This is a note to let you know that I've just added the patch titled
dm integrity: do not check integrity for failed read operations
to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dm-integrity-do-not-check-integrity-for-failed-read-operations.patch
and it can be found in the queue-4.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b7e326f7b7375392d06f9cfbc27a7c63181f69d7 Mon Sep 17 00:00:00 2001
From: Hyunchul Lee <cheol.lee@xxxxxxx>
Date: Mon, 31 Jul 2017 16:22:20 +0900
Subject: dm integrity: do not check integrity for failed read operations
From: Hyunchul Lee <cheol.lee@xxxxxxx>
commit b7e326f7b7375392d06f9cfbc27a7c63181f69d7 upstream.
Even though read operations fail, dm_integrity_map_continue() calls
integrity_metadata() to check integrity. In this case, just complete
these.
This also makes it so read I/O errors do not generate integrity warnings
in the kernel log.
Signed-off-by: Hyunchul Lee <cheol.lee@xxxxxxx>
Acked-by: Milan Broz <gmazyland@xxxxxxxxx>
Acked-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm-integrity.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -1697,7 +1697,11 @@ sleep:
if (need_sync_io) {
wait_for_completion_io(&read_comp);
- integrity_metadata(&dio->work);
+ if (likely(!bio->bi_status))
+ integrity_metadata(&dio->work);
+ else
+ dec_in_flight(dio);
+
} else {
INIT_WORK(&dio->work, integrity_metadata);
queue_work(ic->metadata_wq, &dio->work);
Patches currently in stable-queue which might be from cheol.lee@xxxxxxx are
queue-4.13/dm-integrity-do-not-check-integrity-for-failed-read-operations.patch