According to Documentation/RCU/Design/Requirements/Requirements.html
calling these functions is not necessary for dynamically allocated
objects:
The corresponding <tt>rcu_head</tt> structures that are
dynamically allocated are automatically tracked, but
<tt>rcu_head</tt> structures allocated on the stack
must be initialized with <tt>init_rcu_head_on_stack()</tt>
and cleaned up with <tt>destroy_rcu_head_on_stack()</tt>.
Similarly, statically allocated non-stack <tt>rcu_head</tt>
structures must be initialized with <tt>init_rcu_head()</tt>
and cleaned up with <tt>destroy_rcu_head()</tt>.
Hence remove the calls to these functions from the SCSI core.
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx>
---
drivers/scsi/hosts.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index a0a7e4ff255c..7279d3d2e941 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -334,8 +334,6 @@ static void scsi_host_dev_release(struct device *dev)
if (shost->work_q)
destroy_workqueue(shost->work_q);
- destroy_rcu_head(&shost->rcu);
-
if (shost->shost_state == SHOST_CREATED) {
/*
* Free the shost_dev device name here if scsi_host_alloc()
@@ -404,7 +402,6 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
INIT_LIST_HEAD(&shost->starved_list);
init_waitqueue_head(&shost->host_wait);
mutex_init(&shost->scan_mutex);
- init_rcu_head(&shost->rcu);
index = ida_simple_get(&host_index_ida, 0, 0, GFP_KERNEL);
if (index < 0)
--
2.15.1
