f2fs: support discard submission error injection
This patch adds to support discard submission error injection for testing
error handling of __submit_discard_cmd().
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8a8130a..3b169c5 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1041,10 +1041,18 @@
dc->len += len;
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+ if (time_to_inject(sbi, FAULT_DISCARD)) {
+ f2fs_show_injection_info(FAULT_DISCARD);
+ err = -EIO;
+ goto submit;
+ }
+#endif
err = __blkdev_issue_discard(bdev,
SECTOR_FROM_BLOCK(start),
SECTOR_FROM_BLOCK(len),
GFP_NOFS, 0, &bio);
+submit:
if (!err && bio) {
/*
* should keep before submission to avoid D_DONE