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author | Jens Axboe <axboe@suse.de> | 2006-01-09 16:03:03 +0100 |
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committer | Jens Axboe <axboe@suse.de> | 2006-01-09 16:03:03 +0100 |
commit | 1aea6434eebd25e532d2e5ddabf2733af4e1ff0b (patch) | |
tree | b82aa8135d9c9f01a779be1977c0398cf2b406a8 /drivers/scsi/scsi_lib.c | |
parent | ff856bad67cb65cb4dc4ef88b808804fc4265782 (diff) | |
download | kernel_samsung_smdk4412-1aea6434eebd25e532d2e5ddabf2733af4e1ff0b.zip kernel_samsung_smdk4412-1aea6434eebd25e532d2e5ddabf2733af4e1ff0b.tar.gz kernel_samsung_smdk4412-1aea6434eebd25e532d2e5ddabf2733af4e1ff0b.tar.bz2 |
[SCSI] Kill the SCSI softirq handling
This patch moves the SCSI softirq handling to the block layer version.
There should be no functional changes.
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r-- | drivers/scsi/scsi_lib.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index ba93d6e..00c9bf3 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1493,6 +1493,41 @@ static void scsi_kill_request(struct request *req, request_queue_t *q) __scsi_done(cmd); } +static void scsi_softirq_done(struct request *rq) +{ + struct scsi_cmnd *cmd = rq->completion_data; + unsigned long wait_for = cmd->allowed * cmd->timeout_per_command; + int disposition; + + INIT_LIST_HEAD(&cmd->eh_entry); + + disposition = scsi_decide_disposition(cmd); + if (disposition != SUCCESS && + time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) { + sdev_printk(KERN_ERR, cmd->device, + "timing out command, waited %lus\n", + wait_for/HZ); + disposition = SUCCESS; + } + + scsi_log_completion(cmd, disposition); + + switch (disposition) { + case SUCCESS: + scsi_finish_command(cmd); + break; + case NEEDS_RETRY: + scsi_retry_command(cmd); + break; + case ADD_TO_MLQUEUE: + scsi_queue_insert(cmd, SCSI_MLQUEUE_DEVICE_BUSY); + break; + default: + if (!scsi_eh_scmd_add(cmd, 0)) + scsi_finish_command(cmd); + } +} + /* * Function: scsi_request_fn() * @@ -1667,6 +1702,7 @@ struct request_queue *scsi_alloc_queue(struct scsi_device *sdev) blk_queue_bounce_limit(q, scsi_calculate_bounce_limit(shost)); blk_queue_segment_boundary(q, shost->dma_boundary); blk_queue_issue_flush_fn(q, scsi_issue_flush_fn); + blk_queue_softirq_done(q, scsi_softirq_done); if (!shost->use_clustering) clear_bit(QUEUE_FLAG_CLUSTER, &q->queue_flags); |