diff options
| author | Mel Gorman <mgorman@suse.de> | 2014-01-07 14:00:42 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-09 12:25:13 -0800 |
| commit | f3b578d9d009a9f670e893cec8579aa069aaaccb (patch) | |
| tree | 555a0dd66311e3f90eb3d8aa86b3f14487d7d7ed /mm/migrate.c | |
| parent | 273b7205315533d9327323ad7a115d9feec943b7 (diff) | |
mm: numa: avoid unnecessary work on the failure path
commit eb4489f69f224356193364dc2762aa009738ca7f upstream.
If a PMD changes during a THP migration then migration aborts but the
failure path is doing more work than is necessary.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Alex Thorlton <athorlton@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 818c1691855..e33f0d11634 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1726,7 +1726,8 @@ fail_putback: putback_lru_page(page); mod_zone_page_state(page_zone(page), NR_ISOLATED_ANON + page_lru, -HPAGE_PMD_NR); - goto out_fail; + + goto out_unlock; } /* @@ -1800,6 +1801,7 @@ out_dropref: } spin_unlock(&mm->page_table_lock); +out_unlock: unlock_page(page); put_page(page); return 0; |