From 0713ed0cde76438d05849f1537d3aab46e099475 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Mon, 27 May 2013 23:32:35 -0400 Subject: [PATCH] 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 Signed-off-by: Theodore Ts'o --- fs/ext4/inode.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 9b3380327ae2..e3d0fb9e78c4 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -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); -- 2.20.1