---

yaml --- r: 347841 b: refs/heads/master c: 7955119 h: refs/heads/master i: 347839: 829ff6e v: v3
git-mirror · Dec 20, 2012 · b24bbaa · b24bbaa
1 parent f095915
commit b24bbaa
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 836fb7e7b978e5f3b8b52e40838ddc50264723f0
+refs/heads/master: 7955119e02d9fdf78a39fba8073f19ca6152613e
diff --git a/trunk/fs/stat.c b/trunk/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;
 }