The patch titled
Subject: mm, compaction: prevent VM_BUG_ON when terminating freeing scanner fix
has been added to the -mm tree. Its filename is
mm-compaction-prevent-vm_bug_on-when-terminating-freeing-scanner-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-prevent-vm_bug_on-when-terminating-freeing-scanner-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-compaction-prevent-vm_bug_on-when-terminating-freeing-scanner-fix.patch
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------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm, compaction: prevent VM_BUG_ON when terminating freeing scanner fix
Per Joonsoo.
An artifact of __isolate_free_page() doing per-zone watermark checks (?),
we don't want to rescan pages in a pageblock that were not successfully
isolated last time.
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1607111244150.83138@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/compaction.c | 1 -
1 file changed, 1 deletion(-)
diff -puN mm/compaction.c~mm-compaction-prevent-vm_bug_on-when-terminating-freeing-scanner-fix mm/compaction.c
--- a/mm/compaction.c~mm-compaction-prevent-vm_bug_on-when-terminating-freeing-scanner-fix
+++ a/mm/compaction.c
@@ -1055,7 +1055,6 @@ static void isolate_freepages(struct com
* If isolation failed early, do not continue
* needlessly.
*/
- isolate_start_pfn = block_start_pfn;
break;
}
}
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
mm-compaction-prevent-vm_bug_on-when-terminating-freeing-scanner.patch
mm-compaction-prevent-vm_bug_on-when-terminating-freeing-scanner-fix.patch
mm-compaction-split-freepages-without-holding-the-zone-lock-fix.patch
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