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| author | Mel Gorman <mgorman@suse.de> | 2012-10-08 16:32:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:22:48 +0900 |
| commit | 3cc668f4e30fbd97b3c0574d8cac7a83903c9bc7 (patch) | |
| tree | 851c570e1af7c3c888d7106d3942ab861039b3b9 /mm/percpu-vm.c | |
| parent | e64c5237cf6ff474cb2f3f832f48f2b441dd9979 (diff) | |
| download | linux-3cc668f4e30fbd97b3c0574d8cac7a83903c9bc7.tar.bz2 | |
mm: compaction: move fatal signal check out of compact_checklock_irqsave
Commit c67fe3752abe ("mm: compaction: Abort async compaction if locks
are contended or taking too long") addressed a lock contention problem
in compaction by introducing compact_checklock_irqsave() that effecively
aborting async compaction in the event of compaction.
To preserve existing behaviour it also moved a fatal_signal_pending()
check into compact_checklock_irqsave() but that is very misleading. It
"hides" the check within a locking function but has nothing to do with
locking as such. It just happens to work in a desirable fashion.
This patch moves the fatal_signal_pending() check to
isolate_migratepages_range() where it belongs. Arguably the same check
should also happen when isolating pages for freeing but it's overkill.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Shaohua Li <shli@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
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/percpu-vm.c')
0 files changed, 0 insertions, 0 deletions