The patch titled
mm: migration: clarify migrate_pages() comment
has been removed from the -mm tree. Its filename was
mm-migration-clarify-migrate_pages-comment.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mm: migration: clarify migrate_pages() comment
From: Minchan Kim <minchan.kim@xxxxxxxxx>
Callers of migrate_pages should putback_lru_pages to return pages isolated
to LRU or free list. Now comment is rather confusing. It says caller
always have to call it.
It is more clear to point out that the caller has to call it if
migrate_pages's return value isn't zero.
Signed-off-by: Minchan Kim <minchan.kim@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/migrate.c~mm-migration-clarify-migrate_pages-comment mm/migrate.c
--- a/mm/migrate.c~mm-migration-clarify-migrate_pages-comment
+++ a/mm/migrate.c
@@ -888,7 +888,7 @@ out:
* are movable anymore because to has become empty
* or no retryable pages exist anymore.
* Caller should call putback_lru_pages to return pages to the LRU
- * or free list.
+ * or free list only if ret != 0.
*
* Return: Number of pages not migrated or error code.
*/
_
Patches currently in -mm which might be from minchan.kim@xxxxxxxxx are
origin.patch
linux-next.patch
mm-vmap-area-cache.patch
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