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SubjectRe: Linux 4.9.1
diff --git a/Makefile b/Makefile
index b1037774e8e8..ab3cd5128889 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 0
+SUBLEVEL = 1
EXTRAVERSION =
NAME = Roaring Lionus

diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index 940dfb406591..04abdec7f496 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -283,7 +283,7 @@ long arch_ptrace(struct task_struct *child, long request,
/* When I and D space are separate, these will need to be fixed. */
case PTRACE_PEEKTEXT: /* read word at location addr. */
case PTRACE_PEEKDATA:
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp),
+ copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp),
FOLL_FORCE);
ret = -EIO;
if (copied != sizeof(tmp))
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index f193414d0f6f..4986dc0c1dff 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -372,8 +372,7 @@ static int __init xen_guest_init(void)
* for secondary CPUs as they are brought up.
* For uniformity we use VCPUOP_register_vcpu_info even on cpu0.
*/
- xen_vcpu_info = __alloc_percpu(sizeof(struct vcpu_info),
- sizeof(struct vcpu_info));
+ xen_vcpu_info = alloc_percpu(struct vcpu_info);
if (xen_vcpu_info == NULL)
return -ENOMEM;

diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 8d79286ee4e8..360d99645163 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -270,7 +270,7 @@ long arch_ptrace(struct task_struct *child, long request,
switch (bfin_mem_access_type(addr, to_copy)) {
case BFIN_MEM_ACCESS_CORE:
case BFIN_MEM_ACCESS_CORE_ONLY:
- copied = access_process_vm(child, addr, &tmp,
+ copied = ptrace_access_vm(child, addr, &tmp,
to_copy, FOLL_FORCE);
if (copied)
break;
@@ -323,7 +323,7 @@ long arch_ptrace(struct task_struct *child, long request,
switch (bfin_mem_access_type(addr, to_copy)) {
case BFIN_MEM_ACCESS_CORE:
case BFIN_MEM_ACCESS_CORE_ONLY:
- copied = access_process_vm(child, addr, &data,
+ copied = ptrace_access_vm(child, addr, &data,
to_copy,
FOLL_FORCE | FOLL_WRITE);
break;
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index f0df654ac6fc..fe1f9cf7b391 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -147,7 +147,7 @@ long arch_ptrace(struct task_struct *child, long request,
/* The trampoline page is globally mapped, no page table to traverse.*/
tmp = *(unsigned long*)addr;
} else {
- copied = access_process_vm(child, addr, &tmp, sizeof(tmp), FOLL_FORCE);
+ copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp), FOLL_FORCE);

if (copied != sizeof(tmp))
break;
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 31aa8c0f68e1..36f660da8124 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1159,7 +1159,7 @@ arch_ptrace (struct task_struct *child, long request,
case PTRACE_PEEKTEXT:
case PTRACE_PEEKDATA:
/* read word at location addr */
- if (access_process_vm(child, addr, &data, sizeof(data),
+ if (ptrace_access_vm(child, addr, &data, sizeof(data),
FOLL_FORCE)
!= sizeof(data))
return -EIO;
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 7e71a4e0281b..5fcbdcd7abd0 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -69,7 +69,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *) (unsigned long) addr) != 0)
break;

- copied = access_process_vm(child, (u64)addrOthers, &tmp,
+ copied = ptrace_access_vm(child, (u64)addrOthers, &tmp,
sizeof(tmp), FOLL_FORCE);
if (copied != sizeof(tmp))
break;
@@ -178,7 +178,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *) (unsigned long) addr) != 0)
break;
ret = 0;
- if (access_process_vm(child, (u64)addrOthers, &data,
+ if (ptrace_access_vm(child, (u64)addrOthers, &data,
sizeof(data),
FOLL_FORCE | FOLL_WRITE) == sizeof(data))
break;
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 010b7b310237..1e887f3a61a6 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -73,7 +73,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *)addr) != 0)
break;

- copied = access_process_vm(child, (u64)addrOthers, &tmp,
+ copied = ptrace_access_vm(child, (u64)addrOthers, &tmp,
sizeof(tmp), FOLL_FORCE);
if (copied != sizeof(tmp))
break;
@@ -178,7 +178,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (get_user(addrOthers, (u32 __user * __user *)addr) != 0)
break;
ret = 0;
- if (access_process_vm(child, (u64)addrOthers, &tmp,
+ if (ptrace_access_vm(child, (u64)addrOthers, &tmp,
sizeof(tmp),
FOLL_FORCE | FOLL_WRITE) == sizeof(tmp))
break;
diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..44b8762fa0c7
--- /dev/null
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -0,0 +1,16 @@
+#include <asm/ftrace.h>
+#include <asm/uaccess.h>
+#include <asm/string.h>
+#include <asm/page.h>
+#include <asm/checksum.h>
+
+#include <asm-generic/asm-prototypes.h>
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/special_insns.h>
+#include <asm/preempt.h>
+
+#ifndef CONFIG_X86_CMPXCHG64
+extern void cmpxchg8b_emu(void);
+#endif
diff --git a/block/blk-mq.c b/block/blk-mq.c
index f3d27a6dee09..ad459e4e8071 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1332,9 +1332,9 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
blk_mq_put_ctx(data.ctx);
if (!old_rq)
goto done;
- if (!blk_mq_direct_issue_request(old_rq, &cookie))
- goto done;
- blk_mq_insert_request(old_rq, false, true, true);
+ if (test_bit(BLK_MQ_S_STOPPED, &data.hctx->state) ||
+ blk_mq_direct_issue_request(old_rq, &cookie) != 0)
+ blk_mq_insert_request(old_rq, false, true, true);
goto done;
}

diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
index 4c7c6da7a989..6441dfda489f 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/base/power/opp/core.c
@@ -584,6 +584,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
struct clk *clk;
unsigned long freq, old_freq;
unsigned long u_volt, u_volt_min, u_volt_max;
+ unsigned long old_u_volt, old_u_volt_min, old_u_volt_max;
int ret;

if (unlikely(!target_freq)) {
@@ -633,6 +634,14 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
return ret;
}

+ if (IS_ERR(old_opp)) {
+ old_u_volt = 0;
+ } else {
+ old_u_volt = old_opp->u_volt;
+ old_u_volt_min = old_opp->u_volt_min;
+ old_u_volt_max = old_opp->u_volt_max;
+ }
+
u_volt = opp->u_volt;
u_volt_min = opp->u_volt_min;
u_volt_max = opp->u_volt_max;
@@ -677,9 +686,10 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
__func__, old_freq);
restore_voltage:
/* This shouldn't harm even if the voltages weren't updated earlier */
- if (!IS_ERR(old_opp))
- _set_opp_voltage(dev, reg, old_opp->u_volt,
- old_opp->u_volt_min, old_opp->u_volt_max);
+ if (old_u_volt) {
+ _set_opp_voltage(dev, reg, old_u_volt, old_u_volt_min,
+ old_u_volt_max);
+ }

return ret;
}
@@ -1316,7 +1326,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
* that this function is *NOT* called under RCU protection or in contexts where
* mutex cannot be locked.
*/
-int dev_pm_opp_set_regulator(struct device *dev, const char *name)
+struct opp_table *dev_pm_opp_set_regulator(struct device *dev, const char *name)
{
struct opp_table *opp_table;
struct regulator *reg;
@@ -1354,20 +1364,20 @@ int dev_pm_opp_set_regulator(struct device *dev, const char *name)
opp_table->regulator = reg;

mutex_unlock(&opp_table_lock);
- return 0;
+ return opp_table;

err:
_remove_opp_table(opp_table);
unlock:
mutex_unlock(&opp_table_lock);

- return ret;
+ return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_set_regulator);

/**
* dev_pm_opp_put_regulator() - Releases resources blocked for regulator
- * @dev: Device for which regulator was set.
+ * @opp_table: OPP table returned from dev_pm_opp_set_regulator().
*
* Locking: The internal opp_table and opp structures are RCU protected.
* Hence this function internally uses RCU updater strategy with mutex locks
@@ -1375,22 +1385,12 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_set_regulator);
* that this function is *NOT* called under RCU protection or in contexts where
* mutex cannot be locked.
*/
-void dev_pm_opp_put_regulator(struct device *dev)
+void dev_pm_opp_put_regulator(struct opp_table *opp_table)
{
- struct opp_table *opp_table;
-
mutex_lock(&opp_table_lock);

- /* Check for existing table for 'dev' first */
- opp_table = _find_opp_table(dev);
- if (IS_ERR(opp_table)) {
- dev_err(dev, "Failed to find opp_table: %ld\n",
- PTR_ERR(opp_table));
- goto unlock;
- }
-
if (IS_ERR(opp_table->regulator)) {
- dev_err(dev, "%s: Doesn't have regulator set\n", __func__);
+ pr_err("%s: Doesn't have regulator set\n", __func__);
goto unlock;
}

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index fa1b7a90ba11..4af818766797 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1646,7 +1646,7 @@ static int loop_queue_rq(struct blk_mq_hw_ctx *hctx,
blk_mq_start_request(bd->rq);

if (lo->lo_state != Lo_bound)
- return -EIO;
+ return BLK_MQ_RQ_QUEUE_ERROR;

switch (req_op(cmd->rq)) {
case REQ_OP_FLUSH:
diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c
index 62028f483bba..a2ab00831df1 100644
--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -307,7 +307,6 @@ static int tpmfront_probe(struct xenbus_device *dev,
rv = setup_ring(dev, priv);
if (rv) {
chip = dev_get_drvdata(&dev->dev);
- tpm_chip_unregister(chip);
ring_free(priv);
return rv;
}
diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c
index 8831e1a05367..11d8aa3ec186 100644
--- a/drivers/clk/ti/clk-3xxx.c
+++ b/drivers/clk/ti/clk-3xxx.c
@@ -22,13 +22,6 @@

#include "clock.h"

-/*
- * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
- * that are sourced by DPLL5, and both of these require this clock
- * to be at 120 MHz for proper operation.
- */
-#define DPLL5_FREQ_FOR_USBHOST 120000000
-
#define OMAP3430ES2_ST_DSS_IDLE_SHIFT 1
#define OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT 5
#define OMAP3430ES2_ST_SSI_IDLE_SHIFT 8
@@ -546,14 +539,21 @@ void __init omap3_clk_lock_dpll5(void)
struct clk *dpll5_clk;
struct clk *dpll5_m2_clk;

+ /*
+ * Errata sprz319f advisory 2.1 documents a USB host clock drift issue
+ * that can be worked around using specially crafted dpll5 settings
+ * with a dpll5_m2 divider set to 8. Set the dpll5 rate to 8x the USB
+ * host clock rate, its .set_rate handler() will detect that frequency
+ * and use the errata settings.
+ */
dpll5_clk = clk_get(NULL, "dpll5_ck");
- clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST);
+ clk_set_rate(dpll5_clk, OMAP3_DPLL5_FREQ_FOR_USBHOST * 8);
clk_prepare_enable(dpll5_clk);

- /* Program dpll5_m2_clk divider for no division */
+ /* Program dpll5_m2_clk divider */
dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck");
clk_prepare_enable(dpll5_m2_clk);
- clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST);
+ clk_set_rate(dpll5_m2_clk, OMAP3_DPLL5_FREQ_FOR_USBHOST);

clk_disable_unprepare(dpll5_m2_clk);
clk_disable_unprepare(dpll5_clk);
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 90f3f472ae1c..13c37f48d9d6 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -257,11 +257,20 @@ long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
unsigned long parent_rate);

+/*
+ * OMAP3_DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
+ * that are sourced by DPLL5, and both of these require this clock
+ * to be at 120 MHz for proper operation.
+ */
+#define OMAP3_DPLL5_FREQ_FOR_USBHOST 120000000
+
unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
unsigned long parent_rate);
int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate, u8 index);
+int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate);
void omap3_clk_lock_dpll5(void);

unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c
index 9fc8754a6e61..4b9a419d8e14 100644
--- a/drivers/clk/ti/dpll.c
+++ b/drivers/clk/ti/dpll.c
@@ -114,6 +114,18 @@ static const struct clk_ops omap3_dpll_ck_ops = {
.round_rate = &omap2_dpll_round_rate,
};

+static const struct clk_ops omap3_dpll5_ck_ops = {
+ .enable = &omap3_noncore_dpll_enable,
+ .disable = &omap3_noncore_dpll_disable,
+ .get_parent = &omap2_init_dpll_parent,
+ .recalc_rate = &omap3_dpll_recalc,
+ .set_rate = &omap3_dpll5_set_rate,
+ .set_parent = &omap3_noncore_dpll_set_parent,
+ .set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
+ .determine_rate = &omap3_noncore_dpll_determine_rate,
+ .round_rate = &omap2_dpll_round_rate,
+};
+
static const struct clk_ops omap3_dpll_per_ck_ops = {
.enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable,
@@ -474,7 +486,12 @@ static void __init of_ti_omap3_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};

- of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
+ if ((of_machine_is_compatible("ti,omap3630") ||
+ of_machine_is_compatible("ti,omap36xx")) &&
+ !strcmp(node->name, "dpll5_ck"))
+ of_ti_dpll_setup(node, &omap3_dpll5_ck_ops, &dd);
+ else
+ of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_dpll_clock, "ti,omap3-dpll-clock",
of_ti_omap3_dpll_setup);
diff --git a/drivers/clk/ti/dpll3xxx.c b/drivers/clk/ti/dpll3xxx.c
index 88f2ce81ba55..4cdd28a25584 100644
--- a/drivers/clk/ti/dpll3xxx.c
+++ b/drivers/clk/ti/dpll3xxx.c
@@ -838,3 +838,70 @@ int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate,
index);
}
+
+/* Apply DM3730 errata sprz319 advisory 2.1. */
+static bool omap3_dpll5_apply_errata(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct omap3_dpll5_settings {
+ unsigned int rate, m, n;
+ };
+
+ static const struct omap3_dpll5_settings precomputed[] = {
+ /*
+ * From DM3730 errata advisory 2.1, table 35 and 36.
+ * The N value is increased by 1 compared to the tables as the
+ * errata lists register values while last_rounded_field is the
+ * real divider value.
+ */
+ { 12000000, 80, 0 + 1 },
+ { 13000000, 443, 5 + 1 },
+ { 19200000, 50, 0 + 1 },
+ { 26000000, 443, 11 + 1 },
+ { 38400000, 25, 0 + 1 }
+ };
+
+ const struct omap3_dpll5_settings *d;
+ struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+ struct dpll_data *dd;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(precomputed); ++i) {
+ if (parent_rate == precomputed[i].rate)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(precomputed))
+ return false;
+
+ d = &precomputed[i];
+
+ /* Update the M, N and rounded rate values and program the DPLL. */
+ dd = clk->dpll_data;
+ dd->last_rounded_m = d->m;
+ dd->last_rounded_n = d->n;
+ dd->last_rounded_rate = div_u64((u64)parent_rate * d->m, d->n);
+ omap3_noncore_dpll_program(clk, 0);
+
+ return true;
+}
+
+/**
+ * omap3_dpll5_set_rate - set rate for omap3 dpll5
+ * @hw: clock to change
+ * @rate: target rate for clock
+ * @parent_rate: rate of the parent clock
+ *
+ * Set rate for the DPLL5 clock. Apply the sprz319 advisory 2.1 on OMAP36xx if
+ * the DPLL is used for USB host (detected through the requested rate).
+ */
+int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ if (rate == OMAP3_DPLL5_FREQ_FOR_USBHOST * 8) {
+ if (omap3_dpll5_apply_errata(hw, parent_rate))
+ return 0;
+ }
+
+ return omap3_noncore_dpll_set_rate(hw, rate, parent_rate);
+}
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 5c07ae05d69a..4d3ec92cbabf 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -28,6 +28,7 @@
#include "cpufreq-dt.h"

struct private_data {
+ struct opp_table *opp_table;
struct device *cpu_dev;
struct thermal_cooling_device *cdev;
const char *reg_name;
@@ -143,6 +144,7 @@ static int resources_available(void)
static int cpufreq_init(struct cpufreq_policy *policy)
{
struct cpufreq_frequency_table *freq_table;
+ struct opp_table *opp_table = NULL;
struct private_data *priv;
struct device *cpu_dev;
struct clk *cpu_clk;
@@ -186,8 +188,9 @@ static int cpufreq_init(struct cpufreq_policy *policy)
*/
name = find_supply_name(cpu_dev);
if (name) {
- ret = dev_pm_opp_set_regulator(cpu_dev, name);
- if (ret) {
+ opp_table = dev_pm_opp_set_regulator(cpu_dev, name);
+ if (IS_ERR(opp_table)) {
+ ret = PTR_ERR(opp_table);
dev_err(cpu_dev, "Failed to set regulator for cpu%d: %d\n",
policy->cpu, ret);
goto out_put_clk;
@@ -237,6 +240,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
}

priv->reg_name = name;
+ priv->opp_table = opp_table;

ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
if (ret) {
@@ -285,7 +289,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
out_free_opp:
dev_pm_opp_of_cpumask_remove_table(policy->cpus);
if (name)
- dev_pm_opp_put_regulator(cpu_dev);
+ dev_pm_opp_put_regulator(opp_table);
out_put_clk:
clk_put(cpu_clk);

@@ -300,7 +304,7 @@ static int cpufreq_exit(struct cpufreq_policy *policy)
dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);
dev_pm_opp_of_cpumask_remove_table(policy->related_cpus);
if (priv->reg_name)
- dev_pm_opp_put_regulator(priv->cpu_dev);
+ dev_pm_opp_put_regulator(priv->opp_table);

clk_put(policy->clk);
kfree(priv);
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 954a64c7757b..c310318b34dd 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -736,7 +736,9 @@ static int aead_set_sh_desc(struct crypto_aead *aead)

/* Will read cryptlen */
append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
- aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH | KEY_VLF |
+ FIFOLD_TYPE_MSG1OUT2 | FIFOLD_TYPE_LASTBOTH);
+ append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);

/* Write ICV */
append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index a2768835d394..0aedd0ebccec 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1503,12 +1503,15 @@ static int crypt_set_key(struct crypt_config *cc, char *key)
if (!cc->key_size && strcmp(key, "-"))
goto out;

+ /* clear the flag since following operations may invalidate previously valid key */
+ clear_bit(DM_CRYPT_KEY_VALID, &cc->flags);
+
if (cc->key_size && crypt_decode_key(cc->key, key, cc->key_size) < 0)
goto out;

- set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
-
r = crypt_setkey_allcpus(cc);
+ if (!r)
+ set_bit(DM_CRYPT_KEY_VALID, &cc->flags);

out:
/* Hex key string not needed after here, so wipe it. */
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 6a2e8dd44a1b..3643cba71351 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -200,11 +200,13 @@ static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)

if (!(fc->up_interval + fc->down_interval)) {
ti->error = "Total (up + down) interval is zero";
+ r = -EINVAL;
goto bad;
}

if (fc->up_interval + fc->down_interval < fc->up_interval) {
ti->error = "Interval overflow";
+ r = -EINVAL;
goto bad;
}

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 6d53810963f7..af2d79b52484 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -2994,6 +2994,9 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
}
}

+ /* Disable/enable discard support on raid set. */
+ configure_discard_support(rs);
+
mddev_unlock(&rs->md);
return 0;

@@ -3580,12 +3583,6 @@ static int raid_preresume(struct dm_target *ti)
if (test_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags))
rs_update_sbs(rs);

- /*
- * Disable/enable discard support on raid set after any
- * conversion, because devices can have been added
- */
- configure_discard_support(rs);
-
/* Load the bitmap from disk unless raid0 */
r = __load_dirty_region_bitmap(rs);
if (r)
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 1d0d2adc050a..31a89c8832c0 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -226,6 +226,9 @@ static void rq_end_stats(struct mapped_device *md, struct request *orig)
*/
static void rq_completed(struct mapped_device *md, int rw, bool run_queue)
{
+ struct request_queue *q = md->queue;
+ unsigned long flags;
+
atomic_dec(&md->pending[rw]);

/* nudge anyone waiting on suspend queue */
@@ -238,8 +241,11 @@ static void rq_completed(struct mapped_device *md, int rw, bool run_queue)
* back into ->request_fn() could deadlock attempting to grab the
* queue lock again.
*/
- if (!md->queue->mq_ops && run_queue)
- blk_run_queue_async(md->queue);
+ if (!q->mq_ops && run_queue) {
+ spin_lock_irqsave(q->queue_lock, flags);
+ blk_run_queue_async(q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+ }

/*
* dm_put() must be at the end of this function. See the comment above
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index c4b53b332607..5ac239d0f787 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -924,12 +924,6 @@ static int dm_table_determine_type(struct dm_table *t)

BUG_ON(!request_based); /* No targets in this table */

- if (list_empty(devices) && __table_type_request_based(live_md_type)) {
- /* inherit live MD type */
- t->type = live_md_type;
- return 0;
- }
-
/*
* The only way to establish DM_TYPE_MQ_REQUEST_BASED is by
* having a compatible target use dm_table_set_type.
@@ -948,6 +942,19 @@ static int dm_table_determine_type(struct dm_table *t)
return -EINVAL;
}

+ if (list_empty(devices)) {
+ int srcu_idx;
+ struct dm_table *live_table = dm_get_live_table(t->md, &srcu_idx);
+
+ /* inherit live table's type and all_blk_mq */
+ if (live_table) {
+ t->type = live_table->type;
+ t->all_blk_mq = live_table->all_blk_mq;
+ }
+ dm_put_live_table(t->md, srcu_idx);
+ return 0;
+ }
+
/* Non-request-stackable devices can't be used for request-based dm */
list_for_each_entry(dd, devices, list) {
struct request_queue *q = bdev_get_queue(dd->dm_dev->bdev);
@@ -974,6 +981,11 @@ static int dm_table_determine_type(struct dm_table *t)
t->all_blk_mq = true;
}

+ if (t->type == DM_TYPE_MQ_REQUEST_BASED && !t->all_blk_mq) {
+ DMERR("table load rejected: all devices are not blk-mq request-stackable");
+ return -EINVAL;
+ }
+
return 0;
}

diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 7e44005595c1..20557e2c60c6 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -775,17 +775,15 @@ int dm_sm_metadata_create(struct dm_space_map *sm,
memcpy(&smm->sm, &bootstrap_ops, sizeof(smm->sm));

r = sm_ll_new_metadata(&smm->ll, tm);
+ if (!r) {
+ if (nr_blocks > DM_SM_METADATA_MAX_BLOCKS)
+ nr_blocks = DM_SM_METADATA_MAX_BLOCKS;
+ r = sm_ll_extend(&smm->ll, nr_blocks);
+ }
+ memcpy(&smm->sm, &ops, sizeof(smm->sm));
if (r)
return r;

- if (nr_blocks > DM_SM_METADATA_MAX_BLOCKS)
- nr_blocks = DM_SM_METADATA_MAX_BLOCKS;
- r = sm_ll_extend(&smm->ll, nr_blocks);
- if (r)
- return r;
-
- memcpy(&smm->sm, &ops, sizeof(smm->sm));
-
/*
* Now we need to update the newly created data structures with the
* allocated blocks that they were built from.
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index af5e2dc4a3d5..011f88e5663e 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -271,7 +271,7 @@ static ssize_t nvmet_ns_device_path_store(struct config_item *item,

mutex_lock(&subsys->lock);
ret = -EBUSY;
- if (nvmet_ns_enabled(ns))
+ if (ns->enabled)
goto out_unlock;

kfree(ns->device_path);
@@ -307,7 +307,7 @@ static ssize_t nvmet_ns_device_nguid_store(struct config_item *item,
int ret = 0;

mutex_lock(&subsys->lock);
- if (nvmet_ns_enabled(ns)) {
+ if (ns->enabled) {
ret = -EBUSY;
goto out_unlock;
}
@@ -339,7 +339,7 @@ CONFIGFS_ATTR(nvmet_ns_, device_nguid);

static ssize_t nvmet_ns_enable_show(struct config_item *item, char *page)
{
- return sprintf(page, "%d\n", nvmet_ns_enabled(to_nvmet_ns(item)));
+ return sprintf(page, "%d\n", to_nvmet_ns(item)->enabled);
}

static ssize_t nvmet_ns_enable_store(struct config_item *item,
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index a21437a33adb..55ce769cecee 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -264,7 +264,7 @@ int nvmet_ns_enable(struct nvmet_ns *ns)
int ret = 0;

mutex_lock(&subsys->lock);
- if (!list_empty(&ns->dev_link))
+ if (ns->enabled)
goto out_unlock;

ns->bdev = blkdev_get_by_path(ns->device_path, FMODE_READ | FMODE_WRITE,
@@ -309,6 +309,7 @@ int nvmet_ns_enable(struct nvmet_ns *ns)
list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)
nvmet_add_async_event(ctrl, NVME_AER_TYPE_NOTICE, 0, 0);

+ ns->enabled = true;
ret = 0;
out_unlock:
mutex_unlock(&subsys->lock);
@@ -325,11 +326,11 @@ void nvmet_ns_disable(struct nvmet_ns *ns)
struct nvmet_ctrl *ctrl;

mutex_lock(&subsys->lock);
- if (list_empty(&ns->dev_link)) {
- mutex_unlock(&subsys->lock);
- return;
- }
- list_del_init(&ns->dev_link);
+ if (!ns->enabled)
+ goto out_unlock;
+
+ ns->enabled = false;
+ list_del_rcu(&ns->dev_link);
mutex_unlock(&subsys->lock);

/*
@@ -351,6 +352,7 @@ void nvmet_ns_disable(struct nvmet_ns *ns)

if (ns->bdev)
blkdev_put(ns->bdev, FMODE_WRITE|FMODE_READ);
+out_unlock:
mutex_unlock(&subsys->lock);
}

diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 76b6eedccaf9..7655a351320f 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -47,6 +47,7 @@ struct nvmet_ns {
loff_t size;
u8 nguid[16];

+ bool enabled;
struct nvmet_subsys *subsys;
const char *device_path;

@@ -61,11 +62,6 @@ static inline struct nvmet_ns *to_nvmet_ns(struct config_item *item)
return container_of(to_config_group(item), struct nvmet_ns, group);
}

-static inline bool nvmet_ns_enabled(struct nvmet_ns *ns)
-{
- return !list_empty_careful(&ns->dev_link);
-}
-
struct nvmet_cq {
u16 qid;
u16 size;
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index fada988512a1..c5ff13f22b24 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1719,6 +1719,7 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */
.driver_info = QUIRK_CONTROL_LINE_STATE, },
{ USB_DEVICE(0x2184, 0x001c) }, /* GW Instek AFG-2225 */
+ { USB_DEVICE(0x2184, 0x0036) }, /* GW Instek AFG-125 */
{ USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
},
/* Motorola H24 HSPA module: */
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index cbb146736f57..0d81436c94bd 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -101,6 +101,8 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);

static void hub_release(struct kref *kref);
static int usb_reset_and_verify_device(struct usb_device *udev);
+static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+ struct usb_port *port_dev);

static inline char *portspeed(struct usb_hub *hub, int portstatus)
{
@@ -899,82 +901,28 @@ static int hub_set_port_link_state(struct usb_hub *hub, int port1,
}

/*
- * If USB 3.0 ports are placed into the Disabled state, they will no longer
- * detect any device connects or disconnects. This is generally not what the
- * USB core wants, since it expects a disabled port to produce a port status
- * change event when a new device connects.
- *
- * Instead, set the link state to Disabled, wait for the link to settle into
- * that state, clear any change bits, and then put the port into the RxDetect
- * state.
+ * USB-3 does not have a similar link state as USB-2 that will avoid negotiating
+ * a connection with a plugged-in cable but will signal the host when the cable
+ * is unplugged. Disable remote wake and set link state to U3 for USB-3 devices
*/
-static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
-{
- int ret;
- int total_time;
- u16 portchange, portstatus;
-
- if (!hub_is_superspeed(hub->hdev))
- return -EINVAL;
-
- ret = hub_port_status(hub, port1, &portstatus, &portchange);
- if (ret < 0)
- return ret;
-
- /*
- * USB controller Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
- * Controller [1022:7814] will have spurious result making the following
- * usb 3.0 device hotplugging route to the 2.0 root hub and recognized
- * as high-speed device if we set the usb 3.0 port link state to
- * Disabled. Since it's already in USB_SS_PORT_LS_RX_DETECT state, we
- * check the state here to avoid the bug.
- */
- if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
- USB_SS_PORT_LS_RX_DETECT) {
- dev_dbg(&hub->ports[port1 - 1]->dev,
- "Not disabling port; link state is RxDetect\n");
- return ret;
- }
-
- ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
- if (ret)
- return ret;
-
- /* Wait for the link to enter the disabled state. */
- for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) {
- ret = hub_port_status(hub, port1, &portstatus, &portchange);
- if (ret < 0)
- return ret;
-
- if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
- USB_SS_PORT_LS_SS_DISABLED)
- break;
- if (total_time >= HUB_DEBOUNCE_TIMEOUT)
- break;
- msleep(HUB_DEBOUNCE_STEP);
- }
- if (total_time >= HUB_DEBOUNCE_TIMEOUT)
- dev_warn(&hub->ports[port1 - 1]->dev,
- "Could not disable after %d ms\n", total_time);
-
- return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT);
-}
-
static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
{
struct usb_port *port_dev = hub->ports[port1 - 1];
struct usb_device *hdev = hub->hdev;
int ret = 0;

- if (port_dev->child && set_state)
- usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
if (!hub->error) {
- if (hub_is_superspeed(hub->hdev))
- ret = hub_usb3_port_disable(hub, port1);
- else
+ if (hub_is_superspeed(hub->hdev)) {
+ hub_usb3_port_prepare_disable(hub, port_dev);
+ ret = hub_set_port_link_state(hub, port_dev->portnum,
+ USB_SS_PORT_LS_U3);
+ } else {
ret = usb_clear_port_feature(hdev, port1,
USB_PORT_FEAT_ENABLE);
+ }
}
+ if (port_dev->child && set_state)
+ usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
if (ret && ret != -ENODEV)
dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
return ret;
@@ -4140,6 +4088,26 @@ void usb_unlocked_enable_lpm(struct usb_device *udev)
}
EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);

+/* usb3 devices use U3 for disabled, make sure remote wakeup is disabled */
+static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+ struct usb_port *port_dev)
+{
+ struct usb_device *udev = port_dev->child;
+ int ret;
+
+ if (udev && udev->port_is_suspended && udev->do_remote_wakeup) {
+ ret = hub_set_port_link_state(hub, port_dev->portnum,
+ USB_SS_PORT_LS_U0);
+ if (!ret) {
+ msleep(USB_RESUME_TIMEOUT);
+ ret = usb_disable_remote_wakeup(udev);
+ }
+ if (ret)
+ dev_warn(&udev->dev,
+ "Port disable: can't disable remote wake\n");
+ udev->do_remote_wakeup = 0;
+ }
+}

#else /* CONFIG_PM */

@@ -4147,6 +4115,9 @@ EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
#define hub_resume NULL
#define hub_reset_resume NULL

+static inline void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+ struct usb_port *port_dev) { }
+
int usb_disable_lpm(struct usb_device *udev)
{
return 0;
diff --git a/drivers/usb/core/ledtrig-usbport.c b/drivers/usb/core/ledtrig-usbport.c
index 3ed5162677ad..1713248ab15a 100644
--- a/drivers/usb/core/ledtrig-usbport.c
+++ b/drivers/usb/core/ledtrig-usbport.c
@@ -74,8 +74,7 @@ static void usbport_trig_update_count(struct usbport_trig_data *usbport_data)

usbport_data->count = 0;
usb_for_each_dev(usbport_data, usbport_trig_usb_dev_check);
- led_cdev->brightness_set(led_cdev,
- usbport_data->count ? LED_FULL : LED_OFF);
+ led_set_brightness(led_cdev, usbport_data->count ? LED_FULL : LED_OFF);
}

/***************************************
@@ -228,12 +227,12 @@ static int usbport_trig_notify(struct notifier_block *nb, unsigned long action,
case USB_DEVICE_ADD:
usbport_trig_add_usb_dev_ports(usb_dev, usbport_data);
if (observed && usbport_data->count++ == 0)
- led_cdev->brightness_set(led_cdev, LED_FULL);
+ led_set_brightness(led_cdev, LED_FULL);
return NOTIFY_OK;
case USB_DEVICE_REMOVE:
usbport_trig_remove_usb_dev_ports(usbport_data, usb_dev);
if (observed && --usbport_data->count == 0)
- led_cdev->brightness_set(led_cdev, LED_OFF);
+ led_set_brightness(led_cdev, LED_OFF);
return NOTIFY_OK;
}

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 1dfa56a5f1c5..b3687e223e00 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -771,6 +771,9 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
unsigned length, unsigned chain, unsigned node)
{
struct dwc3_trb *trb;
+ struct dwc3 *dwc = dep->dwc;
+ struct usb_gadget *gadget = &dwc->gadget;
+ enum usb_device_speed speed = gadget->speed;

dwc3_trace(trace_dwc3_gadget, "%s: req %p dma %08llx length %d%s",
dep->name, req, (unsigned long long) dma,
@@ -798,10 +801,16 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
break;

case USB_ENDPOINT_XFER_ISOC:
- if (!node)
+ if (!node) {
trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS_FIRST;
- else
+
+ if (speed == USB_SPEED_HIGH) {
+ struct usb_ep *ep = &dep->endpoint;
+ trb->size |= DWC3_TRB_SIZE_PCM1(ep->mult - 1);
+ }
+ } else {
trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS;
+ }

/* always enable Interrupt on Missed ISOC */
trb->ctrl |= DWC3_TRB_CTRL_ISP_IMI;
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 32176f779861..e38b21087d26 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -197,11 +197,16 @@ int config_ep_by_speed(struct usb_gadget *g,

ep_found:
/* commit results */
- _ep->maxpacket = usb_endpoint_maxp(chosen_desc);
+ _ep->maxpacket = usb_endpoint_maxp(chosen_desc) & 0x7ff;
_ep->desc = chosen_desc;
_ep->comp_desc = NULL;
_ep->maxburst = 0;
- _ep->mult = 0;
+ _ep->mult = 1;
+
+ if (g->speed == USB_SPEED_HIGH && (usb_endpoint_xfer_isoc(_ep->desc) ||
+ usb_endpoint_xfer_int(_ep->desc)))
+ _ep->mult = usb_endpoint_maxp(_ep->desc) & 0x7ff;
+
if (!want_comp_desc)
return 0;

@@ -218,7 +223,7 @@ int config_ep_by_speed(struct usb_gadget *g,
switch (usb_endpoint_type(_ep->desc)) {
case USB_ENDPOINT_XFER_ISOC:
/* mult: bits 1:0 of bmAttributes */
- _ep->mult = comp_desc->bmAttributes & 0x3;
+ _ep->mult = (comp_desc->bmAttributes & 0x3) + 1;
case USB_ENDPOINT_XFER_BULK:
case USB_ENDPOINT_XFER_INT:
_ep->maxburst = comp_desc->bMaxBurst + 1;
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index cd214ec8a601..969cfe741380 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -1067,13 +1067,13 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
agdev->out_ep = usb_ep_autoconfig(gadget, &fs_epout_desc);
if (!agdev->out_ep) {
dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
- goto err;
+ return ret;
}

agdev->in_ep = usb_ep_autoconfig(gadget, &fs_epin_desc);
if (!agdev->in_ep) {
dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
- goto err;
+ return ret;
}

uac2->p_prm.uac2 = uac2;
@@ -1091,7 +1091,7 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
ret = usb_assign_descriptors(fn, fs_audio_desc, hs_audio_desc, NULL,
NULL);
if (ret)
- goto err;
+ return ret;

prm = &agdev->uac2.c_prm;
prm->max_psize = hs_epout_desc.wMaxPacketSize;
@@ -1106,19 +1106,19 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL);
if (!prm->rbuf) {
prm->max_psize = 0;
- goto err_free_descs;
+ goto err;
}

ret = alsa_uac2_init(agdev);
if (ret)
- goto err_free_descs;
+ goto err;
return 0;

-err_free_descs:
- usb_free_all_descriptors(fn);
err:
kfree(agdev->uac2.p_prm.rbuf);
kfree(agdev->uac2.c_prm.rbuf);
+err_free_descs:
+ usb_free_all_descriptors(fn);
return -EINVAL;
}

diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index 3d0d5d94a62f..0f01c04d7cbd 100644
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -243,7 +243,7 @@ uvc_video_alloc_requests(struct uvc_video *video)

req_size = video->ep->maxpacket
* max_t(unsigned int, video->ep->maxburst, 1)
- * (video->ep->mult + 1);
+ * (video->ep->mult);

for (i = 0; i < UVC_NUM_REQUESTS; ++i) {
video->req_buffer[i] = kmalloc(req_size, GFP_KERNEL);
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c
index 940304c33224..02260cfdedb1 100644
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -129,6 +129,10 @@ static int uhci_pci_init(struct usb_hcd *hcd)
if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP)
uhci->wait_for_hp = 1;

+ /* Intel controllers use non-PME wakeup signalling */
+ if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL)
+ device_set_run_wake(uhci_dev(uhci), 1);
+
/* Set up pointers to PCI-specific functions */
uhci->reset_hc = uhci_pci_reset_hc;
uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index fc5d3a791e08..6f29bfadbe33 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -296,7 +296,7 @@ static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
rc = usb_serial_generic_open(tty, port);
if (rc) {
retval = rc;
- goto exit;
+ goto err_free_cfg;
}

rc = usb_control_msg(port->serial->dev,
@@ -315,17 +315,32 @@ static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
dev_dbg(&port->dev, "%s - enabled reading\n", __func__);

rc = klsi_105_get_line_state(port, &line_state);
- if (rc >= 0) {
- spin_lock_irqsave(&priv->lock, flags);
- priv->line_state = line_state;
- spin_unlock_irqrestore(&priv->lock, flags);
- dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__, line_state);
- retval = 0;
- } else
+ if (rc < 0) {
retval = rc;
+ goto err_disable_read;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->line_state = line_state;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__,
+ line_state);
+
+ return 0;

-exit:
+err_disable_read:
+ usb_control_msg(port->serial->dev,
+ usb_sndctrlpipe(port->serial->dev, 0),
+ KL5KUSB105A_SIO_CONFIGURE,
+ USB_TYPE_VENDOR | USB_DIR_OUT,
+ KL5KUSB105A_SIO_CONFIGURE_READ_OFF,
+ 0, /* index */
+ NULL, 0,
+ KLSI_TIMEOUT);
+ usb_serial_generic_close(port);
+err_free_cfg:
kfree(cfg);
+
return retval;
}

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 9894e341c6ac..7ce31a4c7e7f 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -268,6 +268,8 @@ static void option_instat_callback(struct urb *urb);
#define TELIT_PRODUCT_CC864_SINGLE 0x1006
#define TELIT_PRODUCT_DE910_DUAL 0x1010
#define TELIT_PRODUCT_UE910_V2 0x1012
+#define TELIT_PRODUCT_LE922_USBCFG1 0x1040
+#define TELIT_PRODUCT_LE922_USBCFG2 0x1041
#define TELIT_PRODUCT_LE922_USBCFG0 0x1042
#define TELIT_PRODUCT_LE922_USBCFG3 0x1043
#define TELIT_PRODUCT_LE922_USBCFG5 0x1045
@@ -1210,6 +1212,10 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG1),
+ .driver_info = (kernel_ulong_t)&telit_le910_blacklist },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG2),
+ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
@@ -1989,6 +1995,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x00, 0x00) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x02, 0x01) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) }, /* D-Link DWM-158 */
{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff), /* D-Link DWM-221 B1 */
.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */
diff --git a/drivers/usb/usbip/vudc_transfer.c b/drivers/usb/usbip/vudc_transfer.c
index aba6bd478045..bc0296d937d0 100644
--- a/drivers/usb/usbip/vudc_transfer.c
+++ b/drivers/usb/usbip/vudc_transfer.c
@@ -339,6 +339,8 @@ static void v_timer(unsigned long _vudc)
total = timer->frame_limit;
}

+ /* We have to clear ep0 flags separately as it's not on the list */
+ udc->ep[0].already_seen = 0;
list_for_each_entry(_ep, &udc->gadget.ep_list, ep_list) {
ep = to_vep(_ep);
ep->already_seen = 0;
diff --git a/drivers/watchdog/mei_wdt.c b/drivers/watchdog/mei_wdt.c
index 630bd189f167..2a9d5cdedea2 100644
--- a/drivers/watchdog/mei_wdt.c
+++ b/drivers/watchdog/mei_wdt.c
@@ -389,6 +389,8 @@ static int mei_wdt_register(struct mei_wdt *wdt)
wdt->wdd.max_timeout = MEI_WDT_MAX_TIMEOUT;

watchdog_set_drvdata(&wdt->wdd, wdt);
+ watchdog_stop_on_reboot(&wdt->wdd);
+
ret = watchdog_register_device(&wdt->wdd);
if (ret) {
dev_err(dev, "unable to register watchdog device = %d.\n", ret);
diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c
index 5796b5d1b3f2..4f47b5e90956 100644
--- a/drivers/watchdog/qcom-wdt.c
+++ b/drivers/watchdog/qcom-wdt.c
@@ -209,7 +209,7 @@ static int qcom_wdt_probe(struct platform_device *pdev)
wdt->wdd.parent = &pdev->dev;
wdt->layout = regs;

- if (readl(wdt->base + WDT_STS) & 1)
+ if (readl(wdt_addr(wdt, WDT_STS)) & 1)
wdt->wdd.bootstatus = WDIOF_CARDRESET;

/*
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index bb952121ea94..2ef2b61b69df 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -1007,7 +1007,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)

vma->vm_ops = &gntdev_vmops;

- vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_IO;
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_MIXEDMAP;

if (use_ptemod)
vma->vm_flags |= VM_DONTCOPY;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 05b553368bb4..9166b9f63d33 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -832,7 +832,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
return true; /* already a holder */
else if (bdev->bd_holder != NULL)
return false; /* held by someone else */
- else if (bdev->bd_contains == bdev)
+ else if (whole == bdev)
return true; /* is a whole device which isn't held */

else if (whole->bd_holder == bd_may_claim)
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index e0f071f6b5a7..63d197724519 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -86,6 +86,20 @@ btrfs_work_owner(struct btrfs_work *work)
return work->wq->fs_info;
}

+bool btrfs_workqueue_normal_congested(struct btrfs_workqueue *wq)
+{
+ /*
+ * We could compare wq->normal->pending with num_online_cpus()
+ * to support "thresh == NO_THRESHOLD" case, but it requires
+ * moving up atomic_inc/dec in thresh_queue/exec_hook. Let's
+ * postpone it until someone needs the support of that case.
+ */
+ if (wq->normal->thresh == NO_THRESHOLD)
+ return false;
+
+ return atomic_read(&wq->normal->pending) > wq->normal->thresh * 2;
+}
+
BTRFS_WORK_HELPER(worker_helper);
BTRFS_WORK_HELPER(delalloc_helper);
BTRFS_WORK_HELPER(flush_delalloc_helper);
diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h
index 8e52484cd461..1f9597355c9d 100644
--- a/fs/btrfs/async-thread.h
+++ b/fs/btrfs/async-thread.h
@@ -84,4 +84,5 @@ void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max);
void btrfs_set_work_high_priority(struct btrfs_work *work);
struct btrfs_fs_info *btrfs_work_owner(struct btrfs_work *work);
struct btrfs_fs_info *btrfs_workqueue_owner(struct __btrfs_workqueue *wq);
+bool btrfs_workqueue_normal_congested(struct btrfs_workqueue *wq);
#endif
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0b8ce2b9f7d0..86245b884fce 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2210,6 +2210,8 @@ btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
cpu->target = le64_to_cpu(disk->target);
cpu->flags = le64_to_cpu(disk->flags);
cpu->limit = le64_to_cpu(disk->limit);
+ cpu->stripes_min = le32_to_cpu(disk->stripes_min);
+ cpu->stripes_max = le32_to_cpu(disk->stripes_max);
}

static inline void
@@ -2228,6 +2230,8 @@ btrfs_cpu_balance_args_to_disk(struct btrfs_disk_balance_args *disk,
disk->target = cpu_to_le64(cpu->target);
disk->flags = cpu_to_le64(cpu->flags);
disk->limit = cpu_to_le64(cpu->limit);
+ disk->stripes_min = cpu_to_le32(cpu->stripes_min);
+ disk->stripes_max = cpu_to_le32(cpu->stripes_max);
}

/* struct btrfs_super_block */
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 0fcf5f25d524..4d8f8a8c9c90 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1353,7 +1353,8 @@ static void btrfs_async_run_delayed_root(struct btrfs_work *work)
total_done++;

btrfs_release_prepared_delayed_node(delayed_node);
- if (async_work->nr == 0 || total_done < async_work->nr)
+ if ((async_work->nr == 0 && total_done < BTRFS_DELAYED_WRITEBACK) ||
+ total_done < async_work->nr)
goto again;

free_path:
@@ -1369,7 +1370,8 @@ static int btrfs_wq_run_delayed_node(struct btrfs_delayed_root *delayed_root,
{
struct btrfs_async_delayed_work *async_work;

- if (atomic_read(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND)
+ if (atomic_read(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND ||
+ btrfs_workqueue_normal_congested(fs_info->delayed_workers))
return 0;

async_work = kmalloc(sizeof(*async_work), GFP_NOFS);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 3a57f99d96aa..1cd325765aaa 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -559,7 +559,15 @@ static noinline int check_leaf(struct btrfs_root *root,
u32 nritems = btrfs_header_nritems(leaf);
int slot;

- if (nritems == 0) {
+ /*
+ * Extent buffers from a relocation tree have a owner field that
+ * corresponds to the subvolume tree they are based on. So just from an
+ * extent buffer alone we can not find out what is the id of the
+ * corresponding subvolume tree, so we can not figure out if the extent
+ * buffer corresponds to the root of the relocation tree or not. So skip
+ * this check for relocation trees.
+ */
+ if (nritems == 0 && !btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_RELOC)) {
struct btrfs_root *check_root;

key.objectid = btrfs_header_owner(leaf);
@@ -572,17 +580,24 @@ static noinline int check_leaf(struct btrfs_root *root,
* open_ctree() some roots has not yet been set up.
*/
if (!IS_ERR_OR_NULL(check_root)) {
+ struct extent_buffer *eb;
+
+ eb = btrfs_root_node(check_root);
/* if leaf is the root, then it's fine */
- if (leaf->start !=
- btrfs_root_bytenr(&check_root->root_item)) {
+ if (leaf != eb) {
CORRUPT("non-root leaf's nritems is 0",
- leaf, root, 0);
+ leaf, check_root, 0);
+ free_extent_buffer(eb);
return -EIO;
}
+ free_extent_buffer(eb);
}
return 0;
}

+ if (nritems == 0)
+ return 0;
+
/* Check the 0 item */
if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) !=
BTRFS_LEAF_DATA_SIZE(root)) {
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 11f4fffe503e..dfd99867ff4d 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2335,10 +2335,6 @@ static void btrfs_qgroup_rescan_worker(struct btrfs_work *work)
int err = -ENOMEM;
int ret = 0;

- mutex_lock(&fs_info->qgroup_rescan_lock);
- fs_info->qgroup_rescan_running = true;
- mutex_unlock(&fs_info->qgroup_rescan_lock);
-
path = btrfs_alloc_path();
if (!path)
goto out;
@@ -2449,6 +2445,7 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
sizeof(fs_info->qgroup_rescan_progress));
fs_info->qgroup_rescan_progress.objectid = progress_objectid;
init_completion(&fs_info->qgroup_rescan_completion);
+ fs_info->qgroup_rescan_running = true;

spin_unlock(&fs_info->qgroup_lock);
mutex_unlock(&fs_info->qgroup_rescan_lock);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index c4af0cdb783d..2cf5e142675e 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1395,14 +1395,23 @@ static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans,
root_key.offset = objectid;

if (root->root_key.objectid == objectid) {
+ u64 commit_root_gen;
+
/* called by btrfs_init_reloc_root */
ret = btrfs_copy_root(trans, root, root->commit_root, &eb,
BTRFS_TREE_RELOC_OBJECTID);
BUG_ON(ret);
-
last_snap = btrfs_root_last_snapshot(&root->root_item);
- btrfs_set_root_last_snapshot(&root->root_item,
- trans->transid - 1);
+ /*
+ * Set the last_snapshot field to the generation of the commit
+ * root - like this ctree.c:btrfs_block_can_be_shared() behaves
+ * correctly (returns true) when the relocation root is created
+ * either inside the critical section of a transaction commit
+ * (through transaction.c:qgroup_account_snapshot()) and when
+ * it's created before the transaction commit is started.
+ */
+ commit_root_gen = btrfs_header_generation(root->commit_root);
+ btrfs_set_root_last_snapshot(&root->root_item, commit_root_gen);
} else {
/*
* called by btrfs_reloc_post_snapshot_hook.
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 3d33c4e41e5f..b89004513c09 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1940,12 +1940,11 @@ static noinline int find_dir_range(struct btrfs_root *root,
next:
/* check the next slot in the tree to see if it is a valid item */
nritems = btrfs_header_nritems(path->nodes[0]);
+ path->slots[0]++;
if (path->slots[0] >= nritems) {
ret = btrfs_next_leaf(root, path);
if (ret)
goto out;
- } else {
- path->slots[0]++;
}

btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]);
@@ -5205,6 +5204,7 @@ static int log_new_dir_dentries(struct btrfs_trans_handle *trans,
if (di_key.type == BTRFS_ROOT_ITEM_KEY)
continue;

+ btrfs_release_path(path);
di_inode = btrfs_iget(root->fs_info->sb, &di_key,
root, NULL);
if (IS_ERR(di_inode)) {
@@ -5214,13 +5214,12 @@ static int log_new_dir_dentries(struct btrfs_trans_handle *trans,

if (btrfs_inode_in_log(di_inode, trans->transid)) {
iput(di_inode);
- continue;
+ break;
}

ctx->log_new_dentries = false;
if (type == BTRFS_FT_DIR || type == BTRFS_FT_SYMLINK)
log_mode = LOG_INODE_ALL;
- btrfs_release_path(path);
ret = btrfs_log_inode(trans, root, di_inode,
log_mode, 0, LLONG_MAX, ctx);
if (!ret &&
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 1f17f6bd7a60..203287f86525 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -646,6 +646,8 @@ struct TCP_Server_Info {
unsigned int max_read;
unsigned int max_write;
__u8 preauth_hash[512];
+ struct delayed_work reconnect; /* reconnect workqueue job */
+ struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
#endif /* CONFIG_CIFS_SMB2 */
unsigned long echo_interval;
};
@@ -849,6 +851,7 @@ cap_unix(struct cifs_ses *ses)
struct cifs_tcon {
struct list_head tcon_list;
int tc_count;
+ struct list_head rlist; /* reconnect list */
struct list_head openFileList;
spinlock_t open_file_lock; /* protects list above */
struct cifs_ses *ses; /* pointer to session associated with */
@@ -922,6 +925,7 @@ struct cifs_tcon {
bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */
bool broken_sparse_sup; /* if server or share does not support sparse */
bool need_reconnect:1; /* connection reset, tid now invalid */
+ bool need_reopen_files:1; /* need to reopen tcon file handles */
bool use_resilient:1; /* use resilient instead of durable handles */
bool use_persistent:1; /* use persistent instead of durable handles */
#ifdef CONFIG_CIFS_SMB2
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index ced0e42ce460..cd8025a249bb 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -206,6 +206,9 @@ extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
struct tcon_link *tlink,
struct cifs_pending_open *open);
extern void cifs_del_pending_open(struct cifs_pending_open *open);
+extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
+ int from_reconnect);
+extern void cifs_put_tcon(struct cifs_tcon *tcon);

#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
extern void cifs_dfs_release_automount_timer(void);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 4547aeddd12b..893be0722643 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -52,6 +52,9 @@
#include "nterr.h"
#include "rfc1002pdu.h"
#include "fscache.h"
+#ifdef CONFIG_CIFS_SMB2
+#include "smb2proto.h"
+#endif

#define CIFS_PORT 445
#define RFC1001_PORT 139
@@ -2100,8 +2103,8 @@ cifs_find_tcp_session(struct smb_vol *vol)
return NULL;
}

-static void
-cifs_put_tcp_session(struct TCP_Server_Info *server)
+void
+cifs_put_tcp_session(struct TCP_Server_Info *server, int from_reconnect)
{
struct task_struct *task;

@@ -2118,6 +2121,19 @@ cifs_put_tcp_session(struct TCP_Server_Info *server)

cancel_delayed_work_sync(&server->echo);

+#ifdef CONFIG_CIFS_SMB2
+ if (from_reconnect)
+ /*
+ * Avoid deadlock here: reconnect work calls
+ * cifs_put_tcp_session() at its end. Need to be sure
+ * that reconnect work does nothing with server pointer after
+ * that step.
+ */
+ cancel_delayed_work(&server->reconnect);
+ else
+ cancel_delayed_work_sync(&server->reconnect);
+#endif
+
spin_lock(&GlobalMid_Lock);
server->tcpStatus = CifsExiting;
spin_unlock(&GlobalMid_Lock);
@@ -2182,6 +2198,10 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
INIT_LIST_HEAD(&tcp_ses->tcp_ses_list);
INIT_LIST_HEAD(&tcp_ses->smb_ses_list);
INIT_DELAYED_WORK(&tcp_ses->echo, cifs_echo_request);
+#ifdef CONFIG_CIFS_SMB2
+ INIT_DELAYED_WORK(&tcp_ses->reconnect, smb2_reconnect_server);
+ mutex_init(&tcp_ses->reconnect_mutex);
+#endif
memcpy(&tcp_ses->srcaddr, &volume_info->srcaddr,
sizeof(tcp_ses->srcaddr));
memcpy(&tcp_ses->dstaddr, &volume_info->dstaddr,
@@ -2340,7 +2360,7 @@ cifs_put_smb_ses(struct cifs_ses *ses)
spin_unlock(&cifs_tcp_ses_lock);

sesInfoFree(ses);
- cifs_put_tcp_session(server);
+ cifs_put_tcp_session(server, 0);
}

#ifdef CONFIG_KEYS
@@ -2514,7 +2534,7 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
mutex_unlock(&ses->session_mutex);

/* existing SMB ses has a server reference already */
- cifs_put_tcp_session(server);
+ cifs_put_tcp_session(server, 0);
free_xid(xid);
return ses;
}
@@ -2604,7 +2624,7 @@ cifs_find_tcon(struct cifs_ses *ses, const char *unc)
return NULL;
}

-static void
+void
cifs_put_tcon(struct cifs_tcon *tcon)
{
unsigned int xid;
@@ -3792,7 +3812,7 @@ cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info)
else if (ses)
cifs_put_smb_ses(ses);
else
- cifs_put_tcp_session(server);
+ cifs_put_tcp_session(server, 0);
bdi_destroy(&cifs_sb->bdi);
}

@@ -4103,7 +4123,7 @@ cifs_construct_tcon(struct cifs_sb_info *cifs_sb, kuid_t fsuid)
ses = cifs_get_smb_ses(master_tcon->ses->server, vol_info);
if (IS_ERR(ses)) {
tcon = (struct cifs_tcon *)ses;
- cifs_put_tcp_session(master_tcon->ses->server);
+ cifs_put_tcp_session(master_tcon->ses->server, 0);
goto out;
}

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7f5f6176c6f1..18a1e1d6671f 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -777,6 +777,11 @@ cifs_reopen_persistent_handles(struct cifs_tcon *tcon)
struct list_head *tmp1;
struct list_head tmp_list;

+ if (!tcon->use_persistent || !tcon->need_reopen_files)
+ return;
+
+ tcon->need_reopen_files = false;
+
cifs_dbg(FYI, "Reopen persistent handles");
INIT_LIST_HEAD(&tmp_list);

@@ -793,7 +798,8 @@ cifs_reopen_persistent_handles(struct cifs_tcon *tcon)

list_for_each_safe(tmp, tmp1, &tmp_list) {
open_file = list_entry(tmp, struct cifsFileInfo, rlist);
- cifs_reopen_file(open_file, false /* do not flush */);
+ if (cifs_reopen_file(open_file, false /* do not flush */))
+ tcon->need_reopen_files = true;
list_del_init(&open_file->rlist);
cifsFileInfo_put(open_file);
}
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 9f51b81119f2..001528781b6b 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -189,7 +189,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
xid = get_xid();

cifs_sb = CIFS_SB(inode->i_sb);
- cifs_dbg(VFS, "cifs ioctl 0x%x\n", command);
+ cifs_dbg(FYI, "cifs ioctl 0x%x\n", command);
switch (command) {
case FS_IOC_GETFLAGS:
if (pSMBFile == NULL)
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index f9e766f464be..b2aff0c6f22c 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -260,7 +260,7 @@ smb2_push_mandatory_locks(struct cifsFileInfo *cfile)
* and check it for zero before using.
*/
max_buf = tlink_tcon(cfile->tlink)->ses->server->maxBuf;
- if (!max_buf) {
+ if (max_buf < sizeof(struct smb2_lock_element)) {
free_xid(xid);
return -EINVAL;
}
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 5ca5ea4668a1..87457227812c 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -250,16 +250,19 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
}

cifs_mark_open_files_invalid(tcon);
+ if (tcon->use_persistent)
+ tcon->need_reopen_files = true;

rc = SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nls_codepage);
mutex_unlock(&tcon->ses->session_mutex);

- if (tcon->use_persistent)
- cifs_reopen_persistent_handles(tcon);
-
cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
if (rc)
goto out;
+
+ if (smb2_command != SMB2_INTERNAL_CMD)
+ queue_delayed_work(cifsiod_wq, &server->reconnect, 0);
+
atomic_inc(&tconInfoReconnectCount);
out:
/*
@@ -280,7 +283,7 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
case SMB2_CHANGE_NOTIFY:
case SMB2_QUERY_INFO:
case SMB2_SET_INFO:
- return -EAGAIN;
+ rc = -EAGAIN;
}
unload_nls(nls_codepage);
return rc;
@@ -1972,6 +1975,55 @@ smb2_echo_callback(struct mid_q_entry *mid)
add_credits(server, credits_received, CIFS_ECHO_OP);
}

+void smb2_reconnect_server(struct work_struct *work)
+{
+ struct TCP_Server_Info *server = container_of(work,
+ struct TCP_Server_Info, reconnect.work);
+ struct cifs_ses *ses;
+ struct cifs_tcon *tcon, *tcon2;
+ struct list_head tmp_list;
+ int tcon_exist = false;
+
+ /* Prevent simultaneous reconnects that can corrupt tcon->rlist list */
+ mutex_lock(&server->reconnect_mutex);
+
+ INIT_LIST_HEAD(&tmp_list);
+ cifs_dbg(FYI, "Need negotiate, reconnecting tcons\n");
+
+ spin_lock(&cifs_tcp_ses_lock);
+ list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+ list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
+ if (tcon->need_reconnect || tcon->need_reopen_files) {
+ tcon->tc_count++;
+ list_add_tail(&tcon->rlist, &tmp_list);
+ tcon_exist = true;
+ }
+ }
+ }
+ /*
+ * Get the reference to server struct to be sure that the last call of
+ * cifs_put_tcon() in the loop below won't release the server pointer.
+ */
+ if (tcon_exist)
+ server->srv_count++;
+
+ spin_unlock(&cifs_tcp_ses_lock);
+
+ list_for_each_entry_safe(tcon, tcon2, &tmp_list, rlist) {
+ if (!smb2_reconnect(SMB2_INTERNAL_CMD, tcon))
+ cifs_reopen_persistent_handles(tcon);
+ list_del_init(&tcon->rlist);
+ cifs_put_tcon(tcon);
+ }
+
+ cifs_dbg(FYI, "Reconnecting tcons finished\n");
+ mutex_unlock(&server->reconnect_mutex);
+
+ /* now we can safely release srv struct */
+ if (tcon_exist)
+ cifs_put_tcp_session(server, 1);
+}
+
int
SMB2_echo(struct TCP_Server_Info *server)
{
@@ -1984,32 +2036,11 @@ SMB2_echo(struct TCP_Server_Info *server)
cifs_dbg(FYI, "In echo request\n");

if (server->tcpStatus == CifsNeedNegotiate) {
- struct list_head *tmp, *tmp2;
- struct cifs_ses *ses;
- struct cifs_tcon *tcon;
-
- cifs_dbg(FYI, "Need negotiate, reconnecting tcons\n");
- spin_lock(&cifs_tcp_ses_lock);
- list_for_each(tmp, &server->smb_ses_list) {
- ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
- list_for_each(tmp2, &ses->tcon_list) {
- tcon = list_entry(tmp2, struct cifs_tcon,
- tcon_list);
- /* add check for persistent handle reconnect */
- if (tcon && tcon->need_reconnect) {
- spin_unlock(&cifs_tcp_ses_lock);
- rc = smb2_reconnect(SMB2_ECHO, tcon);
- spin_lock(&cifs_tcp_ses_lock);
- }
- }
- }
- spin_unlock(&cifs_tcp_ses_lock);
+ /* No need to send echo on newly established connections */
+ queue_delayed_work(cifsiod_wq, &server->reconnect, 0);
+ return rc;
}

- /* if no session, renegotiate failed above */
- if (server->tcpStatus == CifsNeedNegotiate)
- return -EIO;
-
rc = small_smb2_init(SMB2_ECHO, NULL, (void **)&req);
if (rc)
return rc;
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index fd3709e8de33..dc0d141f33e2 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -80,6 +80,8 @@
#define SMB2_SET_INFO cpu_to_le16(SMB2_SET_INFO_HE)
#define SMB2_OPLOCK_BREAK cpu_to_le16(SMB2_OPLOCK_BREAK_HE)

+#define SMB2_INTERNAL_CMD cpu_to_le16(0xFFFF)
+
#define NUMBER_OF_SMB2_COMMANDS 0x0013

/* BB FIXME - analyze following length BB */
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index eb2cde2f64ba..f2d511a6971b 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -96,6 +96,7 @@ extern int smb2_open_file(const unsigned int xid,
extern int smb2_unlock_range(struct cifsFileInfo *cfile,
struct file_lock *flock, const unsigned int xid);
extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile);
+extern void smb2_reconnect_server(struct work_struct *work);

/*
* SMB2 Worker functions - most of protocol specific implementation details
diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
index 699b7868108f..c12bffefa3c9 100644
--- a/fs/cifs/smbencrypt.c
+++ b/fs/cifs/smbencrypt.c
@@ -23,7 +23,7 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

-#include <crypto/skcipher.h>
+#include <linux/crypto.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/fs.h>
@@ -69,46 +69,22 @@ str_to_key(unsigned char *str, unsigned char *key)
static int
smbhash(unsigned char *out, const unsigned char *in, unsigned char *key)
{
- int rc;
unsigned char key2[8];
- struct crypto_skcipher *tfm_des;
- struct scatterlist sgin, sgout;
- struct skcipher_request *req;
+ struct crypto_cipher *tfm_des;

str_to_key(key, key2);

- tfm_des = crypto_alloc_skcipher("ecb(des)", 0, CRYPTO_ALG_ASYNC);
+ tfm_des = crypto_alloc_cipher("des", 0, 0);
if (IS_ERR(tfm_des)) {
- rc = PTR_ERR(tfm_des);
- cifs_dbg(VFS, "could not allocate des crypto API\n");
- goto smbhash_err;
- }
-
- req = skcipher_request_alloc(tfm_des, GFP_KERNEL);
- if (!req) {
- rc = -ENOMEM;
cifs_dbg(VFS, "could not allocate des crypto API\n");
- goto smbhash_free_skcipher;
+ return PTR_ERR(tfm_des);
}

- crypto_skcipher_setkey(tfm_des, key2, 8);
-
- sg_init_one(&sgin, in, 8);
- sg_init_one(&sgout, out, 8);
+ crypto_cipher_setkey(tfm_des, key2, 8);
+ crypto_cipher_encrypt_one(tfm_des, out, in);
+ crypto_free_cipher(tfm_des);

- skcipher_request_set_callback(req, 0, NULL, NULL);
- skcipher_request_set_crypt(req, &sgin, &sgout, 8, NULL);
-
- rc = crypto_skcipher_encrypt(req);
- if (rc)
- cifs_dbg(VFS, "could not encrypt crypt key rc: %d\n", rc);
-
- skcipher_request_free(req);
-
-smbhash_free_skcipher:
- crypto_free_skcipher(tfm_des);
-smbhash_err:
- return rc;
+ return 0;
}

static int
diff --git a/fs/exec.c b/fs/exec.c
index 4e497b9ee71e..67e86571685a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -19,7 +19,7 @@
* current->executable is only used by the procfs. This allows a dispatch
* table to check for several different types of binary formats. We keep
* trying until we recognize the file or we run out of supported binary
- * formats.
+ * formats.
*/

#include <linux/slab.h>
@@ -1266,6 +1266,13 @@ int flush_old_exec(struct linux_binprm * bprm)
flush_thread();
current->personality &= ~bprm->per_clear;

+ /*
+ * We have to apply CLOEXEC before we change whether the process is
+ * dumpable (in setup_new_exec) to avoid a race with a process in userspace
+ * trying to access the should-be-closed file descriptors of a process
+ * undergoing exec(2).
+ */
+ do_close_on_exec(current->files);
return 0;

out:
@@ -1275,8 +1282,22 @@ EXPORT_SYMBOL(flush_old_exec);

void would_dump(struct linux_binprm *bprm, struct file *file)
{
- if (inode_permission(file_inode(file), MAY_READ) < 0)
+ struct inode *inode = file_inode(file);
+ if (inode_permission(inode, MAY_READ) < 0) {
+ struct user_namespace *old, *user_ns;
bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP;
+
+ /* Ensure mm->user_ns contains the executable */
+ user_ns = old = bprm->mm->user_ns;
+ while ((user_ns != &init_user_ns) &&
+ !privileged_wrt_inode_uidgid(user_ns, inode))
+ user_ns = user_ns->parent;
+
+ if (old != user_ns) {
+ bprm->mm->user_ns = get_user_ns(user_ns);
+ put_user_ns(old);
+ }
+ }
}
EXPORT_SYMBOL(would_dump);

@@ -1306,7 +1327,6 @@ void setup_new_exec(struct linux_binprm * bprm)
!gid_eq(bprm->cred->gid, current_egid())) {
current->pdeath_signal = 0;
} else {
- would_dump(bprm, bprm->file);
if (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)
set_dumpable(current->mm, suid_dumpable);
}
@@ -1315,7 +1335,6 @@ void setup_new_exec(struct linux_binprm * bprm)
group */
current->self_exec_id++;
flush_signal_handlers(current, 0);
- do_close_on_exec(current->files);
}
EXPORT_SYMBOL(setup_new_exec);

@@ -1406,7 +1425,7 @@ static void check_unsafe_exec(struct linux_binprm *bprm)
unsigned n_fs;

if (p->ptrace) {
- if (p->ptrace & PT_PTRACE_CAP)
+ if (ptracer_capable(p, current_user_ns()))
bprm->unsafe |= LSM_UNSAFE_PTRACE_CAP;
else
bprm->unsafe |= LSM_UNSAFE_PTRACE;
@@ -1741,6 +1760,8 @@ static int do_execveat_common(int fd, struct filename *filename,
if (retval < 0)
goto out;

+ would_dump(bprm, bprm->file);
+
retval = exec_binprm(bprm);
if (retval < 0)
goto out;
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index b1d52c14098e..f97611171023 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -414,17 +414,19 @@ static inline int ext4_inode_journal_mode(struct inode *inode)
return EXT4_INODE_WRITEBACK_DATA_MODE; /* writeback */
/* We do not support data journalling with delayed allocation */
if (!S_ISREG(inode->i_mode) ||
- test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
- return EXT4_INODE_JOURNAL_DATA_MODE; /* journal data */
- if (ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
- !test_opt(inode->i_sb, DELALLOC))
+ test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ||
+ (ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
+ !test_opt(inode->i_sb, DELALLOC))) {
+ /* We do not support data journalling for encrypted data */
+ if (S_ISREG(inode->i_mode) && ext4_encrypted_inode(inode))
+ return EXT4_INODE_ORDERED_DATA_MODE; /* ordered */
return EXT4_INODE_JOURNAL_DATA_MODE; /* journal data */
+ }
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
return EXT4_INODE_ORDERED_DATA_MODE; /* ordered */
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
return EXT4_INODE_WRITEBACK_DATA_MODE; /* writeback */
- else
- BUG();
+ BUG();
}

static inline int ext4_should_journal_data(struct inode *inode)
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index f74d5ee2cdec..d8ca4b9f9dd6 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -336,8 +336,10 @@ static int ext4_update_inline_data(handle_t *handle, struct inode *inode,

len -= EXT4_MIN_INLINE_DATA_SIZE;
value = kzalloc(len, GFP_NOFS);
- if (!value)
+ if (!value) {
+ error = -ENOMEM;
goto out;
+ }

error = ext4_xattr_ibody_get(inode, i.name_index, i.name,
value, len);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9c064727ed62..33a509c876ee 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4434,6 +4434,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
struct inode *inode;
journal_t *journal = EXT4_SB(sb)->s_journal;
long ret;
+ loff_t size;
int block;
uid_t i_uid;
gid_t i_gid;
@@ -4534,6 +4535,11 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
ei->i_file_acl |=
((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
inode->i_size = ext4_isize(raw_inode);
+ if ((size = i_size_read(inode)) < 0) {
+ EXT4_ERROR_INODE(inode, "bad i_size value: %lld", size);
+ ret = -EFSCORRUPTED;
+ goto bad_inode;
+ }
ei->i_disksize = inode->i_size;
#ifdef CONFIG_QUOTA
ei->i_reserved_quota = 0;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f418f55c2bbe..7ae43c59bc79 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -669,7 +669,7 @@ static void ext4_mb_mark_free_simple(struct super_block *sb,
ext4_grpblk_t min;
ext4_grpblk_t max;
ext4_grpblk_t chunk;
- unsigned short border;
+ unsigned int border;

BUG_ON(len > EXT4_CLUSTERS_PER_GROUP(sb));

@@ -2287,7 +2287,7 @@ static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v)
struct ext4_group_info *grinfo;
struct sg {
struct ext4_group_info info;
- ext4_grpblk_t counters[16];
+ ext4_grpblk_t counters[EXT4_MAX_BLOCK_LOG_SIZE + 2];
} sg;

group--;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 52b0530c5d65..478630af0d19 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3193,10 +3193,15 @@ static int count_overhead(struct super_block *sb, ext4_group_t grp,
ext4_set_bit(s++, buf);
count++;
}
- for (j = ext4_bg_num_gdb(sb, grp); j > 0; j--) {
- ext4_set_bit(EXT4_B2C(sbi, s++), buf);
- count++;
+ j = ext4_bg_num_gdb(sb, grp);
+ if (s + j > EXT4_BLOCKS_PER_GROUP(sb)) {
+ ext4_error(sb, "Invalid number of block group "
+ "descriptor blocks: %d", j);
+ j = EXT4_BLOCKS_PER_GROUP(sb) - s;
}
+ count += j;
+ for (; j > 0; j--)
+ ext4_set_bit(EXT4_B2C(sbi, s++), buf);
}
if (!count)
return 0;
@@ -3301,7 +3306,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
char *orig_data = kstrdup(data, GFP_KERNEL);
struct buffer_head *bh;
struct ext4_super_block *es = NULL;
- struct ext4_sb_info *sbi;
+ struct ext4_sb_info *sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
ext4_fsblk_t block;
ext4_fsblk_t sb_block = get_sb_block(&data);
ext4_fsblk_t logical_sb_block;
@@ -3320,16 +3325,14 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
unsigned int journal_ioprio = DEFAULT_JOURNAL_IOPRIO;
ext4_group_t first_not_zeroed;

- sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
- if (!sbi)
- goto out_free_orig;
+ if ((data && !orig_data) || !sbi)
+ goto out_free_base;

sbi->s_blockgroup_lock =
kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL);
- if (!sbi->s_blockgroup_lock) {
- kfree(sbi);
- goto out_free_orig;
- }
+ if (!sbi->s_blockgroup_lock)
+ goto out_free_base;
+
sb->s_fs_info = sbi;
sbi->s_sb = sb;
sbi->s_inode_readahead_blks = EXT4_DEF_INODE_READAHEAD_BLKS;
@@ -3475,11 +3478,19 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
*/
sbi->s_li_wait_mult = EXT4_DEF_LI_WAIT_MULT;

- if (!parse_options((char *) sbi->s_es->s_mount_opts, sb,
- &journal_devnum, &journal_ioprio, 0)) {
- ext4_msg(sb, KERN_WARNING,
- "failed to parse options in superblock: %s",
- sbi->s_es->s_mount_opts);
+ if (sbi->s_es->s_mount_opts[0]) {
+ char *s_mount_opts = kstrndup(sbi->s_es->s_mount_opts,
+ sizeof(sbi->s_es->s_mount_opts),
+ GFP_KERNEL);
+ if (!s_mount_opts)
+ goto failed_mount;
+ if (!parse_options(s_mount_opts, sb, &journal_devnum,
+ &journal_ioprio, 0)) {
+ ext4_msg(sb, KERN_WARNING,
+ "failed to parse options in superblock: %s",
+ s_mount_opts);
+ }
+ kfree(s_mount_opts);
}
sbi->s_def_mount_opt = sbi->s_mount_opt;
if (!parse_options((char *) data, sb, &journal_devnum,
@@ -3505,6 +3516,11 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
"both data=journal and dax");
goto failed_mount;
}
+ if (ext4_has_feature_encrypt(sb)) {
+ ext4_msg(sb, KERN_WARNING,
+ "encrypted files will use data=ordered "
+ "instead of data journaling mode");
+ }
if (test_opt(sb, DELALLOC))
clear_opt(sb, DELALLOC);
} else {
@@ -3660,12 +3676,16 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)

sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
- if (EXT4_INODE_SIZE(sb) == 0 || EXT4_INODES_PER_GROUP(sb) == 0)
- goto cantfind_ext4;

sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb);
if (sbi->s_inodes_per_block == 0)
goto cantfind_ext4;
+ if (sbi->s_inodes_per_group < sbi->s_inodes_per_block ||
+ sbi->s_inodes_per_group > blocksize * 8) {
+ ext4_msg(sb, KERN_ERR, "invalid inodes per group: %lu\n",
+ sbi->s_blocks_per_group);
+ goto failed_mount;
+ }
sbi->s_itb_per_group = sbi->s_inodes_per_group /
sbi->s_inodes_per_block;
sbi->s_desc_per_block = blocksize / EXT4_DESC_SIZE(sb);
@@ -3748,13 +3768,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
}
sbi->s_cluster_ratio = clustersize / blocksize;

- if (sbi->s_inodes_per_group > blocksize * 8) {
- ext4_msg(sb, KERN_ERR,
- "#inodes per group too big: %lu",
- sbi->s_inodes_per_group);
- goto failed_mount;
- }
-
/* Do we have standard group size of clustersize * 8 blocks ? */
if (sbi->s_blocks_per_group == clustersize << 3)
set_opt2(sb, STD_GROUP_SIZE);
@@ -4160,7 +4173,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)

if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount"))
ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. "
- "Opts: %s%s%s", descr, sbi->s_es->s_mount_opts,
+ "Opts: %.*s%s%s", descr,
+ (int) sizeof(sbi->s_es->s_mount_opts),
+ sbi->s_es->s_mount_opts,
*sbi->s_es->s_mount_opts ? "; " : "", orig_data);

if (es->s_error_count)
@@ -4239,8 +4254,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
out_fail:
sb->s_fs_info = NULL;
kfree(sbi->s_blockgroup_lock);
+out_free_base:
kfree(sbi);
-out_free_orig:
kfree(orig_data);
return err ? err : ret;
}
@@ -4550,7 +4565,8 @@ static int ext4_commit_super(struct super_block *sb, int sync)
&EXT4_SB(sb)->s_freeinodes_counter));
BUFFER_TRACE(sbh, "marking dirty");
ext4_superblock_csum_set(sb);
- lock_buffer(sbh);
+ if (sync)
+ lock_buffer(sbh);
if (buffer_write_io_error(sbh)) {
/*
* Oh, dear. A previous attempt to write the
@@ -4566,8 +4582,8 @@ static int ext4_commit_super(struct super_block *sb, int sync)
set_buffer_uptodate(sbh);
}
mark_buffer_dirty(sbh);
- unlock_buffer(sbh);
if (sync) {
+ unlock_buffer(sbh);
error = __sync_dirty_buffer(sbh,
test_opt(sb, BARRIER) ? WRITE_FUA : WRITE_SYNC);
if (error)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 7e9b504bd8b2..b4dbc2f59656 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -772,6 +772,11 @@ int get_valid_checkpoint(struct f2fs_sb_info *sbi)
if (sanity_check_ckpt(sbi))
goto fail_no_cp;

+ if (cur_page == cp1)
+ sbi->cur_cp_pack = 1;
+ else
+ sbi->cur_cp_pack = 2;
+
if (cp_blks <= 1)
goto done;

@@ -1123,7 +1128,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
le32_to_cpu(ckpt->checksum_offset)))
= cpu_to_le32(crc32);

- start_blk = __start_cp_addr(sbi);
+ start_blk = __start_cp_next_addr(sbi);

/* need to wait for end_io results */
wait_on_all_pages_writeback(sbi);
@@ -1187,6 +1192,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
clear_prefree_segments(sbi, cpc);
clear_sbi_flag(sbi, SBI_IS_DIRTY);
clear_sbi_flag(sbi, SBI_NEED_CP);
+ __set_cp_next_pack(sbi);

/*
* redirty superblock if metadata like node page or inode cache is
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index fb245bd302e4..1c35e80732e0 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -373,6 +373,7 @@ static int stat_open(struct inode *inode, struct file *file)
}

static const struct file_operations stat_fops = {
+ .owner = THIS_MODULE,
.open = stat_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9e8de18a168a..6dd03115789b 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -428,7 +428,7 @@ struct f2fs_inode_info {
/* Use below internally in f2fs*/
unsigned long flags; /* use to pass per-file flags */
struct rw_semaphore i_sem; /* protect fi info */
- struct percpu_counter dirty_pages; /* # of dirty pages */
+ atomic_t dirty_pages; /* # of dirty pages */
f2fs_hash_t chash; /* hash value of given file name */
unsigned int clevel; /* maximum level of given file name */
nid_t i_xattr_nid; /* node id that contains xattrs */
@@ -764,6 +764,7 @@ struct f2fs_sb_info {

/* for checkpoint */
struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
+ int cur_cp_pack; /* remain current cp pack */
spinlock_t cp_lock; /* for flag in ckpt */
struct inode *meta_inode; /* cache meta blocks */
struct mutex cp_mutex; /* checkpoint procedure lock */
@@ -1242,7 +1243,7 @@ static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)

static inline void inode_inc_dirty_pages(struct inode *inode)
{
- percpu_counter_inc(&F2FS_I(inode)->dirty_pages);
+ atomic_inc(&F2FS_I(inode)->dirty_pages);
inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
}
@@ -1258,7 +1259,7 @@ static inline void inode_dec_dirty_pages(struct inode *inode)
!S_ISLNK(inode->i_mode))
return;

- percpu_counter_dec(&F2FS_I(inode)->dirty_pages);
+ atomic_dec(&F2FS_I(inode)->dirty_pages);
dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
}
@@ -1268,9 +1269,9 @@ static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
return percpu_counter_sum_positive(&sbi->nr_pages[count_type]);
}

-static inline s64 get_dirty_pages(struct inode *inode)
+static inline int get_dirty_pages(struct inode *inode)
{
- return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages);
+ return atomic_read(&F2FS_I(inode)->dirty_pages);
}

static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
@@ -1329,22 +1330,27 @@ static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)

static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
{
- block_t start_addr;
- struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
- unsigned long long ckpt_version = cur_cp_version(ckpt);
-
- start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
+ block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);

- /*
- * odd numbered checkpoint should at cp segment 0
- * and even segment must be at cp segment 1
- */
- if (!(ckpt_version & 1))
+ if (sbi->cur_cp_pack == 2)
start_addr += sbi->blocks_per_seg;
+ return start_addr;
+}

+static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
+{
+ block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
+
+ if (sbi->cur_cp_pack == 1)
+ start_addr += sbi->blocks_per_seg;
return start_addr;
}

+static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
+{
+ sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
+}
+
static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
{
return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c7865073cd26..801111e1f8ef 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -967,7 +967,7 @@ static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
new_size = (dst + i) << PAGE_SHIFT;
if (dst_inode->i_size < new_size)
f2fs_i_size_write(dst_inode, new_size);
- } while ((do_replace[i] || blkaddr[i] == NULL_ADDR) && --ilen);
+ } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));

f2fs_put_dnode(&dn);
} else {
@@ -1526,7 +1526,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
goto out;

f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
- "Unexpected flush for atomic writes: ino=%lu, npages=%lld",
+ "Unexpected flush for atomic writes: ino=%lu, npages=%u",
inode->i_ino, get_dirty_pages(inode));
ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
if (ret)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 6132b4ce4e4c..8021d35df7b0 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -558,13 +558,9 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)

init_once((void *) fi);

- if (percpu_counter_init(&fi->dirty_pages, 0, GFP_NOFS)) {
- kmem_cache_free(f2fs_inode_cachep, fi);
- return NULL;
- }
-
/* Initialize f2fs-specific inode info */
fi->vfs_inode.i_version = 1;
+ atomic_set(&fi->dirty_pages, 0);
fi->i_current_depth = 1;
fi->i_advise = 0;
init_rwsem(&fi->i_sem);
@@ -687,7 +683,6 @@ static void f2fs_i_callback(struct rcu_head *head)

static void f2fs_destroy_inode(struct inode *inode)
{
- percpu_counter_destroy(&F2FS_I(inode)->dirty_pages);
call_rcu(&inode->i_rcu, f2fs_i_callback);
}

diff --git a/fs/splice.c b/fs/splice.c
index 5a7750bd2eea..63b8f54485dc 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1086,7 +1086,13 @@ EXPORT_SYMBOL(do_splice_direct);

static int wait_for_space(struct pipe_inode_info *pipe, unsigned flags)
{
- while (pipe->nrbufs == pipe->buffers) {
+ for (;;) {
+ if (unlikely(!pipe->readers)) {
+ send_sig(SIGPIPE, current, 0);
+ return -EPIPE;
+ }
+ if (pipe->nrbufs != pipe->buffers)
+ return 0;
if (flags & SPLICE_F_NONBLOCK)
return -EAGAIN;
if (signal_pending(current))
@@ -1095,7 +1101,6 @@ static int wait_for_space(struct pipe_inode_info *pipe, unsigned flags)
pipe_wait(pipe);
pipe->waiting_writers--;
}
- return 0;
}

static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe,
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 552465e011ec..47074e0c33f3 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -1792,6 +1792,7 @@ xfs_swap_extent_forks(
struct xfs_ifork tempifp, *ifp, *tifp;
int aforkblks = 0;
int taforkblks = 0;
+ xfs_extnum_t nextents;
__uint64_t tmp;
int error;

@@ -1881,7 +1882,8 @@ xfs_swap_extent_forks(
* pointer. Otherwise it's already NULL or
* pointing to the extent.
*/
- if (ip->i_d.di_nextents <= XFS_INLINE_EXTS) {
+ nextents = ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+ if (nextents <= XFS_INLINE_EXTS) {
ifp->if_u1.if_extents =
ifp->if_u2.if_inline_ext;
}
@@ -1900,7 +1902,8 @@ xfs_swap_extent_forks(
* pointer. Otherwise it's already NULL or
* pointing to the extent.
*/
- if (tip->i_d.di_nextents <= XFS_INLINE_EXTS) {
+ nextents = tip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+ if (nextents <= XFS_INLINE_EXTS) {
tifp->if_u1.if_extents =
tifp->if_u2.if_inline_ext;
}
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 9b3d7c76915d..2d91f5ab7538 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -4929,6 +4929,7 @@ xlog_recover_clear_agi_bucket(
agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
offset = offsetof(xfs_agi_t, agi_unlinked) +
(sizeof(xfs_agino_t) * bucket);
+ xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
xfs_trans_log_buf(tp, agibp, offset,
(offset + sizeof(xfs_agino_t) - 1));

diff --git a/include/asm-generic/asm-prototypes.h b/include/asm-generic/asm-prototypes.h
new file mode 100644
index 000000000000..df13637e4017
--- /dev/null
+++ b/include/asm-generic/asm-prototypes.h
@@ -0,0 +1,7 @@
+#include <linux/bitops.h>
+extern void *__memset(void *, int, __kernel_size_t);
+extern void *__memcpy(void *, const void *, __kernel_size_t);
+extern void *__memmove(void *, const void *, __kernel_size_t);
+extern void *memset(void *, int, __kernel_size_t);
+extern void *memcpy(void *, const void *, __kernel_size_t);
+extern void *memmove(void *, const void *, __kernel_size_t);
diff --git a/include/linux/capability.h b/include/linux/capability.h
index dbc21c719ce6..6ffb67e10c06 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -240,8 +240,10 @@ static inline bool ns_capable_noaudit(struct user_namespace *ns, int cap)
return true;
}
#endif /* CONFIG_MULTIUSER */
+extern bool privileged_wrt_inode_uidgid(struct user_namespace *ns, const struct inode *inode);
extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
+extern bool ptracer_capable(struct task_struct *tsk, struct user_namespace *ns);

/* audit system wants to get cap info from files as well */
extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index b886dc17f2f3..e571128ad99a 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -93,22 +93,16 @@ extern bool cpuhp_tasks_frozen;
{ .notifier_call = fn, .priority = pri }; \
__register_cpu_notifier(&fn##_nb); \
}
-#else /* #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) */
-#define cpu_notifier(fn, pri) do { (void)(fn); } while (0)
-#define __cpu_notifier(fn, pri) do { (void)(fn); } while (0)
-#endif /* #else #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) */

-#ifdef CONFIG_HOTPLUG_CPU
extern int register_cpu_notifier(struct notifier_block *nb);
extern int __register_cpu_notifier(struct notifier_block *nb);
extern void unregister_cpu_notifier(struct notifier_block *nb);
extern void __unregister_cpu_notifier(struct notifier_block *nb);
-#else

-#ifndef MODULE
-extern int register_cpu_notifier(struct notifier_block *nb);
-extern int __register_cpu_notifier(struct notifier_block *nb);
-#else
+#else /* #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) */
+#define cpu_notifier(fn, pri) do { (void)(fn); } while (0)
+#define __cpu_notifier(fn, pri) do { (void)(fn); } while (0)
+
static inline int register_cpu_notifier(struct notifier_block *nb)
{
return 0;
@@ -118,7 +112,6 @@ static inline int __register_cpu_notifier(struct notifier_block *nb)
{
return 0;
}
-#endif

static inline void unregister_cpu_notifier(struct notifier_block *nb)
{
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a92c8d73aeaf..0b5b2e4df14e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1270,6 +1270,8 @@ extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *
unsigned int gup_flags);
extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
void *buf, int len, unsigned int gup_flags);
+extern int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+ unsigned long addr, void *buf, int len, unsigned int gup_flags);

long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
unsigned long start, unsigned long nr_pages,
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 4a8acedf4b7d..08d947fc4c59 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -473,6 +473,7 @@ struct mm_struct {
*/
struct task_struct __rcu *owner;
#endif
+ struct user_namespace *user_ns;

/* store ref to file /proc/<pid>/exe symlink points to */
struct file __rcu *exe_file;
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index bca26157f5b6..f6bc76501912 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -19,6 +19,7 @@

struct dev_pm_opp;
struct device;
+struct opp_table;

enum dev_pm_opp_event {
OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
@@ -62,8 +63,8 @@ int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
void dev_pm_opp_put_supported_hw(struct device *dev);
int dev_pm_opp_set_prop_name(struct device *dev, const char *name);
void dev_pm_opp_put_prop_name(struct device *dev);
-int dev_pm_opp_set_regulator(struct device *dev, const char *name);
-void dev_pm_opp_put_regulator(struct device *dev);
+struct opp_table *dev_pm_opp_set_regulator(struct device *dev, const char *name);
+void dev_pm_opp_put_regulator(struct opp_table *opp_table);
int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask);
int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
@@ -170,12 +171,12 @@ static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name)

static inline void dev_pm_opp_put_prop_name(struct device *dev) {}

-static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name)
+static inline struct opp_table *dev_pm_opp_set_regulator(struct device *dev, const char *name)
{
- return -ENOTSUPP;
+ return ERR_PTR(-ENOTSUPP);
}

-static inline void dev_pm_opp_put_regulator(struct device *dev) {}
+static inline void dev_pm_opp_put_regulator(struct opp_table *opp_table) {}

static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
{
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 504c98a278d4..e0e539321ab9 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -8,6 +8,9 @@
#include <linux/pid_namespace.h> /* For task_active_pid_ns. */
#include <uapi/linux/ptrace.h>

+extern int ptrace_access_vm(struct task_struct *tsk, unsigned long addr,
+ void *buf, int len, unsigned int gup_flags);
+
/*
* Ptrace flags
*
@@ -19,7 +22,6 @@
#define PT_SEIZED 0x00010000 /* SEIZE used, enable new behavior */
#define PT_PTRACED 0x00000001
#define PT_DTRACE 0x00000002 /* delayed trace (used on m68k, i386) */
-#define PT_PTRACE_CAP 0x00000004 /* ptracer can follow suid-exec */

#define PT_OPT_FLAG_SHIFT 3
/* PT_TRACE_* event enable flags */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e9c009dc3a4a..75d9a57e212e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1656,6 +1656,7 @@ struct task_struct {
struct list_head cpu_timers[3];

/* process credentials */
+ const struct cred __rcu *ptracer_cred; /* Tracer's credentials at attach */
const struct cred __rcu *real_cred; /* objective and real subjective task
* credentials (COW) */
const struct cred __rcu *cred; /* effective (overridable) subjective task
diff --git a/kernel/capability.c b/kernel/capability.c
index 00411c82dac5..4984e1f552eb 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -457,6 +457,19 @@ bool file_ns_capable(const struct file *file, struct user_namespace *ns,
EXPORT_SYMBOL(file_ns_capable);

/**
+ * privileged_wrt_inode_uidgid - Do capabilities in the namespace work over the inode?
+ * @ns: The user namespace in question
+ * @inode: The inode in question
+ *
+ * Return true if the inode uid and gid are within the namespace.
+ */
+bool privileged_wrt_inode_uidgid(struct user_namespace *ns, const struct inode *inode)
+{
+ return kuid_has_mapping(ns, inode->i_uid) &&
+ kgid_has_mapping(ns, inode->i_gid);
+}
+
+/**
* capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
* @inode: The inode in question
* @cap: The capability in question
@@ -469,7 +482,26 @@ bool capable_wrt_inode_uidgid(const struct inode *inode, int cap)
{
struct user_namespace *ns = current_user_ns();

- return ns_capable(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
- kgid_has_mapping(ns, inode->i_gid);
+ return ns_capable(ns, cap) && privileged_wrt_inode_uidgid(ns, inode);
}
EXPORT_SYMBOL(capable_wrt_inode_uidgid);
+
+/**
+ * ptracer_capable - Determine if the ptracer holds CAP_SYS_PTRACE in the namespace
+ * @tsk: The task that may be ptraced
+ * @ns: The user namespace to search for CAP_SYS_PTRACE in
+ *
+ * Return true if the task that is ptracing the current task had CAP_SYS_PTRACE
+ * in the specified user namespace.
+ */
+bool ptracer_capable(struct task_struct *tsk, struct user_namespace *ns)
+{
+ int ret = 0; /* An absent tracer adds no restrictions */
+ const struct cred *cred;
+ rcu_read_lock();
+ cred = rcu_dereference(tsk->ptracer_cred);
+ if (cred)
+ ret = security_capable_noaudit(cred, ns, CAP_SYS_PTRACE);
+ rcu_read_unlock();
+ return (ret == 0);
+}
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 29de1a9352c0..217fd2e7f435 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -659,7 +659,6 @@ void __init cpuhp_threads_init(void)
kthread_unpark(this_cpu_read(cpuhp_state.thread));
}

-#ifdef CONFIG_HOTPLUG_CPU
EXPORT_SYMBOL(register_cpu_notifier);
EXPORT_SYMBOL(__register_cpu_notifier);
void unregister_cpu_notifier(struct notifier_block *nb)
@@ -676,6 +675,7 @@ void __unregister_cpu_notifier(struct notifier_block *nb)
}
EXPORT_SYMBOL(__unregister_cpu_notifier);

+#ifdef CONFIG_HOTPLUG_CPU
/**
* clear_tasks_mm_cpumask - Safely clear tasks' mm_cpumask for a CPU
* @cpu: a CPU id
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 0874e2edd275..79517e5549f1 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -598,11 +598,11 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs,
/*
* Wait for the other CPUs to be notified and be waiting for us:
*/
- time_left = loops_per_jiffy * HZ;
+ time_left = MSEC_PER_SEC;
while (kgdb_do_roundup && --time_left &&
(atomic_read(&masters_in_kgdb) + atomic_read(&slaves_in_kgdb)) !=
online_cpus)
- cpu_relax();
+ udelay(1000);
if (!time_left)
pr_crit("Timed out waiting for secondary CPUs.\n");

diff --git a/kernel/fork.c b/kernel/fork.c
index 997ac1d584f7..ba8a01564985 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -745,7 +745,8 @@ static void mm_init_owner(struct mm_struct *mm, struct task_struct *p)
#endif
}

-static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
+static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
+ struct user_namespace *user_ns)
{
mm->mmap = NULL;
mm->mm_rb = RB_ROOT;
@@ -785,6 +786,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
if (init_new_context(p, mm))
goto fail_nocontext;

+ mm->user_ns = get_user_ns(user_ns);
return mm;

fail_nocontext:
@@ -830,7 +832,7 @@ struct mm_struct *mm_alloc(void)
return NULL;

memset(mm, 0, sizeof(*mm));
- return mm_init(mm, current);
+ return mm_init(mm, current, current_user_ns());
}

/*
@@ -845,6 +847,7 @@ void __mmdrop(struct mm_struct *mm)
destroy_context(mm);
mmu_notifier_mm_destroy(mm);
check_mm(mm);
+ put_user_ns(mm->user_ns);
free_mm(mm);
}
EXPORT_SYMBOL_GPL(__mmdrop);
@@ -1126,7 +1129,7 @@ static struct mm_struct *dup_mm(struct task_struct *tsk)

memcpy(mm, oldmm, sizeof(*mm));

- if (!mm_init(mm, tsk))
+ if (!mm_init(mm, tsk, mm->user_ns))
goto fail_nomem;

err = dup_mmap(mm, oldmm);
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index e6474f7272ec..49ba7c1ade9d 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -27,6 +27,35 @@
#include <linux/cn_proc.h>
#include <linux/compat.h>

+/*
+ * Access another process' address space via ptrace.
+ * Source/target buffer must be kernel space,
+ * Do not walk the page table directly, use get_user_pages
+ */
+int ptrace_access_vm(struct task_struct *tsk, unsigned long addr,
+ void *buf, int len, unsigned int gup_flags)
+{
+ struct mm_struct *mm;
+ int ret;
+
+ mm = get_task_mm(tsk);
+ if (!mm)
+ return 0;
+
+ if (!tsk->ptrace ||
+ (current != tsk->parent) ||
+ ((get_dumpable(mm) != SUID_DUMP_USER) &&
+ !ptracer_capable(tsk, mm->user_ns))) {
+ mmput(mm);
+ return 0;
+ }
+
+ ret = __access_remote_vm(tsk, mm, addr, buf, len, gup_flags);
+ mmput(mm);
+
+ return ret;
+}
+

/*
* ptrace a task: make the debugger its new parent and
@@ -39,6 +68,9 @@ void __ptrace_link(struct task_struct *child, struct task_struct *new_parent)
BUG_ON(!list_empty(&child->ptrace_entry));
list_add(&child->ptrace_entry, &new_parent->ptraced);
child->parent = new_parent;
+ rcu_read_lock();
+ child->ptracer_cred = get_cred(__task_cred(new_parent));
+ rcu_read_unlock();
}

/**
@@ -71,12 +103,16 @@ void __ptrace_link(struct task_struct *child, struct task_struct *new_parent)
*/
void __ptrace_unlink(struct task_struct *child)
{
+ const struct cred *old_cred;
BUG_ON(!child->ptrace);

clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);

child->parent = child->real_parent;
list_del_init(&child->ptrace_entry);
+ old_cred = child->ptracer_cred;
+ child->ptracer_cred = NULL;
+ put_cred(old_cred);

spin_lock(&child->sighand->siglock);
child->ptrace = 0;
@@ -220,7 +256,7 @@ static int ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
{
const struct cred *cred = current_cred(), *tcred;
- int dumpable = 0;
+ struct mm_struct *mm;
kuid_t caller_uid;
kgid_t caller_gid;

@@ -271,16 +307,11 @@ static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
return -EPERM;
ok:
rcu_read_unlock();
- smp_rmb();
- if (task->mm)
- dumpable = get_dumpable(task->mm);
- rcu_read_lock();
- if (dumpable != SUID_DUMP_USER &&
- !ptrace_has_cap(__task_cred(task)->user_ns, mode)) {
- rcu_read_unlock();
- return -EPERM;
- }
- rcu_read_unlock();
+ mm = task->mm;
+ if (mm &&
+ ((get_dumpable(mm) != SUID_DUMP_USER) &&
+ !ptrace_has_cap(mm->user_ns, mode)))
+ return -EPERM;

return security_ptrace_access_check(task, mode);
}
@@ -344,10 +375,6 @@ static int ptrace_attach(struct task_struct *task, long request,

if (seize)
flags |= PT_SEIZED;
- rcu_read_lock();
- if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
- flags |= PT_PTRACE_CAP;
- rcu_read_unlock();
task->ptrace = flags;

__ptrace_link(task, current);
@@ -537,7 +564,8 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
int this_len, retval;

this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
- retval = access_process_vm(tsk, src, buf, this_len, FOLL_FORCE);
+ retval = ptrace_access_vm(tsk, src, buf, this_len, FOLL_FORCE);
+
if (!retval) {
if (copied)
break;
@@ -564,7 +592,7 @@ int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long ds
this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
if (copy_from_user(buf, src, this_len))
return -EFAULT;
- retval = access_process_vm(tsk, dst, buf, this_len,
+ retval = ptrace_access_vm(tsk, dst, buf, this_len,
FOLL_FORCE | FOLL_WRITE);
if (!retval) {
if (copied)
@@ -1128,7 +1156,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
unsigned long tmp;
int copied;

- copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), FOLL_FORCE);
+ copied = ptrace_access_vm(tsk, addr, &tmp, sizeof(tmp), FOLL_FORCE);
if (copied != sizeof(tmp))
return -EIO;
return put_user(tmp, (unsigned long __user *)data);
@@ -1139,7 +1167,7 @@ int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
{
int copied;

- copied = access_process_vm(tsk, addr, &data, sizeof(data),
+ copied = ptrace_access_vm(tsk, addr, &data, sizeof(data),
FOLL_FORCE | FOLL_WRITE);
return (copied == sizeof(data)) ? 0 : -EIO;
}
@@ -1157,7 +1185,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
switch (request) {
case PTRACE_PEEKTEXT:
case PTRACE_PEEKDATA:
- ret = access_process_vm(child, addr, &word, sizeof(word),
+ ret = ptrace_access_vm(child, addr, &word, sizeof(word),
FOLL_FORCE);
if (ret != sizeof(word))
ret = -EIO;
@@ -1167,7 +1195,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,

case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data, sizeof(data),
+ ret = ptrace_access_vm(child, addr, &data, sizeof(data),
FOLL_FORCE | FOLL_WRITE);
ret = (ret != sizeof(data) ? -EIO : 0);
break;
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 9acb29f280ec..6d1020c03d41 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -344,7 +344,6 @@ static void watchdog_overflow_callback(struct perf_event *event,
*/
if (is_hardlockup()) {
int this_cpu = smp_processor_id();
- struct pt_regs *regs = get_irq_regs();

/* only print hardlockups once */
if (__this_cpu_read(hard_watchdog_warn) == true)
diff --git a/mm/filemap.c b/mm/filemap.c
index 50b52fe51937..9a50acecc473 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1686,7 +1686,7 @@ static ssize_t do_generic_file_read(struct file *filp, loff_t *ppos,
int error = 0;

if (unlikely(*ppos >= inode->i_sb->s_maxbytes))
- return -EINVAL;
+ return 0;
iov_iter_truncate(iter, inode->i_sb->s_maxbytes);

index = *ppos >> PAGE_SHIFT;
diff --git a/mm/init-mm.c b/mm/init-mm.c
index a56a851908d2..975e49f00f34 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -6,6 +6,7 @@
#include <linux/cpumask.h>

#include <linux/atomic.h>
+#include <linux/user_namespace.h>
#include <asm/pgtable.h>
#include <asm/mmu.h>

@@ -21,5 +22,6 @@ struct mm_struct init_mm = {
.mmap_sem = __RWSEM_INITIALIZER(init_mm.mmap_sem),
.page_table_lock = __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
.mmlist = LIST_HEAD_INIT(init_mm.mmlist),
+ .user_ns = &init_user_ns,
INIT_MM_CONTEXT(init_mm)
};
diff --git a/mm/memory.c b/mm/memory.c
index e18c57bdc75c..cbb1e5e5f791 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3868,7 +3868,7 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
* Access another process' address space as given in mm. If non-NULL, use the
* given task for page fault accounting.
*/
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
unsigned long addr, void *buf, int len, unsigned int gup_flags)
{
struct vm_area_struct *vma;
diff --git a/mm/nommu.c b/mm/nommu.c
index 8b8faaf2a9e9..44265e00b701 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1808,7 +1808,7 @@ void filemap_map_pages(struct fault_env *fe,
}
EXPORT_SYMBOL(filemap_map_pages);

-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
unsigned long addr, void *buf, int len, unsigned int gup_flags)
{
struct vm_area_struct *vma;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6de9440e3ae2..34ada718ef47 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2192,7 +2192,7 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
unsigned long count, struct list_head *list,
int migratetype, bool cold)
{
- int i;
+ int i, alloced = 0;

spin_lock(&zone->lock);
for (i = 0; i < count; ++i) {
@@ -2217,13 +2217,21 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
else
list_add_tail(&page->lru, list);
list = &page->lru;
+ alloced++;
if (is_migrate_cma(get_pcppage_migratetype(page)))
__mod_zone_page_state(zone, NR_FREE_CMA_PAGES,
-(1 << order));
}
+
+ /*
+ * i pages were removed from the buddy list even if some leak due
+ * to check_pcp_refill failing so adjust NR_FREE_PAGES based
+ * on i. Do not confuse with 'alloced' which is the number of
+ * pages added to the pcp list.
+ */
__mod_zone_page_state(zone, NR_FREE_PAGES, -(i << order));
spin_unlock(&zone->lock);
- return i;
+ return alloced;
}

#ifdef CONFIG_NUMA
diff --git a/mm/vmscan.c b/mm/vmscan.c
index d75cdf360730..c4abf08861d2 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -291,6 +291,7 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
int nid = shrinkctl->nid;
long batch_size = shrinker->batch ? shrinker->batch
: SHRINK_BATCH;
+ long scanned = 0, next_deferred;

freeable = shrinker->count_objects(shrinker, shrinkctl);
if (freeable == 0)
@@ -312,7 +313,9 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
pr_err("shrink_slab: %pF negative objects to delete nr=%ld\n",
shrinker->scan_objects, total_scan);
total_scan = freeable;
- }
+ next_deferred = nr;
+ } else
+ next_deferred = total_scan;

/*
* We need to avoid excessive windup on filesystem shrinkers
@@ -369,17 +372,22 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,

count_vm_events(SLABS_SCANNED, nr_to_scan);
total_scan -= nr_to_scan;
+ scanned += nr_to_scan;

cond_resched();
}

+ if (next_deferred >= scanned)
+ next_deferred -= scanned;
+ else
+ next_deferred = 0;
/*
* move the unused scan count back into the shrinker in a
* manner that handles concurrent updates. If we exhausted the
* scan, there is no need to do an update.
*/
- if (total_scan > 0)
- new_nr = atomic_long_add_return(total_scan,
+ if (next_deferred > 0)
+ new_nr = atomic_long_add_return(next_deferred,
&shrinker->nr_deferred[nid]);
else
new_nr = atomic_long_read(&shrinker->nr_deferred[nid]);
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 8ea9fd2b6573..3c575cd07888 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -51,7 +51,7 @@ set_debarch() {
debarch=hppa ;;
mips*)
debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
- arm64)
+ aarch64|arm64)
debarch=arm64 ;;
arm*)
if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c
index 7f57a145a47e..a03cf68d0bcd 100644
--- a/sound/pci/hda/hda_auto_parser.c
+++ b/sound/pci/hda/hda_auto_parser.c
@@ -884,6 +884,8 @@ void snd_hda_apply_fixup(struct hda_codec *codec, int action)
}
EXPORT_SYMBOL_GPL(snd_hda_apply_fixup);

+#define IGNORE_SEQ_ASSOC (~(AC_DEFCFG_SEQUENCE | AC_DEFCFG_DEF_ASSOC))
+
static bool pin_config_match(struct hda_codec *codec,
const struct hda_pintbl *pins)
{
@@ -901,7 +903,7 @@ static bool pin_config_match(struct hda_codec *codec,
for (; t_pins->nid; t_pins++) {
if (t_pins->nid == nid) {
found = 1;
- if (t_pins->val == cfg)
+ if ((t_pins->val & IGNORE_SEQ_ASSOC) == (cfg & IGNORE_SEQ_ASSOC))
break;
else if ((cfg & 0xf0000000) == 0x40000000 && (t_pins->val & 0xf0000000) == 0x40000000)
break;
diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index ad06866d7c69..11b9b2f17a2e 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -780,6 +780,7 @@ static const struct hda_pintbl alienware_pincfgs[] = {
static const struct snd_pci_quirk ca0132_quirks[] = {
SND_PCI_QUIRK(0x1028, 0x0685, "Alienware 15 2015", QUIRK_ALIENWARE),
SND_PCI_QUIRK(0x1028, 0x0688, "Alienware 17 2015", QUIRK_ALIENWARE),
+ SND_PCI_QUIRK(0x1028, 0x0708, "Alienware 15 R2 2016", QUIRK_ALIENWARE),
{}
};

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index ed62748a6d55..c15c51bea26d 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -262,6 +262,7 @@ enum {
CXT_FIXUP_CAP_MIX_AMP_5047,
CXT_FIXUP_MUTE_LED_EAPD,
CXT_FIXUP_HP_SPECTRE,
+ CXT_FIXUP_HP_GATE_MIC,
};

/* for hda_fixup_thinkpad_acpi() */
@@ -633,6 +634,17 @@ static void cxt_fixup_cap_mix_amp_5047(struct hda_codec *codec,
(1 << AC_AMPCAP_MUTE_SHIFT));
}

+static void cxt_fixup_hp_gate_mic_jack(struct hda_codec *codec,
+ const struct hda_fixup *fix,
+ int action)
+{
+ /* the mic pin (0x19) doesn't give an unsolicited event;
+ * probe the mic pin together with the headphone pin (0x16)
+ */
+ if (action == HDA_FIXUP_ACT_PROBE)
+ snd_hda_jack_set_gating_jack(codec, 0x19, 0x16);
+}
+
/* ThinkPad X200 & co with cxt5051 */
static const struct hda_pintbl cxt_pincfg_lenovo_x200[] = {
{ 0x16, 0x042140ff }, /* HP (seq# overridden) */
@@ -774,6 +786,10 @@ static const struct hda_fixup cxt_fixups[] = {
{ }
}
},
+ [CXT_FIXUP_HP_GATE_MIC] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = cxt_fixup_hp_gate_mic_jack,
+ },
};

static const struct snd_pci_quirk cxt5045_fixups[] = {
@@ -824,6 +840,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
SND_PCI_QUIRK(0x1025, 0x054c, "Acer Aspire 3830TG", CXT_FIXUP_ASPIRE_DMIC),
SND_PCI_QUIRK(0x1025, 0x054f, "Acer Aspire 4830T", CXT_FIXUP_ASPIRE_DMIC),
SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
+ SND_PCI_QUIRK(0x103c, 0x8115, "HP Z1 Gen3", CXT_FIXUP_HP_GATE_MIC),
SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT_FIXUP_OLPC_XO),
SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index ea81c08ddc7a..3f75d1b83bf2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5917,6 +5917,9 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
{0x12, 0x90a60180},
{0x14, 0x90170120},
{0x21, 0x02211030}),
+ SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+ {0x1b, 0x01011020},
+ {0x21, 0x02211010}),
SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
{0x12, 0x90a60160},
{0x14, 0x90170120},
diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
index 25c6d87c818e..f5a8050351b5 100644
--- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c
+++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
@@ -771,6 +771,9 @@ static int sst_soc_prepare(struct device *dev)
struct sst_data *drv = dev_get_drvdata(dev);
struct snd_soc_pcm_runtime *rtd;

+ if (!drv->soc_card)
+ return 0;
+
/* suspend all pcms first */
snd_soc_suspend(drv->soc_card->dev);
snd_soc_poweroff(drv->soc_card->dev);
@@ -793,6 +796,9 @@ static void sst_soc_complete(struct device *dev)
struct sst_data *drv = dev_get_drvdata(dev);
struct snd_soc_pcm_runtime *rtd;

+ if (!drv->soc_card)
+ return;
+
/* restart SSPs */
list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
struct snd_soc_dai *dai = rtd->cpu_dai;
diff --git a/sound/usb/hiface/pcm.c b/sound/usb/hiface/pcm.c
index 2c44139b4041..33db205dd12b 100644
--- a/sound/usb/hiface/pcm.c
+++ b/sound/usb/hiface/pcm.c
@@ -445,6 +445,8 @@ static int hiface_pcm_prepare(struct snd_pcm_substream *alsa_sub)

mutex_lock(&rt->stream_mutex);

+ hiface_pcm_stream_stop(rt);
+
sub->dma_off = 0;
sub->period_off = 0;

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 2f8c388ef84f..4703caea56b2 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -932,9 +932,10 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */
case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */
case USB_ID(0x046d, 0x0991):
+ case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */
/* Most audio usb devices lie about volume resolution.
* Most Logitech webcams have res = 384.
- * Proboly there is some logitech magic behind this number --fishor
+ * Probably there is some logitech magic behind this number --fishor
*/
if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
usb_audio_info(chip,
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