The patch titled
Subject: kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix
has been added to the -mm tree. Its filename is
kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix
s/park_in_progress/watchdog_park_in_progress/
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Ulrich Obergfell <uobergfe@xxxxxxxxxx>
Cc: Aaron Tomlin <atomlin@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/nmi.h | 2 +-
kernel/watchdog.c | 8 ++++----
kernel/watchdog_hld.c | 2 +-
3 files changed, 6 insertions(+), 6 deletions(-)
diff -puN include/linux/nmi.h~kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix include/linux/nmi.h
--- a/include/linux/nmi.h~kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix
+++ a/include/linux/nmi.h
@@ -110,7 +110,7 @@ extern int watchdog_user_enabled;
extern int watchdog_thresh;
extern unsigned long watchdog_enabled;
extern unsigned long *watchdog_cpumask_bits;
-extern atomic_t park_in_progress;
+extern atomic_t watchdog_park_in_progress;
#ifdef CONFIG_SMP
extern int sysctl_softlockup_all_cpu_backtrace;
extern int sysctl_hardlockup_all_cpu_backtrace;
diff -puN kernel/watchdog.c~kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix kernel/watchdog.c
--- a/kernel/watchdog.c~kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix
+++ a/kernel/watchdog.c
@@ -49,7 +49,7 @@ unsigned long *watchdog_cpumask_bits = c
#define for_each_watchdog_cpu(cpu) \
for_each_cpu_and((cpu), cpu_online_mask, &watchdog_cpumask)
-atomic_t park_in_progress = ATOMIC_INIT(0);
+atomic_t watchdog_park_in_progress = ATOMIC_INIT(0);
/*
* The 'watchdog_running' variable is set to 1 when the watchdog threads
@@ -262,7 +262,7 @@ static enum hrtimer_restart watchdog_tim
int duration;
int softlockup_all_cpu_backtrace = sysctl_softlockup_all_cpu_backtrace;
- if (atomic_read(&park_in_progress) != 0)
+ if (atomic_read(&watchdog_park_in_progress) != 0)
return HRTIMER_NORESTART;
/* kick the hardlockup detector */
@@ -472,7 +472,7 @@ static int watchdog_park_threads(void)
{
int cpu, ret = 0;
- atomic_set(&park_in_progress, 1);
+ atomic_set(&watchdog_park_in_progress, 1);
for_each_watchdog_cpu(cpu) {
ret = kthread_park(per_cpu(softlockup_watchdog, cpu));
@@ -480,7 +480,7 @@ static int watchdog_park_threads(void)
break;
}
- atomic_set(&park_in_progress, 0);
+ atomic_set(&watchdog_park_in_progress, 0);
return ret;
}
diff -puN kernel/watchdog_hld.c~kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix kernel/watchdog_hld.c
--- a/kernel/watchdog_hld.c~kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix
+++ a/kernel/watchdog_hld.c
@@ -84,7 +84,7 @@ static void watchdog_overflow_callback(s
/* Ensure the watchdog never gets throttled */
event->hw.interrupts = 0;
- if (atomic_read(&park_in_progress) != 0)
+ if (atomic_read(&watchdog_park_in_progress) != 0)
return;
if (__this_cpu_read(watchdog_nmi_touch) == true) {
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
i-need-old-gcc.patch
arm-arch-arm-include-asm-pageh-needs-personalityh.patch
ocfs2-old-mle-put-and-release-after-the-function-dlm_add_migration_mle-called-fix.patch
kernel-watchdog-prevent-false-hardlockup-on-overloaded-system-fix.patch
mm.patch
linux-next-git-rejects.patch
reimplement-idr-and-ida-using-the-radix-tree-support-storing-null-in-the-idr-checkpatch-fixes.patch
kernel-forkc-export-kernel_thread-to-modules.patch
slab-leaks3-default-y.patch
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