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authorJens Axboe <jens.axboe@oracle.com>2008-09-14 05:55:09 -0700
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 08:56:13 +0200
commit242f9dcb8ba6f68fcd217a119a7648a4f69290e9 (patch)
tree1bfe245ffbc50d204d76665cd8f90d85100f86a1 /drivers/scsi/libsas/sas_scsi_host.c
parent608aeef17a91747d6303de4df5e2c2e6899a95e8 (diff)
block: unify request timeout handling
Right now SCSI and others do their own command timeout handling. Move those bits to the block layer. Instead of having a timer per command, we try to be a bit more clever and simply have one per-queue. This avoids the overhead of having to tear down and setup a timer for each command, so it will result in a lot less timer fiddling. Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/scsi/libsas/sas_scsi_host.c')
-rw-r--r--drivers/scsi/libsas/sas_scsi_host.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index a8e3ef30907..744838780ad 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -673,43 +673,43 @@ out:
return;
}
-enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *cmd)
+enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *cmd)
{
struct sas_task *task = TO_SAS_TASK(cmd);
unsigned long flags;
if (!task) {
- cmd->timeout_per_command /= 2;
+ cmd->request->timeout /= 2;
SAS_DPRINTK("command 0x%p, task 0x%p, gone: %s\n",
- cmd, task, (cmd->timeout_per_command ?
- "EH_RESET_TIMER" : "EH_NOT_HANDLED"));
- if (!cmd->timeout_per_command)
- return EH_NOT_HANDLED;
- return EH_RESET_TIMER;
+ cmd, task, (cmd->request->timeout ?
+ "BLK_EH_RESET_TIMER" : "BLK_EH_NOT_HANDLED"));
+ if (!cmd->request->timeout)
+ return BLK_EH_NOT_HANDLED;
+ return BLK_EH_RESET_TIMER;
}
spin_lock_irqsave(&task->task_state_lock, flags);
BUG_ON(task->task_state_flags & SAS_TASK_STATE_ABORTED);
if (task->task_state_flags & SAS_TASK_STATE_DONE) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
- SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_HANDLED\n",
- cmd, task);
- return EH_HANDLED;
+ SAS_DPRINTK("command 0x%p, task 0x%p, timed out: "
+ "BLK_EH_HANDLED\n", cmd, task);
+ return BLK_EH_HANDLED;
}
if (!(task->task_state_flags & SAS_TASK_AT_INITIATOR)) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
SAS_DPRINTK("command 0x%p, task 0x%p, not at initiator: "
- "EH_RESET_TIMER\n",
+ "BLK_EH_RESET_TIMER\n",
cmd, task);
- return EH_RESET_TIMER;
+ return BLK_EH_RESET_TIMER;
}
task->task_state_flags |= SAS_TASK_STATE_ABORTED;
spin_unlock_irqrestore(&task->task_state_lock, flags);
- SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_NOT_HANDLED\n",
+ SAS_DPRINTK("command 0x%p, task 0x%p, timed out: BLK_EH_NOT_HANDLED\n",
cmd, task);
- return EH_NOT_HANDLED;
+ return BLK_EH_NOT_HANDLED;
}
int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
@@ -1039,7 +1039,7 @@ void sas_task_abort(struct sas_task *task)
return;
}
- scsi_req_abort_cmd(sc);
+ blk_abort_request(sc->request);
scsi_schedule_eh(sc->device->host);
}