[SCSI] libosd: osd_req_{read,write} takes a length parameter
For supporting of chained-bios we can not inspect the first
bio only, as before. Caller shall pass the total length of the
request, ie. sum_bytes(bio-chain).
Also since the bio might be a chain we don't set it's direction
on behalf of it's callers. The bio direction should be properly
set prior to this call. So fix a couple of write users that now
need to set the bio direction properly
[In this patch I change both library code and user sites at
exofs, to make it easy on integration. It should be submitted
via James's scsi-misc tree.]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
CC: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index 6132790..8c1e3b8 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -363,7 +363,7 @@
void osd_req_remove_object(struct osd_request *or, struct osd_obj_id *);
void osd_req_write(struct osd_request *or,
- const struct osd_obj_id *, struct bio *data_out, u64 offset);
+ const struct osd_obj_id *obj, u64 offset, struct bio *bio, u64 len);
int osd_req_write_kern(struct osd_request *or,
const struct osd_obj_id *obj, u64 offset, void *buff, u64 len);
void osd_req_append(struct osd_request *or,
@@ -380,7 +380,7 @@
/*V2*/ u64 offset, /*V2*/ u64 len);
void osd_req_read(struct osd_request *or,
- const struct osd_obj_id *, struct bio *data_in, u64 offset);
+ const struct osd_obj_id *obj, u64 offset, struct bio *bio, u64 len);
int osd_req_read_kern(struct osd_request *or,
const struct osd_obj_id *obj, u64 offset, void *buff, u64 len);