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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-05-11 00:00:29 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-05-11 00:00:29 -0400 |
| commit | e4d35be584be88a3db3fa5635a97c62a2ec5aafe (patch) | |
| tree | fc22a7fb65697306edd71411959ccee6df60c64d /mm/page_io.c | |
| parent | 99d825822eade8d827a1817357cbf3f889a552d6 (diff) | |
| parent | 38b78a5f18584db6fa7441e0f4531b283b0e6725 (diff) | |
| download | linux-e4d35be584be88a3db3fa5635a97c62a2ec5aafe.tar.bz2 | |
Merge branch 'ovl-fixes' into for-linus
Diffstat (limited to 'mm/page_io.c')
| -rw-r--r-- | mm/page_io.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/page_io.c b/mm/page_io.c index 18aac7819cc9..985f23cfa79b 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -252,7 +252,7 @@ out: static sector_t swap_page_sector(struct page *page) { - return (sector_t)__page_file_index(page) << (PAGE_CACHE_SHIFT - 9); + return (sector_t)__page_file_index(page) << (PAGE_SHIFT - 9); } int __swap_writepage(struct page *page, struct writeback_control *wbc, @@ -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; } |