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block: genhd: add 'groups' argument to device_add_disk

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Update device_add_disk() to take an 'groups' argument so that
individual drivers can register a device with additional sysfs
attributes.
This avoids race condition the driver would otherwise have if these
groups were to be created with sysfs_add_groups().

Signed-off-by: Martin Wilck <[email protected]>
Signed-off-by: Hannes Reinecke <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Hannes Reinecke 2018-09-28 08:17:19 +02:00 • committed by Jens Axboe
commit fef912bf86
28 changed files with 43 additions and 33 deletions
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2
drivers/nvme/host/core.c
View file

@ -3099,7 +3099,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
nvme_get_ctrl(ctrl);
device_add_disk(ctrl->device, ns->disk);
device_add_disk(ctrl->device, ns->disk, NULL);
if (sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
&nvme_ns_id_attr_group))
pr_warn("%s: failed to create sysfs group for identification\n",

2
drivers/nvme/host/multipath.c
View file

@ -283,7 +283,7 @@ static void nvme_mpath_set_live(struct nvme_ns *ns)
return;
if (!(head->disk->flags & GENHD_FL_UP)) {
device_add_disk(&head->subsys->dev, head->disk);
device_add_disk(&head->subsys->dev, head->disk, NULL);
if (sysfs_create_group(&disk_to_dev(head->disk)->kobj,
&nvme_ns_id_attr_group))
dev_warn(&head->subsys->dev,