From: Ulrich Obergfell <uobergfe@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, dzickus@redhat.com,
atomlin@redhat.com, uobergfe@redhat.com
Subject: [PATCH 4/5] watchdog: implement error handling in lockup_detector_suspend()
Date: Mon, 28 Sep 2015 22:44:11 +0200 [thread overview]
Message-ID: <1443473052-3053-5-git-send-email-uobergfe@redhat.com> (raw)
In-Reply-To: <1443473052-3053-1-git-send-email-uobergfe@redhat.com>
lockup_detector_suspend() now handles errors from watchdog_park_threads().
Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
---
kernel/watchdog.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 457113c..3bc22a9 100644
--- a/kernel/watchdog.c
+++ b/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);
--
1.7.11.7
next prev parent reply other threads:[~2015-09-28 20:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-28 20:44 [PATCH 0/5] improve handling of errors returned by kthread_park() Ulrich Obergfell
2015-09-28 20:44 ` [PATCH 1/5] watchdog: fix error handling in proc_watchdog_thresh() Ulrich Obergfell
2015-09-29 6:39 ` Aaron Tomlin
2015-09-28 20:44 ` [PATCH 2/5] watchdog: move watchdog_disable_all_cpus() outside of ifdef Ulrich Obergfell
2015-09-29 6:40 ` Aaron Tomlin
2015-09-29 23:37 ` Andrew Morton
2015-09-28 20:44 ` [PATCH 3/5] watchdog: implement error handling in update_watchdog_all_cpus() and callers Ulrich Obergfell
2015-09-29 6:40 ` Aaron Tomlin
2015-09-28 20:44 ` Ulrich Obergfell [this message]
2015-09-29 6:41 ` [PATCH 4/5] watchdog: implement error handling in lockup_detector_suspend() Aaron Tomlin
2015-09-28 20:44 ` [PATCH 5/5] watchdog: do not unpark threads in watchdog_park_threads() on error Ulrich Obergfell
2015-09-29 6:41 ` Aaron Tomlin
2015-09-29 23:30 ` [PATCH 0/5] improve handling of errors returned by kthread_park() Andrew Morton
2015-09-30 10:54 ` Ulrich Obergfell
2015-10-12 21:13 ` Don Zickus
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