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block, drivers, cgroup: use op_is_write helper instead of checking for REQ_WRITE

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We currently set REQ_WRITE/WRITE for all non READ IOs
like discard, flush, writesame, etc. In the next patches where we
no longer set up the op as a bitmap, we will not be able to
detect a operation direction like writesame by testing if REQ_WRITE is
set.

This patch converts the drivers and cgroup to use the
op_is_write helper. This should just cover the simple
cases. I did dm, md and bcache in their own patches
because they were more involved.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Mike Christie
2016-06-05 14:31:45 -05:00
committed by Jens Axboe
parent dfec8a14fc
commit a8ebb056a8
7 changed files with 11 additions and 11 deletions
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4
drivers/scsi/osd/osd_initiator.c
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@@ -824,7 +824,7 @@ void osd_req_write(struct osd_request *or,
{
_osd_req_encode_common(or, OSD_ACT_WRITE, obj, offset, len);
WARN_ON(or->out.bio || or->out.total_bytes);
WARN_ON(0 == (bio->bi_rw & REQ_WRITE));
WARN_ON(!op_is_write(bio_op(bio)));
or->out.bio = bio;
or->out.total_bytes = len;
}
@@ -875,7 +875,7 @@ void osd_req_read(struct osd_request *or,
{
_osd_req_encode_common(or, OSD_ACT_READ, obj, offset, len);
WARN_ON(or->in.bio || or->in.total_bytes);
WARN_ON(bio->bi_rw & REQ_WRITE);
WARN_ON(op_is_write(bio_op(bio)));
or->in.bio = bio;
or->in.total_bytes = len;
}