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libosd: Use of new blk_make_request 

Use new blk_make_request() to allocate a request from bio
and avoid using deprecated blk_rq_append_bio().

This patch is dependent on a block layer patch titled:
    [BLOCK] New blk_make_request() takes bio returns request

This is the last usage of blk_rq_append_bio in osd, it can now
be un-exported.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
CC: Jeff Garzik <jeff@garzik.org>
CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Boaz Harrosh 2009-05-17 18:58:41 +03:00 committed by Jens Axboe
parent 79eb63e9e5
commit c29b70f6ee
1 changed files with 23 additions and 25 deletions
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48
drivers/scsi/osd/osd_initiator.c
View File

@ -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;