On Wed, Jan 06, 2016 at 10:48:15AM -0800, tip-bot for Peter Zijlstra wrote: > Commit-ID: be958bdc96f18bc1356177bbb79d46ea0c037b96 > Gitweb: http://git.kernel.org/tip/be958bdc96f18bc1356177bbb79d46ea0c037b96 > Author: Peter Zijlstra <[email protected]> > AuthorDate: Wed, 25 Nov 2015 16:02:07 +0100 > Committer: Ingo Molnar <[email protected]> > CommitDate: Wed, 6 Jan 2016 11:01:07 +0100 > > sched/core: Fix unserialized r-m-w scribbling stuff > > Some of the sched bitfieds (notably sched_reset_on_fork) can be set > on other than current, this can cause the r-m-w to race with other > updates. > > Since all the sched bits are serialized by scheduler locks, pull them > in a separate word. > > Reported-by: Tejun Heo <[email protected]> > Signed-off-by: Peter Zijlstra (Intel) <[email protected]> > Cc: Dmitry Vyukov <[email protected]> > Cc: Linus Torvalds <[email protected]> > Cc: Peter Zijlstra <[email protected]> > Cc: Sasha Levin <[email protected]> > Cc: Thomas Gleixner <[email protected]> > Cc: [email protected] > Cc: [email protected] > Cc: [email protected] > Cc: [email protected] > Link: > http://lkml.kernel.org/r/[email protected] > Signed-off-by: Ingo Molnar <[email protected]>
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