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authorFrederic Weisbecker <fweisbec@gmail.com>2015-09-04 15:45:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 16:54:41 -0700
commit230ec93909f00678401cb2d63b8b95f1dea68e40 (patch)
tree1eb01a44e0d66d76306f598d595a4bdaccd21b64 /kernel/watchdog.c
parent3dd08c0c918f9bf058572ddbf26e7d6fb5674a5c (diff)
smpboot: allow passing the cpumask on per-cpu thread registration
It makes the registration cheaper and simpler for the smpboot per-cpu kthread users that don't need to always update the cpumask after threads creation. [sfr@canb.auug.org.au: fix for allow passing the cpumask on per-cpu thread registration] Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Reviewed-by: Chris Metcalf <cmetcalf@ezchip.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ulrich Obergfell <uobergfe@redhat.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/watchdog.c')
-rw-r--r--kernel/watchdog.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index a6ffa43f2993..e5bb86fb0ea5 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -713,15 +713,12 @@ static int watchdog_enable_all_cpus(void)
int err = 0;
if (!watchdog_running) {
- err = smpboot_register_percpu_thread(&watchdog_threads);
+ err = smpboot_register_percpu_thread_cpumask(&watchdog_threads,
+ &watchdog_cpumask);
if (err)
pr_err("Failed to create watchdog threads, disabled\n");
- else {
- if (smpboot_update_cpumask_percpu_thread(
- &watchdog_threads, &watchdog_cpumask))
- pr_err("Failed to set cpumask for watchdog threads\n");
+ else
watchdog_running = 1;
- }
} else {
/*
* Enable/disable the lockup detectors or