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Code Issues Releases Wiki Activity

dm ebs: Fix incorrect checking for REQ_OP_FLUSH 

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@redhat.com>
Acked-by: Heinz Mauelshagen <heinzm@redhat.com>
Fixes: d3c7b35c20 ("dm: add emulated block size target")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
John Dorminy 2020-07-31 18:46:45 -04:00 committed by Mike Snitzer
parent 90e6bf0659
commit 4cb6f22612
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-ebs-target.c
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@ -363,7 +363,7 @@ static int ebs_map(struct dm_target *ti, struct bio *bio)
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