Lines Matching refs:raid_disks
199 static inline int raid6_next_disk(int disk, int raid_disks) in raid6_next_disk() argument
202 return (disk < raid_disks) ? disk : 0; in raid6_next_disk()
536 sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks; in init_stripe()
614 if (conf->raid_disks >= conf->previous_raid_disks) in calc_degraded()
618 if (conf->raid_disks == conf->previous_raid_disks) in calc_degraded()
622 for (i = 0; i < conf->raid_disks; i++) { in calc_degraded()
636 if (conf->raid_disks <= conf->previous_raid_disks) in calc_degraded()
2023 int devs = max(conf->raid_disks, conf->previous_raid_disks); in grow_stripes()
2225 for (i=0; i<conf->raid_disks; i++) in resize_stripes()
2238 for (i=conf->raid_disks; i < newsize; i++) in resize_stripes()
2529 conf->raid_disks - mddev->degraded); in error()
2550 int raid_disks = previous ? conf->previous_raid_disks in raid5_compute_sector() local
2551 : conf->raid_disks; in raid5_compute_sector()
2552 int data_disks = raid_disks - conf->max_degraded; in raid5_compute_sector()
2579 pd_idx = data_disks - sector_div(stripe2, raid_disks); in raid5_compute_sector()
2584 pd_idx = sector_div(stripe2, raid_disks); in raid5_compute_sector()
2589 pd_idx = data_disks - sector_div(stripe2, raid_disks); in raid5_compute_sector()
2590 *dd_idx = (pd_idx + 1 + *dd_idx) % raid_disks; in raid5_compute_sector()
2593 pd_idx = sector_div(stripe2, raid_disks); in raid5_compute_sector()
2594 *dd_idx = (pd_idx + 1 + *dd_idx) % raid_disks; in raid5_compute_sector()
2611 pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks); in raid5_compute_sector()
2613 if (pd_idx == raid_disks-1) { in raid5_compute_sector()
2620 pd_idx = sector_div(stripe2, raid_disks); in raid5_compute_sector()
2622 if (pd_idx == raid_disks-1) { in raid5_compute_sector()
2629 pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks); in raid5_compute_sector()
2630 qd_idx = (pd_idx + 1) % raid_disks; in raid5_compute_sector()
2631 *dd_idx = (pd_idx + 2 + *dd_idx) % raid_disks; in raid5_compute_sector()
2634 pd_idx = sector_div(stripe2, raid_disks); in raid5_compute_sector()
2635 qd_idx = (pd_idx + 1) % raid_disks; in raid5_compute_sector()
2636 *dd_idx = (pd_idx + 2 + *dd_idx) % raid_disks; in raid5_compute_sector()
2653 pd_idx = sector_div(stripe2, raid_disks); in raid5_compute_sector()
2655 if (pd_idx == raid_disks-1) { in raid5_compute_sector()
2669 pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks); in raid5_compute_sector()
2671 if (pd_idx == raid_disks-1) { in raid5_compute_sector()
2681 pd_idx = raid_disks - 1 - sector_div(stripe2, raid_disks); in raid5_compute_sector()
2682 qd_idx = (pd_idx + raid_disks - 1) % raid_disks; in raid5_compute_sector()
2683 *dd_idx = (pd_idx + 1 + *dd_idx) % raid_disks; in raid5_compute_sector()
2689 pd_idx = data_disks - sector_div(stripe2, raid_disks-1); in raid5_compute_sector()
2692 qd_idx = raid_disks - 1; in raid5_compute_sector()
2696 pd_idx = sector_div(stripe2, raid_disks-1); in raid5_compute_sector()
2699 qd_idx = raid_disks - 1; in raid5_compute_sector()
2703 pd_idx = data_disks - sector_div(stripe2, raid_disks-1); in raid5_compute_sector()
2704 *dd_idx = (pd_idx + 1 + *dd_idx) % (raid_disks-1); in raid5_compute_sector()
2705 qd_idx = raid_disks - 1; in raid5_compute_sector()
2709 pd_idx = sector_div(stripe2, raid_disks-1); in raid5_compute_sector()
2710 *dd_idx = (pd_idx + 1 + *dd_idx) % (raid_disks-1); in raid5_compute_sector()
2711 qd_idx = raid_disks - 1; in raid5_compute_sector()
2717 qd_idx = raid_disks - 1; in raid5_compute_sector()
2741 int raid_disks = sh->disks; in compute_blocknr() local
2742 int data_disks = raid_disks - conf->max_degraded; in compute_blocknr()
2772 i += raid_disks; in compute_blocknr()
2792 if (sh->pd_idx == raid_disks-1) in compute_blocknr()
2799 if (sh->pd_idx == raid_disks-1) in compute_blocknr()
2804 i += raid_disks; in compute_blocknr()
2820 i += raid_disks; in compute_blocknr()
3063 int disks = previous ? conf->previous_raid_disks : conf->raid_disks; in stripe_set_idx()
3211 for (i = 0; i < conf->raid_disks; i++) { in handle_failed_sync()
3974 for (j = 0; j < conf->raid_disks; j++) in handle_stripe_expansion()
3979 if (j == conf->raid_disks) { in handle_stripe_expansion()
4467 for (i = 0; i < conf->raid_disks; i++) in handle_stripe()
4532 for (i = conf->raid_disks; i--; ) { in handle_stripe()
4542 sh->disks = conf->raid_disks; in handle_stripe()
5075 (conf->raid_disks - conf->max_degraded); in make_discard_request()
5099 for (d = 0; d < conf->raid_disks; d++) { in make_discard_request()
5113 for (d = 0; d < conf->raid_disks; d++) { in make_discard_request()
5124 d < conf->raid_disks - conf->max_degraded; in make_discard_request()
5326 static sector_t raid5_size(struct mddev *mddev, sector_t sectors, int raid_disks);
5342 int raid_disks = conf->previous_raid_disks; in reshape_request() local
5343 int data_disks = raid_disks - conf->max_degraded; in reshape_request()
5344 int new_data_disks = conf->raid_disks - conf->max_degraded; in reshape_request()
5641 for (i = 0; i < conf->raid_disks; i++) { in sync_request()
6250 raid5_size(struct mddev *mddev, sector_t sectors, int raid_disks) in raid5_size() argument
6256 if (!raid_disks) in raid5_size()
6258 raid_disks = min(conf->raid_disks, conf->previous_raid_disks); in raid5_size()
6262 return sectors * (raid_disks - conf->max_degraded); in raid5_size()
6279 percpu->scribble = scribble_alloc(max(conf->raid_disks, in alloc_scratch_buffer()
6382 conf->scribble_disks = max(conf->raid_disks, in raid5_alloc_percpu()
6448 if (mddev->new_level == 6 && mddev->raid_disks < 4) { in setup_conf()
6450 mdname(mddev), mddev->raid_disks); in setup_conf()
6489 conf->raid_disks = mddev->raid_disks; in setup_conf()
6491 conf->previous_raid_disks = mddev->raid_disks; in setup_conf()
6493 conf->previous_raid_disks = mddev->raid_disks - mddev->delta_disks; in setup_conf()
6494 max_disks = max(conf->raid_disks, conf->previous_raid_disks); in setup_conf()
6590 conf->shrinker.seeks = DEFAULT_SEEKS * conf->raid_disks * 4; in setup_conf()
6616 static int only_parity(int raid_disk, int algo, int raid_disks, int max_degraded) in only_parity() argument
6624 if (raid_disk >= raid_disks - max_degraded) in only_parity()
6629 raid_disk == raid_disks - 1) in only_parity()
6636 if (raid_disk == raid_disks - 1) in only_parity()
6697 old_disks = mddev->raid_disks - mddev->delta_disks; in run()
6704 (mddev->raid_disks - max_degraded))) { in run()
6774 for (i = 0; i < conf->raid_disks && conf->previous_raid_disks; in run()
6814 conf->raid_disks, in run()
6834 mdname(mddev), mddev->degraded, conf->raid_disks); in run()
6860 mddev->raid_disks-mddev->degraded, mddev->raid_disks, in run()
6866 mddev->raid_disks - mddev->degraded, in run()
6867 mddev->raid_disks, mddev->new_layout); in run()
6908 (conf->raid_disks - conf->max_degraded)); in run()
6997 seq_printf (seq, " [%d/%d] [", conf->raid_disks, conf->raid_disks - mddev->degraded); in status()
6998 for (i = 0; i < conf->raid_disks; i++) in status()
7016 conf->raid_disks, in print_raid5_conf()
7017 conf->raid_disks - conf->mddev->degraded); in print_raid5_conf()
7019 for (i = 0; i < conf->raid_disks; i++) { in print_raid5_conf()
7037 for (i = 0; i < conf->raid_disks; i++) { in raid5_spare_active()
7088 if (number >= conf->raid_disks && in raid5_remove_disk()
7104 number < conf->raid_disks) { in raid5_remove_disk()
7141 int last = conf->raid_disks - 1; in raid5_add_disk()
7203 newsize = raid5_size(mddev, sectors, mddev->raid_disks); in raid5_resize()
7268 if (mddev->raid_disks + mddev->delta_disks < min) in check_reshape()
7320 if (raid5_size(mddev, 0, conf->raid_disks + mddev->delta_disks) in raid5_start_reshape()
7330 conf->previous_raid_disks = conf->raid_disks; in raid5_start_reshape()
7331 conf->raid_disks += mddev->delta_disks; in raid5_start_reshape()
7391 mddev->raid_disks = conf->raid_disks; in raid5_start_reshape()
7406 mddev->raid_disks = conf->raid_disks = conf->previous_raid_disks; in raid5_start_reshape()
7436 conf->previous_raid_disks = conf->raid_disks; in end_reshape()
7448 int data_disks = conf->raid_disks - conf->max_degraded; in end_reshape()
7475 for (d = conf->raid_disks ; in raid5_finish_reshape()
7476 d < conf->raid_disks - mddev->delta_disks; in raid5_finish_reshape()
7548 mddev->raid_disks += 1; in raid45_takeover_raid0()
7560 if (mddev->raid_disks != 2 || in raid5_takeover_raid1()
7612 mddev->raid_disks -= 1; in raid5_takeover_raid6()
7640 if (mddev->raid_disks == 2) { in raid5_check_reshape()
7730 if (mddev->raid_disks > 253) in raid6_takeover()
7732 if (mddev->raid_disks < 3) in raid6_takeover()
7760 mddev->raid_disks += 1; in raid6_takeover()