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-rw-r--r--kernel/events/core.c67
-rw-r--r--kernel/irq/chip.c2
-rw-r--r--kernel/irq/irqdomain.c6
-rw-r--r--kernel/irq/manage.c1
-rw-r--r--kernel/posix-cpu-timers.c5
-rw-r--r--kernel/printk.c2
-rw-r--r--kernel/ptrace.c23
-rw-r--r--kernel/resource.c7
-rw-r--r--kernel/sched.c67
-rw-r--r--kernel/sched_rt.c4
-rw-r--r--kernel/sys.c38
-rw-r--r--kernel/sys_ni.c1
-rw-r--r--kernel/sysctl_binary.c2
-rw-r--r--kernel/sysctl_check.c2
-rw-r--r--kernel/taskstats.c1
-rw-r--r--kernel/time/alarmtimer.c18
-rw-r--r--kernel/tsacct.c15
-rw-r--r--kernel/workqueue.c7
18 files changed, 178 insertions, 90 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index b8785e26ee1..0f857782d06 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -399,14 +399,54 @@ void perf_cgroup_switch(struct task_struct *task, int mode)
local_irq_restore(flags);
}
-static inline void perf_cgroup_sched_out(struct task_struct *task)
+static inline void perf_cgroup_sched_out(struct task_struct *task,
+ struct task_struct *next)
{
- perf_cgroup_switch(task, PERF_CGROUP_SWOUT);
+ struct perf_cgroup *cgrp1;
+ struct perf_cgroup *cgrp2 = NULL;
+
+ /*
+ * we come here when we know perf_cgroup_events > 0
+ */
+ cgrp1 = perf_cgroup_from_task(task);
+
+ /*
+ * next is NULL when called from perf_event_enable_on_exec()
+ * that will systematically cause a cgroup_switch()
+ */
+ if (next)
+ cgrp2 = perf_cgroup_from_task(next);
+
+ /*
+ * only schedule out current cgroup events if we know
+ * that we are switching to a different cgroup. Otherwise,
+ * do no touch the cgroup events.
+ */
+ if (cgrp1 != cgrp2)
+ perf_cgroup_switch(task, PERF_CGROUP_SWOUT);
}
-static inline void perf_cgroup_sched_in(struct task_struct *task)
+static inline void perf_cgroup_sched_in(struct task_struct *prev,
+ struct task_struct *task)
{
- perf_cgroup_switch(task, PERF_CGROUP_SWIN);
+ struct perf_cgroup *cgrp1;
+ struct perf_cgroup *cgrp2 = NULL;
+
+ /*
+ * we come here when we know perf_cgroup_events > 0
+ */
+ cgrp1 = perf_cgroup_from_task(task);
+
+ /* prev can never be NULL */
+ cgrp2 = perf_cgroup_from_task(prev);
+
+ /*
+ * only need to schedule in cgroup events if we are changing
+ * cgroup during ctxsw. Cgroup events were not scheduled
+ * out of ctxsw out if that was not the case.
+ */
+ if (cgrp1 != cgrp2)
+ perf_cgroup_switch(task, PERF_CGROUP_SWIN);
}
static inline int perf_cgroup_connect(int fd, struct perf_event *event,
@@ -518,11 +558,13 @@ static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx)
{
}
-static inline void perf_cgroup_sched_out(struct task_struct *task)
+static inline void perf_cgroup_sched_out(struct task_struct *task,
+ struct task_struct *next)
{
}
-static inline void perf_cgroup_sched_in(struct task_struct *task)
+static inline void perf_cgroup_sched_in(struct task_struct *prev,
+ struct task_struct *task)
{
}
@@ -1988,7 +2030,7 @@ void __perf_event_task_sched_out(struct task_struct *task,
* cgroup event are system-wide mode only
*/
if (atomic_read(&__get_cpu_var(perf_cgroup_events)))
- perf_cgroup_sched_out(task);
+ perf_cgroup_sched_out(task, next);
}
static void task_ctx_sched_out(struct perf_event_context *ctx)
@@ -2153,7 +2195,8 @@ static void perf_event_context_sched_in(struct perf_event_context *ctx,
* accessing the event control register. If a NMI hits, then it will
* keep the event running.
*/
-void __perf_event_task_sched_in(struct task_struct *task)
+void __perf_event_task_sched_in(struct task_struct *prev,
+ struct task_struct *task)
{
struct perf_event_context *ctx;
int ctxn;
@@ -2171,7 +2214,7 @@ void __perf_event_task_sched_in(struct task_struct *task)
* cgroup event are system-wide mode only
*/
if (atomic_read(&__get_cpu_var(perf_cgroup_events)))
- perf_cgroup_sched_in(task);
+ perf_cgroup_sched_in(prev, task);
}
static u64 perf_calculate_period(struct perf_event *event, u64 nsec, u64 count)
@@ -2427,7 +2470,7 @@ static void perf_event_enable_on_exec(struct perf_event_context *ctx)
* ctxswin cgroup events which are already scheduled
* in.
*/
- perf_cgroup_sched_out(current);
+ perf_cgroup_sched_out(current, NULL);
raw_spin_lock(&ctx->lock);
task_ctx_sched_out(ctx);
@@ -3353,8 +3396,8 @@ static int perf_event_index(struct perf_event *event)
}
static void calc_timer_values(struct perf_event *event,
- u64 *running,
- u64 *enabled)
+ u64 *enabled,
+ u64 *running)
{
u64 now, ctx_time;
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index d5a3009da71..dc5114b4c16 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -178,7 +178,7 @@ void irq_shutdown(struct irq_desc *desc)
desc->depth = 1;
if (desc->irq_data.chip->irq_shutdown)
desc->irq_data.chip->irq_shutdown(&desc->irq_data);
- if (desc->irq_data.chip->irq_disable)
+ else if (desc->irq_data.chip->irq_disable)
desc->irq_data.chip->irq_disable(&desc->irq_data);
else
desc->irq_data.chip->irq_mask(&desc->irq_data);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index d5828da3fd3..b57a3776de4 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -29,7 +29,11 @@ void irq_domain_add(struct irq_domain *domain)
*/
for (hwirq = 0; hwirq < domain->nr_irq; hwirq++) {
d = irq_get_irq_data(irq_domain_to_irq(domain, hwirq));
- if (d || d->domain) {
+ if (!d) {
+ WARN(1, "error: assigning domain to non existant irq_desc");
+ return;
+ }
+ if (d->domain) {
/* things are broken; just report, don't clean up */
WARN(1, "error: irq_desc already assigned to a domain");
return;
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 2e9425889fa..9b956fa2030 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1331,7 +1331,6 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
if (!thread_fn)
return -EINVAL;
handler = irq_default_primary_handler;
- irqflags |= IRQF_ONESHOT;
}
action = kzalloc(sizeof(struct irqaction), GFP_KERNEL);
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 58f405b581e..c8008dd58ef 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -250,7 +250,7 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times)
do {
times->utime = cputime_add(times->utime, t->utime);
times->stime = cputime_add(times->stime, t->stime);
- times->sum_exec_runtime += t->se.sum_exec_runtime;
+ times->sum_exec_runtime += task_sched_runtime(t);
} while_each_thread(tsk, t);
out:
rcu_read_unlock();
@@ -312,7 +312,8 @@ static int cpu_clock_sample_group(const clockid_t which_clock,
cpu->cpu = cputime.utime;
break;
case CPUCLOCK_SCHED:
- cpu->sched = thread_group_sched_runtime(p);
+ thread_group_cputime(p, &cputime);
+ cpu->sched = cputime.sum_exec_runtime;
break;
}
return 0;
diff --git a/kernel/printk.c b/kernel/printk.c
index 836a2ae0ac3..28a40d8171b 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1604,7 +1604,7 @@ static int __init printk_late_init(void)
struct console *con;
for_each_console(con) {
- if (con->flags & CON_BOOT) {
+ if (!keep_bootcon && con->flags & CON_BOOT) {
printk(KERN_INFO "turn off boot console %s%d\n",
con->name, con->index);
unregister_console(con);
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 9de3ecfd20f..a70d2a5d8c7 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -744,20 +744,17 @@ int ptrace_request(struct task_struct *child, long request,
break;
si = child->last_siginfo;
- if (unlikely(!si || si->si_code >> 8 != PTRACE_EVENT_STOP))
- break;
-
- child->jobctl |= JOBCTL_LISTENING;
-
- /*
- * If NOTIFY is set, it means event happened between start
- * of this trap and now. Trigger re-trap immediately.
- */
- if (child->jobctl & JOBCTL_TRAP_NOTIFY)
- signal_wake_up(child, true);
-
+ if (likely(si && (si->si_code >> 8) == PTRACE_EVENT_STOP)) {
+ child->jobctl |= JOBCTL_LISTENING;
+ /*
+ * If NOTIFY is set, it means event happened between
+ * start of this trap and now. Trigger re-trap.
+ */
+ if (child->jobctl & JOBCTL_TRAP_NOTIFY)
+ signal_wake_up(child, true);
+ ret = 0;
+ }
unlock_task_sighand(child, &flags);
- ret = 0;
break;
case PTRACE_DETACH: /* detach a process that was attached. */
diff --git a/kernel/resource.c b/kernel/resource.c
index 3b3cedc5259..c8dc249da5c 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -419,6 +419,9 @@ static int __find_resource(struct resource *root, struct resource *old,
else
tmp.end = root->end;
+ if (tmp.end < tmp.start)
+ goto next;
+
resource_clip(&tmp, constraint->min, constraint->max);
arch_remove_reservations(&tmp);
@@ -436,8 +439,10 @@ static int __find_resource(struct resource *root, struct resource *old,
return 0;
}
}
- if (!this)
+
+next: if (!this || this->end == root->end)
break;
+
if (this != old)
tmp.start = this->end + 1;
this = this->sibling;
diff --git a/kernel/sched.c b/kernel/sched.c
index ccacdbdecf4..b50b0f0c9aa 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3065,7 +3065,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev)
#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
local_irq_disable();
#endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */
- perf_event_task_sched_in(current);
+ perf_event_task_sched_in(prev, current);
#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
local_irq_enable();
#endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */
@@ -3725,30 +3725,6 @@ unsigned long long task_sched_runtime(struct task_struct *p)
}
/*
- * Return sum_exec_runtime for the thread group.
- * In case the task is currently running, return the sum plus current's
- * pending runtime that have not been accounted yet.
- *
- * Note that the thread group might have other running tasks as well,
- * so the return value not includes other pending runtime that other
- * running tasks might have.
- */
-unsigned long long thread_group_sched_runtime(struct task_struct *p)
-{
- struct task_cputime totals;
- unsigned long flags;
- struct rq *rq;
- u64 ns;
-
- rq = task_rq_lock(p, &flags);
- thread_group_cputime(p, &totals);
- ns = totals.sum_exec_runtime + do_task_delta_exec(p, rq);
- task_rq_unlock(rq, p, &flags);
-
- return ns;
-}
-
-/*
* Account user cpu time to a process.
* @p: the process that the cpu time gets accounted to
* @cputime: the cpu time spent in user space since the last update
@@ -4279,9 +4255,9 @@ pick_next_task(struct rq *rq)
}
/*
- * schedule() is the main scheduler function.
+ * __schedule() is the main scheduler function.
*/
-asmlinkage void __sched schedule(void)
+static void __sched __schedule(void)
{
struct task_struct *prev, *next;
unsigned long *switch_count;
@@ -4322,16 +4298,6 @@ need_resched:
if (to_wakeup)
try_to_wake_up_local(to_wakeup);
}
-
- /*
- * If we are going to sleep and we have plugged IO
- * queued, make sure to submit it to avoid deadlocks.
- */
- if (blk_needs_flush_plug(prev)) {
- raw_spin_unlock(&rq->lock);
- blk_schedule_flush_plug(prev);
- raw_spin_lock(&rq->lock);
- }
}
switch_count = &prev->nvcsw;
}
@@ -4369,6 +4335,26 @@ need_resched:
if (need_resched())
goto need_resched;
}
+
+static inline void sched_submit_work(struct task_struct *tsk)
+{
+ if (!tsk->state)
+ return;
+ /*
+ * If we are going to sleep and we have plugged IO queued,
+ * make sure to submit it to avoid deadlocks.
+ */
+ if (blk_needs_flush_plug(tsk))
+ blk_schedule_flush_plug(tsk);
+}
+
+asmlinkage void __sched schedule(void)
+{
+ struct task_struct *tsk = current;
+
+ sched_submit_work(tsk);
+ __schedule();
+}
EXPORT_SYMBOL(schedule);
#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
@@ -4435,7 +4421,7 @@ asmlinkage void __sched notrace preempt_schedule(void)
do {
add_preempt_count_notrace(PREEMPT_ACTIVE);
- schedule();
+ __schedule();
sub_preempt_count_notrace(PREEMPT_ACTIVE);
/*
@@ -4463,7 +4449,7 @@ asmlinkage void __sched preempt_schedule_irq(void)
do {
add_preempt_count(PREEMPT_ACTIVE);
local_irq_enable();
- schedule();
+ __schedule();
local_irq_disable();
sub_preempt_count(PREEMPT_ACTIVE);
@@ -5588,7 +5574,7 @@ static inline int should_resched(void)
static void __cond_resched(void)
{
add_preempt_count(PREEMPT_ACTIVE);
- schedule();
+ __schedule();
sub_preempt_count(PREEMPT_ACTIVE);
}
@@ -7443,6 +7429,7 @@ static void __sdt_free(const struct cpumask *cpu_map)
struct sched_domain *sd = *per_cpu_ptr(sdd->sd, j);
if (sd && (sd->flags & SD_OVERLAP))
free_sched_groups(sd->groups, 0);
+ kfree(*per_cpu_ptr(sdd->sd, j));
kfree(*per_cpu_ptr(sdd->sg, j));
kfree(*per_cpu_ptr(sdd->sgp, j));
}
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 97540f0c9e4..af1177858be 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -1050,7 +1050,7 @@ select_task_rq_rt(struct task_struct *p, int sd_flag, int flags)
*/
if (curr && unlikely(rt_task(curr)) &&
(curr->rt.nr_cpus_allowed < 2 ||
- curr->prio < p->prio) &&
+ curr->prio <= p->prio) &&
(p->rt.nr_cpus_allowed > 1)) {
int target = find_lowest_rq(p);
@@ -1581,7 +1581,7 @@ static void task_woken_rt(struct rq *rq, struct task_struct *p)
p->rt.nr_cpus_allowed > 1 &&
rt_task(rq->curr) &&
(rq->curr->rt.nr_cpus_allowed < 2 ||
- rq->curr->prio < p->prio))
+ rq->curr->prio <= p->prio))
push_rt_tasks(rq);
}
diff --git a/kernel/sys.c b/kernel/sys.c
index dd948a1fca4..18ee1d2f647 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -37,6 +37,8 @@
#include <linux/fs_struct.h>
#include <linux/gfp.h>
#include <linux/syscore_ops.h>
+#include <linux/version.h>
+#include <linux/ctype.h>
#include <linux/compat.h>
#include <linux/syscalls.h>
@@ -44,6 +46,8 @@
#include <linux/user_namespace.h>
#include <linux/kmsg_dump.h>
+/* Move somewhere else to avoid recompiling? */
+#include <generated/utsrelease.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -1161,6 +1165,34 @@ DECLARE_RWSEM(uts_sem);
#define override_architecture(name) 0
#endif
+/*
+ * Work around broken programs that cannot handle "Linux 3.0".
+ * Instead we map 3.x to 2.6.40+x, so e.g. 3.0 would be 2.6.40
+ */
+static int override_release(char __user *release, int len)
+{
+ int ret = 0;
+ char buf[len];
+
+ if (current->personality & UNAME26) {
+ char *rest = UTS_RELEASE;
+ int ndots = 0;
+ unsigned v;
+
+ while (*rest) {
+ if (*rest == '.' && ++ndots >= 3)
+ break;
+ if (!isdigit(*rest) && *rest != '.')
+ break;
+ rest++;
+ }
+ v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40;
+ snprintf(buf, len, "2.6.%u%s", v, rest);
+ ret = copy_to_user(release, buf, len);
+ }
+ return ret;
+}
+
SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name)
{
int errno = 0;
@@ -1170,6 +1202,8 @@ SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name)
errno = -EFAULT;
up_read(&uts_sem);
+ if (!errno && override_release(name->release, sizeof(name->release)))
+ errno = -EFAULT;
if (!errno && override_architecture(name))
errno = -EFAULT;
return errno;
@@ -1191,6 +1225,8 @@ SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
error = -EFAULT;
up_read(&uts_sem);
+ if (!error && override_release(name->release, sizeof(name->release)))
+ error = -EFAULT;
if (!error && override_architecture(name))
error = -EFAULT;
return error;
@@ -1225,6 +1261,8 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
if (!error && override_architecture(name))
error = -EFAULT;
+ if (!error && override_release(name->release, sizeof(name->release)))
+ error = -EFAULT;
return error ? -EFAULT : 0;
}
#endif
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 62cbc8877fe..a9a5de07c4f 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -16,7 +16,6 @@ asmlinkage long sys_ni_syscall(void)
return -ENOSYS;
}
-cond_syscall(sys_nfsservctl);
cond_syscall(sys_quotactl);
cond_syscall(sys32_quotactl);
cond_syscall(sys_acct);
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 3b8e028b960..e8bffbe2ba4 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1,6 +1,6 @@
#include <linux/stat.h>
#include <linux/sysctl.h>
-#include "../fs/xfs/linux-2.6/xfs_sysctl.h"
+#include "../fs/xfs/xfs_sysctl.h"
#include <linux/sunrpc/debug.h>
#include <linux/string.h>
#include <net/ip_vs.h>
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 4e4932a7b36..362da653813 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -1,6 +1,6 @@
#include <linux/stat.h>
#include <linux/sysctl.h>
-#include "../fs/xfs/linux-2.6/xfs_sysctl.h"
+#include "../fs/xfs/xfs_sysctl.h"
#include <linux/sunrpc/debug.h>
#include <linux/string.h>
#include <net/ip_vs.h>
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index e19ce1454ee..e66046456f4 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -655,6 +655,7 @@ static struct genl_ops taskstats_ops = {
.cmd = TASKSTATS_CMD_GET,
.doit = taskstats_user_cmd,
.policy = taskstats_cmd_get_policy,
+ .flags = GENL_ADMIN_PERM,
};
static struct genl_ops cgroupstats_ops = {
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 59f369f98a0..ea5e1a928d5 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -441,6 +441,8 @@ static int alarm_timer_create(struct k_itimer *new_timer)
static void alarm_timer_get(struct k_itimer *timr,
struct itimerspec *cur_setting)
{
+ memset(cur_setting, 0, sizeof(struct itimerspec));
+
cur_setting->it_interval =
ktime_to_timespec(timr->it.alarmtimer.period);
cur_setting->it_value =
@@ -479,11 +481,17 @@ static int alarm_timer_set(struct k_itimer *timr, int flags,
if (!rtcdev)
return -ENOTSUPP;
- /* Save old values */
- old_setting->it_interval =
- ktime_to_timespec(timr->it.alarmtimer.period);
- old_setting->it_value =
- ktime_to_timespec(timr->it.alarmtimer.node.expires);
+ /*
+ * XXX HACK! Currently we can DOS a system if the interval
+ * period on alarmtimers is too small. Cap the interval here
+ * to 100us and solve this properly in a future patch! -jstultz
+ */
+ if ((new_setting->it_interval.tv_sec == 0) &&
+ (new_setting->it_interval.tv_nsec < 100000))
+ new_setting->it_interval.tv_nsec = 100000;
+
+ if (old_setting)
+ alarm_timer_get(timr, old_setting);
/* If the timer was already set, cancel it */
alarm_cancel(&timr->it.alarmtimer);
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 24dc60d9fa1..5bbfac85866 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -78,6 +78,7 @@ void bacct_add_tsk(struct taskstats *stats, struct task_struct *tsk)
#define KB 1024
#define MB (1024*KB)
+#define KB_MASK (~(KB-1))
/*
* fill in extended accounting fields
*/
@@ -95,14 +96,14 @@ void xacct_add_tsk(struct taskstats *stats, struct task_struct *p)
stats->hiwater_vm = get_mm_hiwater_vm(mm) * PAGE_SIZE / KB;
mmput(mm);
}
- stats->read_char = p->ioac.rchar;
- stats->write_char = p->ioac.wchar;
- stats->read_syscalls = p->ioac.syscr;
- stats->write_syscalls = p->ioac.syscw;
+ stats->read_char = p->ioac.rchar & KB_MASK;
+ stats->write_char = p->ioac.wchar & KB_MASK;
+ stats->read_syscalls = p->ioac.syscr & KB_MASK;
+ stats->write_syscalls = p->ioac.syscw & KB_MASK;
#ifdef CONFIG_TASK_IO_ACCOUNTING
- stats->read_bytes = p->ioac.read_bytes;
- stats->write_bytes = p->ioac.write_bytes;
- stats->cancelled_write_bytes = p->ioac.cancelled_write_bytes;
+ stats->read_bytes = p->ioac.read_bytes & KB_MASK;
+ stats->write_bytes = p->ioac.write_bytes & KB_MASK;
+ stats->cancelled_write_bytes = p->ioac.cancelled_write_bytes & KB_MASK;
#else
stats->read_bytes = 0;
stats->write_bytes = 0;
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 25fb1b0e53f..1783aabc612 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -2412,8 +2412,13 @@ reflush:
for_each_cwq_cpu(cpu, wq) {
struct cpu_workqueue_struct *cwq = get_cwq(cpu, wq);
+ bool drained;
- if (!cwq->nr_active && list_empty(&cwq->delayed_works))
+ spin_lock_irq(&cwq->gcwq->lock);
+ drained = !cwq->nr_active && list_empty(&cwq->delayed_works);
+ spin_unlock_irq(&cwq->gcwq->lock);
+
+ if (drained)
continue;
if (++flush_cnt == 10 ||
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-12 20:02:15 +0000