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block: Remove some unnecessary bi_vcnt usage

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More prep work for immutable bvecs/effecient bio splitting - usage of
bi_vcnt has to be auditing, so getting rid of all the unnecessary usage
makes that easier.

Plus, bio_segments() is really what this code wanted, as it respects the
current value of bi_idx.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Eric Moore <Eric.Moore@lsi.com>
CC: "James E.J. Bottomley" <JBottomley@parallels.com>
CC: linux-scsi@vger.kernel.org
This commit is contained in:
Kent Overstreet 2012-09-05 17:31:42 -07:00
parent 4f2ac93c17
commit 2f477877f8
3 changed files with 11 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/scsi/libsas/sas_expander.c
View file

@ -2151,10 +2151,10 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
}
/* do we need to support multiple segments? */
if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
if (bio_segments(req->bio) > 1 || bio_segments(rsp->bio) > 1) {
printk("%s: multiple segments req %u %u, rsp %u %u\n",
__func__, req->bio->bi_vcnt, blk_rq_bytes(req),
rsp->bio->bi_vcnt, blk_rq_bytes(rsp));
__func__, bio_segments(req->bio), blk_rq_bytes(req),
bio_segments(rsp->bio), blk_rq_bytes(rsp));
return -EINVAL;
}