ext4: Call ext4_jbd2_file_inode() after zeroing block
In data=ordered mode we should call ext4_jbd2_file_inode() so that crash
after the truncate transaction has committed does not expose stall data
in the tail of the block.
Thanks Jan Kara for pointing that out.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9b33803..e3d0fb9 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3681,8 +3681,11 @@
err = 0;
if (ext4_should_journal_data(inode)) {
err = ext4_handle_dirty_metadata(handle, inode, bh);
- } else
+ } else {
mark_buffer_dirty(bh);
+ if (ext4_test_inode_state(inode, EXT4_STATE_ORDERED_MODE))
+ err = ext4_jbd2_file_inode(handle, inode);
+ }
unlock:
unlock_page(page);