diff options
| author | Cong Wang <xiyou.wangcong@gmail.com> | 2015-06-24 12:41:47 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-06 14:15:08 +0200 |
| commit | d49db342f0e276b354383b3281c5668b6b80f5c2 (patch) | |
| tree | 646345871947652187cedb234ee08ffb2ef4974e /fs/proc | |
| parent | 1c4c7159ed2468f3ac4ce5a7f08d79663d381a93 (diff) | |
| download | linux-d49db342f0e276b354383b3281c5668b6b80f5c2.tar.bz2 | |
sched/fair: Test list head instead of list entry in throttle_cfs_rq()
According to the comments, we need to test if this is
the first throttled task, however, list_empty() tests on
the entry cfs_rq->throttled_list, not the head, this is wrong.
This is a bug because we don't re-init the list entry after
removing it from the list, so list_empty() could return false
even if the list is really empty.
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ben Segall <bsegall@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1435174907-432-1-git-send-email-xiyou.wangcong@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/proc')
0 files changed, 0 insertions, 0 deletions