Lines Matching refs:conf
46 static void allow_barrier(struct r1conf *conf, sector_t sector_nr);
47 static void lower_barrier(struct r1conf *conf, sector_t sector_nr);
237 static void put_all_bios(struct r1conf *conf, struct r1bio *r1_bio) in put_all_bios() argument
241 for (i = 0; i < conf->raid_disks * 2; i++) { in put_all_bios()
251 struct r1conf *conf = r1_bio->mddev->private; in free_r1bio() local
253 put_all_bios(conf, r1_bio); in free_r1bio()
254 mempool_free(r1_bio, &conf->r1bio_pool); in free_r1bio()
259 struct r1conf *conf = r1_bio->mddev->private; in put_buf() local
263 for (i = 0; i < conf->raid_disks * 2; i++) { in put_buf()
266 rdev_dec_pending(conf->mirrors[i].rdev, r1_bio->mddev); in put_buf()
269 mempool_free(r1_bio, &conf->r1buf_pool); in put_buf()
271 lower_barrier(conf, sect); in put_buf()
278 struct r1conf *conf = mddev->private; in reschedule_retry() local
282 spin_lock_irqsave(&conf->device_lock, flags); in reschedule_retry()
283 list_add(&r1_bio->retry_list, &conf->retry_list); in reschedule_retry()
284 atomic_inc(&conf->nr_queued[idx]); in reschedule_retry()
285 spin_unlock_irqrestore(&conf->device_lock, flags); in reschedule_retry()
287 wake_up(&conf->wait_barrier); in reschedule_retry()
309 struct r1conf *conf = r1_bio->mddev->private; in raid_end_bio_io() local
324 allow_barrier(conf, r1_bio->sector); in raid_end_bio_io()
334 struct r1conf *conf = r1_bio->mddev->private; in update_head_pos() local
336 conf->mirrors[disk].head_position = in update_head_pos()
346 struct r1conf *conf = r1_bio->mddev->private; in find_bio_disk() local
347 int raid_disks = conf->raid_disks; in find_bio_disk()
363 struct r1conf *conf = r1_bio->mddev->private; in raid1_end_read_request() local
364 struct md_rdev *rdev = conf->mirrors[r1_bio->read_disk].rdev; in raid1_end_read_request()
384 spin_lock_irqsave(&conf->device_lock, flags); in raid1_end_read_request()
385 if (r1_bio->mddev->degraded == conf->raid_disks || in raid1_end_read_request()
386 (r1_bio->mddev->degraded == conf->raid_disks-1 && in raid1_end_read_request()
389 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_end_read_request()
394 rdev_dec_pending(rdev, conf->mddev); in raid1_end_read_request()
401 mdname(conf->mddev), in raid1_end_read_request()
446 struct r1conf *conf = r1_bio->mddev->private; in raid1_end_write_request() local
449 struct md_rdev *rdev = conf->mirrors[mirror].rdev; in raid1_end_write_request()
463 conf->mddev->recovery); in raid1_end_write_request()
549 rdev_dec_pending(rdev, conf->mddev); in raid1_end_write_request()
594 static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sectors) in read_balance() argument
626 if ((conf->mddev->recovery_cp < this_sector + sectors) || in read_balance()
627 (mddev_is_clustered(conf->mddev) && in read_balance()
628 md_cluster_ops->area_resyncing(conf->mddev, READ, this_sector, in read_balance()
634 for (disk = 0 ; disk < conf->raid_disks * 2 ; disk++) { in read_balance()
641 rdev = rcu_dereference(conf->mirrors[disk].rdev); in read_balance()
708 dist = abs(this_sector - conf->mirrors[disk].head_position); in read_balance()
714 if (conf->mirrors[disk].next_seq_sect == this_sector in read_balance()
717 struct raid1_info *mirror = &conf->mirrors[disk]; in read_balance()
772 rdev = rcu_dereference(conf->mirrors[best_disk].rdev); in read_balance()
778 if (conf->mirrors[best_disk].next_seq_sect != this_sector) in read_balance()
779 conf->mirrors[best_disk].seq_start = this_sector; in read_balance()
781 conf->mirrors[best_disk].next_seq_sect = this_sector + sectors; in read_balance()
789 static void flush_bio_list(struct r1conf *conf, struct bio *bio) in flush_bio_list() argument
792 md_bitmap_unplug(conf->mddev->bitmap); in flush_bio_list()
793 wake_up(&conf->wait_barrier); in flush_bio_list()
813 static void flush_pending_writes(struct r1conf *conf) in flush_pending_writes() argument
818 spin_lock_irq(&conf->device_lock); in flush_pending_writes()
820 if (conf->pending_bio_list.head) { in flush_pending_writes()
824 bio = bio_list_get(&conf->pending_bio_list); in flush_pending_writes()
825 conf->pending_count = 0; in flush_pending_writes()
826 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
839 flush_bio_list(conf, bio); in flush_pending_writes()
842 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
869 static int raise_barrier(struct r1conf *conf, sector_t sector_nr) in raise_barrier() argument
873 spin_lock_irq(&conf->resync_lock); in raise_barrier()
876 wait_event_lock_irq(conf->wait_barrier, in raise_barrier()
877 !atomic_read(&conf->nr_waiting[idx]), in raise_barrier()
878 conf->resync_lock); in raise_barrier()
881 atomic_inc(&conf->barrier[idx]); in raise_barrier()
899 wait_event_lock_irq(conf->wait_barrier, in raise_barrier()
900 (!conf->array_frozen && in raise_barrier()
901 !atomic_read(&conf->nr_pending[idx]) && in raise_barrier()
902 atomic_read(&conf->barrier[idx]) < RESYNC_DEPTH) || in raise_barrier()
903 test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery), in raise_barrier()
904 conf->resync_lock); in raise_barrier()
906 if (test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) { in raise_barrier()
907 atomic_dec(&conf->barrier[idx]); in raise_barrier()
908 spin_unlock_irq(&conf->resync_lock); in raise_barrier()
909 wake_up(&conf->wait_barrier); in raise_barrier()
913 atomic_inc(&conf->nr_sync_pending); in raise_barrier()
914 spin_unlock_irq(&conf->resync_lock); in raise_barrier()
919 static void lower_barrier(struct r1conf *conf, sector_t sector_nr) in lower_barrier() argument
923 BUG_ON(atomic_read(&conf->barrier[idx]) <= 0); in lower_barrier()
925 atomic_dec(&conf->barrier[idx]); in lower_barrier()
926 atomic_dec(&conf->nr_sync_pending); in lower_barrier()
927 wake_up(&conf->wait_barrier); in lower_barrier()
930 static void _wait_barrier(struct r1conf *conf, int idx) in _wait_barrier() argument
940 atomic_inc(&conf->nr_pending[idx]); in _wait_barrier()
960 if (!READ_ONCE(conf->array_frozen) && in _wait_barrier()
961 !atomic_read(&conf->barrier[idx])) in _wait_barrier()
971 spin_lock_irq(&conf->resync_lock); in _wait_barrier()
972 atomic_inc(&conf->nr_waiting[idx]); in _wait_barrier()
973 atomic_dec(&conf->nr_pending[idx]); in _wait_barrier()
978 wake_up(&conf->wait_barrier); in _wait_barrier()
980 wait_event_lock_irq(conf->wait_barrier, in _wait_barrier()
981 !conf->array_frozen && in _wait_barrier()
982 !atomic_read(&conf->barrier[idx]), in _wait_barrier()
983 conf->resync_lock); in _wait_barrier()
984 atomic_inc(&conf->nr_pending[idx]); in _wait_barrier()
985 atomic_dec(&conf->nr_waiting[idx]); in _wait_barrier()
986 spin_unlock_irq(&conf->resync_lock); in _wait_barrier()
989 static void wait_read_barrier(struct r1conf *conf, sector_t sector_nr) in wait_read_barrier() argument
1000 atomic_inc(&conf->nr_pending[idx]); in wait_read_barrier()
1002 if (!READ_ONCE(conf->array_frozen)) in wait_read_barrier()
1005 spin_lock_irq(&conf->resync_lock); in wait_read_barrier()
1006 atomic_inc(&conf->nr_waiting[idx]); in wait_read_barrier()
1007 atomic_dec(&conf->nr_pending[idx]); in wait_read_barrier()
1012 wake_up(&conf->wait_barrier); in wait_read_barrier()
1014 wait_event_lock_irq(conf->wait_barrier, in wait_read_barrier()
1015 !conf->array_frozen, in wait_read_barrier()
1016 conf->resync_lock); in wait_read_barrier()
1017 atomic_inc(&conf->nr_pending[idx]); in wait_read_barrier()
1018 atomic_dec(&conf->nr_waiting[idx]); in wait_read_barrier()
1019 spin_unlock_irq(&conf->resync_lock); in wait_read_barrier()
1022 static void wait_barrier(struct r1conf *conf, sector_t sector_nr) in wait_barrier() argument
1026 _wait_barrier(conf, idx); in wait_barrier()
1029 static void _allow_barrier(struct r1conf *conf, int idx) in _allow_barrier() argument
1031 atomic_dec(&conf->nr_pending[idx]); in _allow_barrier()
1032 wake_up(&conf->wait_barrier); in _allow_barrier()
1035 static void allow_barrier(struct r1conf *conf, sector_t sector_nr) in allow_barrier() argument
1039 _allow_barrier(conf, idx); in allow_barrier()
1043 static int get_unqueued_pending(struct r1conf *conf) in get_unqueued_pending() argument
1047 ret = atomic_read(&conf->nr_sync_pending); in get_unqueued_pending()
1049 ret += atomic_read(&conf->nr_pending[idx]) - in get_unqueued_pending()
1050 atomic_read(&conf->nr_queued[idx]); in get_unqueued_pending()
1055 static void freeze_array(struct r1conf *conf, int extra) in freeze_array() argument
1080 spin_lock_irq(&conf->resync_lock); in freeze_array()
1081 conf->array_frozen = 1; in freeze_array()
1082 raid1_log(conf->mddev, "wait freeze"); in freeze_array()
1084 conf->wait_barrier, in freeze_array()
1085 get_unqueued_pending(conf) == extra, in freeze_array()
1086 conf->resync_lock, in freeze_array()
1087 flush_pending_writes(conf)); in freeze_array()
1088 spin_unlock_irq(&conf->resync_lock); in freeze_array()
1090 static void unfreeze_array(struct r1conf *conf) in unfreeze_array() argument
1093 spin_lock_irq(&conf->resync_lock); in unfreeze_array()
1094 conf->array_frozen = 0; in unfreeze_array()
1095 spin_unlock_irq(&conf->resync_lock); in unfreeze_array()
1096 wake_up(&conf->wait_barrier); in unfreeze_array()
1158 struct r1conf *conf = mddev->private; in raid1_unplug() local
1162 spin_lock_irq(&conf->device_lock); in raid1_unplug()
1163 bio_list_merge(&conf->pending_bio_list, &plug->pending); in raid1_unplug()
1164 conf->pending_count += plug->pending_cnt; in raid1_unplug()
1165 spin_unlock_irq(&conf->device_lock); in raid1_unplug()
1166 wake_up(&conf->wait_barrier); in raid1_unplug()
1174 flush_bio_list(conf, bio); in raid1_unplug()
1190 struct r1conf *conf = mddev->private; in alloc_r1bio() local
1193 r1_bio = mempool_alloc(&conf->r1bio_pool, GFP_NOIO); in alloc_r1bio()
1195 memset(r1_bio->bios, 0, conf->raid_disks * sizeof(r1_bio->bios[0])); in alloc_r1bio()
1203 struct r1conf *conf = mddev->private; in raid1_read_request() local
1225 rdev = rcu_dereference(conf->mirrors[r1_bio->read_disk].rdev); in raid1_read_request()
1237 wait_read_barrier(conf, bio->bi_iter.bi_sector); in raid1_read_request()
1249 rdisk = read_balance(conf, r1_bio, &max_sectors); in raid1_read_request()
1262 mirror = conf->mirrors + rdisk; in raid1_read_request()
1283 gfp, &conf->bio_split); in raid1_read_request()
1317 struct r1conf *conf = mddev->private; in raid1_write_request() local
1334 prepare_to_wait(&conf->wait_barrier, in raid1_write_request()
1342 finish_wait(&conf->wait_barrier, &w); in raid1_write_request()
1350 wait_barrier(conf, bio->bi_iter.bi_sector); in raid1_write_request()
1355 if (conf->pending_count >= max_queued_requests) { in raid1_write_request()
1358 wait_event(conf->wait_barrier, in raid1_write_request()
1359 conf->pending_count < max_queued_requests); in raid1_write_request()
1372 disks = conf->raid_disks * 2; in raid1_write_request()
1378 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in raid1_write_request()
1386 if (i < conf->raid_disks) in raid1_write_request()
1443 rdev_dec_pending(conf->mirrors[j].rdev, mddev); in raid1_write_request()
1445 allow_barrier(conf, bio->bi_iter.bi_sector); in raid1_write_request()
1448 wait_barrier(conf, bio->bi_iter.bi_sector); in raid1_write_request()
1454 GFP_NOIO, &conf->bio_split); in raid1_write_request()
1469 struct md_rdev *rdev = conf->mirrors[i].rdev; in raid1_write_request()
1507 conf->mirrors[i].rdev->data_offset); in raid1_write_request()
1508 bio_set_dev(mbio, conf->mirrors[i].rdev->bdev); in raid1_write_request()
1511 if (test_bit(FailFast, &conf->mirrors[i].rdev->flags) && in raid1_write_request()
1512 !test_bit(WriteMostly, &conf->mirrors[i].rdev->flags) && in raid1_write_request()
1513 conf->raid_disks - mddev->degraded > 1) in raid1_write_request()
1524 mbio->bi_disk = (void *)conf->mirrors[i].rdev; in raid1_write_request()
1535 spin_lock_irqsave(&conf->device_lock, flags); in raid1_write_request()
1536 bio_list_add(&conf->pending_bio_list, mbio); in raid1_write_request()
1537 conf->pending_count++; in raid1_write_request()
1538 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_write_request()
1546 wake_up(&conf->wait_barrier); in raid1_write_request()
1579 struct r1conf *conf = mddev->private; in raid1_status() local
1582 seq_printf(seq, " [%d/%d] [", conf->raid_disks, in raid1_status()
1583 conf->raid_disks - mddev->degraded); in raid1_status()
1585 for (i = 0; i < conf->raid_disks; i++) { in raid1_status()
1586 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in raid1_status()
1597 struct r1conf *conf = mddev->private; in raid1_error() local
1606 spin_lock_irqsave(&conf->device_lock, flags); in raid1_error()
1608 && (conf->raid_disks - mddev->degraded) == 1) { in raid1_error()
1615 conf->recovery_disabled = mddev->recovery_disabled; in raid1_error()
1616 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_error()
1623 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_error()
1633 mdname(mddev), conf->raid_disks - mddev->degraded); in raid1_error()
1636 static void print_conf(struct r1conf *conf) in print_conf() argument
1641 if (!conf) { in print_conf()
1645 pr_debug(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded, in print_conf()
1646 conf->raid_disks); in print_conf()
1649 for (i = 0; i < conf->raid_disks; i++) { in print_conf()
1651 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in print_conf()
1661 static void close_sync(struct r1conf *conf) in close_sync() argument
1666 _wait_barrier(conf, idx); in close_sync()
1667 _allow_barrier(conf, idx); in close_sync()
1670 mempool_exit(&conf->r1buf_pool); in close_sync()
1676 struct r1conf *conf = mddev->private; in raid1_spare_active() local
1687 spin_lock_irqsave(&conf->device_lock, flags); in raid1_spare_active()
1688 for (i = 0; i < conf->raid_disks; i++) { in raid1_spare_active()
1689 struct md_rdev *rdev = conf->mirrors[i].rdev; in raid1_spare_active()
1690 struct md_rdev *repl = conf->mirrors[conf->raid_disks + i].rdev; in raid1_spare_active()
1719 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_spare_active()
1721 print_conf(conf); in raid1_spare_active()
1727 struct r1conf *conf = mddev->private; in raid1_add_disk() local
1732 int last = conf->raid_disks - 1; in raid1_add_disk()
1734 if (mddev->recovery_disabled == conf->recovery_disabled) in raid1_add_disk()
1749 rdev->saved_raid_disk < conf->raid_disks && in raid1_add_disk()
1750 conf->mirrors[rdev->saved_raid_disk].rdev == NULL) in raid1_add_disk()
1754 p = conf->mirrors + mirror; in raid1_add_disk()
1767 conf->fullsync = 1; in raid1_add_disk()
1772 p[conf->raid_disks].rdev == NULL) { in raid1_add_disk()
1778 conf->fullsync = 1; in raid1_add_disk()
1779 rcu_assign_pointer(p[conf->raid_disks].rdev, rdev); in raid1_add_disk()
1785 print_conf(conf); in raid1_add_disk()
1791 struct r1conf *conf = mddev->private; in raid1_remove_disk() local
1794 struct raid1_info *p = conf->mirrors + number; in raid1_remove_disk()
1797 p = conf->mirrors + conf->raid_disks + number; in raid1_remove_disk()
1799 print_conf(conf); in raid1_remove_disk()
1810 mddev->recovery_disabled != conf->recovery_disabled && in raid1_remove_disk()
1811 mddev->degraded < conf->raid_disks) { in raid1_remove_disk()
1825 if (conf->mirrors[conf->raid_disks + number].rdev) { in raid1_remove_disk()
1831 conf->mirrors[conf->raid_disks + number].rdev; in raid1_remove_disk()
1832 freeze_array(conf, 0); in raid1_remove_disk()
1841 unfreeze_array(conf); in raid1_remove_disk()
1846 conf->mirrors[conf->raid_disks + number].rdev = NULL; in raid1_remove_disk()
1847 unfreeze_array(conf); in raid1_remove_disk()
1855 print_conf(conf); in raid1_remove_disk()
1912 struct r1conf *conf = mddev->private; in end_sync_write() local
1915 struct md_rdev *rdev = conf->mirrors[find_bio_disk(r1_bio, bio)].rdev; in end_sync_write()
1926 !is_badblock(conf->mirrors[r1_bio->read_disk].rdev, in end_sync_write()
1969 struct r1conf *conf = mddev->private; in fix_sync_read_error() local
1977 rdev = conf->mirrors[r1_bio->read_disk].rdev; in fix_sync_read_error()
2003 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2012 if (d == conf->raid_disks * 2) in fix_sync_read_error()
2027 for (d = 0; d < conf->raid_disks * 2; d++) { in fix_sync_read_error()
2028 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2035 conf->recovery_disabled = in fix_sync_read_error()
2053 d = conf->raid_disks * 2; in fix_sync_read_error()
2057 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2068 d = conf->raid_disks * 2; in fix_sync_read_error()
2072 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2097 struct r1conf *conf = mddev->private; in process_checks() local
2104 for (i = 0; i < conf->raid_disks * 2; i++) { in process_checks()
2115 conf->mirrors[i].rdev->data_offset; in process_checks()
2116 bio_set_dev(b, conf->mirrors[i].rdev->bdev); in process_checks()
2124 for (primary = 0; primary < conf->raid_disks * 2; primary++) in process_checks()
2128 rdev_dec_pending(conf->mirrors[primary].rdev, mddev); in process_checks()
2132 for (i = 0; i < conf->raid_disks * 2; i++) { in process_checks()
2166 rdev_dec_pending(conf->mirrors[i].rdev, mddev); in process_checks()
2176 struct r1conf *conf = mddev->private; in sync_request_write() local
2178 int disks = conf->raid_disks * 2; in sync_request_write()
2200 if (test_bit(Faulty, &conf->mirrors[i].rdev->flags)) { in sync_request_write()
2206 if (test_bit(FailFast, &conf->mirrors[i].rdev->flags)) in sync_request_write()
2211 md_sync_acct(conf->mirrors[i].rdev->bdev, bio_sectors(wbio)); in sync_request_write()
2227 static void fix_read_error(struct r1conf *conf, int read_disk, in fix_read_error() argument
2230 struct mddev *mddev = conf->mddev; in fix_read_error()
2246 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2256 conf->tmppage, REQ_OP_READ, 0, false)) in fix_read_error()
2264 if (d == conf->raid_disks * 2) in fix_read_error()
2270 struct md_rdev *rdev = conf->mirrors[read_disk].rdev; in fix_read_error()
2279 d = conf->raid_disks * 2; in fix_read_error()
2282 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2288 conf->tmppage, WRITE); in fix_read_error()
2297 d = conf->raid_disks * 2; in fix_read_error()
2300 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2306 conf->tmppage, READ)) { in fix_read_error()
2326 struct r1conf *conf = mddev->private; in narrow_write_error() local
2327 struct md_rdev *rdev = conf->mirrors[i].rdev; in narrow_write_error()
2393 static void handle_sync_write_finished(struct r1conf *conf, struct r1bio *r1_bio) in handle_sync_write_finished() argument
2397 for (m = 0; m < conf->raid_disks * 2 ; m++) { in handle_sync_write_finished()
2398 struct md_rdev *rdev = conf->mirrors[m].rdev; in handle_sync_write_finished()
2409 md_error(conf->mddev, rdev); in handle_sync_write_finished()
2413 md_done_sync(conf->mddev, s, 1); in handle_sync_write_finished()
2416 static void handle_write_finished(struct r1conf *conf, struct r1bio *r1_bio) in handle_write_finished() argument
2421 for (m = 0; m < conf->raid_disks * 2 ; m++) in handle_write_finished()
2423 struct md_rdev *rdev = conf->mirrors[m].rdev; in handle_write_finished()
2427 rdev_dec_pending(rdev, conf->mddev); in handle_write_finished()
2435 md_error(conf->mddev, in handle_write_finished()
2436 conf->mirrors[m].rdev); in handle_write_finished()
2440 rdev_dec_pending(conf->mirrors[m].rdev, in handle_write_finished()
2441 conf->mddev); in handle_write_finished()
2444 spin_lock_irq(&conf->device_lock); in handle_write_finished()
2445 list_add(&r1_bio->retry_list, &conf->bio_end_io_list); in handle_write_finished()
2447 atomic_inc(&conf->nr_queued[idx]); in handle_write_finished()
2448 spin_unlock_irq(&conf->device_lock); in handle_write_finished()
2453 wake_up(&conf->wait_barrier); in handle_write_finished()
2454 md_wakeup_thread(conf->mddev->thread); in handle_write_finished()
2462 static void handle_read_error(struct r1conf *conf, struct r1bio *r1_bio) in handle_read_error() argument
2464 struct mddev *mddev = conf->mddev; in handle_read_error()
2482 rdev = conf->mirrors[r1_bio->read_disk].rdev; in handle_read_error()
2485 freeze_array(conf, 1); in handle_read_error()
2486 fix_read_error(conf, r1_bio->read_disk, in handle_read_error()
2488 unfreeze_array(conf); in handle_read_error()
2495 rdev_dec_pending(rdev, conf->mddev); in handle_read_error()
2496 allow_barrier(conf, r1_bio->sector); in handle_read_error()
2509 struct r1conf *conf = mddev->private; in raid1d() local
2510 struct list_head *head = &conf->retry_list; in raid1d()
2516 if (!list_empty_careful(&conf->bio_end_io_list) && in raid1d()
2519 spin_lock_irqsave(&conf->device_lock, flags); in raid1d()
2521 list_splice_init(&conf->bio_end_io_list, &tmp); in raid1d()
2522 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1d()
2528 atomic_dec(&conf->nr_queued[idx]); in raid1d()
2540 flush_pending_writes(conf); in raid1d()
2542 spin_lock_irqsave(&conf->device_lock, flags); in raid1d()
2544 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1d()
2550 atomic_dec(&conf->nr_queued[idx]); in raid1d()
2551 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1d()
2554 conf = mddev->private; in raid1d()
2558 handle_sync_write_finished(conf, r1_bio); in raid1d()
2563 handle_write_finished(conf, r1_bio); in raid1d()
2565 handle_read_error(conf, r1_bio); in raid1d()
2576 static int init_resync(struct r1conf *conf) in init_resync() argument
2581 BUG_ON(mempool_initialized(&conf->r1buf_pool)); in init_resync()
2583 return mempool_init(&conf->r1buf_pool, buffs, r1buf_pool_alloc, in init_resync()
2584 r1buf_pool_free, conf->poolinfo); in init_resync()
2587 static struct r1bio *raid1_alloc_init_r1buf(struct r1conf *conf) in raid1_alloc_init_r1buf() argument
2589 struct r1bio *r1bio = mempool_alloc(&conf->r1buf_pool, GFP_NOIO); in raid1_alloc_init_r1buf()
2594 for (i = conf->poolinfo->raid_disks; i--; ) { in raid1_alloc_init_r1buf()
2617 struct r1conf *conf = mddev->private; in raid1_sync_request() local
2632 if (!mempool_initialized(&conf->r1buf_pool)) in raid1_sync_request()
2633 if (init_resync(conf)) in raid1_sync_request()
2647 conf->fullsync = 0; in raid1_sync_request()
2650 close_sync(conf); in raid1_sync_request()
2653 conf->cluster_sync_low = 0; in raid1_sync_request()
2654 conf->cluster_sync_high = 0; in raid1_sync_request()
2662 conf->fullsync == 0) { in raid1_sync_request()
2670 !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) { in raid1_sync_request()
2680 if (atomic_read(&conf->nr_waiting[idx])) in raid1_sync_request()
2688 mddev_is_clustered(mddev) && (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high)); in raid1_sync_request()
2691 if (raise_barrier(conf, sector_nr)) in raid1_sync_request()
2694 r1_bio = raid1_alloc_init_r1buf(conf); in raid1_sync_request()
2713 for (i = 0; i < conf->raid_disks * 2; i++) { in raid1_sync_request()
2717 rdev = rcu_dereference(conf->mirrors[i].rdev); in raid1_sync_request()
2720 if (i < conf->raid_disks) in raid1_sync_request()
2785 for (i = 0 ; i < conf->raid_disks * 2 ; i++) in raid1_sync_request()
2787 struct md_rdev *rdev = conf->mirrors[i].rdev; in raid1_sync_request()
2802 conf->recovery_disabled = mddev->recovery_disabled; in raid1_sync_request()
2848 !conf->fullsync && in raid1_sync_request()
2855 for (i = 0 ; i < conf->raid_disks * 2; i++) { in raid1_sync_request()
2878 conf->cluster_sync_high < sector_nr + nr_sectors) { in raid1_sync_request()
2879 conf->cluster_sync_low = mddev->curr_resync_completed; in raid1_sync_request()
2880 conf->cluster_sync_high = conf->cluster_sync_low + CLUSTER_RESYNC_WINDOW_SECTORS; in raid1_sync_request()
2883 conf->cluster_sync_low, in raid1_sync_request()
2884 conf->cluster_sync_high); in raid1_sync_request()
2892 for (i = 0; i < conf->raid_disks * 2 && read_targets; i++) { in raid1_sync_request()
2923 struct r1conf *conf; in setup_conf() local
2929 conf = kzalloc(sizeof(struct r1conf), GFP_KERNEL); in setup_conf()
2930 if (!conf) in setup_conf()
2933 conf->nr_pending = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2935 if (!conf->nr_pending) in setup_conf()
2938 conf->nr_waiting = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2940 if (!conf->nr_waiting) in setup_conf()
2943 conf->nr_queued = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2945 if (!conf->nr_queued) in setup_conf()
2948 conf->barrier = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2950 if (!conf->barrier) in setup_conf()
2953 conf->mirrors = kzalloc(array3_size(sizeof(struct raid1_info), in setup_conf()
2956 if (!conf->mirrors) in setup_conf()
2959 conf->tmppage = alloc_page(GFP_KERNEL); in setup_conf()
2960 if (!conf->tmppage) in setup_conf()
2963 conf->poolinfo = kzalloc(sizeof(*conf->poolinfo), GFP_KERNEL); in setup_conf()
2964 if (!conf->poolinfo) in setup_conf()
2966 conf->poolinfo->raid_disks = mddev->raid_disks * 2; in setup_conf()
2967 err = mempool_init(&conf->r1bio_pool, NR_RAID_BIOS, r1bio_pool_alloc, in setup_conf()
2968 rbio_pool_free, conf->poolinfo); in setup_conf()
2972 err = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0); in setup_conf()
2976 conf->poolinfo->mddev = mddev; in setup_conf()
2979 spin_lock_init(&conf->device_lock); in setup_conf()
2986 disk = conf->mirrors + mddev->raid_disks + disk_idx; in setup_conf()
2988 disk = conf->mirrors + disk_idx; in setup_conf()
2996 conf->raid_disks = mddev->raid_disks; in setup_conf()
2997 conf->mddev = mddev; in setup_conf()
2998 INIT_LIST_HEAD(&conf->retry_list); in setup_conf()
2999 INIT_LIST_HEAD(&conf->bio_end_io_list); in setup_conf()
3001 spin_lock_init(&conf->resync_lock); in setup_conf()
3002 init_waitqueue_head(&conf->wait_barrier); in setup_conf()
3004 bio_list_init(&conf->pending_bio_list); in setup_conf()
3005 conf->pending_count = 0; in setup_conf()
3006 conf->recovery_disabled = mddev->recovery_disabled - 1; in setup_conf()
3009 for (i = 0; i < conf->raid_disks * 2; i++) { in setup_conf()
3011 disk = conf->mirrors + i; in setup_conf()
3013 if (i < conf->raid_disks && in setup_conf()
3014 disk[conf->raid_disks].rdev) { in setup_conf()
3021 disk[conf->raid_disks].rdev; in setup_conf()
3022 disk[conf->raid_disks].rdev = NULL; in setup_conf()
3033 conf->fullsync = 1; in setup_conf()
3038 conf->thread = md_register_thread(raid1d, mddev, "raid1"); in setup_conf()
3039 if (!conf->thread) in setup_conf()
3042 return conf; in setup_conf()
3045 if (conf) { in setup_conf()
3046 mempool_exit(&conf->r1bio_pool); in setup_conf()
3047 kfree(conf->mirrors); in setup_conf()
3048 safe_put_page(conf->tmppage); in setup_conf()
3049 kfree(conf->poolinfo); in setup_conf()
3050 kfree(conf->nr_pending); in setup_conf()
3051 kfree(conf->nr_waiting); in setup_conf()
3052 kfree(conf->nr_queued); in setup_conf()
3053 kfree(conf->barrier); in setup_conf()
3054 bioset_exit(&conf->bio_split); in setup_conf()
3055 kfree(conf); in setup_conf()
3063 struct r1conf *conf; in raid1_run() local
3087 conf = setup_conf(mddev); in raid1_run()
3089 conf = mddev->private; in raid1_run()
3091 if (IS_ERR(conf)) in raid1_run()
3092 return PTR_ERR(conf); in raid1_run()
3109 for (i = 0; i < conf->raid_disks; i++) in raid1_run()
3110 if (conf->mirrors[i].rdev == NULL || in raid1_run()
3111 !test_bit(In_sync, &conf->mirrors[i].rdev->flags) || in raid1_run()
3112 test_bit(Faulty, &conf->mirrors[i].rdev->flags)) in raid1_run()
3117 if (conf->raid_disks - mddev->degraded < 1) { in raid1_run()
3118 md_unregister_thread(&conf->thread); in raid1_run()
3123 if (conf->raid_disks - mddev->degraded == 1) in raid1_run()
3136 mddev->thread = conf->thread; in raid1_run()
3137 conf->thread = NULL; in raid1_run()
3138 mddev->private = conf; in raid1_run()
3160 raid1_free(mddev, conf); in raid1_run()
3166 struct r1conf *conf = priv; in raid1_free() local
3168 mempool_exit(&conf->r1bio_pool); in raid1_free()
3169 kfree(conf->mirrors); in raid1_free()
3170 safe_put_page(conf->tmppage); in raid1_free()
3171 kfree(conf->poolinfo); in raid1_free()
3172 kfree(conf->nr_pending); in raid1_free()
3173 kfree(conf->nr_waiting); in raid1_free()
3174 kfree(conf->nr_queued); in raid1_free()
3175 kfree(conf->barrier); in raid1_free()
3176 bioset_exit(&conf->bio_split); in raid1_free()
3177 kfree(conf); in raid1_free()
3225 struct r1conf *conf = mddev->private; in raid1_reshape() local
3249 if (raid_disks < conf->raid_disks) { in raid1_reshape()
3251 for (d= 0; d < conf->raid_disks; d++) in raid1_reshape()
3252 if (conf->mirrors[d].rdev) in raid1_reshape()
3279 freeze_array(conf, 0); in raid1_reshape()
3282 oldpool = conf->r1bio_pool; in raid1_reshape()
3283 conf->r1bio_pool = newpool; in raid1_reshape()
3285 for (d = d2 = 0; d < conf->raid_disks; d++) { in raid1_reshape()
3286 struct md_rdev *rdev = conf->mirrors[d].rdev; in raid1_reshape()
3298 kfree(conf->mirrors); in raid1_reshape()
3299 conf->mirrors = newmirrors; in raid1_reshape()
3300 kfree(conf->poolinfo); in raid1_reshape()
3301 conf->poolinfo = newpoolinfo; in raid1_reshape()
3303 spin_lock_irqsave(&conf->device_lock, flags); in raid1_reshape()
3304 mddev->degraded += (raid_disks - conf->raid_disks); in raid1_reshape()
3305 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_reshape()
3306 conf->raid_disks = mddev->raid_disks = raid_disks; in raid1_reshape()
3309 unfreeze_array(conf); in raid1_reshape()
3321 struct r1conf *conf = mddev->private; in raid1_quiesce() local
3324 freeze_array(conf, 0); in raid1_quiesce()
3326 unfreeze_array(conf); in raid1_quiesce()
3335 struct r1conf *conf; in raid1_takeover() local
3339 conf = setup_conf(mddev); in raid1_takeover()
3340 if (!IS_ERR(conf)) { in raid1_takeover()
3342 conf->array_frozen = 1; in raid1_takeover()
3346 return conf; in raid1_takeover()