Driver was not freeing the memory allocated for internal nullb queues.
This patch frees the memory during driver unload.
Signed-off-by: Matias Bjørling <m...@lightnvm.io>
---
drivers/block/null_blk.c | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index 69de41a..90f6781 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -406,6 +406,22 @@ static struct blk_mq_ops null_mq_ops = {
.complete = null_softirq_done_fn,
};
+static void cleanup_queue(struct nullb_queue *nq)
+{
+ kfree(nq->tag_map);
+ kfree(nq->cmds);
+}
+
+static void cleanup_queues(struct nullb *nullb)
+{
+ int i;
+
+ for (i = 0; i < nullb->nr_queues; i++)
+ cleanup_queue(&nullb->queues[i]);
+
+ kfree(nullb->queues);
+}
+
static void null_del_dev(struct nullb *nullb)
{
list_del_init(&nullb->list);
@@ -415,6 +431,7 @@ static void null_del_dev(struct nullb *nullb)
if (queue_mode == NULL_Q_MQ)
blk_mq_free_tag_set(&nullb->tag_set);
put_disk(nullb->disk);
+ cleanup_queues(nullb);
kfree(nullb);
}
@@ -459,22 +476,6 @@ static int setup_commands(struct nullb_queue *nq)
return 0;
}
-static void cleanup_queue(struct nullb_queue *nq)
-{
- kfree(nq->tag_map);
- kfree(nq->cmds);
-}
-
-static void cleanup_queues(struct nullb *nullb)
-{
- int i;
-
- for (i = 0; i < nullb->nr_queues; i++)
- cleanup_queue(&nullb->queues[i]);
-
- kfree(nullb->queues);
-}
-
static int setup_queues(struct nullb *nullb)
{
nullb->queues = kzalloc(submit_queues * sizeof(struct nullb_queue),
--
2.1.4
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