diff options
| author | Christoph Lameter <cl@linux.com> | 2016-05-21 02:58:21 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-21 03:58:30 +0300 |
| commit | 7b8da4c7f0777489f8690115b5fd7704ac0abb8f (patch) | |
| tree | 0d150de8fb6406d48ab505e5fb012a1880470b6e /fs/xfs/xfs_buf.c | |
| parent | 51038171b7ecf0017fbe3e06bd246eaa26f4d2e7 (diff) | |
| download | linux-7b8da4c7f0777489f8690115b5fd7704ac0abb8f.tar.xz | |
vmstat: get rid of the ugly cpu_stat_off variable
The cpu_stat_off variable is unecessary since we can check if a
workqueue request is pending otherwise. Removal of cpu_stat_off makes
it pretty easy for the vmstat shepherd to ensure that the proper things
happen.
Removing the state also removes all races related to it. Should a
workqueue not be scheduled as needed for vmstat_update then the shepherd
will notice and schedule it as needed. Should a workqueue be
unecessarily scheduled then the vmstat updater will disable it.
[akpm@linux-foundation.org: fix indentation, per Michal]
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1605061306460.17934@east.gentwo.org
Signed-off-by: Christoph Lameter <cl@linux.com>
Cc: Tejun Heo <htejun@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/xfs/xfs_buf.c')
0 files changed, 0 insertions, 0 deletions