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| author | Ulrich Obergfell <uobergfe@redhat.com> | 2015-09-04 15:45:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-04 16:54:41 -0700 |
| commit | 8c073d27d7ad293bf734cc8475689413afadab81 (patch) | |
| tree | 335ed5a8c2b0e82cf6d3554d31cafc6dc4f77e48 /include/linux/nmi.h | |
| parent | 81a4beef91ba4a9e8ad6054ca9933dff7e25ff28 (diff) | |
| download | linux-8c073d27d7ad293bf734cc8475689413afadab81.tar.gz linux-8c073d27d7ad293bf734cc8475689413afadab81.tar.bz2 linux-8c073d27d7ad293bf734cc8475689413afadab81.zip | |
watchdog: introduce watchdog_suspend() and watchdog_resume()
This interface can be utilized to deactivate the hard and soft lockup
detector temporarily. Callers are expected to minimize the duration of
deactivation. Multiple deactivations are allowed to occur in parallel but
should be rare in practice.
[akpm@linux-foundation.org: remove unneeded static initialization]
Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Reviewed-by: Aaron Tomlin <atomlin@redhat.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Stephane Eranian <eranian@google.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/nmi.h')
| -rw-r--r-- | include/linux/nmi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/nmi.h b/include/linux/nmi.h index 088714537d10..e9f213c337bb 100644 --- a/include/linux/nmi.h +++ b/include/linux/nmi.h @@ -82,6 +82,8 @@ extern int proc_watchdog_thresh(struct ctl_table *, int , void __user *, size_t *, loff_t *); extern int proc_watchdog_cpumask(struct ctl_table *, int, void __user *, size_t *, loff_t *); +extern int watchdog_suspend(void); +extern void watchdog_resume(void); #endif #ifdef CONFIG_HAVE_ACPI_APEI_NMI |