fs/namei.c: don't pass nameidata to d_revalidate()

since the method wrapped by it doesn't need that anymore...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/namei.c

@@ -463,9 +463,9 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry)
 	return -ECHILD;
 }
 
-static inline int d_revalidate(struct dentry *dentry, struct nameidata *nd)
+static inline int d_revalidate(struct dentry *dentry, unsigned int flags)
 {
-	return dentry->d_op->d_revalidate(dentry, nd ? nd->flags : 0);
+	return dentry->d_op->d_revalidate(dentry, flags);
 }
 
 /**
@@ -511,7 +511,7 @@ static int complete_walk(struct nameidata *nd)
 		return 0;
 
 	/* Note: we do not d_invalidate() */
-	status = d_revalidate(dentry, nd);
+	status = d_revalidate(dentry, nd->flags);
 	if (status > 0)
 		return 0;
 
@@ -1050,7 +1050,7 @@ static struct dentry *lookup_dcache(struct qstr *name, struct dentry *dir,
 		if (d_need_lookup(dentry)) {
 			*need_lookup = true;
 		} else if (dentry->d_flags & DCACHE_OP_REVALIDATE) {
-			error = d_revalidate(dentry, nd);
+			error = d_revalidate(dentry, nd ? nd->flags : 0);
 			if (unlikely(error <= 0)) {
 				if (error < 0) {
 					dput(dentry);
@@ -1158,7 +1158,7 @@ static int lookup_fast(struct nameidata *nd, struct qstr *name,
 		if (unlikely(d_need_lookup(dentry)))
 			goto unlazy;
 		if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) {
-			status = d_revalidate(dentry, nd);
+			status = d_revalidate(dentry, nd->flags);
 			if (unlikely(status <= 0)) {
 				if (status != -ECHILD)
 					need_reval = 0;
@@ -1188,7 +1188,7 @@ static int lookup_fast(struct nameidata *nd, struct qstr *name,
 	}
 
 	if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE) && need_reval)
-		status = d_revalidate(dentry, nd);
+		status = d_revalidate(dentry, nd->flags);
 	if (unlikely(status <= 0)) {
 		if (status < 0) {
 			dput(dentry);