md: remove mddev_lock from rdev_attr_show()
authorNeilBrown <neilb@suse.de>
Mon, 15 Dec 2014 01:56:59 +0000 (12:56 +1100)
committerNeilBrown <neilb@suse.de>
Thu, 5 Feb 2015 22:32:56 +0000 (09:32 +1100)
commit758bfc8abfbc26c196a53c52d52d251f20226a5c
treea7642d30147db5f67f299b165b8941d619d658ba
parentb7b17c9b67e5984210c83d50d2c8117d3bd50ea0
md: remove mddev_lock from rdev_attr_show()

No rdev attributes need locking for 'show', though
state_show() might benefit from ensuring it sees a
consistent set of flags.

None even use rdev->mddev, so testing for it isn't really
needed and it certainly doesn't need to be held constant.

So improve state_show() and remove the locking.

Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/md.c