If ERROR_READS is set, flakey_map returns DM_MAPIO_KILL for read
bios and flakey_end_io is never called, so there's no point in
checking it there. Also clean up an incorrect comment about when
read IOs are errored out.
Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
---
drivers/md/dm-flakey.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 35f1708b62e8..0421f9336680 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -511,8 +511,8 @@ static int flakey_map(struct dm_target *ti, struct bio *bio)
pb->bio_submitted = true;
/*
- * Error reads if neither corrupt_bio_byte or drop_writes or error_writes are set.
- * Otherwise, flakey_end_io() will decide if the reads should be modified.
+ * If ERROR_READS isn't set flakey_end_io() will decide if the
+ * reads should be modified.
*/
if (bio_data_dir(bio) == READ) {
if (test_bit(ERROR_READS, &fc->flags))
@@ -590,13 +590,6 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio,
if (rem < fc->random_read_corrupt)
corrupt_bio_random(bio);
}
- if (test_bit(ERROR_READS, &fc->flags)) {
- /*
- * Error read during the down_interval if drop_writes
- * and error_writes were not configured.
- */
- *error = BLK_STS_IOERR;
- }
}
return DM_ENDIO_DONE;
--
2.48.1
