tree 1cc2370f081264e506d85e954110d363961e37bd
parent ce05b2a9db1d86635a906f14427deff97eeb6183
author Jan Kara <jack@suse.cz> 1245281183 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1245355425 -0700

ext3: fix chain verification in ext3_get_blocks()

Chain verification in ext3_get_blocks() has been hosed since it called
verify_chain(chain, NULL) which always returns success.  As a result
readers could in theory race with truncate.  On the other hand the race
probably cannot happen with the current locking scheme, since by the
time ext3_truncate() is called all the pages are already removed and
hence get_block() shouldn't be called on such pages...

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>