[v4,14/20] ext4: truncate_inode_pages() in orphan cleanup path

Message ID 1368549454-8930-15-git-send-email-lczerner@redhat.com
State Accepted, archived
Headers show

Commit Message

Lukas Czerner May 14, 2013, 4:37 p.m.
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>
 fs/ext4/super.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)


diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index dbc7c09..b971066 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2173,6 +2173,7 @@  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);
+			truncate_inode_pages(inode->i_mapping, inode->i_size);