From f84262b0862d43b71b3e80a036cdd9d82e620367 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 19 Sep 2018 15:45:19 -0700 Subject: f2fs: avoid infinite loop in f2fs_alloc_nid If we have an error in f2fs_build_free_nids, we're able to fall into a loop to find free nids. Suggested-by: Chao Yu Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index fa2381c0bc47..d62f53096b55 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -2350,8 +2350,9 @@ retry: spin_unlock(&nm_i->nid_list_lock); /* Let's scan nat pages and its caches to get free nids */ - f2fs_build_free_nids(sbi, true, false); - goto retry; + if (!f2fs_build_free_nids(sbi, true, false)) + goto retry; + return false; } /* -- cgit v1.2.3