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path: root/drivers/scsi/osd/osd_initiator.c
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Diffstat (limited to 'drivers/scsi/osd/osd_initiator.c')
-rw-r--r--drivers/scsi/osd/osd_initiator.c48
1 files changed, 23 insertions, 25 deletions
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index bf66e301866..865ec0f4aa8 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -1200,6 +1200,21 @@ static int _osd_req_finalize_data_integrity(struct osd_request *or,
/*
* osd_finalize_request and helpers
*/
+static struct request *_make_request(struct request_queue *q, bool has_write,
+ struct _osd_io_info *oii, gfp_t flags)
+{
+ if (oii->bio)
+ return blk_make_request(q, oii->bio, flags);
+ else {
+ struct request *req;
+
+ req = blk_get_request(q, has_write ? WRITE : READ, flags);
+ if (unlikely(!req))
+ return ERR_PTR(-ENOMEM);
+
+ return req;
+ }
+}
static int _init_blk_request(struct osd_request *or,
bool has_in, bool has_out)
@@ -1208,11 +1223,13 @@ static int _init_blk_request(struct osd_request *or,
struct scsi_device *scsi_device = or->osd_dev->scsi_device;
struct request_queue *q = scsi_device->request_queue;
struct request *req;
- int ret = -ENOMEM;
+ int ret;
- req = blk_get_request(q, has_out, flags);
- if (!req)
+ req = _make_request(q, has_out, has_out ? &or->out : &or->in, flags);
+ if (IS_ERR(req)) {
+ ret = PTR_ERR(req);
goto out;
+ }
or->request = req;
req->cmd_type = REQ_TYPE_BLOCK_PC;
@@ -1225,9 +1242,10 @@ static int _init_blk_request(struct osd_request *or,
or->out.req = req;
if (has_in) {
/* allocate bidi request */
- req = blk_get_request(q, READ, flags);
- if (!req) {
+ req = _make_request(q, false, &or->in, flags);
+ if (IS_ERR(req)) {
OSD_DEBUG("blk_get_request for bidi failed\n");
+ ret = PTR_ERR(req);
goto out;
}
req->cmd_type = REQ_TYPE_BLOCK_PC;
@@ -1271,26 +1289,6 @@ int osd_finalize_request(struct osd_request *or,
return ret;
}
- if (or->out.bio) {
- ret = blk_rq_append_bio(or->request->q, or->out.req,
- or->out.bio);
- if (ret) {
- OSD_DEBUG("blk_rq_append_bio out failed\n");
- return ret;
- }
- OSD_DEBUG("out bytes=%llu (bytes_req=%u)\n",
- _LLU(or->out.total_bytes), blk_rq_bytes(or->out.req));
- }
- if (or->in.bio) {
- ret = blk_rq_append_bio(or->request->q, or->in.req, or->in.bio);
- if (ret) {
- OSD_DEBUG("blk_rq_append_bio in failed\n");
- return ret;
- }
- OSD_DEBUG("in bytes=%llu (bytes_req=%u)\n",
- _LLU(or->in.total_bytes), blk_rq_bytes(or->in.req));
- }
-
or->out.pad_buff = sg_out_pad_buffer;
or->in.pad_buff = sg_in_pad_buffer;