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authorJeff Garzik <jgarzik@pobox.com>2005-05-28 07:47:39 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-06-17 12:04:37 -0500
commite3df715501be3329986e5d9dfa9a477f49e7996b (patch)
tree3602c4bbca8bca9b615b93099de53717bc932591
parent12021fff2bae7fab01c4bf283f3cd9bc6997d8c4 (diff)
downloadop-kernel-dev-e3df715501be3329986e5d9dfa9a477f49e7996b.zip
op-kernel-dev-e3df715501be3329986e5d9dfa9a477f49e7996b.tar.gz
[SCSI] Remove unnecessary locking around completion function calls
The SCSI ->done() hook should not be called from inside a spinlock. Drivers that do this are mostly cut-n-paste from 2.2.x-era. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
-rw-r--r--drivers/fc4/fc.c4
-rw-r--r--drivers/ieee1394/sbp2.c6
-rw-r--r--drivers/scsi/ultrastor.c2
3 files changed, 0 insertions, 12 deletions
diff --git a/drivers/fc4/fc.c b/drivers/fc4/fc.c
index 1fbb219..d9e11b5 100644
--- a/drivers/fc4/fc.c
+++ b/drivers/fc4/fc.c
@@ -767,10 +767,8 @@ static void fcp_scsi_done (Scsi_Cmnd *SCpnt)
{
unsigned long flags;
- spin_lock_irqsave(SCpnt->device->host->host_lock, flags);
if (FCP_CMND(SCpnt)->done)
FCP_CMND(SCpnt)->done(SCpnt);
- spin_unlock_irqrestore(SCpnt->device->host->host_lock, flags);
}
static int fcp_scsi_queue_it(fc_channel *fc, Scsi_Cmnd *SCpnt, fcp_cmnd *fcmd, int prepare)
@@ -912,9 +910,7 @@ int fcp_scsi_abort(Scsi_Cmnd *SCpnt)
unsigned long flags;
SCpnt->result = DID_ABORT;
- spin_lock_irqsave(SCpnt->device->host->host_lock, flags);
fcmd->done(SCpnt);
- spin_unlock_irqrestore(SCpnt->device->host->host_lock, flags);
printk("FC: soft abort\n");
return SUCCESS;
} else {
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index aa94102..de55248 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -2453,8 +2453,6 @@ static void sbp2scsi_complete_command(struct scsi_id_instance_data *scsi_id,
u32 scsi_status, struct scsi_cmnd *SCpnt,
void (*done)(struct scsi_cmnd *))
{
- unsigned long flags;
-
SBP2_DEBUG("sbp2scsi_complete_command");
/*
@@ -2553,11 +2551,7 @@ static void sbp2scsi_complete_command(struct scsi_id_instance_data *scsi_id,
/*
* Tell scsi stack that we're done with this command
*/
- spin_lock_irqsave(scsi_id->scsi_host->host_lock,flags);
done (SCpnt);
- spin_unlock_irqrestore(scsi_id->scsi_host->host_lock,flags);
-
- return;
}
diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c
index 97f4d91..2c17470 100644
--- a/drivers/scsi/ultrastor.c
+++ b/drivers/scsi/ultrastor.c
@@ -954,9 +954,7 @@ static int ultrastor_abort(Scsi_Cmnd *SCpnt)
SCpnt->result = DID_ABORT << 16;
/* Take the host lock to guard against scsi layer re-entry */
- spin_lock_irqsave(host->host_lock, flags);
done(SCpnt);
- spin_unlock_irqrestore(host->host_lock, flags);
/* Need to set a timeout here in case command never completes. */
return SUCCESS;
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