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authorBart Van Assche <bvanassche@acm.org>2013-02-21 17:18:00 +0000
committerRoland Dreier <roland@purestorage.com>2013-02-25 09:31:14 -0800
commit3780d1f08856f692116bcf026e4acf1c521df1c7 (patch)
tree0d7c14403767836e3dae755e836b2dfcf53cde15 /drivers/infiniband
parente1b2f13aba9ff714d23ecd4a950e744ee7ad72e1 (diff)
downloadlinux-3780d1f08856f692116bcf026e4acf1c521df1c7.tar.bz2
IB/srp: Avoid sending a task management function needlessly
Do not send a task management function if sending will fail anyway because either there is no RDMA/RC connection or the QP is in the error state. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dave@thedillows.org> Cc: <stable@vger.kernel.org> # 3.8 Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 94f76b9319c1..263325848462 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1695,6 +1695,9 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
struct srp_iu *iu;
struct srp_tsk_mgmt *tsk_mgmt;
+ if (!target->connected || target->qp_in_error)
+ return -1;
+
init_completion(&target->tsk_mgmt_done);
spin_lock_irq(&target->lock);
@@ -1754,8 +1757,6 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
- if (target->qp_in_error)
- return FAILED;
if (srp_send_tsk_mgmt(target, SRP_TAG_NO_REQ, scmnd->device->lun,
SRP_TSK_LUN_RESET))
return FAILED;