skip match_mddev_units check for special roles
match_mddev_units is used to check whether 2 RAID arrays share same disk(s). Arrays that share disk(s) will not do resync at the same time for better performance (fewer HDD seek). However, this check should not apply to Spare, Faulty, and Journal disks, as they do not paticipate in resync. In this patch, match_mddev_units skips check for disks with flag "Faulty" or "Journal" or raid_disk < 0. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
This commit is contained in:
Родитель
253f9fd41a
Коммит
0b020e85bd
|
@ -1935,13 +1935,23 @@ static int match_mddev_units(struct mddev *mddev1, struct mddev *mddev2)
|
|||
struct md_rdev *rdev, *rdev2;
|
||||
|
||||
rcu_read_lock();
|
||||
rdev_for_each_rcu(rdev, mddev1)
|
||||
rdev_for_each_rcu(rdev2, mddev2)
|
||||
rdev_for_each_rcu(rdev, mddev1) {
|
||||
if (test_bit(Faulty, &rdev->flags) ||
|
||||
test_bit(Journal, &rdev->flags) ||
|
||||
rdev->raid_disk == -1)
|
||||
continue;
|
||||
rdev_for_each_rcu(rdev2, mddev2) {
|
||||
if (test_bit(Faulty, &rdev2->flags) ||
|
||||
test_bit(Journal, &rdev2->flags) ||
|
||||
rdev2->raid_disk == -1)
|
||||
continue;
|
||||
if (rdev->bdev->bd_contains ==
|
||||
rdev2->bdev->bd_contains) {
|
||||
rcu_read_unlock();
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
rcu_read_unlock();
|
||||
return 0;
|
||||
}
|
||||
|
|
Загрузка…
Ссылка в новой задаче