[PATCH] md: extend md sysfs support to component devices.
authorNeilBrown <neilb@suse.de>
Wed, 9 Nov 2005 05:39:24 +0000 (21:39 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Wed, 9 Nov 2005 15:56:37 +0000 (07:56 -0800)
commit86e6ffdd243a06663713e637ee683fb27dce8e0c
treed6bc5f26aff6b1a506ad04d8d605d92cfd19162f
parenteae1701fbd264cfc7efbaf7cd4cd999760070e27
[PATCH] md: extend md sysfs support to component devices.

Each device in an md array how has a corresponding
  /sys/block/mdX/md/devNN/
directory which can contain attributes.  Currently there is only 'state' which
summarises the state, nd 'super' which has a copy of the superblock, and
'block' which is a symlink to the block device.

Also, /sys/block/mdX/md/rdNN represents slot 'NN' in the array, and is a
symlink to the relevant 'devNN'.  Obviously spare devices do not have a slot
in the array, and so don't have such a symlink.

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/md/md.c
include/linux/raid/md_k.h