link_path_walk: nd->depth massage, part 3

remove decrement/increment surrounding nd_alloc_stack(), adjust the
test in it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/namei.c b/fs/namei.c
index a403425..3df4731 100644 (file)
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -539,7 +539,7 @@ static int __nd_alloc_stack(struct nameidata *nd)
 
 static inline int nd_alloc_stack(struct nameidata *nd)
 {
-       if (likely(nd->depth != EMBEDDED_LEVELS - 1))
+       if (likely(nd->depth != EMBEDDED_LEVELS))
                return 0;
        if (likely(nd->stack != nd->internal))
                return 0;
@@ -1824,9 +1824,7 @@ Walked:
                if (err) {
                        const char *s;
 
-                       nd->depth--;
                        err = nd_alloc_stack(nd);
-                       nd->depth++;
                        if (unlikely(err)) {
                                path_to_nameidata(&nd->link, nd);
                                break;