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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 <martin.wilck@suse.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Hannes Reinecke
2018-09-28 08:17:19 +02:00
committed by Jens Axboe
parent 6c3b7af1c9
commit fef912bf86
28 changed files with 43 additions and 33 deletions
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2
drivers/nvdimm/blk.c
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@@ -290,7 +290,7 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk)
}
set_capacity(disk, available_disk_size >> SECTOR_SHIFT);
device_add_disk(dev, disk);
device_add_disk(dev, disk, NULL);
revalidate_disk(disk);
return 0;
}

2
drivers/nvdimm/btt.c
View File

@@ -1556,7 +1556,7 @@ static int btt_blk_init(struct btt *btt)
}
}
set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9);
device_add_disk(&btt->nd_btt->dev, btt->btt_disk);
device_add_disk(&btt->nd_btt->dev, btt->btt_disk, NULL);
btt->nd_btt->size = btt->nlba * (u64)btt->sector_size;
revalidate_disk(btt->btt_disk);

2
drivers/nvdimm/pmem.c
View File

@@ -474,7 +474,7 @@ static int pmem_attach_disk(struct device *dev,
gendev = disk_to_dev(disk);
gendev->groups = pmem_attribute_groups;
device_add_disk(dev, disk);
device_add_disk(dev, disk, NULL);
if (devm_add_action_or_reset(dev, pmem_release_disk, pmem))
return -ENOMEM;