Commit ccc0197b authored by Joern Engel's avatar Joern Engel
Browse files

logfs: Close i_ino reuse race 



logfs_seek_hole() may return the same offset it is passed as argument.
Found by Prasad Joshi <prasadjoshi124@gmail.com>

Signed-off-by: default avatarJoern Engel <joern@logfs.org>
parent bd2b3f29

fs/logfs/inode.c

+1 −1
Original line number Diff line number Diff line
@@ -326,7 +326,7 @@ static void logfs_set_ino_generation(struct super_block *sb, 
	u64 ino;



	mutex_lock(&super->s_journal_mutex);

	ino = logfs_seek_hole(super->s_master_inode, super->s_last_ino);

	ino = logfs_seek_hole(super->s_master_inode, super->s_last_ino + 1);

	super->s_last_ino = ino;

	super->s_inos_till_wrap--;

	if (super->s_inos_till_wrap < 0) {