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Message-ID: <1358344741.15692.106.camel@deadeye.wl.decadent.org.uk>
Date: Wed, 16 Jan 2013 13:59:01 +0000
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, Jiri Slaby <jslaby@...e.cz>,
stable@...r.kernel.org
Cc: lwn@....net
Subject: Re: Linux 3.2.37
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index a4399f5..3b979c6 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -524,6 +524,11 @@ tcp_thin_dupack - BOOLEAN
Documentation/networking/tcp-thin.txt
Default: 0
+tcp_challenge_ack_limit - INTEGER
+ Limits number of Challenge ACK sent per second, as recommended
+ in RFC 5961 (Improving TCP's Robustness to Blind In-Window Attacks)
+ Default: 100
+
UDP variables:
udp_mem - vector of 3 INTEGERs: min, pressure, max
diff --git a/Makefile b/Makefile
index 2052c29..21c77e2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 2
-SUBLEVEL = 36
+SUBLEVEL = 37
EXTRAVERSION =
NAME = Saber-toothed Squirrel
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index ec8affe..e74f86e 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -859,13 +859,8 @@ void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
void update_vsyscall_tz(void)
{
- /* Make userspace gettimeofday spin until we're done. */
- ++vdso_data->tb_update_count;
- smp_mb();
vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
vdso_data->tz_dsttime = sys_tz.tz_dsttime;
- smp_mb();
- ++vdso_data->tb_update_count;
}
static void __init clocksource_init(void)
diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c
index e8dd5c5..d10c123 100644
--- a/arch/powerpc/platforms/40x/ppc40x_simple.c
+++ b/arch/powerpc/platforms/40x/ppc40x_simple.c
@@ -55,7 +55,8 @@ static const char *board[] __initdata = {
"amcc,haleakala",
"amcc,kilauea",
"amcc,makalu",
- "est,hotfoot"
+ "est,hotfoot",
+ NULL
};
static int __init ppc40x_probe(void)
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 1770610..f368cef 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -58,14 +58,20 @@ static inline pte_t huge_pte_wrprotect(pte_t pte)
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
- ptep_set_wrprotect(mm, addr, ptep);
+ pte_t old_pte = *ptep;
+ set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
}
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t pte, int dirty)
{
- return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+ int changed = !pte_same(*ptep, pte);
+ if (changed) {
+ set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+ flush_tlb_page(vma, addr);
+ }
+ return changed;
}
static inline pte_t huge_ptep_get(pte_t *ptep)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8ab80ba..792b66f 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -789,8 +789,8 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
{
struct acpi_device_id button_device_ids[] = {
- {"PNP0C0D", 0},
{"PNP0C0C", 0},
+ {"PNP0C0D", 0},
{"PNP0C0E", 0},
{"", 0},
};
@@ -802,6 +802,11 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
/* Power button, Lid switch always enable wakeup */
if (!acpi_match_device_ids(device, button_device_ids)) {
device->wakeup.flags.run_wake = 1;
+ if (!acpi_match_device_ids(device, &button_device_ids[1])) {
+ /* Do not use Lid/sleep button for S5 wakeup */
+ if (device->wakeup.sleep_state == ACPI_STATE_S5)
+ device->wakeup.sleep_state = ACPI_STATE_S4;
+ }
device_set_wakeup_capable(&device->dev, true);
return;
}
@@ -1152,7 +1157,7 @@ static void acpi_device_set_id(struct acpi_device *device)
acpi_add_id(device, ACPI_DOCK_HID);
else if (!acpi_ibm_smbus_match(device))
acpi_add_id(device, ACPI_SMBUS_IBM_HID);
- else if (!acpi_device_hid(device) &&
+ else if (list_empty(&device->pnp.ids) &&
ACPI_IS_ROOT_DEVICE(device->parent)) {
acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index db195ab..e49ddd0 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -1,5 +1,5 @@
/* Copyright (c) 2007 Coraid, Inc. See COPYING for GPL terms. */
-#define VERSION "47"
+#define VERSION "47q"
#define AOE_MAJOR 152
#define DEVICE_NAME "aoe"
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 321de7b..7eca463 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -276,8 +276,6 @@ aoeblk_gdalloc(void *vp)
goto err_mempool;
blk_queue_make_request(d->blkq, aoeblk_make_request);
d->blkq->backing_dev_info.name = "aoe";
- if (bdi_init(&d->blkq->backing_dev_info))
- goto err_blkq;
spin_lock_irqsave(&d->lock, flags);
gd->major = AOE_MAJOR;
gd->first_minor = d->sysminor * AOE_PARTITIONS;
@@ -298,9 +296,6 @@ aoeblk_gdalloc(void *vp)
aoedisk_add_sysfs(d);
return;
-err_blkq:
- blk_cleanup_queue(d->blkq);
- d->blkq = NULL;
err_mempool:
mempool_destroy(d->bufpool);
err_disk:
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 791df46..012a9d2 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1305,6 +1305,7 @@ static inline void intel_unregister_dsm_handler(void) { return; }
#endif /* CONFIG_ACPI */
/* modesetting */
+extern void i915_redisable_vga(struct drm_device *dev);
extern void intel_modeset_init(struct drm_device *dev);
extern void intel_modeset_gem_init(struct drm_device *dev);
extern void intel_modeset_cleanup(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 54acad3..fa9639b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8898,6 +8898,23 @@ static void i915_disable_vga(struct drm_device *dev)
POSTING_READ(vga_reg);
}
+void i915_redisable_vga(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 vga_reg;
+
+ if (HAS_PCH_SPLIT(dev))
+ vga_reg = CPU_VGACNTRL;
+ else
+ vga_reg = VGACNTRL;
+
+ if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
+ DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
+ I915_WRITE(vga_reg, VGA_DISP_DISABLE);
+ POSTING_READ(vga_reg);
+ }
+}
+
void intel_modeset_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index cf5ea3d..c6d0966 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -535,6 +535,7 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
mutex_lock(&dev->mode_config.mutex);
drm_helper_resume_force_mode(dev);
+ i915_redisable_vga(dev);
mutex_unlock(&dev->mode_config.mutex);
return NOTIFY_OK;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index d5af089..2bb29c9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -940,7 +940,7 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
mem->bus.offset = mem->start << PAGE_SHIFT;
mem->bus.base = dev_priv->gart_info.aper_base;
- mem->bus.is_iomem = true;
+ mem->bus.is_iomem = !dev->agp->cant_use_aperture;
}
#endif
break;
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 81fc100..1b98338 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1536,6 +1536,9 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
of_machine_is_compatible("PowerBook6,7")) {
/* ibook */
rdev->mode_info.connector_table = CT_IBOOK;
+ } else if (of_machine_is_compatible("PowerMac3,5")) {
+ /* PowerMac G4 Silver radeon 7500 */
+ rdev->mode_info.connector_table = CT_MAC_G4_SILVER;
} else if (of_machine_is_compatible("PowerMac4,4")) {
/* emac */
rdev->mode_info.connector_table = CT_EMAC;
@@ -1561,6 +1564,11 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
(rdev->pdev->subsystem_device == 0x4150)) {
/* Mac G5 tower 9600 */
rdev->mode_info.connector_table = CT_MAC_G5_9600;
+ } else if ((rdev->pdev->device == 0x4c66) &&
+ (rdev->pdev->subsystem_vendor == 0x1002) &&
+ (rdev->pdev->subsystem_device == 0x4c66)) {
+ /* SAM440ep RV250 embedded board */
+ rdev->mode_info.connector_table = CT_SAM440EP;
} else
#endif /* CONFIG_PPC_PMAC */
#ifdef CONFIG_PPC64
@@ -2134,6 +2142,115 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
CONNECTOR_OBJECT_ID_SVIDEO,
&hpd);
break;
+ case CT_SAM440EP:
+ DRM_INFO("Connector Table: %d (SAM440ep embedded board)\n",
+ rdev->mode_info.connector_table);
+ /* LVDS */
+ ddc_i2c = combios_setup_i2c_bus(rdev, DDC_NONE_DETECTED, 0, 0);
+ hpd.hpd = RADEON_HPD_NONE;
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_LCD1_SUPPORT,
+ 0),
+ ATOM_DEVICE_LCD1_SUPPORT);
+ radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_LCD1_SUPPORT,
+ DRM_MODE_CONNECTOR_LVDS, &ddc_i2c,
+ CONNECTOR_OBJECT_ID_LVDS,
+ &hpd);
+ /* DVI-I - secondary dac, int tmds */
+ ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
+ hpd.hpd = RADEON_HPD_1; /* ??? */
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_DFP1_SUPPORT,
+ 0),
+ ATOM_DEVICE_DFP1_SUPPORT);
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_CRT2_SUPPORT,
+ 2),
+ ATOM_DEVICE_CRT2_SUPPORT);
+ radeon_add_legacy_connector(dev, 1,
+ ATOM_DEVICE_DFP1_SUPPORT |
+ ATOM_DEVICE_CRT2_SUPPORT,
+ DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
+ CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
+ &hpd);
+ /* VGA - primary dac */
+ ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
+ hpd.hpd = RADEON_HPD_NONE;
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_CRT1_SUPPORT,
+ 1),
+ ATOM_DEVICE_CRT1_SUPPORT);
+ radeon_add_legacy_connector(dev, 2,
+ ATOM_DEVICE_CRT1_SUPPORT,
+ DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
+ CONNECTOR_OBJECT_ID_VGA,
+ &hpd);
+ /* TV - TV DAC */
+ ddc_i2c.valid = false;
+ hpd.hpd = RADEON_HPD_NONE;
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_TV1_SUPPORT,
+ 2),
+ ATOM_DEVICE_TV1_SUPPORT);
+ radeon_add_legacy_connector(dev, 3, ATOM_DEVICE_TV1_SUPPORT,
+ DRM_MODE_CONNECTOR_SVIDEO,
+ &ddc_i2c,
+ CONNECTOR_OBJECT_ID_SVIDEO,
+ &hpd);
+ break;
+ case CT_MAC_G4_SILVER:
+ DRM_INFO("Connector Table: %d (mac g4 silver)\n",
+ rdev->mode_info.connector_table);
+ /* DVI-I - tv dac, int tmds */
+ ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
+ hpd.hpd = RADEON_HPD_1; /* ??? */
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_DFP1_SUPPORT,
+ 0),
+ ATOM_DEVICE_DFP1_SUPPORT);
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_CRT2_SUPPORT,
+ 2),
+ ATOM_DEVICE_CRT2_SUPPORT);
+ radeon_add_legacy_connector(dev, 0,
+ ATOM_DEVICE_DFP1_SUPPORT |
+ ATOM_DEVICE_CRT2_SUPPORT,
+ DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
+ CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
+ &hpd);
+ /* VGA - primary dac */
+ ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
+ hpd.hpd = RADEON_HPD_NONE;
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_CRT1_SUPPORT,
+ 1),
+ ATOM_DEVICE_CRT1_SUPPORT);
+ radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT1_SUPPORT,
+ DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
+ CONNECTOR_OBJECT_ID_VGA,
+ &hpd);
+ /* TV - TV DAC */
+ ddc_i2c.valid = false;
+ hpd.hpd = RADEON_HPD_NONE;
+ radeon_add_legacy_encoder(dev,
+ radeon_get_encoder_enum(dev,
+ ATOM_DEVICE_TV1_SUPPORT,
+ 2),
+ ATOM_DEVICE_TV1_SUPPORT);
+ radeon_add_legacy_connector(dev, 2, ATOM_DEVICE_TV1_SUPPORT,
+ DRM_MODE_CONNECTOR_SVIDEO,
+ &ddc_i2c,
+ CONNECTOR_OBJECT_ID_SVIDEO,
+ &hpd);
+ break;
default:
DRM_INFO("Connector table: %d (invalid)\n",
rdev->mode_info.connector_table);
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 87d494d..6fd53b6 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -689,7 +689,7 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
ret = connector_status_disconnected;
if (radeon_connector->ddc_bus)
- dret = radeon_ddc_probe(radeon_connector);
+ dret = radeon_ddc_probe(radeon_connector, false);
if (dret) {
radeon_connector->detected_by_load = false;
if (radeon_connector->edid) {
@@ -871,7 +871,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
bool dret = false;
if (radeon_connector->ddc_bus)
- dret = radeon_ddc_probe(radeon_connector);
+ dret = radeon_ddc_probe(radeon_connector, false);
if (dret) {
radeon_connector->detected_by_load = false;
if (radeon_connector->edid) {
@@ -1299,7 +1299,8 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
if (encoder) {
/* setup ddc on the bridge */
radeon_atom_ext_encoder_setup_ddc(encoder);
- if (radeon_ddc_probe(radeon_connector)) /* try DDC */
+ /* bridge chips are always aux */
+ if (radeon_ddc_probe(radeon_connector, true)) /* try DDC */
ret = connector_status_connected;
else if (radeon_connector->dac_load_detect) { /* try load detection */
struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
@@ -1317,7 +1318,8 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
if (radeon_dp_getdpcd(radeon_connector))
ret = connector_status_connected;
} else {
- if (radeon_ddc_probe(radeon_connector))
+ /* try non-aux ddc (DP to DVI/HMDI/etc. adapter) */
+ if (radeon_ddc_probe(radeon_connector, false))
ret = connector_status_connected;
}
}
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index a22d6e6..aec8e0c 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -701,10 +701,15 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
if (radeon_connector->router.ddc_valid)
radeon_router_select_ddc_port(radeon_connector);
- if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
- (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) ||
- (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) !=
- ENCODER_OBJECT_ID_NONE)) {
+ if (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) !=
+ ENCODER_OBJECT_ID_NONE) {
+ struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+
+ if (dig->dp_i2c_bus)
+ radeon_connector->edid = drm_get_edid(&radeon_connector->base,
+ &dig->dp_i2c_bus->adapter);
+ } else if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
+ (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index 1441b00..cf20351 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -34,7 +34,7 @@
* radeon_ddc_probe
*
*/
-bool radeon_ddc_probe(struct radeon_connector *radeon_connector)
+bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux)
{
u8 out = 0x0;
u8 buf[8];
@@ -58,7 +58,13 @@ bool radeon_ddc_probe(struct radeon_connector *radeon_connector)
if (radeon_connector->router.ddc_valid)
radeon_router_select_ddc_port(radeon_connector);
- ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2);
+ if (use_aux) {
+ struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+ ret = i2c_transfer(&dig->dp_i2c_bus->adapter, msgs, 2);
+ } else {
+ ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2);
+ }
+
if (ret != 2)
/* Couldn't find an accessible DDC on this connector */
return false;
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 8254d5a..bb42df4 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -210,6 +210,8 @@ enum radeon_connector_table {
CT_RN50_POWER,
CT_MAC_X800,
CT_MAC_G5_9600,
+ CT_SAM440EP,
+ CT_MAC_G4_SILVER
};
enum radeon_dvo_chip {
@@ -521,7 +523,7 @@ extern void radeon_i2c_put_byte(struct radeon_i2c_chan *i2c,
u8 val);
extern void radeon_router_select_ddc_port(struct radeon_connector *radeon_connector);
extern void radeon_router_select_cd_port(struct radeon_connector *radeon_connector);
-extern bool radeon_ddc_probe(struct radeon_connector *radeon_connector);
+extern bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux);
extern int radeon_ddc_get_modes(struct radeon_connector *radeon_connector);
extern struct drm_encoder *radeon_best_encoder(struct drm_connector *connector);
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c
index 9e64d96..376d9d9 100644
--- a/drivers/hwmon/lm73.c
+++ b/drivers/hwmon/lm73.c
@@ -49,6 +49,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
struct i2c_client *client = to_i2c_client(dev);
long temp;
short value;
+ s32 err;
int status = strict_strtol(buf, 10, &temp);
if (status < 0)
@@ -57,8 +58,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
/* Write value */
value = (short) SENSORS_LIMIT(temp/250, (LM73_TEMP_MIN*4),
(LM73_TEMP_MAX*4)) << 5;
- i2c_smbus_write_word_swapped(client, attr->index, value);
- return count;
+ err = i2c_smbus_write_word_swapped(client, attr->index, value);
+ return (err < 0) ? err : count;
}
static ssize_t show_temp(struct device *dev, struct device_attribute *da,
@@ -66,11 +67,16 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *da,
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct i2c_client *client = to_i2c_client(dev);
+ int temp;
+
+ s32 err = i2c_smbus_read_word_swapped(client, attr->index);
+ if (err < 0)
+ return err;
+
/* use integer division instead of equivalent right shift to
guarantee arithmetic shift and preserve the sign */
- int temp = ((s16) (i2c_smbus_read_word_swapped(client,
- attr->index))*250) / 32;
- return sprintf(buf, "%d\n", temp);
+ temp = (((s16) err) * 250) / 32;
+ return scnprintf(buf, PAGE_SIZE, "%d\n", temp);
}
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index 568b4f1..3ade373 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -524,6 +524,7 @@ void nes_iwarp_ce_handler(struct nes_device *, struct nes_hw_cq *);
int nes_destroy_cqp(struct nes_device *);
int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
void nes_recheck_link_status(struct work_struct *work);
+void nes_terminate_timeout(unsigned long context);
/* nes_nic.c */
struct net_device *nes_netdev_init(struct nes_device *, void __iomem *);
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 7c0ff19..4cd1bf7 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -75,7 +75,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
static void process_critical_error(struct nes_device *nesdev);
static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number);
static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode);
-static void nes_terminate_timeout(unsigned long context);
static void nes_terminate_start_timer(struct nes_qp *nesqp);
#ifdef CONFIG_INFINIBAND_NES_DEBUG
@@ -3522,7 +3521,7 @@ static void nes_terminate_received(struct nes_device *nesdev,
}
/* Timeout routine in case terminate fails to complete */
-static void nes_terminate_timeout(unsigned long context)
+void nes_terminate_timeout(unsigned long context)
{
struct nes_qp *nesqp = (struct nes_qp *)(unsigned long)context;
@@ -3532,11 +3531,7 @@ static void nes_terminate_timeout(unsigned long context)
/* Set a timer in case hw cannot complete the terminate sequence */
static void nes_terminate_start_timer(struct nes_qp *nesqp)
{
- init_timer(&nesqp->terminate_timer);
- nesqp->terminate_timer.function = nes_terminate_timeout;
- nesqp->terminate_timer.expires = jiffies + HZ;
- nesqp->terminate_timer.data = (unsigned long)nesqp;
- add_timer(&nesqp->terminate_timer);
+ mod_timer(&nesqp->terminate_timer, (jiffies + HZ));
}
/**
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 5095bc4..b0471b4 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -1404,6 +1404,9 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
}
nesqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR);
+ init_timer(&nesqp->terminate_timer);
+ nesqp->terminate_timer.function = nes_terminate_timeout;
+ nesqp->terminate_timer.data = (unsigned long)nesqp;
/* update the QP table */
nesdev->nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = nesqp;
@@ -1413,7 +1416,6 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
return &nesqp->ibqp;
}
-
/**
* nes_clean_cq
*/
@@ -2559,6 +2561,11 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return ibmr;
case IWNES_MEMREG_TYPE_QP:
case IWNES_MEMREG_TYPE_CQ:
+ if (!region->length) {
+ nes_debug(NES_DBG_MR, "Unable to register zero length region for CQ\n");
+ ib_umem_release(region);
+ return ERR_PTR(-EINVAL);
+ }
nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL);
if (!nespbl) {
nes_debug(NES_DBG_MR, "Unable to allocate PBL\n");
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index e9d73e7..979d225 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -701,8 +701,8 @@ static void ar9003_rx_gain_table_mode0(struct ath_hw *ah)
2);
else if (AR_SREV_9485_11(ah))
INIT_INI_ARRAY(&ah->iniModesRxGain,
- ar9485Common_wo_xlna_rx_gain_1_1,
- ARRAY_SIZE(ar9485Common_wo_xlna_rx_gain_1_1),
+ ar9485_common_rx_gain_1_1,
+ ARRAY_SIZE(ar9485_common_rx_gain_1_1),
2);
else if (AR_SREV_9580(ah))
INIT_INI_ARRAY(&ah->iniModesRxGain,
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c
index 8a009bc..7ca84c3 100644
--- a/drivers/net/wireless/p54/p54usb.c
+++ b/drivers/net/wireless/p54/p54usb.c
@@ -47,6 +47,7 @@ static struct usb_device_id p54u_table[] = {
{USB_DEVICE(0x0411, 0x0050)}, /* Buffalo WLI2-USB2-G54 */
{USB_DEVICE(0x045e, 0x00c2)}, /* Microsoft MN-710 */
{USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */
+ {USB_DEVICE(0x0675, 0x0530)}, /* DrayTek Vigor 530 */
{USB_DEVICE(0x06b9, 0x0120)}, /* Thomson SpeedTouch 120g */
{USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */
{USB_DEVICE(0x07aa, 0x001c)}, /* Corega CG-WLUSB2GT */
@@ -82,6 +83,8 @@ static struct usb_device_id p54u_table[] = {
{USB_DEVICE(0x06a9, 0x000e)}, /* Westell 802.11g USB (A90-211WG-01) */
{USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */
{USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */
+ {USB_DEVICE(0x0803, 0x4310)}, /* Zoom 4410a */
+ {USB_DEVICE(0x083a, 0x4503)}, /* T-Com Sinus 154 data II */
{USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */
{USB_DEVICE(0x083a, 0xc501)}, /* Zoom Wireless-G 4410 */
{USB_DEVICE(0x083a, 0xf503)}, /* Accton FD7050E ver 1010ec */
@@ -101,6 +104,7 @@ static struct usb_device_id p54u_table[] = {
{USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */
{USB_DEVICE(0x1413, 0x5400)}, /* Telsey 802.11g USB2.0 Adapter */
{USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */
+ /* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */
{USB_DEVICE(0x1668, 0x1050)}, /* Actiontec 802UIG-1 */
{USB_DEVICE(0x1740, 0x1000)}, /* Senao NUB-350 */
{USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index fb19447..67cbe5a 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4208,7 +4208,8 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_SUPPORTS_PS |
IEEE80211_HW_PS_NULLFUNC_STACK |
- IEEE80211_HW_AMPDU_AGGREGATION;
+ IEEE80211_HW_AMPDU_AGGREGATION |
+ IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL;
/*
* Don't set IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING for USB devices
* unless we are capable of sending the buffered frames out after the
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 78fda9c..cab24f7 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2747,7 +2747,7 @@ static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
if (PCI_FUNC(dev->devfn))
return;
/*
- * RICOH 0xe823 SD/MMC card reader fails to recognize
+ * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize
* certain types of SD/MMC cards. Lowering the SD base
* clock frequency from 200Mhz to 50Mhz fixes this issue.
*
@@ -2758,7 +2758,8 @@ static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
* 0xf9 - Key register for 0x150
* 0xfc - key register for 0xe1
*/
- if (dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
+ if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 ||
+ dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
pci_write_config_byte(dev, 0xf9, 0xfc);
pci_write_config_byte(dev, 0x150, 0x10);
pci_write_config_byte(dev, 0xf9, 0x00);
@@ -2785,6 +2786,8 @@ static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
+DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
#endif /*CONFIG_MMC_RICOH_MMC*/
diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index f93f412..f818dae 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -69,7 +69,7 @@
| ALARM_SEC_BIT)
#define VT8500_RTC_CR_ENABLE (1 << 0) /* Enable RTC */
-#define VT8500_RTC_CR_24H (1 << 1) /* 24h time format */
+#define VT8500_RTC_CR_12H (1 << 1) /* 12h time format */
#define VT8500_RTC_CR_SM_ENABLE (1 << 2) /* Enable periodic irqs */
#define VT8500_RTC_CR_SM_SEC (1 << 3) /* 0: 1Hz/60, 1: 1Hz */
#define VT8500_RTC_CR_CALIB (1 << 4) /* Enable calibration */
@@ -118,7 +118,7 @@ static int vt8500_rtc_read_time(struct device *dev, struct rtc_time *tm)
tm->tm_min = bcd2bin((time & TIME_MIN_MASK) >> TIME_MIN_S);
tm->tm_hour = bcd2bin((time & TIME_HOUR_MASK) >> TIME_HOUR_S);
tm->tm_mday = bcd2bin(date & DATE_DAY_MASK);
- tm->tm_mon = bcd2bin((date & DATE_MONTH_MASK) >> DATE_MONTH_S);
+ tm->tm_mon = bcd2bin((date & DATE_MONTH_MASK) >> DATE_MONTH_S) - 1;
tm->tm_year = bcd2bin((date & DATE_YEAR_MASK) >> DATE_YEAR_S)
+ ((date >> DATE_CENTURY_S) & 1 ? 200 : 100);
tm->tm_wday = (time & TIME_DOW_MASK) >> TIME_DOW_S;
@@ -137,8 +137,9 @@ static int vt8500_rtc_set_time(struct device *dev, struct rtc_time *tm)
}
writel((bin2bcd(tm->tm_year - 100) << DATE_YEAR_S)
- | (bin2bcd(tm->tm_mon) << DATE_MONTH_S)
- | (bin2bcd(tm->tm_mday)),
+ | (bin2bcd(tm->tm_mon + 1) << DATE_MONTH_S)
+ | (bin2bcd(tm->tm_mday))
+ | ((tm->tm_year >= 200) << DATE_CENTURY_S),
vt8500_rtc->regbase + VT8500_RTC_DS);
writel((bin2bcd(tm->tm_wday) << TIME_DOW_S)
| (bin2bcd(tm->tm_hour) << TIME_HOUR_S)
@@ -248,7 +249,7 @@ static int __devinit vt8500_rtc_probe(struct platform_device *pdev)
}
/* Enable RTC and set it to 24-hour mode */
- writel(VT8500_RTC_CR_ENABLE | VT8500_RTC_CR_24H,
+ writel(VT8500_RTC_CR_ENABLE,
vt8500_rtc->regbase + VT8500_RTC_CR);
vt8500_rtc->rtc = rtc_device_register("vt8500-rtc", &pdev->dev,
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index a4884a5..c6ad694 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1635,7 +1635,7 @@ int mvs_abort_task(struct sas_task *task)
mv_dprintk("mvs_abort_task() mvi=%p task=%p "
"slot=%p slot_idx=x%x\n",
mvi, task, slot, slot_idx);
- mvs_tmf_timedout((unsigned long)task);
+ task->task_state_flags |= SAS_TASK_STATE_ABORTED;
mvs_slot_task_free(mvi, task, slot, slot_idx);
rc = TMF_RESP_FUNC_COMPLETE;
goto out;
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index d837d63..03cb95a 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -366,7 +366,8 @@ static void mxsfb_disable_controller(struct fb_info *fb_info)
loop--;
}
- writel(VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4 + REG_CLR);
+ reg = readl(host->base + LCDC_VDCTRL4);
+ writel(reg & ~VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4);
clk_disable(host->clk);
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 99a27cf..4e5dfb7 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -485,6 +485,13 @@ send_nt_cancel(struct TCP_Server_Info *server, struct smb_hdr *in_buf,
mutex_unlock(&server->srv_mutex);
return rc;
}
+
+ /*
+ * The response to this call was already factored into the sequence
+ * number when the call went out, so we must adjust it back downward
+ * after signing here.
+ */
+ --server->sequence_number;
rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
mutex_unlock(&server->srv_mutex);
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index a6f3763..451b9b8 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1197,10 +1197,30 @@ static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_even
* otherwise we might miss an event that happens between the
* f_op->poll() call and the new event set registering.
*/
- epi->event.events = event->events;
+ epi->event.events = event->events; /* need barrier below */
epi->event.data = event->data; /* protected by mtx */
/*
+ * The following barrier has two effects:
+ *
+ * 1) Flush epi changes above to other CPUs. This ensures
+ * we do not miss events from ep_poll_callback if an
+ * event occurs immediately after we call f_op->poll().
+ * We need this because we did not take ep->lock while
+ * changing epi above (but ep_poll_callback does take
+ * ep->lock).
+ *
+ * 2) We also need to ensure we do not miss _past_ events
+ * when calling f_op->poll(). This barrier also
+ * pairs with the barrier in wq_has_sleeper (see
+ * comments for wq_has_sleeper).
+ *
+ * This barrier will now guarantee ep_poll_callback or f_op->poll
+ * (or both) will notice the readiness of an item.
+ */
+ smp_mb();
+
+ /*
* Get current event bits. We can safely use the file* here because
* its usage count has been increased by the caller of this function.
*/
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 191580a..fbb92e6 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2093,13 +2093,14 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
* removes index from the index block.
*/
static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
- struct ext4_ext_path *path)
+ struct ext4_ext_path *path, int depth)
{
int err;
ext4_fsblk_t leaf;
/* free index block */
- path--;
+ depth--;
+ path = path + depth;
leaf = ext4_idx_pblock(path->p_idx);
if (unlikely(path->p_hdr->eh_entries == 0)) {
EXT4_ERROR_INODE(inode, "path->p_hdr->eh_entries == 0");
@@ -2124,6 +2125,19 @@ static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
ext4_free_blocks(handle, inode, NULL, leaf, 1,
EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET);
+
+ while (--depth >= 0) {
+ if (path->p_idx != EXT_FIRST_INDEX(path->p_hdr))
+ break;
+ path--;
+ err = ext4_ext_get_access(handle, inode, path);
+ if (err)
+ break;
+ path->p_idx->ei_block = (path+1)->p_idx->ei_block;
+ err = ext4_ext_dirty(handle, inode, path);
+ if (err)
+ break;
+ }
return err;
}
@@ -2454,7 +2468,7 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
/* if this leaf is free, then we should
* remove it from index block above */
if (err == 0 && eh->eh_entries == 0 && path[depth].p_bh != NULL)
- err = ext4_ext_rm_idx(handle, inode, path + depth);
+ err = ext4_ext_rm_idx(handle, inode, path, depth);
out:
return err;
@@ -2587,7 +2601,7 @@ again:
/* index is empty, remove it;
* handle must be already prepared by the
* truncatei_leaf() */
- err = ext4_ext_rm_idx(handle, inode, path + i);
+ err = ext4_ext_rm_idx(handle, inode, path, i);
}
/* root level has p_bh == NULL, brelse() eats this */
brelse(path[i].p_bh);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f8d5fce..24ac7a2 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1942,6 +1942,16 @@ set_qf_format:
}
}
#endif
+ if (test_opt(sb, DIOREAD_NOLOCK)) {
+ int blocksize =
+ BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
+
+ if (blocksize < PAGE_CACHE_SIZE) {
+ ext4_msg(sb, KERN_ERR, "can't mount with "
+ "dioread_nolock if block size != PAGE_SIZE");
+ return 0;
+ }
+ }
return 1;
}
@@ -3367,15 +3377,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
clear_opt(sb, DELALLOC);
}
- blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
- if (test_opt(sb, DIOREAD_NOLOCK)) {
- if (blocksize < PAGE_SIZE) {
- ext4_msg(sb, KERN_ERR, "can't mount with "
- "dioread_nolock if block size != PAGE_SIZE");
- goto failed_mount;
- }
- }
-
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
@@ -3417,6 +3418,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (!ext4_feature_set_ok(sb, (sb->s_flags & MS_RDONLY)))
goto failed_mount;
+ blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
if (blocksize < EXT4_MIN_BLOCK_SIZE ||
blocksize > EXT4_MAX_BLOCK_SIZE) {
ext4_msg(sb, KERN_ERR,
@@ -4652,7 +4654,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
}
ext4_setup_system_zone(sb);
- if (sbi->s_journal == NULL)
+ if (sbi->s_journal == NULL && !(old_sb_flags & MS_RDONLY))
ext4_commit_super(sb, 1);
#ifdef CONFIG_QUOTA
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 8267de5..d7dd774 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -179,7 +179,8 @@ repeat:
if (!new_transaction)
goto alloc_transaction;
write_lock(&journal->j_state_lock);
- if (!journal->j_running_transaction) {
+ if (!journal->j_running_transaction &&
+ !journal->j_barrier_count) {
jbd2_get_transaction(journal, new_transaction);
new_transaction = NULL;
}
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 8150344..1943898 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1057,7 +1057,7 @@ static int nfs_get_option_str(substring_t args[], char **option)
{
kfree(*option);
*option = match_strdup(args);
- return !option;
+ return !*option;
}
static int nfs_get_option_ul(substring_t args[], unsigned long *option)
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 15df1a4..af37ce3 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -581,6 +581,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
struct udf_inode_info *iinfo = UDF_I(inode);
int goal = 0, pgoal = iinfo->i_location.logicalBlockNum;
int lastblock = 0;
+ bool isBeyondEOF;
prev_epos.offset = udf_file_entry_alloc_offset(inode);
prev_epos.block = iinfo->i_location;
@@ -659,7 +660,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
/* Are we beyond EOF? */
if (etype == -1) {
int ret;
-
+ isBeyondEOF = 1;
if (count) {
if (c)
laarr[0] = laarr[1];
@@ -702,6 +703,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
endnum = c + 1;
lastblock = 1;
} else {
+ isBeyondEOF = 0;
endnum = startnum = ((count > 2) ? 2 : count);
/* if the current extent is in position 0,
@@ -749,7 +751,8 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
*err = -ENOSPC;
return NULL;
}
- iinfo->i_lenExtents += inode->i_sb->s_blocksize;
+ if (isBeyondEOF)
+ iinfo->i_lenExtents += inode->i_sb->s_blocksize;
}
/* if the extent the requsted block is located in contains multiple
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index e58fa77..34e0274 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -78,6 +78,14 @@ struct mmu_gather_batch {
#define MAX_GATHER_BATCH \
((PAGE_SIZE - sizeof(struct mmu_gather_batch)) / sizeof(void *))
+/*
+ * Limit the maximum number of mmu_gather batches to reduce a risk of soft
+ * lockups for non-preemptible kernels on huge machines when a lot of memory
+ * is zapped during unmapping.
+ * 10K pages freed at once should be safe even without a preemption point.
+ */
+#define MAX_GATHER_BATCH_COUNT (10000UL/MAX_GATHER_BATCH)
+
/* struct mmu_gather is an opaque type used by the mm code for passing around
* any data needed by arch specific code for tlb_remove_page.
*/
@@ -94,6 +102,7 @@ struct mmu_gather {
struct mmu_gather_batch *active;
struct mmu_gather_batch local;
struct page *__pages[MMU_GATHER_BUNDLE];
+ unsigned int batch_count;
};
#define HAVE_GENERIC_MMU_GATHER
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 59e4028..3fd17c2 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -50,6 +50,11 @@
# define inline inline __attribute__((always_inline))
# define __inline__ __inline__ __attribute__((always_inline))
# define __inline __inline __attribute__((always_inline))
+#else
+/* A lot of inline functions can cause havoc with function tracing */
+# define inline inline notrace
+# define __inline__ __inline__ notrace
+# define __inline __inline notrace
#endif
#define __deprecated __attribute__((deprecated))
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index e90a673..8d9b903 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -360,7 +360,7 @@ static inline void ClearPageCompound(struct page *page)
* pages on the LRU and/or pagecache.
*/
TESTPAGEFLAG(Compound, compound)
-__PAGEFLAG(Head, compound)
+__SETPAGEFLAG(Head, compound) __CLEARPAGEFLAG(Head, compound)
/*
* PG_reclaim is used in combination with PG_compound to mark the
@@ -372,8 +372,14 @@ __PAGEFLAG(Head, compound)
* PG_compound & PG_reclaim => Tail page
* PG_compound & ~PG_reclaim => Head page
*/
+#define PG_head_mask ((1L << PG_compound))
#define PG_head_tail_mask ((1L << PG_compound) | (1L << PG_reclaim))
+static inline int PageHead(struct page *page)
+{
+ return ((page->flags & PG_head_tail_mask) == PG_head_mask);
+}
+
static inline int PageTail(struct page *page)
{
return ((page->flags & PG_head_tail_mask) == PG_head_tail_mask);
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 5776609..3db3da1 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1543,6 +1543,7 @@
#define PCI_DEVICE_ID_RICOH_RL5C476 0x0476
#define PCI_DEVICE_ID_RICOH_RL5C478 0x0478
#define PCI_DEVICE_ID_RICOH_R5C822 0x0822
+#define PCI_DEVICE_ID_RICOH_R5CE822 0xe822
#define PCI_DEVICE_ID_RICOH_R5CE823 0xe823
#define PCI_DEVICE_ID_RICOH_R5C832 0x0832
#define PCI_DEVICE_ID_RICOH_R5C843 0x0843
diff --git a/include/linux/snmp.h b/include/linux/snmp.h
index e16557a..64f5ca7 100644
--- a/include/linux/snmp.h
+++ b/include/linux/snmp.h
@@ -209,7 +209,6 @@ enum
LINUX_MIB_TCPDSACKOFOSENT, /* TCPDSACKOfoSent */
LINUX_MIB_TCPDSACKRECV, /* TCPDSACKRecv */
LINUX_MIB_TCPDSACKOFORECV, /* TCPDSACKOfoRecv */
- LINUX_MIB_TCPABORTONSYN, /* TCPAbortOnSyn */
LINUX_MIB_TCPABORTONDATA, /* TCPAbortOnData */
LINUX_MIB_TCPABORTONCLOSE, /* TCPAbortOnClose */
LINUX_MIB_TCPABORTONMEMORY, /* TCPAbortOnMemory */
@@ -233,6 +232,8 @@ enum
LINUX_MIB_TCPTIMEWAITOVERFLOW, /* TCPTimeWaitOverflow */
LINUX_MIB_TCPREQQFULLDOCOOKIES, /* TCPReqQFullDoCookies */
LINUX_MIB_TCPREQQFULLDROP, /* TCPReqQFullDrop */
+ LINUX_MIB_TCPCHALLENGEACK, /* TCPChallengeACK */
+ LINUX_MIB_TCPSYNCHALLENGE, /* TCPSYNChallenge */
__LINUX_MIB_MAX
};
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index e6db62e..ca2755f 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -317,6 +317,7 @@ extern void inet_csk_reqsk_queue_prune(struct sock *parent,
const unsigned long max_rto);
extern void inet_csk_destroy_sock(struct sock *sk);
+extern void inet_csk_prepare_forced_close(struct sock *sk);
/*
* LISTEN is a special case for poll..
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 72eddd1..1a6201a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1128,6 +1128,10 @@ enum sta_notify_cmd {
* @IEEE80211_HW_TX_AMPDU_SETUP_IN_HW: The device handles TX A-MPDU session
* setup strictly in HW. mac80211 should not attempt to do this in
* software.
+ *
+ * @IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL: On this hardware TX BA session
+ * should be tear down once BAR frame will not be acked.
+ *
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -1154,6 +1158,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21,
IEEE80211_HW_AP_LINK_PS = 1<<22,
IEEE80211_HW_TX_AMPDU_SETUP_IN_HW = 1<<23,
+ IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL = 1<<26,
};
/**
diff --git a/include/net/tcp.h b/include/net/tcp.h
index bb18c4d..0768715 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -251,6 +251,7 @@ extern int sysctl_tcp_max_ssthresh;
extern int sysctl_tcp_cookie_size;
extern int sysctl_tcp_thin_linear_timeouts;
extern int sysctl_tcp_thin_dupack;
+extern int sysctl_tcp_challenge_ack_limit;
extern atomic_long_t tcp_memory_allocated;
extern struct percpu_counter tcp_sockets_allocated;
diff --git a/mm/memory.c b/mm/memory.c
index 15e686a..4f2add1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -205,10 +205,14 @@ static int tlb_next_batch(struct mmu_gather *tlb)
return 1;
}
+ if (tlb->batch_count == MAX_GATHER_BATCH_COUNT)
+ return 0;
+
batch = (void *)__get_free_pages(GFP_NOWAIT | __GFP_NOWARN, 0);
if (!batch)
return 0;
+ tlb->batch_count++;
batch->next = NULL;
batch->nr = 0;
batch->max = MAX_GATHER_BATCH;
@@ -235,6 +239,7 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm)
tlb->local.nr = 0;
tlb->local.max = ARRAY_SIZE(tlb->__pages);
tlb->active = &tlb->local;
+ tlb->batch_count = 0;
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
tlb->batch = NULL;
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index c59d44b..4d1e637 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2334,8 +2334,7 @@ void numa_default_policy(void)
*/
/*
- * "local" is pseudo-policy: MPOL_PREFERRED with MPOL_F_LOCAL flag
- * Used only for mpol_parse_str() and mpol_to_str()
+ * "local" is implemented internally by MPOL_PREFERRED with MPOL_F_LOCAL flag.
*/
#define MPOL_LOCAL MPOL_MAX
static const char * const policy_modes[] =
@@ -2350,28 +2349,21 @@ static const char * const policy_modes[] =
#ifdef CONFIG_TMPFS
/**
- * mpol_parse_str - parse string to mempolicy
+ * mpol_parse_str - parse string to mempolicy, for tmpfs mpol mount option.
* @str: string containing mempolicy to parse
* @mpol: pointer to struct mempolicy pointer, returned on success.
- * @no_context: flag whether to "contextualize" the mempolicy
+ * @unused: redundant argument, to be removed later.
*
* Format of input:
* <mode>[=<flags>][:<nodelist>]
*
- * if @no_context is true, save the input nodemask in w.user_nodemask in
- * the returned mempolicy. This will be used to "clone" the mempolicy in
- * a specific context [cpuset] at a later time. Used to parse tmpfs mpol
- * mount option. Note that if 'static' or 'relative' mode flags were
- * specified, the input nodemask will already have been saved. Saving
- * it again is redundant, but safe.
- *
* On success, returns 0, else 1
*/
-int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
+int mpol_parse_str(char *str, struct mempolicy **mpol, int unused)
{
struct mempolicy *new = NULL;
unsigned short mode;
- unsigned short uninitialized_var(mode_flags);
+ unsigned short mode_flags;
nodemask_t nodes;
char *nodelist = strchr(str, ':');
char *flags = strchr(str, '=');
@@ -2459,24 +2451,23 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
if (IS_ERR(new))
goto out;
- if (no_context) {
- /* save for contextualization */
- new->w.user_nodemask = nodes;
- } else {
- int ret;
- NODEMASK_SCRATCH(scratch);
- if (scratch) {
- task_lock(current);
- ret = mpol_set_nodemask(new, &nodes, scratch);
- task_unlock(current);
- } else
- ret = -ENOMEM;
- NODEMASK_SCRATCH_FREE(scratch);
- if (ret) {
- mpol_put(new);
- goto out;
- }
- }
+ /*
+ * Save nodes for mpol_to_str() to show the tmpfs mount options
+ * for /proc/mounts, /proc/pid/mounts and /proc/pid/mountinfo.
+ */
+ if (mode != MPOL_PREFERRED)
+ new->v.nodes = nodes;
+ else if (nodelist)
+ new->v.preferred_node = first_node(nodes);
+ else
+ new->flags |= MPOL_F_LOCAL;
+
+ /*
+ * Save nodes for contextualization: this will be used to "clone"
+ * the mempolicy in a specific context [cpuset] at a later time.
+ */
+ new->w.user_nodemask = nodes;
+
err = 0;
out:
@@ -2496,13 +2487,13 @@ out:
* @buffer: to contain formatted mempolicy string
* @maxlen: length of @buffer
* @pol: pointer to mempolicy to be formatted
- * @no_context: "context free" mempolicy - use nodemask in w.user_nodemask
+ * @unused: redundant argument, to be removed later.
*
* Convert a mempolicy into a string.
* Returns the number of characters in buffer (if positive)
* or an error (negative)
*/
-int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol, int no_context)
+int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol, int unused)
{
char *p = buffer;
int l;
@@ -2528,7 +2519,7 @@ int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol, int no_context)
case MPOL_PREFERRED:
nodes_clear(nodes);
if (flags & MPOL_F_LOCAL)
- mode = MPOL_LOCAL; /* pseudo-policy */
+ mode = MPOL_LOCAL;
else
node_set(pol->v.preferred_node, nodes);
break;
@@ -2536,10 +2527,7 @@ int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol, int no_context)
case MPOL_BIND:
/* Fall through */
case MPOL_INTERLEAVE:
- if (no_context)
- nodes = pol->w.user_nodemask;
- else
- nodes = pol->v.nodes;
+ nodes = pol->v.nodes;
break;
default:
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 3f4e541..72416c8 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -434,8 +434,8 @@ exit:
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS);
return NULL;
put_and_exit:
- bh_unlock_sock(newsk);
- sock_put(newsk);
+ inet_csk_prepare_forced_close(newsk);
+ dccp_done(newsk);
goto exit;
}
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 17ee85c..592b78c 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -609,7 +609,8 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
newinet->inet_rcv_saddr = LOOPBACK4_IPV6;
if (__inet_inherit_port(sk, newsk) < 0) {
- sock_put(newsk);
+ inet_csk_prepare_forced_close(newsk);
+ dccp_done(newsk);
goto out;
}
__inet6_hash(newsk, NULL);
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index c14d88a..907ef2c 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -647,6 +647,22 @@ void inet_csk_destroy_sock(struct sock *sk)
}
EXPORT_SYMBOL(inet_csk_destroy_sock);
+/* This function allows to force a closure of a socket after the call to
+ * tcp/dccp_create_openreq_child().
+ */
+void inet_csk_prepare_forced_close(struct sock *sk)
+{
+ /* sk_clone_lock locked the socket and set refcnt to 2 */
+ bh_unlock_sock(sk);
+ sock_put(sk);
+
+ /* The below has to be done to allow calling inet_csk_destroy_sock */
+ sock_set_flag(sk, SOCK_DEAD);
+ percpu_counter_inc(sk->sk_prot->orphan_count);
+ inet_sk(sk)->inet_num = 0;
+}
+EXPORT_SYMBOL(inet_csk_prepare_forced_close);
+
int inet_csk_listen_start(struct sock *sk, const int nr_table_entries)
{
struct inet_sock *inet = inet_sk(sk);
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 466ea8b..f7fdbe9 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -233,7 +233,6 @@ static const struct snmp_mib snmp4_net_list[] = {
SNMP_MIB_ITEM("TCPDSACKOfoSent", LINUX_MIB_TCPDSACKOFOSENT),
SNMP_MIB_ITEM("TCPDSACKRecv", LINUX_MIB_TCPDSACKRECV),
SNMP_MIB_ITEM("TCPDSACKOfoRecv", LINUX_MIB_TCPDSACKOFORECV),
- SNMP_MIB_ITEM("TCPAbortOnSyn", LINUX_MIB_TCPABORTONSYN),
SNMP_MIB_ITEM("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA),
SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE),
SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY),
@@ -257,6 +256,8 @@ static const struct snmp_mib snmp4_net_list[] = {
SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW),
SNMP_MIB_ITEM("TCPReqQFullDoCookies", LINUX_MIB_TCPREQQFULLDOCOOKIES),
SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP),
+ SNMP_MIB_ITEM("TCPChallengeACK", LINUX_MIB_TCPCHALLENGEACK),
+ SNMP_MIB_ITEM("TCPSYNChallenge", LINUX_MIB_TCPSYNCHALLENGE),
SNMP_MIB_SENTINEL
};
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 69fd720..5485077 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -552,6 +552,13 @@ static struct ctl_table ipv4_table[] = {
.mode = 0644,
.proc_handler = proc_dointvec
},
+ {
+ .procname = "tcp_challenge_ack_limit",
+ .data = &sysctl_tcp_challenge_ack_limit,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
#ifdef CONFIG_NET_DMA
{
.procname = "tcp_dma_copybreak",
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index a08a621..aab8f08 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -86,6 +86,9 @@ int sysctl_tcp_app_win __read_mostly = 31;
int sysctl_tcp_adv_win_scale __read_mostly = 1;
EXPORT_SYMBOL(sysctl_tcp_adv_win_scale);
+/* rfc5961 challenge ack rate limiting */
+int sysctl_tcp_challenge_ack_limit = 100;
+
int sysctl_tcp_stdurg __read_mostly;
int sysctl_tcp_rfc1337 __read_mostly;
int sysctl_tcp_max_orphans __read_mostly = NR_FILE;
@@ -3700,6 +3703,24 @@ static int tcp_process_frto(struct sock *sk, int flag)
return 0;
}
+/* RFC 5961 7 [ACK Throttling] */
+static void tcp_send_challenge_ack(struct sock *sk)
+{
+ /* unprotected vars, we dont care of overwrites */
+ static u32 challenge_timestamp;
+ static unsigned int challenge_count;
+ u32 now = jiffies / HZ;
+
+ if (now != challenge_timestamp) {
+ challenge_timestamp = now;
+ challenge_count = 0;
+ }
+ if (++challenge_count <= sysctl_tcp_challenge_ack_limit) {
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPCHALLENGEACK);
+ tcp_send_ack(sk);
+ }
+}
+
/* This routine deals with incoming acks, but not outgoing ones. */
static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
{
@@ -3718,8 +3739,14 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
/* If the ack is older than previous acks
* then we can probably ignore it.
*/
- if (before(ack, prior_snd_una))
+ if (before(ack, prior_snd_una)) {
+ /* RFC 5961 5.2 [Blind Data Injection Attack].[Mitigation] */
+ if (before(ack, prior_snd_una - tp->max_window)) {
+ tcp_send_challenge_ack(sk);
+ return -1;
+ }
goto old_ack;
+ }
/* If the ack includes data we haven't sent yet, discard
* this segment (RFC793 Section 3.9).
@@ -5243,8 +5270,8 @@ out:
/* Does PAWS and seqno based validation of an incoming segment, flags will
* play significant role here.
*/
-static int tcp_validate_incoming(struct sock *sk, struct sk_buff *skb,
- const struct tcphdr *th, int syn_inerr)
+static bool tcp_validate_incoming(struct sock *sk, struct sk_buff *skb,
+ const struct tcphdr *th, int syn_inerr)
{
const u8 *hash_location;
struct tcp_sock *tp = tcp_sk(sk);
@@ -5269,38 +5296,48 @@ static int tcp_validate_incoming(struct sock *sk, struct sk_buff *skb,
* an acknowledgment should be sent in reply (unless the RST
* bit is set, if so drop the segment and return)".
*/
- if (!th->rst)
+ if (!th->rst) {
+ if (th->syn)
+ goto syn_challenge;
tcp_send_dupack(sk, skb);
+ }
goto discard;
}
/* Step 2: check RST bit */
if (th->rst) {
- tcp_reset(sk);
+ /* RFC 5961 3.2 :
+ * If sequence number exactly matches RCV.NXT, then
+ * RESET the connection
+ * else
+ * Send a challenge ACK
+ */
+ if (TCP_SKB_CB(skb)->seq == tp->rcv_nxt)
+ tcp_reset(sk);
+ else
+ tcp_send_challenge_ack(sk);
goto discard;
}
- /* ts_recent update must be made after we are sure that the packet
- * is in window.
- */
- tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
-
/* step 3: check security and precedence [ignored] */
- /* step 4: Check for a SYN in window. */
- if (th->syn && !before(TCP_SKB_CB(skb)->seq, tp->rcv_nxt)) {
+ /* step 4: Check for a SYN
+ * RFC 5691 4.2 : Send a challenge ack
+ */
+ if (th->syn) {
+syn_challenge:
if (syn_inerr)
TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_INERRS);
- NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONSYN);
- tcp_reset(sk);
- return -1;
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSYNCHALLENGE);
+ tcp_send_challenge_ack(sk);
+ goto discard;
}
- return 1;
+ return true;
discard:
__kfree_skb(skb);
- return 0;
+ return false;
}
/*
@@ -5330,7 +5367,6 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct tcphdr *th, unsigned int len)
{
struct tcp_sock *tp = tcp_sk(sk);
- int res;
/*
* Header prediction.
@@ -5510,14 +5546,18 @@ slow_path:
* Standard slow path.
*/
- res = tcp_validate_incoming(sk, skb, th, 1);
- if (res <= 0)
- return -res;
+ if (!tcp_validate_incoming(sk, skb, th, 1))
+ return 0;
step5:
if (th->ack && tcp_ack(sk, skb, FLAG_SLOWPATH) < 0)
goto discard;
+ /* ts_recent update must be made after we are sure that the packet
+ * is in window.
+ */
+ tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
+
tcp_rcv_rtt_measure_ts(sk, skb);
/* Process urgent data. */
@@ -5822,7 +5862,6 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
struct tcp_sock *tp = tcp_sk(sk);
struct inet_connection_sock *icsk = inet_csk(sk);
int queued = 0;
- int res;
tp->rx_opt.saw_tstamp = 0;
@@ -5877,9 +5916,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
return 0;
}
- res = tcp_validate_incoming(sk, skb, th, 0);
- if (res <= 0)
- return -res;
+ if (!tcp_validate_incoming(sk, skb, th, 0))
+ return 0;
/* step 5: check the ACK field */
if (th->ack) {
@@ -5990,6 +6028,11 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
} else
goto discard;
+ /* ts_recent update must be made after we are sure that the packet
+ * is in window.
+ */
+ tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
+
/* step 6: check the URG bit */
tcp_urg(sk, skb, th);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 58c09a0..a97c9ad 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1520,9 +1520,8 @@ exit:
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS);
return NULL;
put_and_exit:
- tcp_clear_xmit_timers(newsk);
- bh_unlock_sock(newsk);
- sock_put(newsk);
+ inet_csk_prepare_forced_close(newsk);
+ tcp_done(newsk);
goto exit;
}
EXPORT_SYMBOL(tcp_v4_syn_recv_sock);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index ccab3c8..db10805 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1524,7 +1524,8 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
#endif
if (__inet_inherit_port(sk, newsk) < 0) {
- sock_put(newsk);
+ inet_csk_prepare_forced_close(newsk);
+ tcp_done(newsk);
goto out;
}
__inet6_hash(newsk, NULL);
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 16518f3..67df50e 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -429,7 +429,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
IEEE80211_BAR_CTRL_TID_INFO_MASK) >>
IEEE80211_BAR_CTRL_TID_INFO_SHIFT;
- ieee80211_set_bar_pending(sta, tid, ssn);
+ if (local->hw.flags &
+ IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL)
+ ieee80211_stop_tx_ba_session(&sta->sta, tid);
+ else
+ ieee80211_set_bar_pending(sta, tid, ssn);
}
}
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 29b942c..f08b9166 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -876,7 +876,7 @@ ok:
q->now = psched_get_time();
start_at = jiffies;
- next_event = q->now + 5 * PSCHED_TICKS_PER_SEC;
+ next_event = q->now + 5LLU * PSCHED_TICKS_PER_SEC;
for (level = 0; level < TC_HTB_MAXDEPTH; level++) {
/* common case optimization - skip event handler quickly */
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index c90b832..56c3f85 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -880,16 +880,35 @@ struct rpc_task *rpc_new_task(const struct rpc_task_setup *setup_data)
return task;
}
+/*
+ * rpc_free_task - release rpc task and perform cleanups
+ *
+ * Note that we free up the rpc_task _after_ rpc_release_calldata()
+ * in order to work around a workqueue dependency issue.
+ *
+ * Tejun Heo states:
+ * "Workqueue currently considers two work items to be the same if they're
+ * on the same address and won't execute them concurrently - ie. it
+ * makes a work item which is queued again while being executed wait
+ * for the previous execution to complete.
+ *
+ * If a work function frees the work item, and then waits for an event
+ * which should be performed by another work item and *that* work item
+ * recycles the freed work item, it can create a false dependency loop.
+ * There really is no reliable way to detect this short of verifying
+ * every memory free."
+ *
+ */
static void rpc_free_task(struct rpc_task *task)
{
- const struct rpc_call_ops *tk_ops = task->tk_ops;
- void *calldata = task->tk_calldata;
+ unsigned short tk_flags = task->tk_flags;
+
+ rpc_release_calldata(task->tk_ops, task->tk_calldata);
- if (task->tk_flags & RPC_TASK_DYNAMIC) {
+ if (tk_flags & RPC_TASK_DYNAMIC) {
dprintk("RPC: %5u freeing task\n", task->tk_pid);
mempool_free(task, rpc_task_mempool);
}
- rpc_release_calldata(tk_ops, calldata);
}
static void rpc_async_release(struct work_struct *work)
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