-
Jaegeuk Kim authored
If an inode is renamed, it should be registered as file_lost_pino to conduct checkpoint at f2fs_sync_file. Otherwise, the inode cannot be recovered due to no dent_mark in the following scenario. Note that, this scenario is from xfstests/322. 1. create "a" 2. fsync "a" 3. rename "a" to "b" 4. fsync "b" 5. Sudden power-cut After recovery is done, "b" should be seen. However, the result shows "a", since the recovery procedure does not enter recover_dentry due to no dent_mark. The reason is like below. - The nid of "a" is checkpointed during #2, f2fs_sync_file. - The inode page for "b" produced by #3 is written without dent_mark by sync_node_pages. So, this patch fixes this bug by assinging file_lost_pino to the "a"'s inode. If the pino is lost, f2fs_sync_file conducts checkpoint, and then recovers the latest pino and its dentry information for further recovery. Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
b2c08299