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alistair23-linux
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nvme: make nvme_report_ns_ids propagate error back 

Make the callers check the return status and propagate
back accordingly (casting to errno from a positive nvme status).
Also print the return status in nvme_report_ns_ids.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
alistair/sunxi64-5.4-dsi
Sagi Grimberg 2019-08-02 18:16:12 -07:00
parent 331813f687
commit 538af88ea7
1 changed files with 22 additions and 6 deletions
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28
drivers/nvme/host/core.c
View File

@ -1595,9 +1595,11 @@ static void nvme_config_write_zeroes(struct gendisk *disk, struct nvme_ns *ns)
blk_queue_max_write_zeroes_sectors(disk->queue, max_sectors);
}
static void nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
static int nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
struct nvme_id_ns *id, struct nvme_ns_ids *ids)
{
int ret = 0;
memset(ids, 0, sizeof(*ids));
if (ctrl->vs >= NVME_VS(1, 1, 0))
@ -1608,10 +1610,12 @@ static void nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
/* Don't treat error as fatal we potentially
* already have a NGUID or EUI-64
*/
if (nvme_identify_ns_descs(ctrl, nsid, ids))
ret = nvme_identify_ns_descs(ctrl, nsid, ids);
if (ret)
dev_warn(ctrl->device,
"%s: Identify Descriptors failed\n", __func__);
"Identify Descriptors failed (%d)\n", ret);
}
return ret;
}
static bool nvme_ns_ids_valid(struct nvme_ns_ids *ids)
@ -1748,7 +1752,10 @@ static int nvme_revalidate_disk(struct gendisk *disk)
}
__nvme_revalidate_disk(disk, id);
nvme_report_ns_ids(ctrl, ns->head->ns_id, id, &ids);
ret = nvme_report_ns_ids(ctrl, ns->head->ns_id, id, &ids);
if (ret)
goto free_id;
if (!nvme_ns_ids_equal(&ns->head->ids, &ids)) {
dev_err(ctrl->device,
"identifiers changed for nsid %d\n", ns->head->ns_id);
@ -3176,7 +3183,9 @@ static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
head->ns_id = nsid;
kref_init(&head->ref);
nvme_report_ns_ids(ctrl, nsid, id, &head->ids);
ret = nvme_report_ns_ids(ctrl, nsid, id, &head->ids);
if (ret)
goto out_cleanup_srcu;
ret = __nvme_check_ids(ctrl->subsys, head);
if (ret) {
@ -3201,6 +3210,8 @@ out_ida_remove:
out_free_head:
kfree(head);
out:
if (ret > 0)
ret = blk_status_to_errno(nvme_error_status(ret));
return ERR_PTR(ret);
}
@ -3224,7 +3235,10 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
} else {
struct nvme_ns_ids ids;
nvme_report_ns_ids(ctrl, nsid, id, &ids);
ret = nvme_report_ns_ids(ctrl, nsid, id, &ids);
if (ret)
goto out_unlock;
if (!nvme_ns_ids_equal(&head->ids, &ids)) {
dev_err(ctrl->device,
"IDs don't match for shared namespace %d\n",
@ -3239,6 +3253,8 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
out_unlock:
mutex_unlock(&ctrl->subsys->lock);
if (ret > 0)
ret = blk_status_to_errno(nvme_error_status(ret));
return ret;
}