From daffa924659994e8631b149e02540e6269b69a90 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Tue, 1 Apr 2014 17:38:26 +0900 Subject: [PATCH] f2fs: return -EIO when node id is not matched During the cleaing of node segments, F2FS can get errored node blocks due to data race between node page lock and its valid bitmap operations. In that case, it needs to return an error to skip such the obsolete block copy. Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index eced8d7bf5022..065cd99cc7232 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -958,7 +958,7 @@ repeat: goto got_it; lock_page(page); - if (unlikely(!PageUptodate(page))) { + if (unlikely(!PageUptodate(page) || nid != nid_of_node(page))) { f2fs_put_page(page, 1); return ERR_PTR(-EIO); } @@ -967,7 +967,6 @@ repeat: goto repeat; } got_it: - f2fs_bug_on(nid != nid_of_node(page)); mark_page_accessed(page); return page; } -- 2.39.5