[SCSI] libosd: Let _osd_req_finalize_data_integrity receive number of out_bytes

_osd_req_finalize_data_integrity was trying to deduce the number of
out_bytes from passed osd_request->out.bio. This is wrong when
the bio is chained. The caller of _osd_req_finalize_data_integrity
has more ready available information and should just pass it.

Also in the light of future support for CDB-continuation segment this is
a better solution.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index c98153bfb36d..ba2ebae305cd 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -1262,7 +1262,7 @@ static inline void osd_sec_parms_set_in_offset(bool is_v1,
 }
 
 static int _osd_req_finalize_data_integrity(struct osd_request *or,
-        bool has_in, bool has_out, const u8 *cap_key)
+        bool has_in, bool has_out, u64 out_data_bytes, const u8 *cap_key)
 {
         struct osd_security_parameters *sec_parms = _osd_req_sec_params(or);
         int ret;
@@ -1277,8 +1277,7 @@ static int _osd_req_finalize_data_integrity(struct osd_request *or,
                 };
                 unsigned pad;
 
-                or->out_data_integ.data_bytes = cpu_to_be64(
-                        or->out.bio ? or->out.bio->bi_size : 0);
+                or->out_data_integ.data_bytes = cpu_to_be64(out_data_bytes);
                 or->out_data_integ.set_attributes_bytes = cpu_to_be64(
                         or->set_attr.total_bytes);
                 or->out_data_integ.get_attributes_bytes = cpu_to_be64(
@@ -1370,6 +1369,7 @@ int osd_finalize_request(struct osd_request *or,
 {
         struct osd_cdb_head *cdbh = osd_cdb_head(&or->cdb);
         bool has_in, has_out;
+        u64 out_data_bytes = or->out.total_bytes;
         int ret;
 
         if (options & OSD_REQ_FUA)
@@ -1439,7 +1439,8 @@ int osd_finalize_request(struct osd_request *or,
                 }
         }
 
-        ret = _osd_req_finalize_data_integrity(or, has_in, has_out, cap_key);
+        ret = _osd_req_finalize_data_integrity(or, has_in, has_out,
+                                               out_data_bytes, cap_key);
         if (ret)
                 return ret;