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md/raid1: fix buglet in md_raid1_contested. 

Since we added 'replacement' capability, RAID1 can have twice
as many devices as ->raid_disks indicates.
So md_raid1_congested needs to check that many possible devices,
not just ->raid_disks many.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2012-02-13 14:24:05 +11:00
parent db91ff55bd
commit f53e29fc87
1 changed files with 1 additions and 1 deletions
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2
drivers/md/raid1.c
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@ -624,7 +624,7 @@ int md_raid1_congested(struct mddev *mddev, int bits)
return 1;
rcu_read_lock();
for (i = 0; i < conf->raid_disks; i++) {
for (i = 0; i < conf->raid_disks * 2; i++) {
struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct request_queue *q = bdev_get_queue(rdev->bdev);