From: Al Viro <viro@xxxxxxxxxxxxxxxxxx> commit 21039132650281de06a169cbe8a0f7e5c578fd8b upstream. with the way fs/namei.c:do_last() had been done, ->atomic_open() instances needed to recognize the case when existing file got found with O_EXCL|O_CREAT, either by falling back to finish_no_open() or failing themselves. gfs2 one didn't. Fixes: 6d4ade986f9c (GFS2: Add atomic_open support) Cc: stable@xxxxxxxxxx # v3.11 Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/gfs2/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1248,7 +1248,7 @@ static int gfs2_atomic_open(struct inode if (!(file->f_mode & FMODE_OPENED)) return finish_no_open(file, d); dput(d); - return 0; + return excl && (flags & O_CREAT) ? -EEXIST : 0; } BUG_ON(d != NULL);
