]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/commit
hung_task: allow hung_task_panic when hung_task_warnings is 0
authorJohn Siddle <jsiddle@redhat.com>
Tue, 11 Oct 2016 20:55:56 +0000 (13:55 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 11 Oct 2016 22:06:33 +0000 (15:06 -0700)
commit48a6d64edadbd40fa5185a890023e9b331d64a48
treec17f8328ae55c248cb02d434ff57f355028aa3ca
parente154ccc831b5b52a9aa3fe881090bdaf1d80f062
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>
kernel/hung_task.c