Commit 0713ed0c authored May 27, 2013 by Lukas Czerner Committed by Theodore Ts'o May 27, 2013

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>

parent d863dc36

fs/ext4/inode.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -3681,8 +3681,11 @@ int ext4_block_zero_page_range(handle_t *handle,
		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);