Lines Matching full:conf
67 static void allow_barrier(struct r10conf *conf);
68 static void lower_barrier(struct r10conf *conf);
69 static int _enough(struct r10conf *conf, int previous, int ignore);
70 static int enough(struct r10conf *conf, int ignore);
75 static void end_reshape(struct r10conf *conf);
83 #define cmd_before(conf, cmd) \ argument
85 write_sequnlock_irq(&(conf)->resync_lock); \
88 #define cmd_after(conf) write_seqlock_irq(&(conf)->resync_lock) argument
90 #define wait_event_barrier_cmd(conf, cond, cmd) \ argument
91 wait_event_cmd((conf)->wait_barrier, cond, cmd_before(conf, cmd), \
92 cmd_after(conf))
94 #define wait_event_barrier(conf, cond) \ argument
95 wait_event_barrier_cmd(conf, cond, NULL_CMD)
108 struct r10conf *conf = data; in r10bio_pool_alloc() local
109 int size = offsetof(struct r10bio, devs[conf->geo.raid_disks]); in r10bio_pool_alloc()
133 struct r10conf *conf = data; in r10buf_pool_alloc() local
140 r10_bio = r10bio_pool_alloc(gfp_flags, conf); in r10buf_pool_alloc()
144 if (test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery) || in r10buf_pool_alloc()
145 test_bit(MD_RECOVERY_RESHAPE, &conf->mddev->recovery)) in r10buf_pool_alloc()
146 nalloc = conf->copies; /* resync */ in r10buf_pool_alloc()
151 if (!conf->have_replacement) in r10buf_pool_alloc()
168 if (!conf->have_replacement) in r10buf_pool_alloc()
191 &conf->mddev->recovery)) { in r10buf_pool_alloc()
225 rbio_pool_free(r10_bio, conf); in r10buf_pool_alloc()
231 struct r10conf *conf = data; in r10buf_pool_free() local
236 for (j = conf->copies; j--; ) { in r10buf_pool_free()
256 rbio_pool_free(r10bio, conf); in r10buf_pool_free()
259 static void put_all_bios(struct r10conf *conf, struct r10bio *r10_bio) in put_all_bios() argument
263 for (i = 0; i < conf->geo.raid_disks; i++) { in put_all_bios()
277 struct r10conf *conf = r10_bio->mddev->private; in free_r10bio() local
279 put_all_bios(conf, r10_bio); in free_r10bio()
280 mempool_free(r10_bio, &conf->r10bio_pool); in free_r10bio()
285 struct r10conf *conf = r10_bio->mddev->private; in put_buf() local
287 mempool_free(r10_bio, &conf->r10buf_pool); in put_buf()
289 lower_barrier(conf); in put_buf()
292 static void wake_up_barrier(struct r10conf *conf) in wake_up_barrier() argument
294 if (wq_has_sleeper(&conf->wait_barrier)) in wake_up_barrier()
295 wake_up(&conf->wait_barrier); in wake_up_barrier()
302 struct r10conf *conf = mddev->private; in reschedule_retry() local
304 spin_lock_irqsave(&conf->device_lock, flags); in reschedule_retry()
305 list_add(&r10_bio->retry_list, &conf->retry_list); in reschedule_retry()
306 conf->nr_queued ++; in reschedule_retry()
307 spin_unlock_irqrestore(&conf->device_lock, flags); in reschedule_retry()
310 wake_up(&conf->wait_barrier); in reschedule_retry()
323 struct r10conf *conf = r10_bio->mddev->private; in raid_end_bio_io() local
333 allow_barrier(conf); in raid_end_bio_io()
343 struct r10conf *conf = r10_bio->mddev->private; in update_head_pos() local
345 conf->mirrors[r10_bio->devs[slot].devnum].head_position = in update_head_pos()
352 static int find_bio_disk(struct r10conf *conf, struct r10bio *r10_bio, in find_bio_disk() argument
358 for (slot = 0; slot < conf->geo.raid_disks; slot++) { in find_bio_disk()
382 struct r10conf *conf = r10_bio->mddev->private; in raid10_end_read_request() local
408 if (!_enough(conf, test_bit(R10BIO_Previous, &r10_bio->state), in raid10_end_read_request()
414 rdev_dec_pending(rdev, conf->mddev); in raid10_end_read_request()
420 mdname(conf->mddev), in raid10_end_read_request()
453 struct r10conf *conf = r10_bio->mddev->private; in raid10_end_write_request() local
461 dev = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in raid10_end_write_request()
464 rdev = conf->mirrors[dev].replacement; in raid10_end_write_request()
468 rdev = conf->mirrors[dev].rdev; in raid10_end_write_request()
551 rdev_dec_pending(rdev, conf->mddev); in raid10_end_write_request()
644 static void raid10_find_phys(struct r10conf *conf, struct r10bio *r10bio) in raid10_find_phys() argument
646 struct geom *geo = &conf->geo; in raid10_find_phys()
648 if (conf->reshape_progress != MaxSector && in raid10_find_phys()
649 ((r10bio->sector >= conf->reshape_progress) != in raid10_find_phys()
650 conf->mddev->reshape_backwards)) { in raid10_find_phys()
652 geo = &conf->prev; in raid10_find_phys()
659 static sector_t raid10_find_virt(struct r10conf *conf, sector_t sector, int dev) in raid10_find_virt() argument
662 /* Never use conf->prev as this is only called during resync in raid10_find_virt()
665 struct geom *geo = &conf->geo; in raid10_find_virt()
723 static struct md_rdev *read_balance(struct r10conf *conf, in read_balance() argument
737 struct geom *geo = &conf->geo; in read_balance()
739 raid10_find_phys(conf, r10_bio); in read_balance()
755 if ((conf->mddev->recovery_cp < MaxSector in read_balance()
756 && (this_sector + sectors >= conf->next_resync)) || in read_balance()
757 (mddev_is_clustered(conf->mddev) && in read_balance()
758 md_cluster_ops->area_resyncing(conf->mddev, READ, this_sector, in read_balance()
762 for (slot = 0; slot < conf->copies ; slot++) { in read_balance()
772 rdev = rcu_dereference(conf->mirrors[disk].replacement); in read_balance()
782 rdev = rcu_dereference(conf->mirrors[disk].rdev); in read_balance()
850 conf->mirrors[disk].head_position); in read_balance()
858 if (slot >= conf->copies) { in read_balance()
879 static void flush_pending_writes(struct r10conf *conf) in flush_pending_writes() argument
884 spin_lock_irq(&conf->device_lock); in flush_pending_writes()
886 if (conf->pending_bio_list.head) { in flush_pending_writes()
890 bio = bio_list_get(&conf->pending_bio_list); in flush_pending_writes()
891 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
905 raid1_prepare_flush_writes(conf->mddev->bitmap); in flush_pending_writes()
906 wake_up(&conf->wait_barrier); in flush_pending_writes()
917 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
942 static void raise_barrier(struct r10conf *conf, int force) in raise_barrier() argument
944 write_seqlock_irq(&conf->resync_lock); in raise_barrier()
946 if (WARN_ON_ONCE(force && !conf->barrier)) in raise_barrier()
950 wait_event_barrier(conf, force || !conf->nr_waiting); in raise_barrier()
953 WRITE_ONCE(conf->barrier, conf->barrier + 1); in raise_barrier()
956 wait_event_barrier(conf, !atomic_read(&conf->nr_pending) && in raise_barrier()
957 conf->barrier < RESYNC_DEPTH); in raise_barrier()
959 write_sequnlock_irq(&conf->resync_lock); in raise_barrier()
962 static void lower_barrier(struct r10conf *conf) in lower_barrier() argument
966 write_seqlock_irqsave(&conf->resync_lock, flags); in lower_barrier()
967 WRITE_ONCE(conf->barrier, conf->barrier - 1); in lower_barrier()
968 write_sequnlock_irqrestore(&conf->resync_lock, flags); in lower_barrier()
969 wake_up(&conf->wait_barrier); in lower_barrier()
972 static bool stop_waiting_barrier(struct r10conf *conf) in stop_waiting_barrier() argument
978 if (!conf->barrier) in stop_waiting_barrier()
987 if (atomic_read(&conf->nr_pending) && bio_list && in stop_waiting_barrier()
992 thread = rcu_dereference_protected(conf->mddev->thread, true); in stop_waiting_barrier()
999 WARN_ON_ONCE(atomic_read(&conf->nr_pending) == 0); in stop_waiting_barrier()
1006 static bool wait_barrier_nolock(struct r10conf *conf) in wait_barrier_nolock() argument
1008 unsigned int seq = read_seqbegin(&conf->resync_lock); in wait_barrier_nolock()
1010 if (READ_ONCE(conf->barrier)) in wait_barrier_nolock()
1013 atomic_inc(&conf->nr_pending); in wait_barrier_nolock()
1014 if (!read_seqretry(&conf->resync_lock, seq)) in wait_barrier_nolock()
1017 if (atomic_dec_and_test(&conf->nr_pending)) in wait_barrier_nolock()
1018 wake_up_barrier(conf); in wait_barrier_nolock()
1023 static bool wait_barrier(struct r10conf *conf, bool nowait) in wait_barrier() argument
1027 if (wait_barrier_nolock(conf)) in wait_barrier()
1030 write_seqlock_irq(&conf->resync_lock); in wait_barrier()
1031 if (conf->barrier) { in wait_barrier()
1036 conf->nr_waiting++; in wait_barrier()
1037 raid10_log(conf->mddev, "wait barrier"); in wait_barrier()
1038 wait_event_barrier(conf, stop_waiting_barrier(conf)); in wait_barrier()
1039 conf->nr_waiting--; in wait_barrier()
1041 if (!conf->nr_waiting) in wait_barrier()
1042 wake_up(&conf->wait_barrier); in wait_barrier()
1046 atomic_inc(&conf->nr_pending); in wait_barrier()
1047 write_sequnlock_irq(&conf->resync_lock); in wait_barrier()
1051 static void allow_barrier(struct r10conf *conf) in allow_barrier() argument
1053 if ((atomic_dec_and_test(&conf->nr_pending)) || in allow_barrier()
1054 (conf->array_freeze_pending)) in allow_barrier()
1055 wake_up_barrier(conf); in allow_barrier()
1058 static void freeze_array(struct r10conf *conf, int extra) in freeze_array() argument
1072 write_seqlock_irq(&conf->resync_lock); in freeze_array()
1073 conf->array_freeze_pending++; in freeze_array()
1074 WRITE_ONCE(conf->barrier, conf->barrier + 1); in freeze_array()
1075 conf->nr_waiting++; in freeze_array()
1076 wait_event_barrier_cmd(conf, atomic_read(&conf->nr_pending) == in freeze_array()
1077 conf->nr_queued + extra, flush_pending_writes(conf)); in freeze_array()
1078 conf->array_freeze_pending--; in freeze_array()
1079 write_sequnlock_irq(&conf->resync_lock); in freeze_array()
1082 static void unfreeze_array(struct r10conf *conf) in unfreeze_array() argument
1085 write_seqlock_irq(&conf->resync_lock); in unfreeze_array()
1086 WRITE_ONCE(conf->barrier, conf->barrier - 1); in unfreeze_array()
1087 conf->nr_waiting--; in unfreeze_array()
1088 wake_up(&conf->wait_barrier); in unfreeze_array()
1089 write_sequnlock_irq(&conf->resync_lock); in unfreeze_array()
1106 struct r10conf *conf = mddev->private; in raid10_unplug() local
1110 spin_lock_irq(&conf->device_lock); in raid10_unplug()
1111 bio_list_merge(&conf->pending_bio_list, &plug->pending); in raid10_unplug()
1112 spin_unlock_irq(&conf->device_lock); in raid10_unplug()
1113 wake_up_barrier(conf); in raid10_unplug()
1122 wake_up_barrier(conf); in raid10_unplug()
1140 static bool regular_request_wait(struct mddev *mddev, struct r10conf *conf, in regular_request_wait() argument
1144 if (!wait_barrier(conf, bio->bi_opf & REQ_NOWAIT)) { in regular_request_wait()
1149 bio->bi_iter.bi_sector < conf->reshape_progress && in regular_request_wait()
1150 bio->bi_iter.bi_sector + sectors > conf->reshape_progress) { in regular_request_wait()
1151 allow_barrier(conf); in regular_request_wait()
1156 raid10_log(conf->mddev, "wait reshape"); in regular_request_wait()
1157 wait_event(conf->wait_barrier, in regular_request_wait()
1158 conf->reshape_progress <= bio->bi_iter.bi_sector || in regular_request_wait()
1159 conf->reshape_progress >= bio->bi_iter.bi_sector + in regular_request_wait()
1161 wait_barrier(conf, false); in regular_request_wait()
1169 struct r10conf *conf = mddev->private; in raid10_read_request() local
1184 * we must use the one in conf. in raid10_read_request()
1197 err_rdev = rcu_dereference(conf->mirrors[disk].rdev); in raid10_read_request()
1208 if (!regular_request_wait(mddev, conf, bio, r10_bio->sectors)) in raid10_read_request()
1210 rdev = read_balance(conf, r10_bio, &max_sectors); in raid10_read_request()
1227 gfp, &conf->bio_split); in raid10_read_request()
1229 allow_barrier(conf); in raid10_read_request()
1231 wait_barrier(conf, false); in raid10_read_request()
1271 struct r10conf *conf = mddev->private; in raid10_write_one_disk() local
1277 rdev = conf->mirrors[devnum].replacement; in raid10_write_one_disk()
1281 rdev = conf->mirrors[devnum].rdev; in raid10_write_one_disk()
1284 rdev = conf->mirrors[devnum].rdev; in raid10_write_one_disk()
1297 &conf->mirrors[devnum].rdev->flags) in raid10_write_one_disk()
1298 && enough(conf, devnum)) in raid10_write_one_disk()
1302 if (conf->mddev->gendisk) in raid10_write_one_disk()
1303 trace_block_bio_remap(mbio, disk_devt(conf->mddev->gendisk), in raid10_write_one_disk()
1310 if (!raid1_add_bio_to_plug(mddev, mbio, raid10_unplug, conf->copies)) { in raid10_write_one_disk()
1311 spin_lock_irqsave(&conf->device_lock, flags); in raid10_write_one_disk()
1312 bio_list_add(&conf->pending_bio_list, mbio); in raid10_write_one_disk()
1313 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_write_one_disk()
1340 struct r10conf *conf = mddev->private; in wait_blocked_dev() local
1346 for (i = 0; i < conf->copies; i++) { in wait_blocked_dev()
1349 rdev = dereference_rdev_and_rrdev(&conf->mirrors[i], &rrdev); in wait_blocked_dev()
1392 allow_barrier(conf); in wait_blocked_dev()
1393 raid10_log(conf->mddev, "%s wait rdev %d blocked", in wait_blocked_dev()
1396 wait_barrier(conf, false); in wait_blocked_dev()
1404 struct r10conf *conf = mddev->private; in raid10_write_request() local
1420 prepare_to_wait(&conf->wait_barrier, in raid10_write_request()
1427 finish_wait(&conf->wait_barrier, &w); in raid10_write_request()
1431 if (!regular_request_wait(mddev, conf, bio, sectors)) in raid10_write_request()
1435 ? (bio->bi_iter.bi_sector < conf->reshape_safe && in raid10_write_request()
1436 bio->bi_iter.bi_sector + sectors > conf->reshape_progress) in raid10_write_request()
1437 : (bio->bi_iter.bi_sector + sectors > conf->reshape_safe && in raid10_write_request()
1438 bio->bi_iter.bi_sector < conf->reshape_progress))) { in raid10_write_request()
1440 mddev->reshape_position = conf->reshape_progress; in raid10_write_request()
1445 allow_barrier(conf); in raid10_write_request()
1449 raid10_log(conf->mddev, "wait reshape metadata"); in raid10_write_request()
1453 conf->reshape_safe = mddev->reshape_position; in raid10_write_request()
1467 raid10_find_phys(conf, r10_bio); in raid10_write_request()
1474 for (i = 0; i < conf->copies; i++) { in raid10_write_request()
1478 rdev = dereference_rdev_and_rrdev(&conf->mirrors[d], &rrdev); in raid10_write_request()
1529 GFP_NOIO, &conf->bio_split); in raid10_write_request()
1531 allow_barrier(conf); in raid10_write_request()
1533 wait_barrier(conf, false); in raid10_write_request()
1542 for (i = 0; i < conf->copies; i++) { in raid10_write_request()
1553 struct r10conf *conf = mddev->private; in __make_request() local
1556 r10_bio = mempool_alloc(&conf->r10bio_pool, GFP_NOIO); in __make_request()
1566 conf->geo.raid_disks); in __make_request()
1576 struct r10conf *conf = r10bio->mddev->private; in raid_end_discard_bio() local
1581 allow_barrier(conf); in raid_end_discard_bio()
1599 struct r10conf *conf = r10_bio->mddev->private; in raid10_end_discard_request() local
1610 dev = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in raid10_end_discard_request()
1612 rdev = conf->mirrors[dev].replacement; in raid10_end_discard_request()
1620 rdev = conf->mirrors[dev].rdev; in raid10_end_discard_request()
1624 rdev_dec_pending(rdev, conf->mddev); in raid10_end_discard_request()
1635 struct r10conf *conf = mddev->private; in raid10_handle_discard() local
1636 struct geom *geo = &conf->geo; in raid10_handle_discard()
1661 wait_barrier(conf, false); in raid10_handle_discard()
1698 split = bio_split(bio, split_size, GFP_NOIO, &conf->bio_split); in raid10_handle_discard()
1700 allow_barrier(conf); in raid10_handle_discard()
1703 wait_barrier(conf, false); in raid10_handle_discard()
1708 split = bio_split(bio, split_size, GFP_NOIO, &conf->bio_split); in raid10_handle_discard()
1710 allow_barrier(conf); in raid10_handle_discard()
1714 wait_barrier(conf, false); in raid10_handle_discard()
1744 r10_bio = mempool_alloc(&conf->r10bio_pool, GFP_NOIO); in raid10_handle_discard()
1776 rdev = dereference_rdev_and_rrdev(&conf->mirrors[disk], &rrdev); in raid10_handle_discard()
1836 struct md_rdev *rdev = conf->mirrors[disk].rdev; in raid10_handle_discard()
1850 struct md_rdev *rrdev = conf->mirrors[disk].replacement; in raid10_handle_discard()
1872 wait_barrier(conf, false); in raid10_handle_discard()
1880 allow_barrier(conf); in raid10_handle_discard()
1886 struct r10conf *conf = mddev->private; in raid10_make_request() local
1887 sector_t chunk_mask = (conf->geo.chunk_mask & conf->prev.chunk_mask); in raid10_make_request()
1908 && (conf->geo.near_copies < conf->geo.raid_disks in raid10_make_request()
1909 || conf->prev.near_copies < in raid10_make_request()
1910 conf->prev.raid_disks))) in raid10_make_request()
1917 wake_up_barrier(conf); in raid10_make_request()
1923 struct r10conf *conf = mddev->private; in raid10_status() local
1926 if (conf->geo.near_copies < conf->geo.raid_disks) in raid10_status()
1928 if (conf->geo.near_copies > 1) in raid10_status()
1929 seq_printf(seq, " %d near-copies", conf->geo.near_copies); in raid10_status()
1930 if (conf->geo.far_copies > 1) { in raid10_status()
1931 if (conf->geo.far_offset) in raid10_status()
1932 seq_printf(seq, " %d offset-copies", conf->geo.far_copies); in raid10_status()
1934 seq_printf(seq, " %d far-copies", conf->geo.far_copies); in raid10_status()
1935 if (conf->geo.far_set_size != conf->geo.raid_disks) in raid10_status()
1936 seq_printf(seq, " %d devices per set", conf->geo.far_set_size); in raid10_status()
1938 seq_printf(seq, " [%d/%d] [", conf->geo.raid_disks, in raid10_status()
1939 conf->geo.raid_disks - mddev->degraded); in raid10_status()
1941 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_status()
1942 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in raid10_status()
1954 static int _enough(struct r10conf *conf, int previous, int ignore) in _enough() argument
1960 disks = conf->prev.raid_disks; in _enough()
1961 ncopies = conf->prev.near_copies; in _enough()
1963 disks = conf->geo.raid_disks; in _enough()
1964 ncopies = conf->geo.near_copies; in _enough()
1969 int n = conf->copies; in _enough()
1975 (rdev = rcu_dereference(conf->mirrors[this].rdev)) && in _enough()
1990 static int enough(struct r10conf *conf, int ignore) in enough() argument
1997 return _enough(conf, 0, ignore) && in enough()
1998 _enough(conf, 1, ignore); in enough()
2018 struct r10conf *conf = mddev->private; in raid10_error() local
2021 spin_lock_irqsave(&conf->device_lock, flags); in raid10_error()
2023 if (test_bit(In_sync, &rdev->flags) && !enough(conf, rdev->raid_disk)) { in raid10_error()
2027 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_error()
2039 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_error()
2043 mdname(mddev), conf->geo.raid_disks - mddev->degraded); in raid10_error()
2046 static void print_conf(struct r10conf *conf) in print_conf() argument
2051 pr_debug("RAID10 conf printout:\n"); in print_conf()
2052 if (!conf) { in print_conf()
2053 pr_debug("(!conf)\n"); in print_conf()
2056 pr_debug(" --- wd:%d rd:%d\n", conf->geo.raid_disks - conf->mddev->degraded, in print_conf()
2057 conf->geo.raid_disks); in print_conf()
2061 for (i = 0; i < conf->geo.raid_disks; i++) { in print_conf()
2062 rdev = conf->mirrors[i].rdev; in print_conf()
2071 static void close_sync(struct r10conf *conf) in close_sync() argument
2073 wait_barrier(conf, false); in close_sync()
2074 allow_barrier(conf); in close_sync()
2076 mempool_exit(&conf->r10buf_pool); in close_sync()
2082 struct r10conf *conf = mddev->private; in raid10_spare_active() local
2091 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_spare_active()
2092 tmp = conf->mirrors + i; in raid10_spare_active()
2119 spin_lock_irqsave(&conf->device_lock, flags); in raid10_spare_active()
2121 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_spare_active()
2123 print_conf(conf); in raid10_spare_active()
2129 struct r10conf *conf = mddev->private; in raid10_add_disk() local
2133 int last = conf->geo.raid_disks - 1; in raid10_add_disk()
2141 if (rdev->saved_raid_disk < 0 && !_enough(conf, 1, -1)) in raid10_add_disk()
2151 rdev->saved_raid_disk < conf->geo.raid_disks && in raid10_add_disk()
2152 conf->mirrors[rdev->saved_raid_disk].rdev == NULL) in raid10_add_disk()
2157 p = &conf->mirrors[mirror]; in raid10_add_disk()
2176 conf->fullsync = 1; in raid10_add_disk()
2182 p = &conf->mirrors[repl_slot]; in raid10_add_disk()
2190 conf->fullsync = 1; in raid10_add_disk()
2194 print_conf(conf); in raid10_add_disk()
2200 struct r10conf *conf = mddev->private; in raid10_remove_disk() local
2206 print_conf(conf); in raid10_remove_disk()
2209 p = conf->mirrors + number; in raid10_remove_disk()
2228 number < conf->geo.raid_disks && in raid10_remove_disk()
2229 enough(conf, -1)) { in raid10_remove_disk()
2258 print_conf(conf); in raid10_remove_disk()
2264 struct r10conf *conf = r10_bio->mddev->private; in __end_sync_read() local
2273 &conf->mirrors[d].rdev->corrected_errors); in __end_sync_read()
2278 rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev); in __end_sync_read()
2291 struct r10conf *conf = r10_bio->mddev->private; in end_sync_read() local
2292 int d = find_bio_disk(conf, r10_bio, bio, NULL, NULL); in end_sync_read()
2336 struct r10conf *conf = mddev->private; in end_sync_write() local
2344 d = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in end_sync_write()
2346 rdev = conf->mirrors[d].replacement; in end_sync_write()
2348 rdev = conf->mirrors[d].rdev; in end_sync_write()
2389 struct r10conf *conf = mddev->private; in sync_request_write() local
2398 for (i=0; i<conf->copies; i++) in sync_request_write()
2402 if (i == conf->copies) in sync_request_write()
2413 for (i=0 ; i < conf->copies ; i++) { in sync_request_write()
2427 rdev = conf->mirrors[d].rdev; in sync_request_write()
2461 bio_reset(tbio, conf->mirrors[d].rdev->bdev, REQ_OP_WRITE); in sync_request_write()
2472 atomic_inc(&conf->mirrors[d].rdev->nr_pending); in sync_request_write()
2474 md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(tbio)); in sync_request_write()
2476 if (test_bit(FailFast, &conf->mirrors[d].rdev->flags)) in sync_request_write()
2478 tbio->bi_iter.bi_sector += conf->mirrors[d].rdev->data_offset; in sync_request_write()
2485 for (i = 0; i < conf->copies; i++) { in sync_request_write()
2496 md_sync_acct(conf->mirrors[d].replacement->bdev, in sync_request_write()
2528 struct r10conf *conf = mddev->private; in fix_recovery_read_error() local
2546 rdev = conf->mirrors[dr].rdev; in fix_recovery_read_error()
2554 rdev = conf->mirrors[dw].rdev; in fix_recovery_read_error()
2576 if (rdev != conf->mirrors[dw].rdev) { in fix_recovery_read_error()
2578 struct md_rdev *rdev2 = conf->mirrors[dw].rdev; in fix_recovery_read_error()
2586 conf->mirrors[dw].recovery_disabled in fix_recovery_read_error()
2603 struct r10conf *conf = mddev->private; in recovery_request_write() local
2630 atomic_inc(&conf->mirrors[d].rdev->nr_pending); in recovery_request_write()
2631 md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(wbio)); in recovery_request_write()
2635 atomic_inc(&conf->mirrors[d].replacement->nr_pending); in recovery_request_write()
2636 md_sync_acct(conf->mirrors[d].replacement->bdev, in recovery_request_write()
2710 static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10bio *r10_bio) in fix_read_error() argument
2721 rdev = conf->mirrors[d].rdev; in fix_read_error()
2756 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2768 conf->tmppage, in fix_read_error()
2776 if (sl == conf->copies) in fix_read_error()
2787 rdev = conf->mirrors[dn].rdev; in fix_read_error()
2806 sl = conf->copies; in fix_read_error()
2809 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2820 s, conf->tmppage, REQ_OP_WRITE) in fix_read_error()
2840 sl = conf->copies; in fix_read_error()
2843 rdev = rcu_dereference(conf->mirrors[d].rdev); in fix_read_error()
2854 s, conf->tmppage, REQ_OP_READ)) { in fix_read_error()
2891 struct r10conf *conf = mddev->private; in narrow_write_error() local
2892 struct md_rdev *rdev = conf->mirrors[r10_bio->devs[i].devnum].rdev; in narrow_write_error()
2952 struct r10conf *conf = mddev->private; in handle_read_error() local
2970 freeze_array(conf, 1); in handle_read_error()
2971 fix_read_error(conf, mddev, r10_bio); in handle_read_error()
2972 unfreeze_array(conf); in handle_read_error()
2983 allow_barrier(conf); in handle_read_error()
2986 static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio) in handle_write_completed() argument
2999 for (m = 0; m < conf->copies; m++) { in handle_write_completed()
3001 rdev = conf->mirrors[dev].rdev; in handle_write_completed()
3015 md_error(conf->mddev, rdev); in handle_write_completed()
3017 rdev = conf->mirrors[dev].replacement; in handle_write_completed()
3032 md_error(conf->mddev, rdev); in handle_write_completed()
3038 for (m = 0; m < conf->copies; m++) { in handle_write_completed()
3041 rdev = conf->mirrors[dev].rdev; in handle_write_completed()
3047 rdev_dec_pending(rdev, conf->mddev); in handle_write_completed()
3051 md_error(conf->mddev, rdev); in handle_write_completed()
3052 rdev_dec_pending(rdev, conf->mddev); in handle_write_completed()
3055 rdev = conf->mirrors[dev].replacement; in handle_write_completed()
3061 rdev_dec_pending(rdev, conf->mddev); in handle_write_completed()
3065 spin_lock_irq(&conf->device_lock); in handle_write_completed()
3066 list_add(&r10_bio->retry_list, &conf->bio_end_io_list); in handle_write_completed()
3067 conf->nr_queued++; in handle_write_completed()
3068 spin_unlock_irq(&conf->device_lock); in handle_write_completed()
3073 wake_up(&conf->wait_barrier); in handle_write_completed()
3074 md_wakeup_thread(conf->mddev->thread); in handle_write_completed()
3089 struct r10conf *conf = mddev->private; in raid10d() local
3090 struct list_head *head = &conf->retry_list; in raid10d()
3095 if (!list_empty_careful(&conf->bio_end_io_list) && in raid10d()
3098 spin_lock_irqsave(&conf->device_lock, flags); in raid10d()
3100 while (!list_empty(&conf->bio_end_io_list)) { in raid10d()
3101 list_move(conf->bio_end_io_list.prev, &tmp); in raid10d()
3102 conf->nr_queued--; in raid10d()
3105 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10d()
3121 flush_pending_writes(conf); in raid10d()
3123 spin_lock_irqsave(&conf->device_lock, flags); in raid10d()
3125 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10d()
3130 conf->nr_queued--; in raid10d()
3131 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10d()
3134 conf = mddev->private; in raid10d()
3137 handle_write_completed(conf, r10_bio); in raid10d()
3156 static int init_resync(struct r10conf *conf) in init_resync() argument
3161 BUG_ON(mempool_initialized(&conf->r10buf_pool)); in init_resync()
3162 conf->have_replacement = 0; in init_resync()
3163 for (i = 0; i < conf->geo.raid_disks; i++) in init_resync()
3164 if (conf->mirrors[i].replacement) in init_resync()
3165 conf->have_replacement = 1; in init_resync()
3166 ret = mempool_init(&conf->r10buf_pool, buffs, in init_resync()
3167 r10buf_pool_alloc, r10buf_pool_free, conf); in init_resync()
3170 conf->next_resync = 0; in init_resync()
3174 static struct r10bio *raid10_alloc_init_r10buf(struct r10conf *conf) in raid10_alloc_init_r10buf() argument
3176 struct r10bio *r10bio = mempool_alloc(&conf->r10buf_pool, GFP_NOIO); in raid10_alloc_init_r10buf()
3182 if (test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery) || in raid10_alloc_init_r10buf()
3183 test_bit(MD_RECOVERY_RESHAPE, &conf->mddev->recovery)) in raid10_alloc_init_r10buf()
3184 nalloc = conf->copies; /* resync */ in raid10_alloc_init_r10buf()
3207 static void raid10_set_cluster_sync_high(struct r10conf *conf) in raid10_set_cluster_sync_high() argument
3224 chunks = conf->geo.raid_disks / conf->geo.near_copies; in raid10_set_cluster_sync_high()
3225 if (conf->geo.raid_disks % conf->geo.near_copies == 0) in raid10_set_cluster_sync_high()
3229 window_size = (chunks + extra_chunk) * conf->mddev->chunk_sectors; in raid10_set_cluster_sync_high()
3237 conf->cluster_sync_high = conf->cluster_sync_low + window_size; in raid10_set_cluster_sync_high()
3275 struct r10conf *conf = mddev->private; in raid10_sync_request() local
3284 sector_t chunk_mask = conf->geo.chunk_mask; in raid10_sync_request()
3298 conf->fullsync == 0) { in raid10_sync_request()
3303 if (!mempool_initialized(&conf->r10buf_pool)) in raid10_sync_request()
3304 if (init_resync(conf)) in raid10_sync_request()
3313 conf->cluster_sync_low = 0; in raid10_sync_request()
3314 conf->cluster_sync_high = 0; in raid10_sync_request()
3326 end_reshape(conf); in raid10_sync_request()
3327 close_sync(conf); in raid10_sync_request()
3335 else for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3337 raid10_find_virt(conf, mddev->curr_resync, i); in raid10_sync_request()
3343 if ((!mddev->bitmap || conf->fullsync) in raid10_sync_request()
3344 && conf->have_replacement in raid10_sync_request()
3350 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3352 rcu_dereference(conf->mirrors[i].replacement); in raid10_sync_request()
3358 conf->fullsync = 0; in raid10_sync_request()
3361 close_sync(conf); in raid10_sync_request()
3369 if (chunks_skipped >= conf->geo.raid_disks) { in raid10_sync_request()
3378 conf->mirrors[error_disk].recovery_disabled = in raid10_sync_request()
3396 if (conf->geo.near_copies < conf->geo.raid_disks && in raid10_sync_request()
3404 if (conf->nr_waiting) in raid10_sync_request()
3428 for (i = 0 ; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3434 struct raid10_info *mirror = &conf->mirrors[i]; in raid10_sync_request()
3455 sect = raid10_find_virt(conf, sector_nr, i); in raid10_sync_request()
3473 !conf->fullsync) { in raid10_sync_request()
3487 r10_bio = raid10_alloc_init_r10buf(conf); in raid10_sync_request()
3489 raise_barrier(conf, rb2 != NULL); in raid10_sync_request()
3499 raid10_find_phys(conf, r10_bio); in raid10_sync_request()
3505 for (j = 0; j < conf->geo.raid_disks; j++) { in raid10_sync_request()
3507 conf->mirrors[j].rdev); in raid10_sync_request()
3518 for (j=0; j<conf->copies;j++) { in raid10_sync_request()
3523 rcu_dereference(conf->mirrors[d].rdev); in raid10_sync_request()
3559 for (k=0; k<conf->copies; k++) in raid10_sync_request()
3562 BUG_ON(k == conf->copies); in raid10_sync_request()
3603 if (j == conf->copies) { in raid10_sync_request()
3611 for (k = 0; k < conf->copies; k++) in raid10_sync_request()
3658 for (; j < conf->copies; j++) { in raid10_sync_request()
3660 if (conf->mirrors[d].rdev && in raid10_sync_request()
3662 &conf->mirrors[d].rdev->flags)) in raid10_sync_request()
3692 (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high)); in raid10_sync_request()
3696 !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, in raid10_sync_request()
3704 r10_bio = raid10_alloc_init_r10buf(conf); in raid10_sync_request()
3709 raise_barrier(conf, 0); in raid10_sync_request()
3710 conf->next_resync = sector_nr; in raid10_sync_request()
3715 raid10_find_phys(conf, r10_bio); in raid10_sync_request()
3718 for (i = 0; i < conf->copies; i++) { in raid10_sync_request()
3730 rdev = rcu_dereference(conf->mirrors[d].rdev); in raid10_sync_request()
3760 rdev = rcu_dereference(conf->mirrors[d].replacement); in raid10_sync_request()
3785 for (i=0; i<conf->copies; i++) { in raid10_sync_request()
3788 rdev_dec_pending(conf->mirrors[d].rdev, in raid10_sync_request()
3793 conf->mirrors[d].replacement, in raid10_sync_request()
3829 if (conf->cluster_sync_high < sector_nr + nr_sectors) { in raid10_sync_request()
3830 conf->cluster_sync_low = mddev->curr_resync_completed; in raid10_sync_request()
3831 raid10_set_cluster_sync_high(conf); in raid10_sync_request()
3834 conf->cluster_sync_low, in raid10_sync_request()
3835 conf->cluster_sync_high); in raid10_sync_request()
3842 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3848 sect_va1 = raid10_find_virt(conf, sector_nr, i); in raid10_sync_request()
3850 if (conf->cluster_sync_high < sect_va1 + nr_sectors) { in raid10_sync_request()
3856 sect_va2 = raid10_find_virt(conf, in raid10_sync_request()
3859 if (conf->cluster_sync_low == 0 || in raid10_sync_request()
3860 conf->cluster_sync_low > sect_va2) in raid10_sync_request()
3861 conf->cluster_sync_low = sect_va2; in raid10_sync_request()
3865 raid10_set_cluster_sync_high(conf); in raid10_sync_request()
3867 conf->cluster_sync_low, in raid10_sync_request()
3868 conf->cluster_sync_high); in raid10_sync_request()
3912 struct r10conf *conf = mddev->private; in raid10_size() local
3915 raid_disks = min(conf->geo.raid_disks, in raid10_size()
3916 conf->prev.raid_disks); in raid10_size()
3918 sectors = conf->dev_sectors; in raid10_size()
3920 size = sectors >> conf->geo.chunk_shift; in raid10_size()
3921 sector_div(size, conf->geo.far_copies); in raid10_size()
3923 sector_div(size, conf->geo.near_copies); in raid10_size()
3925 return size << conf->geo.chunk_shift; in raid10_size()
3928 static void calc_sectors(struct r10conf *conf, sector_t size) in calc_sectors() argument
3931 * actually be used, and set conf->dev_sectors and in calc_sectors()
3932 * conf->stride in calc_sectors()
3935 size = size >> conf->geo.chunk_shift; in calc_sectors()
3936 sector_div(size, conf->geo.far_copies); in calc_sectors()
3937 size = size * conf->geo.raid_disks; in calc_sectors()
3938 sector_div(size, conf->geo.near_copies); in calc_sectors()
3941 size = size * conf->copies; in calc_sectors()
3946 size = DIV_ROUND_UP_SECTOR_T(size, conf->geo.raid_disks); in calc_sectors()
3948 conf->dev_sectors = size << conf->geo.chunk_shift; in calc_sectors()
3950 if (conf->geo.far_offset) in calc_sectors()
3951 conf->geo.stride = 1 << conf->geo.chunk_shift; in calc_sectors()
3953 sector_div(size, conf->geo.far_copies); in calc_sectors()
3954 conf->geo.stride = size << conf->geo.chunk_shift; in calc_sectors()
4015 static void raid10_free_conf(struct r10conf *conf) in raid10_free_conf() argument
4017 if (!conf) in raid10_free_conf()
4020 mempool_exit(&conf->r10bio_pool); in raid10_free_conf()
4021 kfree(conf->mirrors); in raid10_free_conf()
4022 kfree(conf->mirrors_old); in raid10_free_conf()
4023 kfree(conf->mirrors_new); in raid10_free_conf()
4024 safe_put_page(conf->tmppage); in raid10_free_conf()
4025 bioset_exit(&conf->bio_split); in raid10_free_conf()
4026 kfree(conf); in raid10_free_conf()
4031 struct r10conf *conf = NULL; in setup_conf() local
4051 conf = kzalloc(sizeof(struct r10conf), GFP_KERNEL); in setup_conf()
4052 if (!conf) in setup_conf()
4056 conf->mirrors = kcalloc(mddev->raid_disks + max(0, -mddev->delta_disks), in setup_conf()
4059 if (!conf->mirrors) in setup_conf()
4062 conf->tmppage = alloc_page(GFP_KERNEL); in setup_conf()
4063 if (!conf->tmppage) in setup_conf()
4066 conf->geo = geo; in setup_conf()
4067 conf->copies = copies; in setup_conf()
4068 err = mempool_init(&conf->r10bio_pool, NR_RAID_BIOS, r10bio_pool_alloc, in setup_conf()
4069 rbio_pool_free, conf); in setup_conf()
4073 err = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0); in setup_conf()
4077 calc_sectors(conf, mddev->dev_sectors); in setup_conf()
4079 conf->prev = conf->geo; in setup_conf()
4080 conf->reshape_progress = MaxSector; in setup_conf()
4082 if (setup_geo(&conf->prev, mddev, geo_old) != conf->copies) { in setup_conf()
4086 conf->reshape_progress = mddev->reshape_position; in setup_conf()
4087 if (conf->prev.far_offset) in setup_conf()
4088 conf->prev.stride = 1 << conf->prev.chunk_shift; in setup_conf()
4091 conf->prev.stride = conf->dev_sectors; in setup_conf()
4093 conf->reshape_safe = conf->reshape_progress; in setup_conf()
4094 spin_lock_init(&conf->device_lock); in setup_conf()
4095 INIT_LIST_HEAD(&conf->retry_list); in setup_conf()
4096 INIT_LIST_HEAD(&conf->bio_end_io_list); in setup_conf()
4098 seqlock_init(&conf->resync_lock); in setup_conf()
4099 init_waitqueue_head(&conf->wait_barrier); in setup_conf()
4100 atomic_set(&conf->nr_pending, 0); in setup_conf()
4103 rcu_assign_pointer(conf->thread, in setup_conf()
4105 if (!conf->thread) in setup_conf()
4108 conf->mddev = mddev; in setup_conf()
4109 return conf; in setup_conf()
4112 raid10_free_conf(conf); in setup_conf()
4116 static void raid10_set_io_opt(struct r10conf *conf) in raid10_set_io_opt() argument
4118 int raid_disks = conf->geo.raid_disks; in raid10_set_io_opt()
4120 if (!(conf->geo.raid_disks % conf->geo.near_copies)) in raid10_set_io_opt()
4121 raid_disks /= conf->geo.near_copies; in raid10_set_io_opt()
4122 blk_queue_io_opt(conf->mddev->queue, (conf->mddev->chunk_sectors << 9) * in raid10_set_io_opt()
4128 struct r10conf *conf; in raid10_run() local
4140 conf = setup_conf(mddev); in raid10_run()
4141 if (IS_ERR(conf)) in raid10_run()
4142 return PTR_ERR(conf); in raid10_run()
4143 mddev->private = conf; in raid10_run()
4145 conf = mddev->private; in raid10_run()
4146 if (!conf) in raid10_run()
4149 rcu_assign_pointer(mddev->thread, conf->thread); in raid10_run()
4150 rcu_assign_pointer(conf->thread, NULL); in raid10_run()
4152 if (mddev_is_clustered(conf->mddev)) { in raid10_run()
4167 raid10_set_io_opt(conf); in raid10_run()
4176 if (disk_idx >= conf->geo.raid_disks && in raid10_run()
4177 disk_idx >= conf->prev.raid_disks) in raid10_run()
4179 disk = conf->mirrors + disk_idx; in raid10_run()
4207 if (!enough(conf, -1)) { in raid10_run()
4213 if (conf->reshape_progress != MaxSector) { in raid10_run()
4215 if (conf->geo.far_copies != 1 && in raid10_run()
4216 conf->geo.far_offset == 0) in raid10_run()
4218 if (conf->prev.far_copies != 1 && in raid10_run()
4219 conf->prev.far_offset == 0) in raid10_run()
4225 i < conf->geo.raid_disks in raid10_run()
4226 || i < conf->prev.raid_disks; in raid10_run()
4229 disk = conf->mirrors + i; in raid10_run()
4244 conf->fullsync = 1; in raid10_run()
4250 conf->fullsync = 1; in raid10_run()
4260 mdname(mddev), conf->geo.raid_disks - mddev->degraded, in raid10_run()
4261 conf->geo.raid_disks); in raid10_run()
4265 mddev->dev_sectors = conf->dev_sectors; in raid10_run()
4274 if (conf->reshape_progress != MaxSector) { in raid10_run()
4277 before_length = ((1 << conf->prev.chunk_shift) * in raid10_run()
4278 conf->prev.far_copies); in raid10_run()
4279 after_length = ((1 << conf->geo.chunk_shift) * in raid10_run()
4280 conf->geo.far_copies); in raid10_run()
4287 conf->offset_diff = min_offset_diff; in raid10_run()
4303 raid10_free_conf(conf); in raid10_run()
4316 struct r10conf *conf = mddev->private; in raid10_quiesce() local
4319 raise_barrier(conf, 0); in raid10_quiesce()
4321 lower_barrier(conf); in raid10_quiesce()
4338 struct r10conf *conf = mddev->private; in raid10_resize() local
4344 if (conf->geo.far_copies > 1 && !conf->geo.far_offset) in raid10_resize()
4363 calc_sectors(conf, sectors); in raid10_resize()
4364 mddev->dev_sectors = conf->dev_sectors; in raid10_resize()
4372 struct r10conf *conf; in raid10_takeover_raid0() local
4392 conf = setup_conf(mddev); in raid10_takeover_raid0()
4393 if (!IS_ERR(conf)) { in raid10_takeover_raid0()
4401 return conf; in raid10_takeover_raid0()
4442 struct r10conf *conf = mddev->private; in raid10_check_reshape() local
4445 if (conf->geo.far_copies != 1 && !conf->geo.far_offset) in raid10_check_reshape()
4448 if (setup_geo(&geo, mddev, geo_start) != conf->copies) in raid10_check_reshape()
4459 if (!enough(conf, -1)) in raid10_check_reshape()
4462 kfree(conf->mirrors_new); in raid10_check_reshape()
4463 conf->mirrors_new = NULL; in raid10_check_reshape()
4466 conf->mirrors_new = in raid10_check_reshape()
4470 if (!conf->mirrors_new) in raid10_check_reshape()
4489 static int calc_degraded(struct r10conf *conf) in calc_degraded() argument
4497 for (i = 0; i < conf->prev.raid_disks; i++) { in calc_degraded()
4498 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in calc_degraded()
4509 if (conf->geo.raid_disks == conf->prev.raid_disks) in calc_degraded()
4513 for (i = 0; i < conf->geo.raid_disks; i++) { in calc_degraded()
4514 struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev); in calc_degraded()
4523 if (conf->geo.raid_disks <= conf->prev.raid_disks) in calc_degraded()
4549 struct r10conf *conf = mddev->private; in raid10_start_reshape() local
4557 if (setup_geo(&new, mddev, geo_start) != conf->copies) in raid10_start_reshape()
4560 before_length = ((1 << conf->prev.chunk_shift) * in raid10_start_reshape()
4561 conf->prev.far_copies); in raid10_start_reshape()
4562 after_length = ((1 << conf->geo.chunk_shift) * in raid10_start_reshape()
4563 conf->geo.far_copies); in raid10_start_reshape()
4588 conf->offset_diff = min_offset_diff; in raid10_start_reshape()
4589 spin_lock_irq(&conf->device_lock); in raid10_start_reshape()
4590 if (conf->mirrors_new) { in raid10_start_reshape()
4591 memcpy(conf->mirrors_new, conf->mirrors, in raid10_start_reshape()
4592 sizeof(struct raid10_info)*conf->prev.raid_disks); in raid10_start_reshape()
4594 kfree(conf->mirrors_old); in raid10_start_reshape()
4595 conf->mirrors_old = conf->mirrors; in raid10_start_reshape()
4596 conf->mirrors = conf->mirrors_new; in raid10_start_reshape()
4597 conf->mirrors_new = NULL; in raid10_start_reshape()
4599 setup_geo(&conf->geo, mddev, geo_start); in raid10_start_reshape()
4604 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4610 conf->reshape_progress = size; in raid10_start_reshape()
4612 conf->reshape_progress = 0; in raid10_start_reshape()
4613 conf->reshape_safe = conf->reshape_progress; in raid10_start_reshape()
4614 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4621 newsize = raid10_size(mddev, 0, conf->geo.raid_disks); in raid10_start_reshape()
4663 conf->prev.raid_disks) in raid10_start_reshape()
4671 } else if (rdev->raid_disk >= conf->prev.raid_disks in raid10_start_reshape()
4681 spin_lock_irq(&conf->device_lock); in raid10_start_reshape()
4682 mddev->degraded = calc_degraded(conf); in raid10_start_reshape()
4683 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4684 mddev->raid_disks = conf->geo.raid_disks; in raid10_start_reshape()
4685 mddev->reshape_position = conf->reshape_progress; in raid10_start_reshape()
4700 conf->reshape_checkpoint = jiffies; in raid10_start_reshape()
4707 spin_lock_irq(&conf->device_lock); in raid10_start_reshape()
4708 conf->geo = conf->prev; in raid10_start_reshape()
4709 mddev->raid_disks = conf->geo.raid_disks; in raid10_start_reshape()
4713 conf->reshape_progress = MaxSector; in raid10_start_reshape()
4714 conf->reshape_safe = MaxSector; in raid10_start_reshape()
4716 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4781 * (conf->offset_diff - always positive) allows a bit of slack, in reshape_request()
4791 struct r10conf *conf = mddev->private; in reshape_request() local
4807 conf->reshape_progress < raid10_size(mddev, 0, 0)) { in reshape_request()
4809 - conf->reshape_progress); in reshape_request()
4811 conf->reshape_progress > 0) in reshape_request()
4812 sector_nr = conf->reshape_progress; in reshape_request()
4829 next = first_dev_address(conf->reshape_progress - 1, in reshape_request()
4830 &conf->geo); in reshape_request()
4835 safe = last_dev_address(conf->reshape_safe - 1, in reshape_request()
4836 &conf->prev); in reshape_request()
4838 if (next + conf->offset_diff < safe) in reshape_request()
4841 last = conf->reshape_progress - 1; in reshape_request()
4842 sector_nr = last & ~(sector_t)(conf->geo.chunk_mask in reshape_request()
4843 & conf->prev.chunk_mask); in reshape_request()
4850 next = last_dev_address(conf->reshape_progress, &conf->geo); in reshape_request()
4855 safe = first_dev_address(conf->reshape_safe, &conf->prev); in reshape_request()
4860 if (next > safe + conf->offset_diff) in reshape_request()
4863 sector_nr = conf->reshape_progress; in reshape_request()
4864 last = sector_nr | (conf->geo.chunk_mask in reshape_request()
4865 & conf->prev.chunk_mask); in reshape_request()
4872 time_after(jiffies, conf->reshape_checkpoint + 10*HZ)) { in reshape_request()
4874 wait_barrier(conf, false); in reshape_request()
4875 mddev->reshape_position = conf->reshape_progress; in reshape_request()
4878 - conf->reshape_progress; in reshape_request()
4880 mddev->curr_resync_completed = conf->reshape_progress; in reshape_request()
4881 conf->reshape_checkpoint = jiffies; in reshape_request()
4887 allow_barrier(conf); in reshape_request()
4890 conf->reshape_safe = mddev->reshape_position; in reshape_request()
4891 allow_barrier(conf); in reshape_request()
4894 raise_barrier(conf, 0); in reshape_request()
4897 r10_bio = raid10_alloc_init_r10buf(conf); in reshape_request()
4899 raise_barrier(conf, 1); in reshape_request()
4905 rdev = read_balance(conf, r10_bio, &max_sectors); in reshape_request()
4913 mempool_free(r10_bio, &conf->r10buf_pool); in reshape_request()
4931 if (mddev_is_clustered(mddev) && conf->cluster_sync_high <= sector_nr) { in reshape_request()
4935 conf->cluster_sync_low = sector_nr; in reshape_request()
4936 conf->cluster_sync_high = sector_nr + CLUSTER_RESYNC_WINDOW_SECTORS; in reshape_request()
4945 if (sb_reshape_pos < conf->cluster_sync_low) in reshape_request()
4946 conf->cluster_sync_low = sb_reshape_pos; in reshape_request()
4949 md_cluster_ops->resync_info_update(mddev, conf->cluster_sync_low, in reshape_request()
4950 conf->cluster_sync_high); in reshape_request()
4954 __raid10_find_phys(&conf->geo, r10_bio); in reshape_request()
4960 for (s = 0; s < conf->copies*2; s++) { in reshape_request()
4965 rdev2 = rcu_dereference(conf->mirrors[d].replacement); in reshape_request()
4968 rdev2 = rcu_dereference(conf->mirrors[d].rdev); in reshape_request()
5014 lower_barrier(conf); in reshape_request()
5020 conf->reshape_progress -= sectors_done; in reshape_request()
5022 conf->reshape_progress += sectors_done; in reshape_request()
5037 struct r10conf *conf = mddev->private; in reshape_request_write() local
5051 for (s = 0; s < conf->copies*2; s++) { in reshape_request_write()
5057 rdev = rcu_dereference(conf->mirrors[d].replacement); in reshape_request_write()
5060 rdev = rcu_dereference(conf->mirrors[d].rdev); in reshape_request_write()
5077 static void end_reshape(struct r10conf *conf) in end_reshape() argument
5079 if (test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) in end_reshape()
5082 spin_lock_irq(&conf->device_lock); in end_reshape()
5083 conf->prev = conf->geo; in end_reshape()
5084 md_finish_reshape(conf->mddev); in end_reshape()
5086 conf->reshape_progress = MaxSector; in end_reshape()
5087 conf->reshape_safe = MaxSector; in end_reshape()
5088 spin_unlock_irq(&conf->device_lock); in end_reshape()
5090 if (conf->mddev->queue) in end_reshape()
5091 raid10_set_io_opt(conf); in end_reshape()
5092 conf->fullsync = 0; in end_reshape()
5097 struct r10conf *conf = mddev->private; in raid10_update_reshape_pos() local
5103 conf->reshape_progress = mddev->reshape_position; in raid10_update_reshape_pos()
5113 struct r10conf *conf = mddev->private; in handle_reshape_read_error() local
5119 r10b = kmalloc(struct_size(r10b, devs, conf->copies), GFP_NOIO); in handle_reshape_read_error()
5129 __raid10_find_phys(&conf->prev, r10b); in handle_reshape_read_error()
5142 struct md_rdev *rdev = rcu_dereference(conf->mirrors[d].rdev); in handle_reshape_read_error()
5163 if (slot >= conf->copies) in handle_reshape_read_error()
5187 struct r10conf *conf = mddev->private; in end_reshape_write() local
5193 d = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in end_reshape_write()
5195 rdev = conf->mirrors[d].replacement; in end_reshape_write()
5198 rdev = conf->mirrors[d].rdev; in end_reshape_write()
5221 struct r10conf *conf = mddev->private; in raid10_finish_reshape() local
5235 for (d = conf->geo.raid_disks ; in raid10_finish_reshape()
5236 d < conf->geo.raid_disks - mddev->delta_disks; in raid10_finish_reshape()
5238 struct md_rdev *rdev = rcu_dereference(conf->mirrors[d].rdev); in raid10_finish_reshape()
5241 rdev = rcu_dereference(conf->mirrors[d].replacement); in raid10_finish_reshape()
5248 mddev->chunk_sectors = 1 << conf->geo.chunk_shift; in raid10_finish_reshape()