diff options
| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2011-05-24 17:11:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-25 08:39:08 -0700 |
| commit | f62e00cc3a00bfbd394a79fc22b334c31f91bd5f (patch) | |
| tree | 29e0a3ac793e4a5a15bbbe4b4945470a41e820e7 /include/linux/pagemap.h | |
| parent | fa25c503dfa203b921199ea42c0046c89f2ed49f (diff) | |
| download | lwn-f62e00cc3a00bfbd394a79fc22b334c31f91bd5f.tar.gz lwn-f62e00cc3a00bfbd394a79fc22b334c31f91bd5f.zip | |
mm: introduce wait_on_page_locked_killable()
commit 2687a356 ("Add lock_page_killable") introduced killable
lock_page(). Similarly this patch introdues killable
wait_on_page_locked().
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/pagemap.h')
| -rw-r--r-- | include/linux/pagemap.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index c11950652646..ea268080380d 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -357,6 +357,15 @@ static inline int lock_page_or_retry(struct page *page, struct mm_struct *mm, */ extern void wait_on_page_bit(struct page *page, int bit_nr); +extern int wait_on_page_bit_killable(struct page *page, int bit_nr); + +static inline int wait_on_page_locked_killable(struct page *page) +{ + if (PageLocked(page)) + return wait_on_page_bit_killable(page, PG_locked); + return 0; +} + /* * Wait for a page to be unlocked. * |