Commit 3637c05d authored Mar 26, 2012 by Miklos Szeredi Committed by Al Viro Mar 31, 2012

vfs: don't revalidate just looked up dentry



__lookup_hash() calls ->lookup() if the dentry needs lookup and on success
revalidates the dentry (all under dir->i_mutex).

While this is harmless it doesn't make a lot of sense.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent fa4ee159

fs/namei.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -1869,9 +1869,7 @@ static struct dentry __lookup_hash(struct qstr name,
		* __lookup_hash is called with the parent dir's i_mutex already
		* held, so we are good to go here.
		*/
		dentry = d_inode_lookup(base, dentry, nd);
		if (IS_ERR(dentry))
		return dentry;
		return d_inode_lookup(base, dentry, nd);
		}

		if (dentry && (dentry->d_flags & DCACHE_OP_REVALIDATE)) {