QUIRK_MIDI_US122L,
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c
index 26bad37..2fb35cc 100644
--- a/sound/usb/usbmidi.c
+++ b/sound/usb/usbmidi.c
@@ -1778,8 +1778,18 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip,
umidi->usb_protocol_ops = &snd_usbmidi_novation_ops;
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
break;
- case QUIRK_MIDI_RAW:
+ case QUIRK_MIDI_FASTLANE:
umidi->usb_protocol_ops = &snd_usbmidi_raw_ops;
+ /*
+ * Interface 1 contains isochronous endpoints, but with the same
+ * numbers as in interface 0. Since it is interface 1 that the
+ * USB core has most recently seen, these descriptors are now
+ * associated with the endpoint numbers. This will foul up our
+ * attempts to submit bulk/interrupt URBs to the endpoints in
+ * interface 0, so we have to make sure that the USB core looks
+ * again at interface 0 by calling usb_set_interface() on it.
+ */
+ usb_set_interface(umidi->chip->dev, 0, 0);
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
break;
case QUIRK_MIDI_EMAGIC:
diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h
index 5d8ef09..25162f6 100644
--- a/sound/usb/usbquirks.h
+++ b/sound/usb/usbquirks.h
@@ -1858,7 +1858,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.data = & (const struct snd_usb_audio_quirk[]) {
{
.ifnum = 0,
- .type = QUIRK_MIDI_RAW
+ .type = QUIRK_MIDI_FASTLANE
},
{
.ifnum = 1,
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d85642e..9138d0d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2315,6 +2315,7 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
r = -ENOMEM;
goto out_free_0;
}
+ cpumask_clear(cpus_hardware_enabled);
r = kvm_arch_hardware_setup();
if (r < 0)
--
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