This is a note to let you know that I've just added the patch titled
dm ebs: Fix incorrect checking for REQ_OP_FLUSH
to the 5.8-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-ebs-fix-incorrect-checking-for-req_op_flush.patch
and it can be found in the queue-5.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4cb6f22612511ff2aba4c33fb0f281cae7c23772 Mon Sep 17 00:00:00 2001
From: John Dorminy <jdorminy@xxxxxxxxxx>
Date: Fri, 31 Jul 2020 18:46:45 -0400
Subject: dm ebs: Fix incorrect checking for REQ_OP_FLUSH
From: John Dorminy <jdorminy@xxxxxxxxxx>
commit 4cb6f22612511ff2aba4c33fb0f281cae7c23772 upstream.
REQ_OP_FLUSH was being treated as a flag, but the operation
part of bio->bi_opf must be treated as a whole. Change to
accessing the operation part via bio_op(bio) and checking
for equality.
Signed-off-by: John Dorminy <jdorminy@xxxxxxxxxx>
Acked-by: Heinz Mauelshagen <heinzm@xxxxxxxxxx>
Fixes: d3c7b35c20d60 ("dm: add emulated block size target")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm-ebs-target.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm-ebs-target.c
+++ b/drivers/md/dm-ebs-target.c
@@ -363,7 +363,7 @@ static int ebs_map(struct dm_target *ti,
bio_set_dev(bio, ec->dev->bdev);
bio->bi_iter.bi_sector = ec->start + dm_target_offset(ti, bio->bi_iter.bi_sector);
- if (unlikely(bio->bi_opf & REQ_OP_FLUSH))
+ if (unlikely(bio_op(bio) == REQ_OP_FLUSH))
return DM_MAPIO_REMAPPED;
/*
* Only queue for bufio processing in case of partial or overlapping buffers
Patches currently in stable-queue which might be from jdorminy@xxxxxxxxxx are
queue-5.8/dm-ebs-fix-incorrect-checking-for-req_op_flush.patch
