diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-05-12 09:18:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-12 09:18:13 +0200 |
| commit | eb60b3e5e8dfdd590e586a6fc22daf2f63a7b7e6 (patch) | |
| tree | 1b06e2c1beca8f970685eb13096c7a12480526c6 /mm/page_io.c | |
| parent | 58fe9c4621b7219e724c0b7af053112f974a08c3 (diff) | |
| parent | 53d3bc773eaa7ab1cf63585e76af7ee869d5e709 (diff) | |
Merge branch 'sched/urgent' into sched/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; } |