Commit 55f252c9 authored May 27, 2013 by Lukas Czerner Committed by Theodore Ts'o May 27, 2013

ext4: truncate_inode_pages() in orphan cleanup path



Currently we do not tell mm to zero out tail of the page before truncate
in orphan_cleanup(). This is ok, because the page should not be
uptodate, however this may eventually change and I might cause problems.

Call truncate_inode_pages() as precautionary measure. Thanks Jan Kara
for pointing this out.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

parent eb3544c6

fs/ext4/super.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2170,6 +2170,7 @@ static void ext4_orphan_cleanup(struct super_block *sb,
		jbd_debug(2, "truncating inode %lu to %lld bytes\n",
		inode->i_ino, inode->i_size);
		mutex_lock(&inode->i_mutex);
		truncate_inode_pages(inode->i_mapping, inode->i_size);
		ext4_truncate(inode);
		mutex_unlock(&inode->i_mutex);
		nr_truncates++;