lkml.org 
[lkml]   [2018]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 1/4] fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb()
On Tue, Sep 11, 2018 at 03:18:23PM -0400, Waiman Long wrote:
> The nr_dentry_unused per-cpu counter tracks dentries in both the
> LRU lists and the shrink lists where the DCACHE_LRU_LIST bit is set.
> The shrink_dcache_sb() function moves dentries from the LRU list to a
> shrink list and subtracts the dentry count from nr_dentry_unused. This
> is incorrect as the nr_dentry_unused count Will also be decremented in
> shrink_dentry_list() via d_shrink_del(). To fix this double decrement,
> the decrement in the shrink_dcache_sb() function is taken out.
>
> Fixes: 4e717f5c1083 ("list_lru: remove special case function list_lru_dispose_all."
>
> Signed-off-by: Waiman Long <longman@redhat.com>

Please add a stable tag for this.

Otherwise looks fine.

Reviewed-by: Dave Chinner <dchinner@redhat.com>

--
Dave Chinner
david@fromorbit.com

\
 
 \ /
  Last update: 2018-09-12 00:03    [W:0.118 / U:0.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site