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 <peterz@xxxxxxxxxxxxx> > AuthorDate: Wed, 25 Nov 2015 16:02:07 +0100 > Committer: Ingo Molnar <mingo@xxxxxxxxxx> > 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 <tj@xxxxxxxxxx> > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> > Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> > Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Cc: Sasha Levin <sasha.levin@xxxxxxxxxx> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: akpm@xxxxxxxxxxxxxxxxxxxx > Cc: hannes@xxxxxxxxxxx > Cc: mhocko@xxxxxxxxxx > Cc: vdavydov@xxxxxxxxxxxxx > Link: http://lkml.kernel.org/r/20151125150207.GM11639@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> cc stable? -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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