From b8a8824ca011050b590a6353067e722a24a591fb Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Fri, 11 May 2018 11:49:31 -0400 Subject: ovl: Check redirects for metacopy files Right now we rely on path based lookup for data origin of metacopy upper. This will work only if upper has not been renamed. We solved this problem already for merged directories using redirect. Use same logic for metacopy files. This patch just goes on to check redirects for metacopy files. Signed-off-by: Vivek Goyal Reviewed-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/namei.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index e4bbe6ed6a87..eddb80dd0766 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -272,7 +272,8 @@ static int ovl_lookup_single(struct dentry *base, struct ovl_lookup_data *d, d->metacopy = err; d->stop = !d->metacopy; - goto out; + if (!d->metacopy || d->last) + goto out; } else { if (last_element) d->is_dir = true; @@ -874,7 +875,6 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, if (upperdentry && !d.is_dir) { unsigned int origin_ctr = 0; - BUG_ON(d.redirect); /* * Lookup copy up origin by decoding origin file handle. * We may get a disconnected dentry, which is fine, -- cgit v1.2.3