diff options
| author | Chris Mason <clm@fb.com> | 2016-05-17 14:43:19 -0700 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2016-05-17 14:43:19 -0700 |
| commit | c315ef8d9db7f1a0ebd023a395ebdfde1c68057e (patch) | |
| tree | 501e1fc558de9e56b78e457aa928fa255e660486 /mm/page_io.c | |
| parent | a88336d13c66fc171f336c6332fcb67339894e08 (diff) | |
| parent | 5f9a8a51d8b95505d8de8b7191ae2ed8c504d4af (diff) | |
| download | linux-c315ef8d9db7f1a0ebd023a395ebdfde1c68057e.tar.bz2 | |
Merge branch 'for-chris-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.7
Signed-off-by: Chris Mason <clm@fb.com>
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; } |