Commit 5463c790 authored Mar 27, 2006 by Jun'ichi Nomura Committed by Linus Torvalds Mar 27, 2006

[PATCH] dm/md dependency tree in sysfs: md to use bd_claim_by_disk



Use bd_claim_by_disk.

Following symlinks are created if md0 is built from sda and sdb
  /sys/block/md0/slaves/sda --> /sys/block/sda
  /sys/block/md0/slaves/sdb --> /sys/block/sdb
  /sys/block/sda/holders/md0 --> /sys/block/md0
  /sys/block/sdb/holders/md0 --> /sys/block/md0

Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 641dc636

drivers/md/md.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1301,6 +1301,7 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
		else
		ko = &rdev->bdev->bd_disk->kobj;
		sysfs_create_link(&rdev->kobj, ko, "block");
		bd_claim_by_disk(rdev->bdev, rdev, mddev->gendisk);
		return 0;
		}

		@@ -1311,6 +1312,7 @@ static void unbind_rdev_from_array(mdk_rdev_t * rdev)
		MD_BUG();
		return;
		}
		bd_release_from_disk(rdev->bdev, rdev->mddev->gendisk);
		list_del_init(&rdev->same_set);
		printk(KERN_INFO "md: unbind<%s>\n", bdevname(rdev->bdev,b));
		rdev->mddev = NULL;

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