Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 45239
b: refs/heads/master
c: 406c9b6
h: refs/heads/master
i:
  45237: 2e90073
  45235: 8b79313
  45231: dc7d0f5
v: v3
  • Loading branch information
Christoph Hellwig authored and Linus Torvalds committed Jan 6, 2007
1 parent a752f51 commit 8cae09c
Show file tree
Hide file tree
Showing 2 changed files with 19 additions and 32 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: d73e3cd73c058ce792ad276f979680aa331f4f8e
refs/heads/master: 406c9b605cbc45151c03ac9a3f95e9acf050808c
49 changes: 18 additions & 31 deletions trunk/drivers/block/pktcdvd.c
Original file line number Diff line number Diff line change
Expand Up @@ -765,47 +765,34 @@ static inline struct bio *pkt_get_list_first(struct bio **list_head, struct bio
*/
static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *cgc)
{
char sense[SCSI_SENSE_BUFFERSIZE];
request_queue_t *q;
request_queue_t *q = bdev_get_queue(pd->bdev);
struct request *rq;
DECLARE_COMPLETION_ONSTACK(wait);
int err = 0;
int ret = 0;

q = bdev_get_queue(pd->bdev);
rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ?
WRITE : READ, __GFP_WAIT);

if (cgc->buflen) {
if (blk_rq_map_kern(q, rq, cgc->buffer, cgc->buflen, __GFP_WAIT))
goto out;
}

rq->cmd_len = COMMAND_SIZE(rq->cmd[0]);
memcpy(rq->cmd, cgc->cmd, CDROM_PACKET_SIZE);
if (sizeof(rq->cmd) > CDROM_PACKET_SIZE)
memset(rq->cmd + CDROM_PACKET_SIZE, 0, sizeof(rq->cmd) - CDROM_PACKET_SIZE);

rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ? WRITE : READ,
__GFP_WAIT);
rq->errors = 0;
rq->rq_disk = pd->bdev->bd_disk;
rq->bio = NULL;
rq->buffer = NULL;
rq->timeout = 60*HZ;
rq->data = cgc->buffer;
rq->data_len = cgc->buflen;
rq->sense = sense;
memset(sense, 0, sizeof(sense));
rq->sense_len = 0;
rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->cmd_flags |= REQ_HARDBARRIER;
if (cgc->quiet)
rq->cmd_flags |= REQ_QUIET;
memcpy(rq->cmd, cgc->cmd, CDROM_PACKET_SIZE);
if (sizeof(rq->cmd) > CDROM_PACKET_SIZE)
memset(rq->cmd + CDROM_PACKET_SIZE, 0, sizeof(rq->cmd) - CDROM_PACKET_SIZE);
rq->cmd_len = COMMAND_SIZE(rq->cmd[0]);

rq->ref_count++;
rq->end_io_data = &wait;
rq->end_io = blk_end_sync_rq;
elv_add_request(q, rq, ELEVATOR_INSERT_BACK, 1);
generic_unplug_device(q);
wait_for_completion(&wait);

if (rq->errors)
err = -EIO;

blk_execute_rq(rq->q, pd->bdev->bd_disk, rq, 0);
ret = rq->errors;
out:
blk_put_request(rq);
return err;
return ret;
}

/*
Expand Down

0 comments on commit 8cae09c

Please sign in to comment.