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authorBart Van Assche <bvanassche@acm.org>2014-03-14 13:53:10 +0100
committerRoland Dreier <roland@purestorage.com>2014-03-24 10:05:31 -0700
commita702adceec3eeee23d95a81a0663661e7c25ad9c (patch)
tree815a42566f0576b7921d36df89e0eda8c55d9eec /drivers/infiniband/ulp
parent2d7091bcf6f893a9b1a2add357c637055eae4e68 (diff)
downloadblackbird-op-linux-a702adceec3eeee23d95a81a0663661e7c25ad9c.tar.gz
blackbird-op-linux-a702adceec3eeee23d95a81a0663661e7c25ad9c.zip
IB/srp: Make writing into the "add_target" sysfs attribute interruptible
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>
Diffstat (limited to 'drivers/infiniband/ulp')
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 3294f10316a0..481c873f735e 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -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
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