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| author | Hillf Danton <dhillf@gmail.com> | 2011-12-08 14:34:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-12-09 07:50:28 -0800 |
| commit | 09761333ed47e899cc1482c13090b95f3f711971 (patch) | |
| tree | b2563e89da16b64727b45b384dba94e1dcd8dfa2 | |
| parent | 58a84aa92723d1ac3e1cc4e3b0ff49291663f7e1 (diff) | |
| download | lwn-09761333ed47e899cc1482c13090b95f3f711971.tar.gz lwn-09761333ed47e899cc1482c13090b95f3f711971.zip | |
mm/migrate.c: pair unlock_page() and lock_page() when migrating huge pages
Avoid unlocking and unlocked page if we failed to lock it.
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/migrate.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 578e29174fa6..177aca424a06 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -871,9 +871,9 @@ static int unmap_and_move_huge_page(new_page_t get_new_page, if (anon_vma) put_anon_vma(anon_vma); -out: unlock_page(hpage); +out: if (rc != -EAGAIN) { list_del(&hpage->lru); put_page(hpage); |