]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/commit
[SCSI] genhd: add a new attribute "alias" in gendisk
authorNao Nishijima <nao.nishijima.xt@hitachi.com>
Thu, 25 Aug 2011 09:04:06 +0000 (18:04 +0900)
committerJames Bottomley <JBottomley@Parallels.com>
Mon, 29 Aug 2011 07:16:19 +0000 (00:16 -0700)
commita72c5e5eb738033938ab30d6a634b74d1d060f10
tree72cea6d75a62f7003d55f8a754c2d17149ada85f
parent76e4e12ff2b3ef86773989fd897b194eb38016e6
[SCSI] genhd: add a new attribute "alias" in gendisk

This patch allows the user to set an "alias" of the disk via sysfs interface.

This patch only adds a new attribute "alias" in gendisk structure.
To show the alias instead of the device name in kernel messages,
we need to revise printk messages and use alias_name() in them.

Example:
(current) printk("disk name is %s\n", disk->disk_name);
(new)     printk("disk name is %s\n", alias_name(disk));

Users can use alphabets, numbers, '-' and '_' in "alias" attribute. A disk can
have an "alias" which length is up to 255 bytes. This attribute is write-once.

Suggested-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Suggested-by: Jon Masters <jcm@redhat.com>
Signed-off-by: Nao Nishijima <nao.nishijima.xt@hitachi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Documentation/ABI/testing/sysfs-block
block/genhd.c
include/linux/genhd.h