diff options
| author | Jens Axboe <axboe@fb.com> | 2014-04-15 14:02:24 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-04-15 14:02:24 -0600 |
| commit | f89e0dd9d1a72fdf6b8958bcadfa6abf84f3cae0 (patch) | |
| tree | 6d4ca8c67dc22d1c81053392078588f9ab3804b5 /mm/rmap.c | |
| parent | 21f9fcd81593e201172160853b8647336fb81f4f (diff) | |
| parent | c9eaa447e77efe77b7fa4c953bd62de8297fd6c5 (diff) | |
| download | linux-f89e0dd9d1a72fdf6b8958bcadfa6abf84f3cae0.tar.gz linux-f89e0dd9d1a72fdf6b8958bcadfa6abf84f3cae0.tar.bz2 linux-f89e0dd9d1a72fdf6b8958bcadfa6abf84f3cae0.zip | |
Merge tag 'v3.15-rc1' into for-3.16/core
We don't like this, but things have diverged with the blk-mq fixes
in 3.15-rc1. So merge it in.
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 11cf322f8133..9c3e77396d1a 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1332,9 +1332,19 @@ static int try_to_unmap_cluster(unsigned long cursor, unsigned int *mapcount, BUG_ON(!page || PageAnon(page)); if (locked_vma) { - mlock_vma_page(page); /* no-op if already mlocked */ - if (page == check_page) + if (page == check_page) { + /* we know we have check_page locked */ + mlock_vma_page(page); ret = SWAP_MLOCK; + } else if (trylock_page(page)) { + /* + * If we can lock the page, perform mlock. + * Otherwise leave the page alone, it will be + * eventually encountered again later. + */ + mlock_vma_page(page); + unlock_page(page); + } continue; /* don't unmap */ } |