tree 17035c1d501390f00efac6895ee663c45d4fb699
parent 8ba32fde2c5be52865b2fd7e5e3752a46971fabe
author Christoph Lameter <clameter@sgi.com> 1142579047 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1142610685 -0800

[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>