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patch-3.4.14-15
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patch-3.4.14-15
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diff --git a/Makefile b/Makefile
index d174c84..fe9ea67 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 4
-SUBLEVEL = 14
+SUBLEVEL = 15
EXTRAVERSION =
NAME = Saber-toothed Squirrel
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 352322a..e14ae11 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1405,6 +1405,16 @@ config PL310_ERRATA_769419
on systems with an outer cache, the store buffer is drained
explicitly.
+config ARM_ERRATA_775420
+ bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
+ depends on CPU_V7
+ help
+ This option enables the workaround for the 775420 Cortex-A9 (r2p2,
+ r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
+ operation aborts with MMU exception, it might cause the processor
+ to deadlock. This workaround puts DSB before executing ISB if
+ an abort may occur on cache maintenance.
+
endmenu
source "arch/arm/common/Kconfig"
diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h
index 3d5fc41..bf53047 100644
--- a/arch/arm/include/asm/vfpmacros.h
+++ b/arch/arm/include/asm/vfpmacros.h
@@ -28,7 +28,7 @@
ldr \tmp, =elf_hwcap @ may not have MVFR regs
ldr \tmp, [\tmp, #0]
tst \tmp, #HWCAP_VFPv3D16
- ldceq p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31}
+ ldceql p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31}
addne \base, \base, #32*4 @ step over unused register space
#else
VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0
@@ -52,7 +52,7 @@
ldr \tmp, =elf_hwcap @ may not have MVFR regs
ldr \tmp, [\tmp, #0]
tst \tmp, #HWCAP_VFPv3D16
- stceq p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31}
+ stceql p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31}
addne \base, \base, #32*4 @ step over unused register space
#else
VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index a655d3d..82ab2c5 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -211,6 +211,9 @@ ENTRY(v7_coherent_user_range)
* isn't mapped, just try the next page.
*/
9001:
+#ifdef CONFIG_ARM_ERRATA_775420
+ dsb
+#endif
mov r12, r12, lsr #12
mov r12, r12, lsl #12
add r12, r12, #4096
diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index f4546e9..23817a6 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -283,6 +283,15 @@ static int kgdb_mips_notify(struct notifier_block *self, unsigned long cmd,
struct pt_regs *regs = args->regs;
int trap = (regs->cp0_cause & 0x7c) >> 2;
+#ifdef CONFIG_KPROBES
+ /*
+ * Return immediately if the kprobes fault notifier has set
+ * DIE_PAGE_FAULT.
+ */
+ if (cmd == DIE_PAGE_FAULT)
+ return NOTIFY_DONE;
+#endif /* CONFIG_KPROBES */
+
/* Userspace events, ignore. */
if (user_mode(regs))
return NOTIFY_DONE;
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 40edfc3..5910054 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -942,7 +942,16 @@ static void xen_write_cr4(unsigned long cr4)
native_write_cr4(cr4);
}
-
+#ifdef CONFIG_X86_64
+static inline unsigned long xen_read_cr8(void)
+{
+ return 0;
+}
+static inline void xen_write_cr8(unsigned long val)
+{
+ BUG_ON(val);
+}
+#endif
static int xen_write_msr_safe(unsigned int msr, unsigned low, unsigned high)
{
int ret;
@@ -1111,6 +1120,11 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
.read_cr4_safe = native_read_cr4_safe,
.write_cr4 = xen_write_cr4,
+#ifdef CONFIG_X86_64
+ .read_cr8 = xen_read_cr8,
+ .write_cr8 = xen_write_cr8,
+#endif
+
.wbinvd = native_wbinvd,
.read_msr = native_read_msr_safe,
@@ -1121,6 +1135,8 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
.read_tsc = native_read_tsc,
.read_pmc = native_read_pmc,
+ .read_tscp = native_read_tscp,
+
.iret = xen_iret,
.irq_enable_sysexit = xen_sysexit,
#ifdef CONFIG_X86_64
diff --git a/block/blk-core.c b/block/blk-core.c
index 1f61b74..85fd410 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -601,7 +601,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
q->request_fn = rfn;
q->prep_rq_fn = NULL;
q->unprep_rq_fn = NULL;
- q->queue_flags = QUEUE_FLAG_DEFAULT;
+ q->queue_flags |= QUEUE_FLAG_DEFAULT;
/* Override internal queue lock with supplied lock pointer */
if (lock)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 7edaccc..a51df96 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -71,9 +71,6 @@ enum ec_command {
#define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */
#define ACPI_EC_MSI_UDELAY 550 /* Wait 550us for MSI EC */
-#define ACPI_EC_STORM_THRESHOLD 8 /* number of false interrupts
- per one transaction */
-
enum {
EC_FLAGS_QUERY_PENDING, /* Query is pending */
EC_FLAGS_GPE_STORM, /* GPE storm detected */
@@ -87,6 +84,15 @@ static unsigned int ec_delay __read_mostly = ACPI_EC_DELAY;
module_param(ec_delay, uint, 0644);
MODULE_PARM_DESC(ec_delay, "Timeout(ms) waited until an EC command completes");
+/*
+ * If the number of false interrupts per one transaction exceeds
+ * this threshold, will think there is a GPE storm happened and
+ * will disable the GPE for normal transaction.
+ */
+static unsigned int ec_storm_threshold __read_mostly = 8;
+module_param(ec_storm_threshold, uint, 0644);
+MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
+
/* If we find an EC via the ECDT, we need to keep a ptr to its context */
/* External interfaces use first EC only, so remember */
typedef int (*acpi_ec_query_func) (void *data);
@@ -319,7 +325,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
msleep(1);
/* It is safe to enable the GPE outside of the transaction. */
acpi_enable_gpe(NULL, ec->gpe);
- } else if (t->irq_count > ACPI_EC_STORM_THRESHOLD) {
+ } else if (t->irq_count > ec_storm_threshold) {
pr_info(PREFIX "GPE storm detected, "
"transactions will use polling mode\n");
set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
@@ -924,6 +930,17 @@ static int ec_flag_msi(const struct dmi_system_id *id)
return 0;
}
+/*
+ * Clevo M720 notebook actually works ok with IRQ mode, if we lifted
+ * the GPE storm threshold back to 20
+ */
+static int ec_enlarge_storm_threshold(const struct dmi_system_id *id)
+{
+ pr_debug("Setting the EC GPE storm threshold to 20\n");
+ ec_storm_threshold = 20;
+ return 0;
+}
+
static struct dmi_system_id __initdata ec_dmi_table[] = {
{
ec_skip_dsdt_scan, "Compal JFL92", {
@@ -955,10 +972,13 @@ static struct dmi_system_id __initdata ec_dmi_table[] = {
{
ec_validate_ecdt, "ASUS hardware", {
DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc.") }, NULL},
+ {
+ ec_enlarge_storm_threshold, "CLEVO hardware", {
+ DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M720T/M730T"),}, NULL},
{},
};
-
int __init acpi_ec_ecdt_probe(void)
{
acpi_status status;
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 08427ab..27f8ddf 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1186,17 +1186,20 @@ ssize_t tpm_write(struct file *file, const char __user *buf,
size_t size, loff_t *off)
{
struct tpm_chip *chip = file->private_data;
- size_t in_size = size, out_size;
+ size_t in_size = size;
+ ssize_t out_size;
/* cannot perform a write until the read has cleared
- either via tpm_read or a user_read_timer timeout */
- while (atomic_read(&chip->data_pending) != 0)
- msleep(TPM_TIMEOUT);
-
- mutex_lock(&chip->buffer_mutex);
+ either via tpm_read or a user_read_timer timeout.
+ This also prevents splitted buffered writes from blocking here.
+ */
+ if (atomic_read(&chip->data_pending) != 0)
+ return -EBUSY;
if (in_size > TPM_BUFSIZE)
- in_size = TPM_BUFSIZE;
+ return -E2BIG;
+
+ mutex_lock(&chip->buffer_mutex);
if (copy_from_user
(chip->data_buffer, (void __user *) buf, in_size)) {
@@ -1206,6 +1209,10 @@ ssize_t tpm_write(struct file *file, const char __user *buf,
/* atomic tpm command send and result receive */
out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
+ if (out_size < 0) {
+ mutex_unlock(&chip->buffer_mutex);
+ return out_size;
+ }
atomic_set(&chip->data_pending, out_size);
mutex_unlock(&chip->buffer_mutex);
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 2e6b245..b8e4809 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -471,8 +471,8 @@ static int ioctl_get_info(struct client *client, union ioctl_arg *arg)
client->bus_reset_closure = a->bus_reset_closure;
if (a->bus_reset != 0) {
fill_bus_reset_event(&bus_reset, client);
- ret = copy_to_user(u64_to_uptr(a->bus_reset),
- &bus_reset, sizeof(bus_reset));
+ /* unaligned size of bus_reset is 36 bytes */
+ ret = copy_to_user(u64_to_uptr(a->bus_reset), &bus_reset, 36);
}
if (ret == 0 && list_empty(&client->link))
list_add_tail(&client->link, &client->device->client_list);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 498bcbe..f3b06f0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5318,7 +5318,7 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
/* default to 8bpc */
pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN);
if (is_dp) {
- if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
+ if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
pipeconf |= PIPECONF_BPP_6 |
PIPECONF_DITHER_EN |
PIPECONF_DITHER_TYPE_SP;
@@ -5782,7 +5782,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
/* determine panel color depth */
temp = I915_READ(PIPECONF(pipe));
temp &= ~PIPE_BPC_MASK;
- dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode);
+ dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, adjusted_mode);
switch (pipe_bpp) {
case 18:
temp |= PIPE_6BPC;
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index 42db254..1461e2c 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -973,11 +973,7 @@ static void radeon_legacy_tmds_ext_mode_set(struct drm_encoder *encoder,
static void radeon_ext_tmds_enc_destroy(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv;
- if (tmds) {
- if (tmds->i2c_bus)
- radeon_i2c_destroy(tmds->i2c_bus);
- }
+ /* don't destroy the i2c bus record here, this will be done in radeon_i2c_fini */
kfree(radeon_encoder->enc_priv);
drm_encoder_cleanup(encoder);
kfree(radeon_encoder);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1f7e8cd..4a038cd 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3019,7 +3019,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
else {
bad_sectors -= (sector - first_bad);
if (max_sync > bad_sectors)
- max_sync = max_sync;
+ max_sync = bad_sectors;
continue;
}
}
diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
index b83897f..1ab8067 100644
--- a/drivers/net/ethernet/intel/e1000e/e1000.h
+++ b/drivers/net/ethernet/intel/e1000e/e1000.h
@@ -175,13 +175,13 @@ struct e1000_info;
/*
* in the case of WTHRESH, it appears at least the 82571/2 hardware
* writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
- * WTHRESH=4, and since we want 64 bytes at a time written back, set
- * it to 5
+ * WTHRESH=4, so a setting of 5 gives the most efficient bus
+ * utilization but to avoid possible Tx stalls, set it to 1
*/
#define E1000_TXDCTL_DMA_BURST_ENABLE \
(E1000_TXDCTL_GRAN | /* set descriptor granularity */ \
E1000_TXDCTL_COUNT_DESC | \
- (5 << 16) | /* wthresh must be +1 more than desired */\
+ (1 << 16) | /* wthresh must be +1 more than desired */\
(1 << 8) | /* hthresh */ \
0x1f) /* pthresh */
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 5621d5b..7e88aaf 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -2806,7 +2806,7 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
* set up some performance related parameters to encourage the
* hardware to use the bus more efficiently in bursts, depends
* on the tx_int_delay to be enabled,
- * wthresh = 5 ==> burst write a cacheline (64 bytes) at a time
+ * wthresh = 1 ==> burst write is disabled to avoid Tx stalls
* hthresh = 1 ==> prefetch when one or more available
* pthresh = 0x1f ==> prefetch if internal cache 31 or less
* BEWARE: this seems to work but should be considered first if
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 6264182..5eb53c9 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -121,7 +121,7 @@ static void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
if (ath_tx_start(hw, skb, &txctl) != 0) {
ath_dbg(common, XMIT, "CABQ TX failed\n");
- dev_kfree_skb_any(skb);
+ ieee80211_free_txskb(hw, skb);
}
}
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index d5dabcb..91e2c4f 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1147,7 +1147,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
return;
exit:
- dev_kfree_skb_any(skb);
+ ieee80211_free_txskb(hw, skb);
}
static void ath9k_stop(struct ieee80211_hw *hw)
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 4d57139..b78773b 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -64,8 +64,7 @@ static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
struct ath_txq *txq,
struct ath_atx_tid *tid,
- struct sk_buff *skb,
- bool dequeue);
+ struct sk_buff *skb);
enum {
MCS_HT20,
@@ -201,7 +200,15 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
fi = get_frame_info(skb);
bf = fi->bf;
- if (bf && fi->retries) {
+ if (!bf) {
+ bf = ath_tx_setup_buffer(sc, txq, tid, skb);
+ if (!bf) {
+ ieee80211_free_txskb(sc->hw, skb);
+ continue;
+ }
+ }
+
+ if (fi->retries) {
list_add_tail(&bf->list, &bf_head);
ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
@@ -812,10 +819,13 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
fi = get_frame_info(skb);
bf = fi->bf;
if (!fi->bf)
- bf = ath_tx_setup_buffer(sc, txq, tid, skb, true);
+ bf = ath_tx_setup_buffer(sc, txq, tid, skb);
- if (!bf)
+ if (!bf) {
+ __skb_unlink(skb, &tid->buf_q);
+ ieee80211_free_txskb(sc->hw, skb);
continue;
+ }
bf->bf_state.bf_type = BUF_AMPDU | BUF_AGGR;
seqno = bf->bf_state.seqno;
@@ -1717,9 +1727,11 @@ static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
return;
}
- bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb, false);
- if (!bf)
+ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
+ if (!bf) {
+ ieee80211_free_txskb(sc->hw, skb);
return;
+ }
bf->bf_state.bf_type = BUF_AMPDU;
INIT_LIST_HEAD(&bf_head);
@@ -1743,11 +1755,6 @@ static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *bf;
bf = fi->bf;
- if (!bf)
- bf = ath_tx_setup_buffer(sc, txq, tid, skb, false);
-
- if (!bf)
- return;
INIT_LIST_HEAD(&bf_head);
list_add_tail(&bf->list, &bf_head);
@@ -1820,8 +1827,7 @@ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate)
static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
struct ath_txq *txq,
struct ath_atx_tid *tid,
- struct sk_buff *skb,
- bool dequeue)
+ struct sk_buff *skb)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_frame_info *fi = get_frame_info(skb);
@@ -1833,7 +1839,7 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
bf = ath_tx_get_buffer(sc);
if (!bf) {
ath_dbg(common, XMIT, "TX buffers are full\n");
- goto error;
+ return NULL;
}
ATH_TXBUF_RESET(bf);
@@ -1862,18 +1868,12 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
ath_err(ath9k_hw_common(sc->sc_ah),
"dma_mapping_error() on TX\n");
ath_tx_return_buffer(sc, bf);
- goto error;
+ return NULL;
}
fi->bf = bf;
return bf;
-
-error:
- if (dequeue)
- __skb_unlink(skb, &tid->buf_q);
- dev_kfree_skb_any(skb);
- return NULL;
}
/* FIXME: tx power */
@@ -1902,9 +1902,14 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct sk_buff *skb,
*/
ath_tx_send_ampdu(sc, tid, skb, txctl);
} else {
- bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb, false);
- if (!bf)
+ bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
+ if (!bf) {
+ if (txctl->paprd)
+ dev_kfree_skb_any(skb);
+ else
+ ieee80211_free_txskb(sc->hw, skb);
return;
+ }
bf->bf_state.bfs_paprd = txctl->paprd;
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 8a5e25d..b0fefc4 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -548,12 +548,42 @@ static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
}
+static int is_firmware_flash_cmd(u8 *cdb)
+{
+ return cdb[0] == BMIC_WRITE && cdb[6] == BMIC_FLASH_FIRMWARE;
+}
+
+/*
+ * During firmware flash, the heartbeat register may not update as frequently
+ * as it should. So we dial down lockup detection during firmware flash. and
+ * dial it back up when firmware flash completes.
+ */
+#define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ)
+#define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ)
+static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ if (!is_firmware_flash_cmd(c->Request.CDB))
+ return;
+ atomic_inc(&h->firmware_flash_in_progress);
+ h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH;
+}
+
+static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ if (is_firmware_flash_cmd(c->Request.CDB) &&
+ atomic_dec_and_test(&h->firmware_flash_in_progress))
+ h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
+}
+
static void enqueue_cmd_and_start_io(struct ctlr_info *h,
struct CommandList *c)
{
unsigned long flags;
set_performant_mode(h, c);
+ dial_down_lockup_detection_during_fw_flash(h, c);
spin_lock_irqsave(&h->lock, flags);
addQ(&h->reqQ, c);
h->Qdepth++;
@@ -3049,6 +3079,7 @@ static inline int bad_tag(struct ctlr_info *h, u32 tag_index,
static inline void finish_cmd(struct CommandList *c, u32 raw_tag)
{
removeQ(c);
+ dial_up_lockup_detection_on_fw_flash_complete(c->h, c);
if (likely(c->cmd_type == CMD_SCSI))
complete_scsi_command(c);
else if (c->cmd_type == CMD_IOCTL_PEND)
@@ -4189,9 +4220,6 @@ static void controller_lockup_detected(struct ctlr_info *h)
spin_unlock_irqrestore(&h->lock, flags);
}
-#define HEARTBEAT_SAMPLE_INTERVAL (10 * HZ)
-#define HEARTBEAT_CHECK_MINIMUM_INTERVAL (HEARTBEAT_SAMPLE_INTERVAL / 2)
-
static void detect_controller_lockup(struct ctlr_info *h)
{
u64 now;
@@ -4202,7 +4230,7 @@ static void detect_controller_lockup(struct ctlr_info *h)
now = get_jiffies_64();
/* If we've received an interrupt recently, we're ok. */
if (time_after64(h->last_intr_timestamp +
- (HEARTBEAT_CHECK_MINIMUM_INTERVAL), now))
+ (h->heartbeat_sample_interval), now))
return;
/*
@@ -4211,7 +4239,7 @@ static void detect_controller_lockup(struct ctlr_info *h)
* otherwise don't care about signals in this thread.
*/
if (time_after64(h->last_heartbeat_timestamp +
- (HEARTBEAT_CHECK_MINIMUM_INTERVAL), now))
+ (h->heartbeat_sample_interval), now))
return;
/* If heartbeat has not changed since we last looked, we're not ok. */
@@ -4253,6 +4281,7 @@ static void add_ctlr_to_lockup_detector_list(struct ctlr_info *h)
{
unsigned long flags;
+ h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
spin_lock_irqsave(&lockup_detector_lock, flags);
list_add_tail(&h->lockup_list, &hpsa_ctlr_list);
spin_unlock_irqrestore(&lockup_detector_lock, flags);
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index 7b28d54..6f30a6f 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -123,6 +123,8 @@ struct ctlr_info {
u64 last_intr_timestamp;
u32 last_heartbeat;
u64 last_heartbeat_timestamp;
+ u32 heartbeat_sample_interval;
+ atomic_t firmware_flash_in_progress;
u32 lockup_detected;
struct list_head lockup_list;
};
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 8049815..cdd742e 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -162,6 +162,7 @@ struct SenseSubsystem_info {
#define BMIC_WRITE 0x27
#define BMIC_CACHE_FLUSH 0xc2
#define HPSA_CACHE_FLUSH 0x01 /* C2 was already being used by HPSA */
+#define BMIC_FLASH_FIRMWARE 0xF7
/* Command List Structure */
union SCSI3Addr {
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 182d5a5..f4cc413 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2054,7 +2054,7 @@ static void unmap_region(sector_t lba, unsigned int len)
block = lba + alignment;
rem = do_div(block, granularity);
- if (rem == 0 && lba + granularity <= end && block < map_size) {
+ if (rem == 0 && lba + granularity < end && block < map_size) {
clear_bit(block, map_storep);
if (scsi_debug_lbprz)
memset(fake_storep +
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 83a1972..40a4570 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1211,7 +1211,12 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
/*
* At this point, all outstanding requests in the adapter
* should have been flushed out and return to us
+ * There is a potential race here where the host may be in
+ * the process of responding when we return from here.
+ * Just wait for all in-transit packets to be accounted for
+ * before we return from here.
*/
+ storvsc_wait_to_drain(stor_device);
return SUCCESS;
}
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index e326d17..23e122a 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -3196,7 +3196,6 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
len += 1;
if ((len + payload_len) > buffer_len) {
- spin_unlock(&tiqn->tiqn_tpg_lock);
end_of_buf = 1;
goto eob;
}
@@ -3349,6 +3348,7 @@ static int iscsit_send_reject(
hdr->opcode = ISCSI_OP_REJECT;
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
hton24(hdr->dlength, ISCSI_HDR_LEN);
+ hdr->ffffffff = 0xffffffff;
cmd->stat_sn = conn->stat_sn++;
hdr->statsn = cpu_to_be32(cmd->stat_sn);
hdr->exp_cmdsn = cpu_to_be32(conn->sess->exp_cmd_sn);
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index d1c4bc2..1596aec 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -25,10 +25,10 @@
#define NA_DATAOUT_TIMEOUT_RETRIES 5
#define NA_DATAOUT_TIMEOUT_RETRIES_MAX 15
#define NA_DATAOUT_TIMEOUT_RETRIES_MIN 1
-#define NA_NOPIN_TIMEOUT 5
+#define NA_NOPIN_TIMEOUT 15
#define NA_NOPIN_TIMEOUT_MAX 60
#define NA_NOPIN_TIMEOUT_MIN 3
-#define NA_NOPIN_RESPONSE_TIMEOUT 5
+#define NA_NOPIN_RESPONSE_TIMEOUT 30
#define NA_NOPIN_RESPONSE_TIMEOUT_MAX 60
#define NA_NOPIN_RESPONSE_TIMEOUT_MIN 3
#define NA_RANDOM_DATAIN_PDU_OFFSETS 0
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 879d8d0..c3d7bf54 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -672,6 +672,12 @@ int iscsit_ta_generate_node_acls(
pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n",
tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled");
+ if (flag == 1 && a->cache_dynamic_acls == 0) {
+ pr_debug("Explicitly setting cache_dynamic_acls=1 when "
+ "generate_node_acls=1\n");
+ a->cache_dynamic_acls = 1;
+ }
+
return 0;
}
@@ -711,6 +717,12 @@ int iscsit_ta_cache_dynamic_acls(
return -EINVAL;
}
+ if (a->generate_node_acls == 1 && flag == 0) {
+ pr_debug("Skipping cache_dynamic_acls=0 when"
+ " generate_node_acls=1\n");
+ return 0;
+ }
+
a->cache_dynamic_acls = flag;
pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group"
" ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ?
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index cbb6653..3f90d4b 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -3115,6 +3115,7 @@ static int __init target_core_init_configfs(void)
GFP_KERNEL);
if (!target_cg->default_groups) {
pr_err("Unable to allocate target_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
@@ -3130,6 +3131,7 @@ static int __init target_core_init_configfs(void)
GFP_KERNEL);
if (!hba_cg->default_groups) {
pr_err("Unable to allocate hba_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
config_group_init_type_name(&alua_group,
@@ -3145,6 +3147,7 @@ static int __init target_core_init_configfs(void)
GFP_KERNEL);
if (!alua_cg->default_groups) {
pr_err("Unable to allocate alua_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
@@ -3156,14 +3159,17 @@ static int __init target_core_init_configfs(void)
* Add core/alua/lu_gps/default_lu_gp
*/
lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1);
- if (IS_ERR(lu_gp))
+ if (IS_ERR(lu_gp)) {
+ ret = -ENOMEM;
goto out_global;
+ }
lu_gp_cg = &alua_lu_gps_group;
lu_gp_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
GFP_KERNEL);
if (!lu_gp_cg->default_groups) {
pr_err("Unable to allocate lu_gp_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 2156188..18d06be 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3475,6 +3475,19 @@ int con_debug_enter(struct vc_data *vc)
kdb_set(2, setargs);
}
}
+ if (vc->vc_cols < 999) {
+ int colcount;
+ char cols[4];
+ const char *setargs[3] = {
+ "set",
+ "COLUMNS",
+ cols,
+ };
+ if (kdbgetintenv(setargs[0], &colcount)) {
+ snprintf(cols, 4, "%i", vc->vc_cols);
+ kdb_set(2, setargs);
+ }
+ }
#endif /* CONFIG_KGDB_KDB */
return ret;
}
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 1b632cb..7f2fac1 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1551,6 +1551,9 @@ static const struct usb_device_id acm_ids[] = {
Maybe we should define a new
quirk for this. */
},
+ { USB_DEVICE(0x0572, 0x1340), /* Conexant CX93010-2x UCMxx */
+ .driver_info = NO_UNION_NORMAL,
+ },
{ USB_DEVICE(0x1bbb, 0x0003), /* Alcatel OT-I650 */
.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
},
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 9d7bcd9..be6952e 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1735,7 +1735,7 @@ static int __devinit at91udc_probe(struct platform_device *pdev)
int retval;
struct resource *res;
- if (!dev->platform_data) {
+ if (!dev->platform_data && !pdev->dev.of_node) {
/* small (so we copy it) but critical! */
DBG("missing platform_data\n");
return -ENODEV;
diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
index a159b63..85d8110 100644
--- a/drivers/video/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -647,7 +647,7 @@ static ssize_t dlfb_ops_write(struct fb_info *info, const char __user *buf,
result = fb_sys_write(info, buf, count, ppos);
if (result > 0) {
- int start = max((int)(offset / info->fix.line_length) - 1, 0);
+ int start = max((int)(offset / info->fix.line_length), 0);
int lines = min((u32)((result / info->fix.line_length) + 1),
(u32)info->var.yres);
diff --git a/drivers/video/via/via_clock.c b/drivers/video/via/via_clock.c
index af8f26b..db1e392 100644
--- a/drivers/video/via/via_clock.c
+++ b/drivers/video/via/via_clock.c
@@ -25,6 +25,7 @@
#include <linux/kernel.h>
#include <linux/via-core.h>
+#include <asm/olpc.h>
#include "via_clock.h"
#include "global.h"
#include "debug.h"
@@ -289,6 +290,10 @@ static void dummy_set_pll(struct via_pll_config config)
printk(KERN_INFO "Using undocumented set PLL.\n%s", via_slap);
}
+static void noop_set_clock_state(u8 state)
+{
+}
+
void via_clock_init(struct via_clock *clock, int gfx_chip)
{
switch (gfx_chip) {
@@ -346,4 +351,18 @@ void via_clock_init(struct via_clock *clock, int gfx_chip)
break;
}
+
+ if (machine_is_olpc()) {
+ /* The OLPC XO-1.5 cannot suspend/resume reliably if the
+ * IGA1/IGA2 clocks are set as on or off (memory rot
+ * occasionally happens during suspend under such
+ * configurations).
+ *
+ * The only known stable scenario is to leave this bits as-is,
+ * which in their default states are documented to enable the
+ * clock only when it is needed.
+ */
+ clock->set_primary_clock_state = noop_set_clock_state;
+ clock->set_secondary_clock_state = noop_set_clock_state;
+ }
}
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 75e5f1c..8c4292f 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -392,10 +392,12 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
ino->flags |= AUTOFS_INF_PENDING;
spin_unlock(&sbi->fs_lock);
status = autofs4_mount_wait(dentry);
- if (status)
- return ERR_PTR(status);
spin_lock(&sbi->fs_lock);
ino->flags &= ~AUTOFS_INF_PENDING;
+ if (status) {
+ spin_unlock(&sbi->fs_lock);
+ return ERR_PTR(status);
+ }
}
done:
if (!(ino->flags & AUTOFS_INF_EXPIRING)) {
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index fbb2a64..4098ccf 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -89,7 +89,7 @@ static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len,
* FIXME: we should try harder by querying the mds for the ino.
*/
static struct dentry *__fh_to_dentry(struct super_block *sb,
- struct ceph_nfs_fh *fh)
+ struct ceph_nfs_fh *fh, int fh_len)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(sb)->mdsc;
struct inode *inode;
@@ -97,6 +97,9 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
struct ceph_vino vino;
int err;
+ if (fh_len < sizeof(*fh) / 4)
+ return ERR_PTR(-ESTALE);
+
dout("__fh_to_dentry %llx\n", fh->ino);
vino.ino = fh->ino;
vino.snap = CEPH_NOSNAP;
@@ -140,7 +143,7 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
* convert connectable fh to dentry
*/
static struct dentry *__cfh_to_dentry(struct super_block *sb,
- struct ceph_nfs_confh *cfh)
+ struct ceph_nfs_confh *cfh, int fh_len)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(sb)->mdsc;
struct inode *inode;
@@ -148,6 +151,9 @@ static struct dentry *__cfh_to_dentry(struct super_block *sb,
struct ceph_vino vino;
int err;
+ if (fh_len < sizeof(*cfh) / 4)
+ return ERR_PTR(-ESTALE);
+
dout("__cfh_to_dentry %llx (%llx/%x)\n",
cfh->ino, cfh->parent_ino, cfh->parent_name_hash);
@@ -197,9 +203,11 @@ static struct dentry *ceph_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
{
if (fh_type == 1)
- return __fh_to_dentry(sb, (struct ceph_nfs_fh *)fid->raw);
+ return __fh_to_dentry(sb, (struct ceph_nfs_fh *)fid->raw,
+ fh_len);
else
- return __cfh_to_dentry(sb, (struct ceph_nfs_confh *)fid->raw);
+ return __cfh_to_dentry(sb, (struct ceph_nfs_confh *)fid->raw,
+ fh_len);
}
/*
@@ -220,6 +228,8 @@ static struct dentry *ceph_fh_to_parent(struct super_block *sb,
if (fh_type == 1)
return ERR_PTR(-ESTALE);
+ if (fh_len < sizeof(*cfh) / 4)
+ return ERR_PTR(-ESTALE);
pr_debug("fh_to_parent %llx/%d\n", cfh->parent_ino,
cfh->parent_name_hash);
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 867b64c..56e3aa5 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -568,6 +568,8 @@ struct ecryptfs_open_req {
struct inode *ecryptfs_get_inode(struct inode *lower_inode,
struct super_block *sb);
void ecryptfs_i_size_init(const char *page_virt, struct inode *inode);
+int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry,
+ struct inode *ecryptfs_inode);
int ecryptfs_decode_and_decrypt_filename(char **decrypted_name,
size_t *decrypted_name_size,
struct dentry *ecryptfs_dentry,
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 2b17f2f..d45ba45 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -138,29 +138,50 @@ out:
return rc;
}
-static void ecryptfs_vma_close(struct vm_area_struct *vma)
-{
- filemap_write_and_wait(vma->vm_file->f_mapping);
-}
-
-static const struct vm_operations_struct ecryptfs_file_vm_ops = {
- .close = ecryptfs_vma_close,
- .fault = filemap_fault,
-};
+struct kmem_cache *ecryptfs_file_info_cache;
-static int ecryptfs_file_mmap(struct file *file, struct vm_area_struct *vma)
+static int read_or_initialize_metadata(struct dentry *dentry)