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| author | Frederic Weisbecker <frederic@kernel.org> | 2017-10-27 04:42:35 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-10-27 09:55:29 +0200 |
| commit | de201559df872f83d0c08fb4effe3efd28e6cbc8 (patch) | |
| tree | 6d23d89a604b67b2cb1d216515f4ce4ab3cd9f41 /kernel/watchdog.c | |
| parent | 5c4991e24c69737bd41fc2737b1e3980abbf73f9 (diff) | |
| download | lwn-de201559df872f83d0c08fb4effe3efd28e6cbc8.tar.gz lwn-de201559df872f83d0c08fb4effe3efd28e6cbc8.zip | |
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.c | 3 |
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; |