diff options
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 2aa2649cca66..960d854c07f8 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -786,36 +786,6 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect return best_disk; } -static int raid1_congested(struct mddev *mddev, int bits) -{ - struct r1conf *conf = mddev->private; - int i, ret = 0; - - if ((bits & (1 << WB_async_congested)) && - conf->pending_count >= max_queued_requests) - return 1; - - rcu_read_lock(); - 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); - - BUG_ON(!q); - - /* Note the '|| 1' - when read_balance prefers - * non-congested targets, it can be removed - */ - if ((bits & (1 << WB_async_congested)) || 1) - ret |= bdi_congested(q->backing_dev_info, bits); - else - ret &= bdi_congested(q->backing_dev_info, bits); - } - } - rcu_read_unlock(); - return ret; -} - static void flush_bio_list(struct r1conf *conf, struct bio *bio) { /* flush any pending bitmap writes to disk before proceeding w/ I/O */ @@ -3396,7 +3366,6 @@ static struct md_personality raid1_personality = .check_reshape = raid1_reshape, .quiesce = raid1_quiesce, .takeover = raid1_takeover, - .congested = raid1_congested, }; static int __init raid_init(void) |