diff options
author | Christoph Hellwig <hch@lst.de> | 2006-06-10 18:01:03 +0200 |
---|---|---|
committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-06-10 23:24:40 +0200 |
commit | beb40487508290f5d6565598c60a3f44261beef2 (patch) | |
tree | ca63df47d8db8f1b1161b5db094b0a9c2b541d91 /drivers/scsi/scsi_lib.c | |
parent | [SCSI] mptfusion: change driver revision to 3.03.10 (diff) | |
download | linux-beb40487508290f5d6565598c60a3f44261beef2.tar.xz linux-beb40487508290f5d6565598c60a3f44261beef2.zip |
[SCSI] remove scsi_request infrastructure
With Achim patch the last user (gdth) is switched away from scsi_request
so we an kill it now. Also disables some code in i2o_scsi that was
broken since the sg driver stopped using scsi_requests.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r-- | drivers/scsi/scsi_lib.c | 80 |
1 files changed, 3 insertions, 77 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index bdce9d1f5b71..3302d8068c41 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -19,12 +19,12 @@ #include <linux/hardirq.h> #include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> #include <scsi/scsi_dbg.h> #include <scsi/scsi_device.h> #include <scsi/scsi_driver.h> #include <scsi/scsi_eh.h> #include <scsi/scsi_host.h> -#include <scsi/scsi_request.h> #include "scsi_priv.h" #include "scsi_logging.h" @@ -83,7 +83,7 @@ static void scsi_unprep_request(struct request *req) struct scsi_cmnd *cmd = req->special; req->flags &= ~REQ_DONTPREP; - req->special = (req->flags & REQ_SPECIAL) ? cmd->sc_request : NULL; + req->special = NULL; scsi_put_command(cmd); } @@ -161,72 +161,6 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason) return 0; } -/* - * Function: scsi_do_req - * - * Purpose: Queue a SCSI request - * - * Arguments: sreq - command descriptor. - * cmnd - actual SCSI command to be performed. - * buffer - data buffer. - * bufflen - size of data buffer. - * done - completion function to be run. - * timeout - how long to let it run before timeout. - * retries - number of retries we allow. - * - * Lock status: No locks held upon entry. - * - * Returns: Nothing. - * - * Notes: This function is only used for queueing requests for things - * like ioctls and character device requests - this is because - * we essentially just inject a request into the queue for the - * device. - * - * In order to support the scsi_device_quiesce function, we - * now inject requests on the *head* of the device queue - * rather than the tail. - */ -void scsi_do_req(struct scsi_request *sreq, const void *cmnd, - void *buffer, unsigned bufflen, - void (*done)(struct scsi_cmnd *), - int timeout, int retries) -{ - /* - * If the upper level driver is reusing these things, then - * we should release the low-level block now. Another one will - * be allocated later when this request is getting queued. - */ - __scsi_release_request(sreq); - - /* - * Our own function scsi_done (which marks the host as not busy, - * disables the timeout counter, etc) will be called by us or by the - * scsi_hosts[host].queuecommand() function needs to also call - * the completion function for the high level driver. - */ - memcpy(sreq->sr_cmnd, cmnd, sizeof(sreq->sr_cmnd)); - sreq->sr_bufflen = bufflen; - sreq->sr_buffer = buffer; - sreq->sr_allowed = retries; - sreq->sr_done = done; - sreq->sr_timeout_per_command = timeout; - - if (sreq->sr_cmd_len == 0) - sreq->sr_cmd_len = COMMAND_SIZE(sreq->sr_cmnd[0]); - - /* - * head injection *required* here otherwise quiesce won't work - * - * Because users of this function are apt to reuse requests with no - * modification, we have to sanitise the request flags here - */ - sreq->sr_request->flags &= ~REQ_DONTPREP; - blk_insert_request(sreq->sr_device->request_queue, sreq->sr_request, - 1, sreq); -} -EXPORT_SYMBOL(scsi_do_req); - /** * scsi_execute - insert request and wait for the result * @sdev: scsi device @@ -1300,15 +1234,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req) * at request->cmd, as this tells us the real story. */ if (req->flags & REQ_SPECIAL && req->special) { - struct scsi_request *sreq = req->special; - - if (sreq->sr_magic == SCSI_REQ_MAGIC) { - cmd = scsi_get_command(sreq->sr_device, GFP_ATOMIC); - if (unlikely(!cmd)) - goto defer; - scsi_init_cmd_from_req(cmd, sreq); - } else - cmd = req->special; + cmd = req->special; } else if (req->flags & (REQ_CMD | REQ_BLOCK_PC)) { if(unlikely(specials_only) && !(req->flags & REQ_SPECIAL)) { |