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-rw-r--r--block/bfq-iosched.c4
-rw-r--r--block/sed-opal.c32
2 files changed, 31 insertions, 5 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index a9f42df92..7415db053 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -416,6 +416,8 @@ static struct bfq_io_cq *bfq_bic_lookup(struct bfq_data *bfqd,
*/
void bfq_schedule_dispatch(struct bfq_data *bfqd)
{
+ lockdep_assert_held(&bfqd->lock);
+
if (bfqd->queued != 0) {
bfq_log(bfqd, "schedule dispatch");
blk_mq_run_hw_queues(bfqd->queue, true);
@@ -5278,8 +5280,8 @@ bfq_idle_slice_timer_body(struct bfq_data *bfqd, struct bfq_queue *bfqq)
bfq_bfqq_expire(bfqd, bfqq, true, reason);
schedule_dispatch:
- spin_unlock_irqrestore(&bfqd->lock, flags);
bfq_schedule_dispatch(bfqd);
+ spin_unlock_irqrestore(&bfqd->lock, flags);
}
/*
diff --git a/block/sed-opal.c b/block/sed-opal.c
index 119640897..9651c40e0 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -94,8 +94,8 @@ struct opal_dev {
u64 lowest_lba;
size_t pos;
- u8 cmd[IO_BUFFER_LENGTH];
- u8 resp[IO_BUFFER_LENGTH];
+ u8 *cmd;
+ u8 *resp;
struct parsed_resp parsed;
size_t prev_d_len;
@@ -2028,6 +2028,8 @@ void free_opal_dev(struct opal_dev *dev)
if (!dev)
return;
clean_opal_dev(dev);
+ kfree(dev->resp);
+ kfree(dev->cmd);
kfree(dev);
}
EXPORT_SYMBOL(free_opal_dev);
@@ -2040,16 +2042,38 @@ struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv)
if (!dev)
return NULL;
+ /*
+ * Presumably DMA-able buffers must be cache-aligned. Kmalloc makes
+ * sure the allocated buffer is DMA-safe in that regard.
+ */
+ dev->cmd = kmalloc(IO_BUFFER_LENGTH, GFP_KERNEL);
+ if (!dev->cmd)
+ goto err_free_dev;
+
+ dev->resp = kmalloc(IO_BUFFER_LENGTH, GFP_KERNEL);
+ if (!dev->resp)
+ goto err_free_cmd;
+
INIT_LIST_HEAD(&dev->unlk_lst);
mutex_init(&dev->dev_lock);
dev->data = data;
dev->send_recv = send_recv;
if (check_opal_support(dev) != 0) {
pr_debug("Opal is not supported on this device\n");
- kfree(dev);
- return NULL;
+ goto err_free_resp;
}
return dev;
+
+err_free_resp:
+ kfree(dev->resp);
+
+err_free_cmd:
+ kfree(dev->cmd);
+
+err_free_dev:
+ kfree(dev);
+
+ return NULL;
}
EXPORT_SYMBOL(init_opal_dev);