The patch titled
Subject: watchdog: implement error handling in lockup_detector_suspend()
has been added to the -mm tree. Its filename is
watchdog-implement-error-handling-in-lockup_detector_suspend.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/watchdog-implement-error-handling-in-lockup_detector_suspend.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/watchdog-implement-error-handling-in-lockup_detector_suspend.patch
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------------------------------------------------------
From: Ulrich Obergfell <uobergfe@xxxxxxxxxx>
Subject: watchdog: implement error handling in lockup_detector_suspend()
lockup_detector_suspend() now handles errors from watchdog_park_threads().
Signed-off-by: Ulrich Obergfell <uobergfe@xxxxxxxxxx>
Reviewed-by: Aaron Tomlin <atomlin@xxxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Ulrich Obergfell <uobergfe@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/watchdog.c | 5 +++++
1 file changed, 5 insertions(+)
diff -puN kernel/watchdog.c~watchdog-implement-error-handling-in-lockup_detector_suspend kernel/watchdog.c
--- a/kernel/watchdog.c~watchdog-implement-error-handling-in-lockup_detector_suspend
+++ a/kernel/watchdog.c
@@ -707,6 +707,11 @@ int lockup_detector_suspend(void)
if (ret == 0)
watchdog_suspended++;
+ else {
+ watchdog_disable_all_cpus();
+ pr_err("Failed to suspend lockup detectors, disabled\n");
+ watchdog_enabled = 0;
+ }
mutex_unlock(&watchdog_proc_mutex);
_
Patches currently in -mm which might be from uobergfe@xxxxxxxxxx are
watchdog-fix-error-handling-in-proc_watchdog_thresh.patch
watchdog-move-watchdog_disable_all_cpus-outside-of-ifdef.patch
watchdog-implement-error-handling-in-update_watchdog_all_cpus-and-callers.patch
watchdog-implement-error-handling-in-lockup_detector_suspend.patch
watchdog-do-not-unpark-threads-in-watchdog_park_threads-on-error.patch
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