From dc37910d4c63296513c5795187d020ad9793822b Mon Sep 17 00:00:00 2001
From: Chao Yu <yuchao0@huawei.com>
Date: Tue, 19 Feb 2019 17:08:18 +0800
Subject: [PATCH] f2fs: make fault injection covering __submit_flush_wait()
This patch changes to allow failure of f2fs_bio_alloc() in
__submit_flush_wait(), which can simulate flush error in checkpoint()
for covering more error paths.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/segment.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index fdd8cd21522f..2537893e9466 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -542,9 +542,13 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
static int __submit_flush_wait(struct f2fs_sb_info *sbi,
struct block_device *bdev)
{
- struct bio *bio = f2fs_bio_alloc(sbi, 0, true);
+ struct bio *bio;
int ret;
+ bio = f2fs_bio_alloc(sbi, 0, false);
+ if (!bio)
+ return -ENOMEM;
+
bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH;
bio_set_dev(bio, bdev);
ret = submit_bio_wait(bio);