+ mm-compaction-correct-the-comments-of-compact_defer_shift.patch added to -mm tree

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm/compaction: correct the comments of compact_defer_shift
has been added to the -mm tree.  Its filename is
     mm-compaction-correct-the-comments-of-compact_defer_shift.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-correct-the-comments-of-compact_defer_shift.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-compaction-correct-the-comments-of-compact_defer_shift.patch

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------------------------------------------------------
From: Alex Shi <alex.shi@linux.alibaba.com>
Subject: mm/compaction: correct the comments of compact_defer_shift

There is no compact_defer_limit. It should be compact_defer_shift in
use. and add compact_order_failed explanation.

Link: http://lkml.kernel.org/r/3bd60e1b-a74e-050d-ade4-6e8f54e00b92@linux.alibaba.com
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/mmzone.h |    1 +
 mm/compaction.c        |    2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/include/linux/mmzone.h~mm-compaction-correct-the-comments-of-compact_defer_shift
+++ a/include/linux/mmzone.h
@@ -536,6 +536,7 @@ struct zone {
 	 * On compaction failure, 1<<compact_defer_shift compactions
 	 * are skipped before trying again. The number attempted since
 	 * last failure is tracked with compact_considered.
+	 * compact_order_failed is the minimum compaction failed order.
 	 */
 	unsigned int		compact_considered;
 	unsigned int		compact_defer_shift;
--- a/mm/compaction.c~mm-compaction-correct-the-comments-of-compact_defer_shift
+++ a/mm/compaction.c
@@ -154,7 +154,7 @@ EXPORT_SYMBOL(__ClearPageMovable);
 
 /*
  * Compaction is deferred when compaction fails to result in a page
- * allocation success. 1 << compact_defer_limit compactions are skipped up
+ * allocation success. 1 << compact_defer_shift, compactions are skipped up
  * to a limit of 1 << COMPACT_MAX_DEFER_SHIFT
  */
 void defer_compaction(struct zone *zone, int order)
_

Patches currently in -mm which might be from alex.shi@linux.alibaba.com are

mm-compaction-correct-the-comments-of-compact_defer_shift.patch