Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore

[PATCH 0/11] introduce down_write_killable for rw_semaphore · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 01/11] locking, rwsem: get rid of __down_write_nested · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 02/11] locking, rwsem: drop explicit memory barriers · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 05/11] ia64, rwsem: provide __down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 08/11] sparc, rwsem: provide __down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 07/11] sh, rwsem: provide __down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 06/11] s390, rwsem: provide __down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 11/11] locking, rwsem: provide down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 10/11] x86, rwsem: provide __down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 09/11] xtensa, rwsem: provide __down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 04/11] alpha, rwsem: provide __down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
[PATCH 03/11] locking, rwsem: introduce basis for down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-02-29
Re: [PATCH 03/11] locking, rwsem: introduce basis for down_write_killable · Peter Zijlstra <peterz@infradead.org> · 2016-03-30
Re: [PATCH 03/11] locking, rwsem: introduce basis for down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-03-31
Re: [PATCH 03/11] locking, rwsem: introduce basis for down_write_killable · Peter Zijlstra <peterz@infradead.org> · 2016-03-31
[PATCH] locking, rwsem: introduce basis for down_write_killable · Michal Hocko <mhocko@kernel.org> · 2016-03-31
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Peter Zijlstra <peterz@infradead.org> · 2016-03-30
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Michal Hocko <mhocko@kernel.org> · 2016-03-31
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Ingo Molnar <mingo@kernel.org> · 2016-03-31
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Michal Hocko <mhocko@kernel.org> · 2016-03-31
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Andrew Morton <akpm@linux-foundation.org> · 2016-03-31
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Ingo Molnar <mingo@kernel.org> · 2016-04-01
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Michal Hocko <mhocko@kernel.org> · 2016-04-01
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Ingo Molnar <mingo@kernel.org> · 2016-04-01
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Michal Hocko <mhocko@kernel.org> · 2016-04-01
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Michal Hocko <mhocko@kernel.org> · 2016-04-01
Re: [PATCH 0/11] introduce down_write_killable for rw_semaphore · Andrew Morton <akpm@linux-foundation.org> · 2016-04-01

From: Peter Zijlstra <peterz@infradead.org>
Date: 2016-03-30 13:32:24
Also in: linux-arch, linux-s390, linux-sh, lkml, sparclinux

On Mon, Feb 29, 2016 at 01:58:14PM +0100, Michal Hocko wrote:

I have tested on x86 with OOM situations with high mmap_sem contention
(basically many parallel page faults racing with many parallel mmap/munmap
tight loops) so the waiters for the write locks are routinely interrupted
by SIGKILL.

Aside from the one niggle (as per the other email) they look good to me
and I would take them through the tip/locking tree.

Thanks!

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