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(parent: 8ba32fd) | patch
[PATCH] fix race in pagevec_strip?
authorChristoph Lameter <clameter@sgi.com>
Fri, 17 Mar 2006 07:04:07 +0000 (23:04 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 17 Mar 2006 15:51:25 +0000 (07:51 -0800)
commit5b40dc780ed996162f3af8712eb03beb24dcdbef
tree17035c1d501390f00efac6895ee663c45d4fb699tree | snapshot (tar.gz zip)
parent8ba32fde2c5be52865b2fd7e5e3752a46971fabecommit | diff
[PATCH] fix race in pagevec_strip?

We can call try_to_release_page() with PagePrivate off and a valid
page->mapping This may cause all sorts of trouble for the filesystem
*_releasepage() handlers.  XFS bombs out in that case.

Lock the page before checking for page private.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
mm/swap.c diff | blob | blame | history