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| author | Ingo Molnar <mingo@kernel.org> | 2016-05-05 10:12:37 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-05 10:12:37 +0200 |
| commit | 1a618c2cfe4c02190d8d1f9c5052f0defc58de20 (patch) | |
| tree | 170002288786f702e1d4ca638b53d1594a7caa16 /mm/page_io.c | |
| parent | 03d85a63ee3e2d3a43460f936b86334b32f88c89 (diff) | |
| parent | 8482716b9d865db34c55d4bf2fed19498e7195b9 (diff) | |
| download | blackbird-obmc-linux-1a618c2cfe4c02190d8d1f9c5052f0defc58de20.tar.gz blackbird-obmc-linux-1a618c2cfe4c02190d8d1f9c5052f0defc58de20.zip | |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/page_io.c')
| -rw-r--r-- | mm/page_io.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/page_io.c b/mm/page_io.c index cd92e3d67a32..985f23cfa79b 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -353,7 +353,11 @@ int swap_readpage(struct page *page) ret = bdev_read_page(sis->bdev, swap_page_sector(page), page); if (!ret) { - swap_slot_free_notify(page); + if (trylock_page(page)) { + swap_slot_free_notify(page); + unlock_page(page); + } + count_vm_event(PSWPIN); return 0; } |
