The patch titled
Subject: mm: compaction: correct the nr_strict va isolated check for CMA
has been removed from the -mm tree. Its filename was
mm-compaction-correct-the-nr_strict_isolated-check-for-cma.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxx>
Subject: 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 <mgorman@xxxxxxx>
Tested-by: Tony Prisk <linux@xxxxxxxxxxxxxxx>
Reported-by: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
Acked-by: Rik van Riel <riel@xxxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Richard Davies <richard@xxxxxxxxxxxx>
Cc: Shaohua Li <shli@xxxxxxxxxx>
Cc: Avi Kivity <avi@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/compaction.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/compaction.c~mm-compaction-correct-the-nr_strict_isolated-check-for-cma mm/compaction.c
--- a/mm/compaction.c~mm-compaction-correct-the-nr_strict_isolated-check-for-cma
+++ a/mm/compaction.c
@@ -346,7 +346,7 @@ static unsigned long isolate_freepages_b
* 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)
_
Patches currently in -mm which might be from mgorman@xxxxxxx are
linux-next.patch
mm-vmscan-scale-number-of-pages-reclaimed-by-reclaim-compaction-only-in-direct-reclaim.patch
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