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md: change hot_remove_disk to take an rdev rather than a number.

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Soon an array will be able to have multiple devices with the
same raid_disk number (an original and a replacement).  So removing
a device based on the number won't work.  So pass the actual device
handle instead.

Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown
2011-12-23 10:17:51 +11:00
parent 476a7abb9b
commit b8321b68d1
6 changed files with 18 additions and 21 deletions
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7
drivers/md/raid1.c
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@@ -1327,16 +1327,15 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
return err;
}
static int raid1_remove_disk(struct mddev *mddev, int number)
static int raid1_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
{
struct r1conf *conf = mddev->private;
int err = 0;
struct md_rdev *rdev;
int number = rdev->raid_disk;
struct mirror_info *p = conf->mirrors+ number;
print_conf(conf);
rdev = p->rdev;
if (rdev) {
if (rdev == p->rdev) {
if (test_bit(In_sync, &rdev->flags) ||
atomic_read(&rdev->nr_pending)) {
err = -EBUSY;