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block: use bdrv_is_sg() helper instead of raw bs->sg reading

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I believe that if the helper exists, it must be used always for reading
of the value. It breaks expectations in the other case.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Hanna Reitz <hreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <fam@euphon.net>
CC: Ronnie Sahlberg <ronniesahlberg@gmail.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Peter Lieven <pl@kamp.de>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20220817083736.40981-2-den@openvz.org>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Denis V. Lunev 2022-08-17 10:37:35 +02:00 • committed by Kevin Wolf
parent 62a6c300f1
commit 006e196244
3 changed files with 4 additions and 4 deletions
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4
block/raw-format.c
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@ -463,7 +463,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
bs->sg = bs->file->bs->sg;
bs->sg = bdrv_is_sg(bs->file->bs);
bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED |
(BDRV_REQ_FUA & bs->file->bs->supported_write_flags);
bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED |
@ -489,7 +489,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags,
return ret;
}
if (bs->sg && (s->offset || s->has_size)) {
if (bdrv_is_sg(bs) && (s->offset || s->has_size)) {
error_setg(errp, "Cannot use offset/size with SCSI generic devices");
return -EINVAL;
}