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Commit 7500c38a authored by Al Viro's avatar Al Viro
Browse files

fix the braino in "namei: massage lookup_slow() to be usable by lookup_one_len_unlocked()" 



We should try to trigger automount *before* bailing out on negative dentry.

Reported-by: default avatarJun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: default avatarJun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: default avatarArend van Spriel <arend@broadcom.com>
Tested-by: default avatarArend van Spriel <arend@broadcom.com>
Tested-by: default avatarJun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent f55532a0

fs/namei.c

+6 −4
Original line number Diff line number Diff line
@@ -1740,15 +1740,17 @@ static int walk_component(struct nameidata *nd, int flags) 
					  nd->flags);

		if (IS_ERR(path.dentry))

			return PTR_ERR(path.dentry);

		if (unlikely(d_is_negative(path.dentry))) {

			dput(path.dentry);

			return -ENOENT;

		}



		path.mnt = nd->path.mnt;

		err = follow_managed(&path, nd);

		if (unlikely(err < 0))

			return err;



		if (unlikely(d_is_negative(path.dentry))) {

			path_to_nameidata(&path, nd);

			return -ENOENT;

		}



		seq = 0;	/* we are already out of RCU mode */

		inode = d_backing_inode(path.dentry);

	}