X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;ds=sidebyside;f=fs%2Fstat.c;h=14f45459c83d650fb09c4069d5dd7db907a67b95;hb=024e9679a2daaa67642693366fb63a6b8c61b9f3;hp=d221995278803c20f91aa089dcc9823cc3c34da8;hpb=836fb7e7b978e5f3b8b52e40838ddc50264723f0;p=karo-tx-linux.git

diff --git a/fs/stat.c b/fs/stat.c
index d22199527880..14f45459c83d 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -300,11 +300,13 @@ SYSCALL_DEFINE4(readlinkat, int, dfd, const char __user *, pathname,
 	struct path path;
 	int error;
 	int empty = 0;
+	unsigned int lookup_flags = LOOKUP_EMPTY;
 
 	if (bufsiz <= 0)
 		return -EINVAL;
 
-	error = user_path_at_empty(dfd, pathname, LOOKUP_EMPTY, &path, &empty);
+retry:
+	error = user_path_at_empty(dfd, pathname, lookup_flags, &path, &empty);
 	if (!error) {
 		struct inode *inode = path.dentry->d_inode;
 
@@ -318,6 +320,10 @@ SYSCALL_DEFINE4(readlinkat, int, dfd, const char __user *, pathname,
 			}
 		}
 		path_put(&path);
+		if (retry_estale(error, lookup_flags)) {
+			lookup_flags |= LOOKUP_REVAL;
+			goto retry;
+		}
 	}
 	return error;
 }