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| author | Mel Gorman <mel@csn.ul.ie> | 2009-06-17 00:32:13 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-17 04:47:35 +0200 |
| commit | f2260e6b1f4eba0f5b5906795117791b5c660154 (patch) | |
| tree | 0faa8ce5fb0875835142e6ff3928b2ce076b4874 /block/ioctl.c | |
| parent | page allocator: use allocation flags as an index to the zone watermark (diff) | |
| download | linux-f2260e6b1f4eba0f5b5906795117791b5c660154.tar.xz linux-f2260e6b1f4eba0f5b5906795117791b5c660154.zip | |
page allocator: update NR_FREE_PAGES only as necessary
When pages are being freed to the buddy allocator, the zone NR_FREE_PAGES
counter must be updated. In the case of bulk per-cpu page freeing, it's
updated once per page. This retouches cache lines more than necessary.
Update the counters one per per-cpu bulk free.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block/ioctl.c')
0 files changed, 0 insertions, 0 deletions