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-rw-r--r--block/bsg-lib.c17
-rw-r--r--drivers/scsi/scsi_transport_fc.c4
-rw-r--r--include/linux/bsg-lib.h3
3 files changed, 18 insertions, 6 deletions
diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index 6661f823db4c..803ec40ebd6d 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -32,7 +32,7 @@
* bsg_destroy_job - routine to teardown/delete a bsg job
* @job: bsg_job that is to be torn down
*/
-void bsg_destroy_job(struct kref *kref)
+static void bsg_destroy_job(struct kref *kref)
{
struct bsg_job *job = container_of(kref, struct bsg_job, kref);
struct request *rq = job->req;
@@ -45,7 +45,18 @@ void bsg_destroy_job(struct kref *kref)
kfree(job->reply_payload.sg_list);
kfree(job);
}
-EXPORT_SYMBOL_GPL(bsg_destroy_job);
+
+void bsg_job_put(struct bsg_job *job)
+{
+ kref_put(&job->kref, bsg_destroy_job);
+}
+EXPORT_SYMBOL_GPL(bsg_job_put);
+
+int bsg_job_get(struct bsg_job *job)
+{
+ return kref_get_unless_zero(&job->kref);
+}
+EXPORT_SYMBOL_GPL(bsg_job_get);
/**
* bsg_job_done - completion routine for bsg requests
@@ -89,7 +100,7 @@ void bsg_softirq_done(struct request *rq)
{
struct bsg_job *job = rq->special;
- kref_put(&job->kref, bsg_destroy_job);
+ bsg_job_put(job);
}
EXPORT_SYMBOL_GPL(bsg_softirq_done);
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index ee1e812bad4c..23e1eed932b5 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -3571,13 +3571,13 @@ fc_bsg_job_timeout(struct request *req)
if (rport && rport->port_state == FC_PORTSTATE_BLOCKED)
return BLK_EH_RESET_TIMER;
- inflight = kref_get_unless_zero(&job->kref);
+ inflight = bsg_job_get(job);
if (inflight && i->f->bsg_timeout) {
/* call LLDD to abort the i/o as it has timed out */
err = i->f->bsg_timeout(job);
if (err == -EAGAIN) {
- kref_put(&job->kref, bsg_destroy_job);
+ bsg_job_put(job);
return BLK_EH_RESET_TIMER;
} else if (err)
printk(KERN_ERR "ERROR: FC BSG request timeout - LLD "
diff --git a/include/linux/bsg-lib.h b/include/linux/bsg-lib.h
index 09f304437cd6..b708db91618f 100644
--- a/include/linux/bsg-lib.h
+++ b/include/linux/bsg-lib.h
@@ -69,7 +69,8 @@ void bsg_job_done(struct bsg_job *job, int result,
int bsg_setup_queue(struct device *dev, struct request_queue *q, char *name,
bsg_job_fn *job_fn, int dd_job_size);
void bsg_request_fn(struct request_queue *q);
-void bsg_destroy_job(struct kref *kref);
void bsg_softirq_done(struct request *rq);
+void bsg_job_put(struct bsg_job *job);
+int __must_check bsg_job_get(struct bsg_job *job);
#endif