lkml.org 
[lkml]   [2015]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH -next] locking/rwsem: don't spin in heavy contention
From
On Sat, Mar 7, 2015 at 5:54 AM, Dave Chinner <david@fromorbit.com> wrote:
>
> If you're getting stuff there, I'd be looking for a bug in ext4, not
> the rwsem code. There's no way there should be enough unwritten
> extent conversion pending to lock up the system for that length of
> time. Especially considering the test has concurrent truncates

The time is taken for spinning rwsem, so it is really a rwsem problem,
and Jason Low has posted one patch to fix it.

Thanks,
Ming Lei


\
 
 \ /
  Last update: 2015-03-07 13:01    [W:0.052 / U:0.364 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site