diff options
| author |   NeilBrown <neilb@suse.com> | 2016-03-10 08:59:28 +1100 |
|---|---|---|
| committer |   Dan Williams <dan.j.williams@intel.com> | 2016-03-09 14:59:41 -0800 |
| commit | ec56151d382c2140851b4f25203af9016ba84fea (patch) | |
| tree | f01c52c76c50dfd8c26e0f727d60aced5c7f0ac6 /drivers/nvdimm/blk.c | |
| parent | pmem: don't allocate unused major device number (diff) | |
| download | linux-dev-ec56151d382c2140851b4f25203af9016ba84fea.tar.xz linux-dev-ec56151d382c2140851b4f25203af9016ba84fea.zip | |
nvdimm/blk: don't allocate unused major device number
When alloc_disk(0) is used ->major is completely ignored, all devices
are allocated with a "major" of BLOCK_EXT_MAJOR.
So don't allocate nd_blk_major
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/blk.c')
| -rw-r--r-- | drivers/nvdimm/blk.c | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c index 91a336ea8c4f..e9ff9229d942 100644 --- a/drivers/nvdimm/blk.c +++ b/drivers/nvdimm/blk.c @@ -31,8 +31,6 @@ struct nd_blk_device { u32 internal_lbasize; }; -static int nd_blk_major; - static u32 nd_blk_meta_size(struct nd_blk_device *blk_dev) { return blk_dev->nsblk->lbasize - blk_dev->sector_size; @@ -264,7 +262,6 @@ static int nd_blk_attach_disk(struct nd_namespace_common *ndns, } disk->driverfs_dev = &ndns->dev; - disk->major = nd_blk_major; disk->first_minor = 0; disk->fops = &nd_blk_fops; disk->private_data = blk_dev; @@ -358,25 +355,12 @@ static struct nd_device_driver nd_blk_driver = { static int __init nd_blk_init(void) { - int rc; - - rc = register_blkdev(0, "nd_blk"); - if (rc < 0) - return rc; - - nd_blk_major = rc; - rc = nd_driver_register(&nd_blk_driver); - - if (rc < 0) - unregister_blkdev(nd_blk_major, "nd_blk"); - - return rc; + return nd_driver_register(&nd_blk_driver); } static void __exit nd_blk_exit(void) { driver_unregister(&nd_blk_driver.drv); - unregister_blkdev(nd_blk_major, "nd_blk"); } MODULE_AUTHOR("Ross Zwisler <ross.zwisler@linux.intel.com>"); |