path: root/arch/s390/include/asm/topology.h
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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-21 18:26:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-21 18:26:54 -0700
commitbcee19f424a0d8c26ecf2607b73c690802658b29 (patch)
treec7de7e708d62c3cf0d5542f2a29d486f9d66eeda /arch/s390/include/asm/topology.h
parentac2fc4b9d5b7d8e4878c6f04f947d42707f782ef (diff)
parent0c986253b939cc14c69d4adbe2b4121bdf4aa220 (diff)
Merge branch 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo: "The threadgroup locking changes which went in during 4.2 devel cycle added write locking of a percpu_rwsem in cgroup task migration path; unfortunately, that involved expedited rcu syncing which turned out to be too slow and heavy for certain workloads. The patchset which is dependent on this one didn't get committed during that devel cycle, so these two patches can be reverted safely. Oleg reworked percpu_rwsem for 4.4 so that the writer path is a lot lighter. The reported issue goes away with Oleg's reworked percpu_rwsem and I'll reapply these patches on the for-4.4 branch so that they can land together with Oleg's changes" * 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: Revert "sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem" Revert "cgroup: simplify threadgroup locking"
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