diff options
| author | Mel Gorman <mel@csn.ul.ie> | 2011-01-13 15:45:43 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-07 15:05:21 -0800 |
| commit | 776be4763c7ece9b738c5a61bec68bc05b1b2d1c (patch) | |
| tree | e7a56436ebd890216a341c8b5cc3eed5932c2361 /drivers | |
| parent | 176111faba2c5785d40b4737908b855de75f026c (diff) | |
mm: vmstat: use a single setter function and callback for adjusting percpu thresholds
commit b44129b30652c8771db2265939bb8b463724043d upstream.
reduce_pgdat_percpu_threshold() and restore_pgdat_percpu_threshold() exist
to adjust the per-cpu vmstat thresholds while kswapd is awake to avoid
errors due to counter drift. The functions duplicate some code so this
patch replaces them with a single set_pgdat_percpu_threshold() that takes
a callback function to calculate the desired threshold as a parameter.
[akpm@linux-foundation.org: readability tweak]
[kosaki.motohiro@jp.fujitsu.com: set_pgdat_percpu_threshold(): don't use for_each_online_cpu]
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Christoph Lameter <cl@linux.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions