vfs: pass all mask flags check_acl and posix_acl_permission

Acked-by: J. Bruce Fields <[e-mail]>
Acked-by: David Howells <[e-mail]>
Signed-off-by: Andreas Gruenbacher <[e-mail]>
Signed-off-by: Aneesh Kumar K.V <[e-mail]>
Signed-off-by: Christoph Hellwig <[e-mail]>

fs/namei.c

···
 {
 	unsigned int mode = inode->i_mode;
 
-	mask &= MAY_READ | MAY_WRITE | MAY_EXEC | MAY_NOT_BLOCK;
-
 	if (current_user_ns() != inode_userns(inode))
 		goto other_perms;
 

fs/posix_acl.c

···
 	const struct posix_acl_entry *pa, *pe, *mask_obj;
 	int found = 0;
 
+	want &= MAY_READ | MAY_WRITE | MAY_EXEC | MAY_NOT_BLOCK;
+
 	FOREACH_ACL_ENTRY(pa, acl, pe) {
                 switch(pa->e_tag) {
                         case ACL_USER_OBJ: