From: Chao Yu <yuchao0@huawei.com>
Date: Fri, 10 Apr 2020 10:07:20 +0000 (+0800)
Subject: f2fs: fix to handle error path of f2fs_ra_meta_pages()
X-Git-Tag: v5.8-rc1~77^2~46
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ce4c638cdd52b302247434daed4c127f258d9860;p=users%2Fjedix%2Flinux-maple.git

f2fs: fix to handle error path of f2fs_ra_meta_pages()

In f2fs_ra_meta_pages(), if f2fs_submit_page_bio() failed, we need to
unlock page, fix it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 852890b72d6ac..6be357c8e0020 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -220,6 +220,7 @@ int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
 		.is_por = (type == META_POR),
 	};
 	struct blk_plug plug;
+	int err;
 
 	if (unlikely(type == META_POR))
 		fio.op_flags &= ~REQ_META;
@@ -263,8 +264,8 @@ int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
 		}
 
 		fio.page = page;
-		f2fs_submit_page_bio(&fio);
-		f2fs_put_page(page, 0);
+		err = f2fs_submit_page_bio(&fio);
+		f2fs_put_page(page, err ? 1 : 0);
 	}
 out:
 	blk_finish_plug(&plug);