Commit-ID: 50e8101e1924460ad9349ba13782d64ce034a64f
Gitweb: https://git.kernel.org/tip/50e8101e1924460ad9349ba13782d64ce034a64f
Author: Frederic Weisbecker <frederic@xxxxxxxxxx>
AuthorDate: Tue, 24 Oct 2017 15:06:51 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 24 Oct 2017 15:20:13 +0200
watchdog: Use housekeeping_cpumask() instead of ad-hoc version
While trying to disable the watchog on nohz_full CPUs, the watchdog
implements an ad-hoc version of housekeeping_cpumask(). Lets replace
those re-invented lines.
Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Cc: Chris Metcalf <cmetcalf@xxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Luiz Capitulino <lcapitulino@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Wanpeng Li <kernellwp@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1508850421-10058-3-git-send-email-frederic@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/watchdog.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index d71eee0..3ddce04 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -774,15 +774,10 @@ int proc_watchdog_cpumask(struct ctl_table *table, int write,
void __init lockup_detector_init(void)
{
-#ifdef CONFIG_NO_HZ_FULL
- if (tick_nohz_full_enabled()) {
+ if (tick_nohz_full_enabled())
pr_info("Disabling watchdog on nohz_full cores by default\n");
- cpumask_copy(&watchdog_cpumask, housekeeping_mask);
- } else
- cpumask_copy(&watchdog_cpumask, cpu_possible_mask);
-#else
- cpumask_copy(&watchdog_cpumask, cpu_possible_mask);
-#endif
+
+ cpumask_copy(&watchdog_cpumask, housekeeping_cpumask());
if (!watchdog_nmi_probe())
nmi_watchdog_available = true;
--
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