Lines Matching full: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);
241 static void put_all_bios(struct r1conf *conf, struct r1bio *r1_bio) in put_all_bios() argument
245 for (i = 0; i < conf->raid_disks * 2; i++) { in put_all_bios()
255 struct r1conf *conf = r1_bio->mddev->private; in free_r1bio() local
257 put_all_bios(conf, r1_bio); in free_r1bio()
258 mempool_free(r1_bio, &conf->r1bio_pool); in free_r1bio()
263 struct r1conf *conf = r1_bio->mddev->private; in put_buf() local
267 for (i = 0; i < conf->raid_disks * 2; i++) { in put_buf()
270 rdev_dec_pending(conf->mirrors[i].rdev, r1_bio->mddev); in put_buf()
273 mempool_free(r1_bio, &conf->r1buf_pool); in put_buf()
275 lower_barrier(conf, sect); in put_buf()
282 struct r1conf *conf = mddev->private; in reschedule_retry() local
286 spin_lock_irqsave(&conf->device_lock, flags); in reschedule_retry()
287 list_add(&r1_bio->retry_list, &conf->retry_list); in reschedule_retry()
288 atomic_inc(&conf->nr_queued[idx]); in reschedule_retry()
289 spin_unlock_irqrestore(&conf->device_lock, flags); in reschedule_retry()
291 wake_up(&conf->wait_barrier); in reschedule_retry()
313 struct r1conf *conf = r1_bio->mddev->private; in raid_end_bio_io() local
331 allow_barrier(conf, sector); in raid_end_bio_io()
339 struct r1conf *conf = r1_bio->mddev->private; in update_head_pos() local
341 conf->mirrors[disk].head_position = in update_head_pos()
351 struct r1conf *conf = r1_bio->mddev->private; in find_bio_disk() local
352 int raid_disks = conf->raid_disks; in find_bio_disk()
368 struct r1conf *conf = r1_bio->mddev->private; in raid1_end_read_request() local
369 struct md_rdev *rdev = conf->mirrors[r1_bio->read_disk].rdev; in raid1_end_read_request()
389 spin_lock_irqsave(&conf->device_lock, flags); in raid1_end_read_request()
390 if (r1_bio->mddev->degraded == conf->raid_disks || in raid1_end_read_request()
391 (r1_bio->mddev->degraded == conf->raid_disks-1 && in raid1_end_read_request()
394 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_end_read_request()
399 rdev_dec_pending(rdev, conf->mddev); in raid1_end_read_request()
405 mdname(conf->mddev), in raid1_end_read_request()
447 struct r1conf *conf = r1_bio->mddev->private; in raid1_end_write_request() local
450 struct md_rdev *rdev = conf->mirrors[mirror].rdev; in raid1_end_write_request()
464 conf->mddev->recovery); in raid1_end_write_request()
548 rdev_dec_pending(rdev, conf->mddev); in raid1_end_write_request()
593 static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sectors) in read_balance() argument
625 if ((conf->mddev->recovery_cp < this_sector + sectors) || in read_balance()
626 (mddev_is_clustered(conf->mddev) && in read_balance()
627 md_cluster_ops->area_resyncing(conf->mddev, READ, this_sector, in read_balance()
633 for (disk = 0 ; disk < conf->raid_disks * 2 ; disk++) { in read_balance()
640 rdev = rcu_dereference(conf->mirrors[disk].rdev); in read_balance()
707 dist = abs(this_sector - conf->mirrors[disk].head_position); in read_balance()
713 if (conf->mirrors[disk].next_seq_sect == this_sector in read_balance()
716 struct raid1_info *mirror = &conf->mirrors[disk]; in read_balance()
771 rdev = rcu_dereference(conf->mirrors[best_disk].rdev); in read_balance()
777 if (conf->mirrors[best_disk].next_seq_sect != this_sector) in read_balance()
778 conf->mirrors[best_disk].seq_start = this_sector; in read_balance()
780 conf->mirrors[best_disk].next_seq_sect = this_sector + sectors; in read_balance()
788 static void wake_up_barrier(struct r1conf *conf) in wake_up_barrier() argument
790 if (wq_has_sleeper(&conf->wait_barrier)) in wake_up_barrier()
791 wake_up(&conf->wait_barrier); in wake_up_barrier()
794 static void flush_bio_list(struct r1conf *conf, struct bio *bio) in flush_bio_list() argument
797 raid1_prepare_flush_writes(conf->mddev->bitmap); in flush_bio_list()
798 wake_up_barrier(conf); in flush_bio_list()
809 static void flush_pending_writes(struct r1conf *conf) in flush_pending_writes() argument
814 spin_lock_irq(&conf->device_lock); in flush_pending_writes()
816 if (conf->pending_bio_list.head) { in flush_pending_writes()
820 bio = bio_list_get(&conf->pending_bio_list); in flush_pending_writes()
821 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
834 flush_bio_list(conf, bio); in flush_pending_writes()
837 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
864 static int raise_barrier(struct r1conf *conf, sector_t sector_nr) in raise_barrier() argument
868 spin_lock_irq(&conf->resync_lock); in raise_barrier()
871 wait_event_lock_irq(conf->wait_barrier, in raise_barrier()
872 !atomic_read(&conf->nr_waiting[idx]), in raise_barrier()
873 conf->resync_lock); in raise_barrier()
876 atomic_inc(&conf->barrier[idx]); in raise_barrier()
878 * In raise_barrier() we firstly increase conf->barrier[idx] then in raise_barrier()
879 * check conf->nr_pending[idx]. In _wait_barrier() we firstly in raise_barrier()
880 * increase conf->nr_pending[idx] then check conf->barrier[idx]. in raise_barrier()
881 * A memory barrier here to make sure conf->nr_pending[idx] won't in raise_barrier()
882 * be fetched before conf->barrier[idx] is increased. Otherwise in raise_barrier()
889 * B: while conf->nr_pending[idx] is not 0, meaning regular I/O in raise_barrier()
891 * C: while conf->barrier[idx] >= RESYNC_DEPTH, meaning reaches in raise_barrier()
894 wait_event_lock_irq(conf->wait_barrier, in raise_barrier()
895 (!conf->array_frozen && in raise_barrier()
896 !atomic_read(&conf->nr_pending[idx]) && in raise_barrier()
897 atomic_read(&conf->barrier[idx]) < RESYNC_DEPTH) || in raise_barrier()
898 test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery), in raise_barrier()
899 conf->resync_lock); in raise_barrier()
901 if (test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) { in raise_barrier()
902 atomic_dec(&conf->barrier[idx]); in raise_barrier()
903 spin_unlock_irq(&conf->resync_lock); in raise_barrier()
904 wake_up(&conf->wait_barrier); in raise_barrier()
908 atomic_inc(&conf->nr_sync_pending); in raise_barrier()
909 spin_unlock_irq(&conf->resync_lock); in raise_barrier()
914 static void lower_barrier(struct r1conf *conf, sector_t sector_nr) in lower_barrier() argument
918 BUG_ON(atomic_read(&conf->barrier[idx]) <= 0); in lower_barrier()
920 atomic_dec(&conf->barrier[idx]); in lower_barrier()
921 atomic_dec(&conf->nr_sync_pending); in lower_barrier()
922 wake_up(&conf->wait_barrier); in lower_barrier()
925 static bool _wait_barrier(struct r1conf *conf, int idx, bool nowait) in _wait_barrier() argument
930 * We need to increase conf->nr_pending[idx] very early here, in _wait_barrier()
932 * conf->nr_pending[idx] to be 0. Then we can avoid holding in _wait_barrier()
933 * conf->resync_lock when there is no barrier raised in same in _wait_barrier()
937 atomic_inc(&conf->nr_pending[idx]); in _wait_barrier()
939 * In _wait_barrier() we firstly increase conf->nr_pending[idx], then in _wait_barrier()
940 * check conf->barrier[idx]. In raise_barrier() we firstly increase in _wait_barrier()
941 * conf->barrier[idx], then check conf->nr_pending[idx]. A memory in _wait_barrier()
942 * barrier is necessary here to make sure conf->barrier[idx] won't be in _wait_barrier()
943 * fetched before conf->nr_pending[idx] is increased. Otherwise there in _wait_barrier()
950 * here. If during we check conf->barrier[idx], the array is in _wait_barrier()
951 * frozen (conf->array_frozen is 1), and chonf->barrier[idx] is in _wait_barrier()
957 if (!READ_ONCE(conf->array_frozen) && in _wait_barrier()
958 !atomic_read(&conf->barrier[idx])) in _wait_barrier()
962 * After holding conf->resync_lock, conf->nr_pending[idx] in _wait_barrier()
965 * raise_barrer() might be waiting for conf->nr_pending[idx] in _wait_barrier()
968 spin_lock_irq(&conf->resync_lock); in _wait_barrier()
969 atomic_inc(&conf->nr_waiting[idx]); in _wait_barrier()
970 atomic_dec(&conf->nr_pending[idx]); in _wait_barrier()
975 wake_up_barrier(conf); in _wait_barrier()
982 wait_event_lock_irq(conf->wait_barrier, in _wait_barrier()
983 !conf->array_frozen && in _wait_barrier()
984 !atomic_read(&conf->barrier[idx]), in _wait_barrier()
985 conf->resync_lock); in _wait_barrier()
986 atomic_inc(&conf->nr_pending[idx]); in _wait_barrier()
989 atomic_dec(&conf->nr_waiting[idx]); in _wait_barrier()
990 spin_unlock_irq(&conf->resync_lock); in _wait_barrier()
994 static bool wait_read_barrier(struct r1conf *conf, sector_t sector_nr, bool nowait) in wait_read_barrier() argument
1004 * conf->barrier[idx] here, memory barrier is unnecessary as well. in wait_read_barrier()
1006 atomic_inc(&conf->nr_pending[idx]); in wait_read_barrier()
1008 if (!READ_ONCE(conf->array_frozen)) in wait_read_barrier()
1011 spin_lock_irq(&conf->resync_lock); in wait_read_barrier()
1012 atomic_inc(&conf->nr_waiting[idx]); in wait_read_barrier()
1013 atomic_dec(&conf->nr_pending[idx]); in wait_read_barrier()
1018 wake_up_barrier(conf); in wait_read_barrier()
1026 wait_event_lock_irq(conf->wait_barrier, in wait_read_barrier()
1027 !conf->array_frozen, in wait_read_barrier()
1028 conf->resync_lock); in wait_read_barrier()
1029 atomic_inc(&conf->nr_pending[idx]); in wait_read_barrier()
1032 atomic_dec(&conf->nr_waiting[idx]); in wait_read_barrier()
1033 spin_unlock_irq(&conf->resync_lock); in wait_read_barrier()
1037 static bool wait_barrier(struct r1conf *conf, sector_t sector_nr, bool nowait) in wait_barrier() argument
1041 return _wait_barrier(conf, idx, nowait); in wait_barrier()
1044 static void _allow_barrier(struct r1conf *conf, int idx) in _allow_barrier() argument
1046 atomic_dec(&conf->nr_pending[idx]); in _allow_barrier()
1047 wake_up_barrier(conf); in _allow_barrier()
1050 static void allow_barrier(struct r1conf *conf, sector_t sector_nr) in allow_barrier() argument
1054 _allow_barrier(conf, idx); in allow_barrier()
1057 /* conf->resync_lock should be held */
1058 static int get_unqueued_pending(struct r1conf *conf) in get_unqueued_pending() argument
1062 ret = atomic_read(&conf->nr_sync_pending); in get_unqueued_pending()
1064 ret += atomic_read(&conf->nr_pending[idx]) - in get_unqueued_pending()
1065 atomic_read(&conf->nr_queued[idx]); in get_unqueued_pending()
1070 static void freeze_array(struct r1conf *conf, int extra) in freeze_array() argument
1083 * Every flying I/O contributes to a conf->nr_pending[idx], idx is the in freeze_array()
1085 * normal I/O are queued, sum of all conf->nr_pending[] will match sum in freeze_array()
1086 * of all conf->nr_queued[]. But normal I/O failure is an exception, in freeze_array()
1092 * get_unqueued_pendings(conf) gets equal to extra. For in freeze_array()
1095 spin_lock_irq(&conf->resync_lock); in freeze_array()
1096 conf->array_frozen = 1; in freeze_array()
1097 raid1_log(conf->mddev, "wait freeze"); in freeze_array()
1099 conf->wait_barrier, in freeze_array()
1100 get_unqueued_pending(conf) == extra, in freeze_array()
1101 conf->resync_lock, in freeze_array()
1102 flush_pending_writes(conf)); in freeze_array()
1103 spin_unlock_irq(&conf->resync_lock); in freeze_array()
1105 static void unfreeze_array(struct r1conf *conf) in unfreeze_array() argument
1108 spin_lock_irq(&conf->resync_lock); in unfreeze_array()
1109 conf->array_frozen = 0; in unfreeze_array()
1110 spin_unlock_irq(&conf->resync_lock); in unfreeze_array()
1111 wake_up(&conf->wait_barrier); in unfreeze_array()
1169 struct r1conf *conf = mddev->private; in raid1_unplug() local
1173 spin_lock_irq(&conf->device_lock); in raid1_unplug()
1174 bio_list_merge(&conf->pending_bio_list, &plug->pending); in raid1_unplug()
1175 spin_unlock_irq(&conf->device_lock); in raid1_unplug()
1176 wake_up_barrier(conf); in raid1_unplug()
1184 flush_bio_list(conf, bio); in raid1_unplug()
1200 struct r1conf *conf = mddev->private; in alloc_r1bio() local
1203 r1_bio = mempool_alloc(&conf->r1bio_pool, GFP_NOIO); in alloc_r1bio()
1205 memset(r1_bio->bios, 0, conf->raid_disks * sizeof(r1_bio->bios[0])); in alloc_r1bio()
1213 struct r1conf *conf = mddev->private; in raid1_read_request() local
1235 rdev = rcu_dereference(conf->mirrors[r1_bio->read_disk].rdev); in raid1_read_request()
1247 if (!wait_read_barrier(conf, bio->bi_iter.bi_sector, in raid1_read_request()
1263 rdisk = read_balance(conf, r1_bio, &max_sectors); in raid1_read_request()
1276 mirror = conf->mirrors + rdisk; in raid1_read_request()
1297 gfp, &conf->bio_split); in raid1_read_request()
1334 struct r1conf *conf = mddev->private; in raid1_write_request() local
1354 prepare_to_wait(&conf->wait_barrier, in raid1_write_request()
1362 finish_wait(&conf->wait_barrier, &w); in raid1_write_request()
1370 if (!wait_barrier(conf, bio->bi_iter.bi_sector, in raid1_write_request()
1391 disks = conf->raid_disks * 2; in raid1_write_request()
1396 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in raid1_write_request()
1457 rdev_dec_pending(conf->mirrors[j].rdev, mddev); in raid1_write_request()
1458 mempool_free(r1_bio, &conf->r1bio_pool); in raid1_write_request()
1459 allow_barrier(conf, bio->bi_iter.bi_sector); in raid1_write_request()
1467 wait_barrier(conf, bio->bi_iter.bi_sector, false); in raid1_write_request()
1482 GFP_NOIO, &conf->bio_split); in raid1_write_request()
1499 struct md_rdev *rdev = conf->mirrors[i].rdev; in raid1_write_request()
1543 conf->raid_disks - mddev->degraded > 1) in raid1_write_request()
1555 spin_lock_irqsave(&conf->device_lock, flags); in raid1_write_request()
1556 bio_list_add(&conf->pending_bio_list, mbio); in raid1_write_request()
1557 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_write_request()
1565 wake_up_barrier(conf); in raid1_write_request()
1598 struct r1conf *conf = mddev->private; in raid1_status() local
1601 seq_printf(seq, " [%d/%d] [", conf->raid_disks, in raid1_status()
1602 conf->raid_disks - mddev->degraded); in raid1_status()
1604 for (i = 0; i < conf->raid_disks; i++) { in raid1_status()
1605 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in raid1_status()
1631 struct r1conf *conf = mddev->private; in raid1_error() local
1634 spin_lock_irqsave(&conf->device_lock, flags); in raid1_error()
1637 (conf->raid_disks - mddev->degraded) == 1) { in raid1_error()
1641 conf->recovery_disabled = mddev->recovery_disabled; in raid1_error()
1642 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_error()
1650 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_error()
1660 mdname(mddev), conf->raid_disks - mddev->degraded); in raid1_error()
1663 static void print_conf(struct r1conf *conf) in print_conf() argument
1667 pr_debug("RAID1 conf printout:\n"); in print_conf()
1668 if (!conf) { in print_conf()
1669 pr_debug("(!conf)\n"); in print_conf()
1672 pr_debug(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded, in print_conf()
1673 conf->raid_disks); in print_conf()
1676 for (i = 0; i < conf->raid_disks; i++) { in print_conf()
1677 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in print_conf()
1687 static void close_sync(struct r1conf *conf) in close_sync() argument
1692 _wait_barrier(conf, idx, false); in close_sync()
1693 _allow_barrier(conf, idx); in close_sync()
1696 mempool_exit(&conf->r1buf_pool); in close_sync()
1702 struct r1conf *conf = mddev->private; in raid1_spare_active() local
1713 spin_lock_irqsave(&conf->device_lock, flags); in raid1_spare_active()
1714 for (i = 0; i < conf->raid_disks; i++) { in raid1_spare_active()
1715 struct md_rdev *rdev = conf->mirrors[i].rdev; in raid1_spare_active()
1716 struct md_rdev *repl = conf->mirrors[conf->raid_disks + i].rdev; in raid1_spare_active()
1745 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_spare_active()
1747 print_conf(conf); in raid1_spare_active()
1753 struct r1conf *conf = mddev->private; in raid1_add_disk() local
1758 int last = conf->raid_disks - 1; in raid1_add_disk()
1760 if (mddev->recovery_disabled == conf->recovery_disabled) in raid1_add_disk()
1775 rdev->saved_raid_disk < conf->raid_disks && in raid1_add_disk()
1776 conf->mirrors[rdev->saved_raid_disk].rdev == NULL) in raid1_add_disk()
1780 p = conf->mirrors + mirror; in raid1_add_disk()
1793 conf->fullsync = 1; in raid1_add_disk()
1798 p[conf->raid_disks].rdev == NULL && repl_slot < 0) in raid1_add_disk()
1804 p = conf->mirrors + repl_slot; in raid1_add_disk()
1809 conf->fullsync = 1; in raid1_add_disk()
1810 rcu_assign_pointer(p[conf->raid_disks].rdev, rdev); in raid1_add_disk()
1813 print_conf(conf); in raid1_add_disk()
1819 struct r1conf *conf = mddev->private; in raid1_remove_disk() local
1822 struct raid1_info *p = conf->mirrors + number; in raid1_remove_disk()
1824 if (unlikely(number >= conf->raid_disks)) in raid1_remove_disk()
1828 p = conf->mirrors + conf->raid_disks + number; in raid1_remove_disk()
1830 print_conf(conf); in raid1_remove_disk()
1841 mddev->recovery_disabled != conf->recovery_disabled && in raid1_remove_disk()
1842 mddev->degraded < conf->raid_disks) { in raid1_remove_disk()
1856 if (conf->mirrors[conf->raid_disks + number].rdev) { in raid1_remove_disk()
1862 conf->mirrors[conf->raid_disks + number].rdev; in raid1_remove_disk()
1863 freeze_array(conf, 0); in raid1_remove_disk()
1872 unfreeze_array(conf); in raid1_remove_disk()
1877 conf->mirrors[conf->raid_disks + number].rdev = NULL; in raid1_remove_disk()
1878 unfreeze_array(conf); in raid1_remove_disk()
1886 print_conf(conf); in raid1_remove_disk()
1943 struct r1conf *conf = mddev->private; in end_sync_write() local
1946 struct md_rdev *rdev = conf->mirrors[find_bio_disk(r1_bio, bio)].rdev; in end_sync_write()
1957 !is_badblock(conf->mirrors[r1_bio->read_disk].rdev, in end_sync_write()
2000 struct r1conf *conf = mddev->private; in fix_sync_read_error() local
2008 rdev = conf->mirrors[r1_bio->read_disk].rdev; in fix_sync_read_error()
2034 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2043 if (d == conf->raid_disks * 2) in fix_sync_read_error()
2057 for (d = 0; d < conf->raid_disks * 2; d++) { in fix_sync_read_error()
2058 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2078 d = conf->raid_disks * 2; in fix_sync_read_error()
2082 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2093 d = conf->raid_disks * 2; in fix_sync_read_error()
2097 rdev = conf->mirrors[d].rdev; in fix_sync_read_error()
2122 struct r1conf *conf = mddev->private; in process_checks() local
2129 for (i = 0; i < conf->raid_disks * 2; i++) { in process_checks()
2137 bio_reset(b, conf->mirrors[i].rdev->bdev, REQ_OP_READ); in process_checks()
2140 conf->mirrors[i].rdev->data_offset; in process_checks()
2148 for (primary = 0; primary < conf->raid_disks * 2; primary++) in process_checks()
2152 rdev_dec_pending(conf->mirrors[primary].rdev, mddev); in process_checks()
2156 for (i = 0; i < conf->raid_disks * 2; i++) { in process_checks()
2190 rdev_dec_pending(conf->mirrors[i].rdev, mddev); in process_checks()
2200 struct r1conf *conf = mddev->private; in sync_request_write() local
2202 int disks = conf->raid_disks * 2; in sync_request_write()
2213 conf->recovery_disabled = mddev->recovery_disabled; in sync_request_write()
2235 if (test_bit(Faulty, &conf->mirrors[i].rdev->flags)) { in sync_request_write()
2241 if (test_bit(FailFast, &conf->mirrors[i].rdev->flags)) in sync_request_write()
2246 md_sync_acct(conf->mirrors[i].rdev->bdev, bio_sectors(wbio)); in sync_request_write()
2262 static void fix_read_error(struct r1conf *conf, int read_disk, in fix_read_error() argument
2265 struct mddev *mddev = conf->mddev; in fix_read_error()
2281 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2291 conf->tmppage, REQ_OP_READ, false)) in fix_read_error()
2299 if (d == conf->raid_disks * 2) in fix_read_error()
2305 struct md_rdev *rdev = conf->mirrors[read_disk].rdev; in fix_read_error()
2314 d = conf->raid_disks * 2; in fix_read_error()
2317 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2323 conf->tmppage, REQ_OP_WRITE); in fix_read_error()
2331 d = conf->raid_disks * 2; in fix_read_error()
2334 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2340 conf->tmppage, REQ_OP_READ)) { in fix_read_error()
2360 struct r1conf *conf = mddev->private; in narrow_write_error() local
2361 struct md_rdev *rdev = conf->mirrors[i].rdev; in narrow_write_error()
2426 static void handle_sync_write_finished(struct r1conf *conf, struct r1bio *r1_bio) in handle_sync_write_finished() argument
2430 for (m = 0; m < conf->raid_disks * 2 ; m++) { in handle_sync_write_finished()
2431 struct md_rdev *rdev = conf->mirrors[m].rdev; in handle_sync_write_finished()
2442 md_error(conf->mddev, rdev); in handle_sync_write_finished()
2446 md_done_sync(conf->mddev, s, 1); in handle_sync_write_finished()
2449 static void handle_write_finished(struct r1conf *conf, struct r1bio *r1_bio) in handle_write_finished() argument
2454 for (m = 0; m < conf->raid_disks * 2 ; m++) in handle_write_finished()
2456 struct md_rdev *rdev = conf->mirrors[m].rdev; in handle_write_finished()
2460 rdev_dec_pending(rdev, conf->mddev); in handle_write_finished()
2468 md_error(conf->mddev, in handle_write_finished()
2469 conf->mirrors[m].rdev); in handle_write_finished()
2470 rdev_dec_pending(conf->mirrors[m].rdev, in handle_write_finished()
2471 conf->mddev); in handle_write_finished()
2474 spin_lock_irq(&conf->device_lock); in handle_write_finished()
2475 list_add(&r1_bio->retry_list, &conf->bio_end_io_list); in handle_write_finished()
2477 atomic_inc(&conf->nr_queued[idx]); in handle_write_finished()
2478 spin_unlock_irq(&conf->device_lock); in handle_write_finished()
2483 wake_up(&conf->wait_barrier); in handle_write_finished()
2484 md_wakeup_thread(conf->mddev->thread); in handle_write_finished()
2492 static void handle_read_error(struct r1conf *conf, struct r1bio *r1_bio) in handle_read_error() argument
2494 struct mddev *mddev = conf->mddev; in handle_read_error()
2513 rdev = conf->mirrors[r1_bio->read_disk].rdev; in handle_read_error()
2516 freeze_array(conf, 1); in handle_read_error()
2517 fix_read_error(conf, r1_bio->read_disk, in handle_read_error()
2519 unfreeze_array(conf); in handle_read_error()
2526 rdev_dec_pending(rdev, conf->mddev); in handle_read_error()
2533 allow_barrier(conf, sector); in handle_read_error()
2541 struct r1conf *conf = mddev->private; in raid1d() local
2542 struct list_head *head = &conf->retry_list; in raid1d()
2548 if (!list_empty_careful(&conf->bio_end_io_list) && in raid1d()
2551 spin_lock_irqsave(&conf->device_lock, flags); in raid1d()
2553 list_splice_init(&conf->bio_end_io_list, &tmp); in raid1d()
2554 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1d()
2560 atomic_dec(&conf->nr_queued[idx]); in raid1d()
2570 flush_pending_writes(conf); in raid1d()
2572 spin_lock_irqsave(&conf->device_lock, flags); in raid1d()
2574 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1d()
2580 atomic_dec(&conf->nr_queued[idx]); in raid1d()
2581 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1d()
2584 conf = mddev->private; in raid1d()
2588 handle_sync_write_finished(conf, r1_bio); in raid1d()
2593 handle_write_finished(conf, r1_bio); in raid1d()
2595 handle_read_error(conf, r1_bio); in raid1d()
2606 static int init_resync(struct r1conf *conf) in init_resync() argument
2611 BUG_ON(mempool_initialized(&conf->r1buf_pool)); in init_resync()
2613 return mempool_init(&conf->r1buf_pool, buffs, r1buf_pool_alloc, in init_resync()
2614 r1buf_pool_free, conf->poolinfo); in init_resync()
2617 static struct r1bio *raid1_alloc_init_r1buf(struct r1conf *conf) in raid1_alloc_init_r1buf() argument
2619 struct r1bio *r1bio = mempool_alloc(&conf->r1buf_pool, GFP_NOIO); in raid1_alloc_init_r1buf()
2624 for (i = conf->poolinfo->raid_disks; i--; ) { in raid1_alloc_init_r1buf()
2647 struct r1conf *conf = mddev->private; in raid1_sync_request() local
2662 if (!mempool_initialized(&conf->r1buf_pool)) in raid1_sync_request()
2663 if (init_resync(conf)) in raid1_sync_request()
2677 conf->fullsync = 0; in raid1_sync_request()
2680 close_sync(conf); in raid1_sync_request()
2683 conf->cluster_sync_low = 0; in raid1_sync_request()
2684 conf->cluster_sync_high = 0; in raid1_sync_request()
2692 conf->fullsync == 0) { in raid1_sync_request()
2700 !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) { in raid1_sync_request()
2710 if (atomic_read(&conf->nr_waiting[idx])) in raid1_sync_request()
2718 mddev_is_clustered(mddev) && (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high)); in raid1_sync_request()
2721 if (raise_barrier(conf, sector_nr)) in raid1_sync_request()
2724 r1_bio = raid1_alloc_init_r1buf(conf); in raid1_sync_request()
2743 for (i = 0; i < conf->raid_disks * 2; i++) { in raid1_sync_request()
2747 rdev = rcu_dereference(conf->mirrors[i].rdev); in raid1_sync_request()
2750 if (i < conf->raid_disks) in raid1_sync_request()
2815 for (i = 0 ; i < conf->raid_disks * 2 ; i++) in raid1_sync_request()
2817 struct md_rdev *rdev = conf->mirrors[i].rdev; in raid1_sync_request()
2832 conf->recovery_disabled = mddev->recovery_disabled; in raid1_sync_request()
2878 !conf->fullsync && in raid1_sync_request()
2885 for (i = 0 ; i < conf->raid_disks * 2; i++) { in raid1_sync_request()
2908 conf->cluster_sync_high < sector_nr + nr_sectors) { in raid1_sync_request()
2909 conf->cluster_sync_low = mddev->curr_resync_completed; in raid1_sync_request()
2910 conf->cluster_sync_high = conf->cluster_sync_low + CLUSTER_RESYNC_WINDOW_SECTORS; in raid1_sync_request()
2913 conf->cluster_sync_low, in raid1_sync_request()
2914 conf->cluster_sync_high); in raid1_sync_request()
2922 for (i = 0; i < conf->raid_disks * 2 && read_targets; i++) { in raid1_sync_request()
2953 struct r1conf *conf; in setup_conf() local
2959 conf = kzalloc(sizeof(struct r1conf), GFP_KERNEL); in setup_conf()
2960 if (!conf) in setup_conf()
2963 conf->nr_pending = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2965 if (!conf->nr_pending) in setup_conf()
2968 conf->nr_waiting = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2970 if (!conf->nr_waiting) in setup_conf()
2973 conf->nr_queued = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2975 if (!conf->nr_queued) in setup_conf()
2978 conf->barrier = kcalloc(BARRIER_BUCKETS_NR, in setup_conf()
2980 if (!conf->barrier) in setup_conf()
2983 conf->mirrors = kzalloc(array3_size(sizeof(struct raid1_info), in setup_conf()
2986 if (!conf->mirrors) in setup_conf()
2989 conf->tmppage = alloc_page(GFP_KERNEL); in setup_conf()
2990 if (!conf->tmppage) in setup_conf()
2993 conf->poolinfo = kzalloc(sizeof(*conf->poolinfo), GFP_KERNEL); in setup_conf()
2994 if (!conf->poolinfo) in setup_conf()
2996 conf->poolinfo->raid_disks = mddev->raid_disks * 2; in setup_conf()
2997 err = mempool_init(&conf->r1bio_pool, NR_RAID_BIOS, r1bio_pool_alloc, in setup_conf()
2998 rbio_pool_free, conf->poolinfo); in setup_conf()
3002 err = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0); in setup_conf()
3006 conf->poolinfo->mddev = mddev; in setup_conf()
3009 spin_lock_init(&conf->device_lock); in setup_conf()
3016 disk = conf->mirrors + mddev->raid_disks + disk_idx; in setup_conf()
3018 disk = conf->mirrors + disk_idx; in setup_conf()
3026 conf->raid_disks = mddev->raid_disks; in setup_conf()
3027 conf->mddev = mddev; in setup_conf()
3028 INIT_LIST_HEAD(&conf->retry_list); in setup_conf()
3029 INIT_LIST_HEAD(&conf->bio_end_io_list); in setup_conf()
3031 spin_lock_init(&conf->resync_lock); in setup_conf()
3032 init_waitqueue_head(&conf->wait_barrier); in setup_conf()
3034 bio_list_init(&conf->pending_bio_list); in setup_conf()
3035 conf->recovery_disabled = mddev->recovery_disabled - 1; in setup_conf()
3038 for (i = 0; i < conf->raid_disks * 2; i++) { in setup_conf()
3040 disk = conf->mirrors + i; in setup_conf()
3042 if (i < conf->raid_disks && in setup_conf()
3043 disk[conf->raid_disks].rdev) { in setup_conf()
3050 disk[conf->raid_disks].rdev; in setup_conf()
3051 disk[conf->raid_disks].rdev = NULL; in setup_conf()
3062 conf->fullsync = 1; in setup_conf()
3067 rcu_assign_pointer(conf->thread, in setup_conf()
3069 if (!conf->thread) in setup_conf()
3072 return conf; in setup_conf()
3075 if (conf) { in setup_conf()
3076 mempool_exit(&conf->r1bio_pool); in setup_conf()
3077 kfree(conf->mirrors); in setup_conf()
3078 safe_put_page(conf->tmppage); in setup_conf()
3079 kfree(conf->poolinfo); in setup_conf()
3080 kfree(conf->nr_pending); in setup_conf()
3081 kfree(conf->nr_waiting); in setup_conf()
3082 kfree(conf->nr_queued); in setup_conf()
3083 kfree(conf->barrier); in setup_conf()
3084 bioset_exit(&conf->bio_split); in setup_conf()
3085 kfree(conf); in setup_conf()
3093 struct r1conf *conf; in raid1_run() local
3116 conf = setup_conf(mddev); in raid1_run()
3118 conf = mddev->private; in raid1_run()
3120 if (IS_ERR(conf)) in raid1_run()
3121 return PTR_ERR(conf); in raid1_run()
3134 for (i = 0; i < conf->raid_disks; i++) in raid1_run()
3135 if (conf->mirrors[i].rdev == NULL || in raid1_run()
3136 !test_bit(In_sync, &conf->mirrors[i].rdev->flags) || in raid1_run()
3137 test_bit(Faulty, &conf->mirrors[i].rdev->flags)) in raid1_run()
3142 if (conf->raid_disks - mddev->degraded < 1) { in raid1_run()
3143 md_unregister_thread(mddev, &conf->thread); in raid1_run()
3148 if (conf->raid_disks - mddev->degraded == 1) in raid1_run()
3161 rcu_assign_pointer(mddev->thread, conf->thread); in raid1_run()
3162 rcu_assign_pointer(conf->thread, NULL); in raid1_run()
3163 mddev->private = conf; in raid1_run()
3176 raid1_free(mddev, conf); in raid1_run()
3182 struct r1conf *conf = priv; in raid1_free() local
3184 mempool_exit(&conf->r1bio_pool); in raid1_free()
3185 kfree(conf->mirrors); in raid1_free()
3186 safe_put_page(conf->tmppage); in raid1_free()
3187 kfree(conf->poolinfo); in raid1_free()
3188 kfree(conf->nr_pending); in raid1_free()
3189 kfree(conf->nr_waiting); in raid1_free()
3190 kfree(conf->nr_queued); in raid1_free()
3191 kfree(conf->barrier); in raid1_free()
3192 bioset_exit(&conf->bio_split); in raid1_free()
3193 kfree(conf); in raid1_free()
3229 * 2/ resize conf->mirrors in raid1_reshape()
3233 * Then resize conf->mirrors and swap in the new r1bio pool. in raid1_reshape()
3241 struct r1conf *conf = mddev->private; in raid1_reshape() local
3265 if (raid_disks < conf->raid_disks) { in raid1_reshape()
3267 for (d= 0; d < conf->raid_disks; d++) in raid1_reshape()
3268 if (conf->mirrors[d].rdev) in raid1_reshape()
3295 freeze_array(conf, 0); in raid1_reshape()
3298 oldpool = conf->r1bio_pool; in raid1_reshape()
3299 conf->r1bio_pool = newpool; in raid1_reshape()
3300 init_waitqueue_head(&conf->r1bio_pool.wait); in raid1_reshape()
3302 for (d = d2 = 0; d < conf->raid_disks; d++) { in raid1_reshape()
3303 struct md_rdev *rdev = conf->mirrors[d].rdev; in raid1_reshape()
3315 kfree(conf->mirrors); in raid1_reshape()
3316 conf->mirrors = newmirrors; in raid1_reshape()
3317 kfree(conf->poolinfo); in raid1_reshape()
3318 conf->poolinfo = newpoolinfo; in raid1_reshape()
3320 spin_lock_irqsave(&conf->device_lock, flags); in raid1_reshape()
3321 mddev->degraded += (raid_disks - conf->raid_disks); in raid1_reshape()
3322 spin_unlock_irqrestore(&conf->device_lock, flags); in raid1_reshape()
3323 conf->raid_disks = mddev->raid_disks = raid_disks; in raid1_reshape()
3326 unfreeze_array(conf); in raid1_reshape()
3338 struct r1conf *conf = mddev->private; in raid1_quiesce() local
3341 freeze_array(conf, 0); in raid1_quiesce()
3343 unfreeze_array(conf); in raid1_quiesce()
3352 struct r1conf *conf; in raid1_takeover() local
3356 conf = setup_conf(mddev); in raid1_takeover()
3357 if (!IS_ERR(conf)) { in raid1_takeover()
3359 conf->array_frozen = 1; in raid1_takeover()
3363 return conf; in raid1_takeover()