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| author | Hillf Danton | 2012-03-22 00:34:00 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2012-03-22 01:54:57 +0100 |
| commit | 28073b02bfaaed1e3278acfb8e6e7c9f76d9f2b6 (patch) | |
| tree | 54ab2952e2bee85780438a011cf5c1f198ff3dd9 /mm/rmap.c | |
| parent | mm: vmscan: forcibly scan highmem if there are too many buffer_heads pinning ... (diff) | |
| download | kernel-qcow2-linux-28073b02bfaaed1e3278acfb8e6e7c9f76d9f2b6.tar.gz kernel-qcow2-linux-28073b02bfaaed1e3278acfb8e6e7c9f76d9f2b6.tar.xz kernel-qcow2-linux-28073b02bfaaed1e3278acfb8e6e7c9f76d9f2b6.zip | |
mm: hugetlb: defer freeing pages when gathering surplus pages
When gathering surplus pages, the number of needed pages is recomputed
after reacquiring hugetlb lock to catch changes in resv_huge_pages and
free_huge_pages. Plus it is recomputed with the number of newly allocated
pages involved.
Thus freeing pages can be deferred a bit to see if the final page request
is satisfied, though pages could be allocated less than needed.
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/rmap.c')
0 files changed, 0 insertions, 0 deletions