[PATCH v3] f2fs: stop issue discard if something wrong with f2fs

[Yunlei He <heyunlei@huawei.com>]

This patch stop async thread and umount process to issue discard
if something wrong with f2fs, which is similar to fstrim.

v1->v2: add fs error check in not only discard thread but also umount process
v2->v3: remove redundant error message

Signed-off-by: Yunlei He <heyunlei@huawei.com>
---
 fs/f2fs/segment.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 5854cc4..e31d506 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1202,6 +1202,9 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
 	int i, iter = 0, issued = 0;
 	bool io_interrupted = false;
 
+	if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
+		return issued;
+
 	for (i = MAX_PLIST_NUM - 1; i >= 0; i--) {
 		if (i + 1 < dpolicy->granularity)
 			break;
-- 
1.9.1


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