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IB/srp: Make writing into the "add_target" sysfs attribute interruptible

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Avoid that stopping srp_daemon takes unusually long due to a cable
pull by making writing into the "add_target" sysfs attribute
interruptible.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Bart Van Assche 2014-03-14 13:53:10 +01:00 committed by Roland Dreier
parent 2d7091bcf6
commit a702adceec
1 changed files with 8 additions and 2 deletions
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10
drivers/infiniband/ulp/srp/ib_srp.c
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@ -411,6 +411,8 @@ static void srp_path_rec_completion(int status,
static int srp_lookup_path(struct srp_target_port *target)
{
int ret;
target->path.numb_path = 1;
init_completion(&target->done);
@ -431,7 +433,9 @@ static int srp_lookup_path(struct srp_target_port *target)
if (target->path_query_id < 0)
return target->path_query_id;
wait_for_completion(&target->done);
ret = wait_for_completion_interruptible(&target->done);
if (ret < 0)
return ret;
if (target->status < 0)
shost_printk(KERN_WARNING, target->scsi_host,
@ -710,7 +714,9 @@ static int srp_connect_target(struct srp_target_port *target)
ret = srp_send_req(target);
if (ret)
return ret;
wait_for_completion(&target->done);
ret = wait_for_completion_interruptible(&target->done);
if (ret < 0)
return ret;
/*
* The CM event handling code will set status to