[PATCH] proc: don't lock task_structs indefinitely

[linux-2.6-omap-h63xx.git] / fs / namei.c

diff --git a/fs/namei.c b/fs/namei.c
index bb4a3e40e43269944523fc4f3987d4a556ca5f84..c784e8bb57a35c6fa272ece7303095887ef65e8a 100644 (file)
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2243,14 +2243,16 @@ asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
        int error;
        char * to;
 
-       if (flags != 0)
+       if ((flags & ~AT_SYMLINK_FOLLOW) != 0)
                return -EINVAL;
 
        to = getname(newname);
        if (IS_ERR(to))
                return PTR_ERR(to);
 
-       error = __user_walk_fd(olddfd, oldname, 0, &old_nd);
+       error = __user_walk_fd(olddfd, oldname,
+                              flags & AT_SYMLINK_FOLLOW ? LOOKUP_FOLLOW : 0,
+                              &old_nd);
        if (error)
                goto exit;
        error = do_path_lookup(newdfd, to, LOOKUP_PARENT, &nd);