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authorBart Van Assche <bvanassche@acm.org>2013-10-10 13:52:33 +0200
committerRoland Dreier <roland@purestorage.com>2013-11-08 23:43:18 +0100
commit99b6697a50c2acbe3ca2772d359fc9a28835dc84 (patch)
tree2c3721c4c7b8f5722e28ec31ef95076f7b0c5381
parentIB/srp: Remove target from list before freeing Scsi_Host structure (diff)
downloadlinux-99b6697a50c2acbe3ca2772d359fc9a28835dc84.tar.xz
linux-99b6697a50c2acbe3ca2772d359fc9a28835dc84.zip
IB/srp: Avoid offlining operational SCSI devices
If SCSI commands are submitted with a SCSI request timeout that is lower than the the IB RC timeout, it can happen that the SCSI error handler has already started device recovery before transport layer error handling starts. So it can happen that the SCSI error handler tries to abort a SCSI command after it has been reset by srp_rport_reconnect(). Tell the SCSI error handler that such commands have finished and that it is not necessary to continue its recovery strategy for commands that have been reset by srp_rport_reconnect(). Signed-off-by: Bart Van Assche <bvanassche@acm.org> Cc: <stable@vger.kernel.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a8c06c4451c0..4bf2f9feb59a 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2000,7 +2000,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
shost_printk(KERN_ERR, target->scsi_host, "SRP abort called\n");
if (!req || !srp_claim_req(target, req, scmnd))
- return FAILED;
+ return SUCCESS;
if (srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
SRP_TSK_ABORT_TASK) == 0)
ret = SUCCESS;