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authorChristoph Hellwig <hch@lst.de>2005-10-31 20:03:48 +0100
committerJames Bottomley <jejb@mulgrave.(none)>2005-11-06 12:51:58 -0600
commit6d5e9fd1964e653fa538b020af351d3c9f609c07 (patch)
treed8e54cf888a53e27930ee4448630b7c9729cd470 /drivers
parentcb0258a2fb8e434b3b56856603754d998008d9ee (diff)
downloadlinux-0-day-6d5e9fd1964e653fa538b020af351d3c9f609c07.tar.gz
linux-0-day-6d5e9fd1964e653fa538b020af351d3c9f609c07.tar.xz
[SCSI] aic7xxx: remove scsi_assign_lock usage
just take the internal lock in queuecommand instead. also switch the only direct use of the internal lock to the wrappers used elsewhere. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/scsi/aic7xxx/aic7xxx_osm.c39
1 files changed, 16 insertions, 23 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 1861407422e4a..7fc6454068e47 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -476,26 +476,20 @@ ahc_linux_queue(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *))
{
struct ahc_softc *ahc;
struct ahc_linux_device *dev = scsi_transport_device_data(cmd->device);
+ int rtn = SCSI_MLQUEUE_HOST_BUSY;
+ unsigned long flags;
ahc = *(struct ahc_softc **)cmd->device->host->hostdata;
- /*
- * Save the callback on completion function.
- */
- cmd->scsi_done = scsi_done;
-
- /*
- * Close the race of a command that was in the process of
- * being queued to us just as our simq was frozen. Let
- * DV commands through so long as we are only frozen to
- * perform DV.
- */
- if (ahc->platform_data->qfrozen != 0)
- return SCSI_MLQUEUE_HOST_BUSY;
-
- cmd->result = CAM_REQ_INPROG << 16;
+ ahc_lock(ahc, &flags);
+ if (ahc->platform_data->qfrozen == 0) {
+ cmd->scsi_done = scsi_done;
+ cmd->result = CAM_REQ_INPROG << 16;
+ rtn = ahc_linux_run_command(ahc, dev, cmd);
+ }
+ ahc_unlock(ahc, &flags);
- return ahc_linux_run_command(ahc, dev, cmd);
+ return rtn;
}
static inline struct scsi_target **
@@ -1079,7 +1073,6 @@ ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *templa
*((struct ahc_softc **)host->hostdata) = ahc;
ahc_lock(ahc, &s);
- scsi_assign_lock(host, &ahc->platform_data->spin_lock);
ahc->platform_data->host = host;
host->can_queue = AHC_MAX_QUEUE;
host->cmd_per_lun = 2;
@@ -2111,6 +2104,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
int paused;
int wait;
int disconnected;
+ unsigned long flags;
pending_scb = NULL;
paused = FALSE;
@@ -2125,7 +2119,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
printf(" 0x%x", cmd->cmnd[cdb_byte]);
printf("\n");
- spin_lock_irq(&ahc->platform_data->spin_lock);
+ ahc_lock(ahc, &flags);
/*
* First determine if we currently own this command.
@@ -2357,7 +2351,8 @@ done:
int ret;
ahc->platform_data->flags |= AHC_UP_EH_SEMAPHORE;
- spin_unlock_irq(&ahc->platform_data->spin_lock);
+ ahc_unlock(ahc, &flags);
+
init_timer(&timer);
timer.data = (u_long)ahc;
timer.expires = jiffies + (5 * HZ);
@@ -2371,10 +2366,8 @@ done:
printf("Timer Expired\n");
retval = FAILED;
}
- spin_lock_irq(&ahc->platform_data->spin_lock);
- }
-
- spin_unlock_irq(&ahc->platform_data->spin_lock);
+ } else
+ ahc_unlock(ahc, &flags);
return (retval);
}