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authorHimanshu Madhani <himanshu.madhani@qlogic.com>2015-06-10 11:05:22 -0400
committerNicholas Bellinger <nab@linux-iscsi.org>2015-07-24 14:19:25 -0700
commit6bc85dd595a5438b50ec085668e53ef26058bb90 (patch)
tree22fa0be1e04db47b8b1b2dbc7e65880ccf95af6d /drivers/scsi/qla2xxx
parente5fdee875f7918b37f7c3fce3025197d8f214a27 (diff)
downloadlinux-6bc85dd595a5438b50ec085668e53ef26058bb90.tar.bz2
qla2xxx: Remove msleep in qlt_send_term_exchange
Remove unnecessary msleep from qlt_send_term_exchange as it adds latency of 250 msec while sending terminate exchange to an aborted task. Cc: <stable@vger.kernel.org> # v3.18+ Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/scsi/qla2xxx')
-rw-r--r--drivers/scsi/qla2xxx/qla_target.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index cda443462071..2491bc9dd2a5 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -2713,7 +2713,7 @@ static int __qlt_send_term_exchange(struct scsi_qla_host *vha,
static void qlt_send_term_exchange(struct scsi_qla_host *vha,
struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked)
{
- unsigned long flags;
+ unsigned long flags = 0;
int rc;
if (qlt_issue_marker(vha, ha_locked) < 0)
@@ -2729,17 +2729,18 @@ static void qlt_send_term_exchange(struct scsi_qla_host *vha,
rc = __qlt_send_term_exchange(vha, cmd, atio);
if (rc == -ENOMEM)
qlt_alloc_qfull_cmd(vha, atio, 0, 0);
- spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
done:
if (cmd && ((cmd->state != QLA_TGT_STATE_ABORTED) ||
!cmd->cmd_sent_to_fw)) {
- if (!ha_locked && !in_interrupt())
- msleep(250); /* just in case */
-
- qlt_unmap_sg(vha, cmd);
+ if (cmd->sg_mapped)
+ qlt_unmap_sg(vha, cmd);
vha->hw->tgt.tgt_ops->free_cmd(cmd);
}
+
+ if (!ha_locked)
+ spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
+
return;
}