lkml.org 
[lkml]   [2016]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 10/18] vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
From
Date
On 02/29/2016 02:26 PM, Michal Hocko wrote:
> From: Michal Hocko <mhocko@suse.com>
>
> most architectures are relying on mmap_sem for write in their
> arch_setup_additional_pages. If the waiting task gets killed by the oom
> killer it would block oom_reaper from asynchronous address space reclaim
> and reduce the chances of timely OOM resolving. Wait for the lock in
> the killable mode and return with EINTR if the task got killed while
> waiting.
>
> Cc: linux-arch@vger.kernel.org
> Cc: Andy Lutomirski <luto@amacapital.net>
> Signed-off-by: Michal Hocko <mhocko@suse.com>


I don't have much arch-specific insight, but looks OK.

Acked-by: Vlastimil Babka <vbabka@suse.cz>

\
 
 \ /
  Last update: 2016-03-11 13:01    [W:0.426 / U:0.428 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site