https://github.com/torvalds/linux
Revision 6111da3432b10b2c56a21a5d8671aee46435326d authored by Linus Torvalds on 27 September 2014, 23:45:33 UTC, committed by Linus Torvalds on 27 September 2014, 23:45:33 UTC
Pull cgroup fixes from Tejun Heo:
 "This is quite late but these need to be backported anyway.

  This is the fix for a long-standing cpuset bug which existed from
  2009.  cpuset makes use of PF_SPREAD_{PAGE|SLAB} flags to modify the
  task's memory allocation behavior according to the settings of the
  cpuset it belongs to; unfortunately, when those flags have to be
  changed, cpuset did so directly even whlie the target task is running,
  which is obviously racy as task->flags may be modified by the task
  itself at any time.  This obscure bug manifested as corrupt
  PF_USED_MATH flag leading to a weird crash.

  The bug is fixed by moving the flag to task->atomic_flags.  The first
  two are prepatory ones to help defining atomic_flags accessors and the
  third one is the actual fix"

* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags
  sched: add macros to define bitops for task atomic flags
  sched: fix confusing PFA_NO_NEW_PRIVS constant
2 parent s 8369289 + 2ad654b
History
Tip revision: 6111da3432b10b2c56a21a5d8671aee46435326d authored by Linus Torvalds on 27 September 2014, 23:45:33 UTC
Merge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Tip revision: 6111da3
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unaligned-memory-access.txt -rw-r--r-- 10.4 KB
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vgaarbiter.txt -rw-r--r-- 8.1 KB
video-output.txt -rw-r--r-- 1.1 KB
vme_api.txt -rw-r--r-- 13.2 KB
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workqueue.txt -rw-r--r-- 14.7 KB
ww-mutex-design.txt -rw-r--r-- 12.4 KB
xz.txt -rw-r--r-- 5.7 KB
zorro.txt -rw-r--r-- 2.9 KB

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