Reservation Report support needs to pass in a variable sized buffer, so
this patch has the pr command helpers take a data length argument.
Signed-off-by: Mike Christie <michael.christie@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Keith Busch <kbusch@xxxxxxxxxx>
Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx>
---
drivers/nvme/host/core.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index d400175c312d..48a22c3aff15 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2082,7 +2082,7 @@ static char nvme_pr_type(enum pr_type type)
}
static int nvme_send_ns_head_pr_command(struct block_device *bdev,
- struct nvme_command *c, u8 data[16])
+ struct nvme_command *c, u8 *data, unsigned int data_len)
{
struct nvme_ns_head *head = bdev->bd_disk->private_data;
int srcu_idx = srcu_read_lock(&head->srcu);
@@ -2091,17 +2091,17 @@ static int nvme_send_ns_head_pr_command(struct block_device *bdev,
if (ns) {
c->common.nsid = cpu_to_le32(ns->head->ns_id);
- ret = nvme_submit_sync_cmd(ns->queue, c, data, 16);
+ ret = nvme_submit_sync_cmd(ns->queue, c, data, data_len);
}
srcu_read_unlock(&head->srcu, srcu_idx);
return ret;
}
static int nvme_send_ns_pr_command(struct nvme_ns *ns, struct nvme_command *c,
- u8 data[16])
+ u8 *data, unsigned int data_len)
{
c->common.nsid = cpu_to_le32(ns->head->ns_id);
- return nvme_submit_sync_cmd(ns->queue, c, data, 16);
+ return nvme_submit_sync_cmd(ns->queue, c, data, data_len);
}
static int nvme_sc_to_pr_err(int nvme_sc)
@@ -2141,10 +2141,11 @@ static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
if (IS_ENABLED(CONFIG_NVME_MULTIPATH) &&
bdev->bd_disk->fops == &nvme_ns_head_ops)
- ret = nvme_send_ns_head_pr_command(bdev, &c, data);
+ ret = nvme_send_ns_head_pr_command(bdev, &c, data,
+ sizeof(data));
else
ret = nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c,
- data);
+ data, sizeof(data));
if (ret < 0)
return ret;
--
2.25.1
