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authorFrederic Weisbecker <frederic@kernel.org>2017-10-27 04:42:35 +0200
committerIngo Molnar <mingo@kernel.org>2017-10-27 09:55:29 +0200
commitde201559df872f83d0c08fb4effe3efd28e6cbc8 (patch)
tree6d23d89a604b67b2cb1d216515f4ce4ab3cd9f41 /kernel/watchdog.c
parent5c4991e24c69737bd41fc2737b1e3980abbf73f9 (diff)
downloadlinux-de201559df872f83d0c08fb4effe3efd28e6cbc8.tar.bz2
sched/isolation: Introduce housekeeping flags
Before we implement isolcpus under housekeeping, we need the isolation features to be more finegrained. For example some people want NOHZ_FULL without the full scheduler isolation, others want full scheduler isolation without NOHZ_FULL. So let's cut all these isolation features piecewise, at the risk of overcutting it right now. We can still merge some flags later if they always make sense together. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Christoph Lameter <cl@linux.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luiz Capitulino <lcapitulino@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Wanpeng Li <kernellwp@gmail.com> Link: http://lkml.kernel.org/r/1509072159-31808-9-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/watchdog.c')
-rw-r--r--kernel/watchdog.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 562652c9c815..e9e2ebb3db29 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -777,7 +777,8 @@ void __init lockup_detector_init(void)
if (tick_nohz_full_enabled())
pr_info("Disabling watchdog on nohz_full cores by default\n");
- cpumask_copy(&watchdog_cpumask, housekeeping_cpumask());
+ cpumask_copy(&watchdog_cpumask,
+ housekeeping_cpumask(HK_FLAG_TIMER));
if (!watchdog_nmi_probe())
nmi_watchdog_available = true;