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| author | John Siddle <jsiddle@redhat.com> | 2016-10-11 13:55:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-11 15:06:33 -0700 |
| commit | 48a6d64edadbd40fa5185a890023e9b331d64a48 (patch) | |
| tree | c17f8328ae55c248cb02d434ff57f355028aa3ca /kernel/membarrier.c | |
| parent | e154ccc831b5b52a9aa3fe881090bdaf1d80f062 (diff) | |
| download | linux-48a6d64edadbd40fa5185a890023e9b331d64a48.tar.gz linux-48a6d64edadbd40fa5185a890023e9b331d64a48.tar.bz2 linux-48a6d64edadbd40fa5185a890023e9b331d64a48.zip | |
hung_task: allow hung_task_panic when hung_task_warnings is 0
Previously hung_task_panic would not be respected if enabled after
hung_task_warnings had already been decremented to 0.
Permit the kernel to panic if hung_task_panic is enabled after
hung_task_warnings has already been decremented to 0 and another task
hangs for hung_task_timeout_secs seconds.
Check if hung_task_panic is enabled so we don't return prematurely, and
check if hung_task_warnings is non-zero so we don't print the warning
unnecessarily.
[akpm@linux-foundation.org: fix off-by-one]
Link: http://lkml.kernel.org/r/1473450214-4049-1-git-send-email-jsiddle@redhat.com
Signed-off-by: John Siddle <jsiddle@redhat.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/membarrier.c')
0 files changed, 0 insertions, 0 deletions