From 14ece1028b3ed53ffec1b1213ffc6acaf79ad77c Mon Sep 17 00:00:00 2001 From: Frank Mayhar Date: Mon, 17 May 2010 08:00:00 -0400 Subject: ext4: Make fsync sync new parent directories in no-journal mode Add a new ext4 state to tell us when a file has been newly created; use that state in ext4_sync_file in no-journal mode to tell us when we need to sync the parent directory as well as the inode and data itself. This fixes a problem in which a panic or power failure may lose the entire file even when using fsync, since the parent directory entry is lost. Addresses-Google-Bug: #2480057 Signed-off-by: Frank Mayhar Signed-off-by: "Theodore Ts'o" --- fs/ext4/namei.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ext4/namei.c') diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 83be743..a43e661 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1517,6 +1517,8 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry, de->rec_len = ext4_rec_len_to_disk(blocksize, blocksize); retval = add_dirent_to_buf(handle, dentry, inode, de, bh); brelse(bh); + if (retval == 0) + ext4_set_inode_state(inode, EXT4_STATE_NEWENTRY); return retval; } -- cgit v1.1