diff options
| author | Mel Gorman <[email protected]> | 2012-10-19 13:56:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2012-10-19 14:07:47 -0700 |
| commit | 0db63d7e25f96e2c6da925c002badf6f144ddf30 (patch) | |
| tree | cf07c0f992a98cdaabac9bc7415f433ee8bbfdf4 | |
| parent | bac716966094e39c8027428993a57b79f2dd6c97 (diff) | |
mm: compaction: correct the nr_strict va isolated check for CMA
Thierry reported that the "iron out" patch for isolate_freepages_block()
had problems due to the strict check being too strict with "mm:
compaction: Iron out isolate_freepages_block() and
isolate_freepages_range() -fix1". It's possible that more pages than
necessary are isolated but the check still fails and I missed that this
fix was not picked up before RC1. This same problem has been identified
in 3.7-RC1 by Tony Prisk and should be addressed by the following patch.
Signed-off-by: Mel Gorman <[email protected]>
Tested-by: Tony Prisk <[email protected]>
Reported-by: Thierry Reding <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Acked-by: Minchan Kim <[email protected]>
Cc: Richard Davies <[email protected]>
Cc: Shaohua Li <[email protected]>
Cc: Avi Kivity <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/compaction.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 2c4ce17651d8..9eef55838fca 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -346,7 +346,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, * pages requested were isolated. If there were any failures, 0 is * returned and CMA will fail. */ - if (strict && nr_strict_required != total_isolated) + if (strict && nr_strict_required > total_isolated) total_isolated = 0; if (locked) |