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nvme: rename uuid to nguid in nvme_ns

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The uuid field in the nvme_ns structure represents the nguid field
from the identify namespace command. And as NVMe 1.3 introduced an
UUID in the NVMe Namespace Identification Descriptor this will
collide.

So rename the uuid to nguid to prevent any further
confusion. Unfortunately we export the nguid to sysfs in the uuid
sysfs attribute, but this can't be changed anymore without possibly
breaking existing userspace.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Johannes Thumshirn 2017-06-07 11:45:31 +02:00 committed by Christoph Hellwig
parent af8b86e9a7
commit 90985b84c4
2 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/nvme/host/core.c
View File

@ -1011,7 +1011,7 @@ static int nvme_revalidate_ns(struct nvme_ns *ns, struct nvme_id_ns **id)
if (ns->ctrl->vs >= NVME_VS(1, 1, 0))
memcpy(ns->eui, (*id)->eui64, sizeof(ns->eui));
if (ns->ctrl->vs >= NVME_VS(1, 2, 0))
memcpy(ns->uuid, (*id)->nguid, sizeof(ns->uuid));
memcpy(ns->nguid, (*id)->nguid, sizeof(ns->nguid));
return 0;
}
@ -1784,8 +1784,8 @@ static ssize_t wwid_show(struct device *dev, struct device_attribute *attr,
int serial_len = sizeof(ctrl->serial);
int model_len = sizeof(ctrl->model);
if (memchr_inv(ns->uuid, 0, sizeof(ns->uuid)))
return sprintf(buf, "eui.%16phN\n", ns->uuid);
if (memchr_inv(ns->nguid, 0, sizeof(ns->nguid)))
return sprintf(buf, "eui.%16phN\n", ns->nguid);
if (memchr_inv(ns->eui, 0, sizeof(ns->eui)))
return sprintf(buf, "eui.%8phN\n", ns->eui);
@ -1804,7 +1804,7 @@ static ssize_t uuid_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
return sprintf(buf, "%pU\n", ns->uuid);
return sprintf(buf, "%pU\n", ns->nguid);
}
static DEVICE_ATTR(uuid, S_IRUGO, uuid_show, NULL);
@ -1839,7 +1839,7 @@ static umode_t nvme_ns_attrs_are_visible(struct kobject *kobj,
struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
if (a == &dev_attr_uuid.attr) {
if (!memchr_inv(ns->uuid, 0, sizeof(ns->uuid)))
if (!memchr_inv(ns->nguid, 0, sizeof(ns->nguid)))
return 0;
}
if (a == &dev_attr_eui.attr) {

2
drivers/nvme/host/nvme.h
View File

@ -195,7 +195,7 @@ struct nvme_ns {
int instance;
u8 eui[8];
u8 uuid[16];
u8 nguid[16];
unsigned ns_id;
int lba_shift;