Lines Matching refs:conf
70 static void allow_barrier(struct r10conf *conf);
71 static void lower_barrier(struct r10conf *conf);
72 static int _enough(struct r10conf *conf, int previous, int ignore);
73 static int enough(struct r10conf *conf, int ignore);
78 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()
455 struct r10conf *conf = r10_bio->mddev->private; in raid10_end_write_request() local
463 dev = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in raid10_end_write_request()
466 rdev = conf->mirrors[dev].replacement; in raid10_end_write_request()
470 rdev = conf->mirrors[dev].rdev; in raid10_end_write_request()
548 rdev_dec_pending(rdev, conf->mddev); in raid10_end_write_request()
641 static void raid10_find_phys(struct r10conf *conf, struct r10bio *r10bio) in raid10_find_phys() argument
643 struct geom *geo = &conf->geo; in raid10_find_phys()
645 if (conf->reshape_progress != MaxSector && in raid10_find_phys()
646 ((r10bio->sector >= conf->reshape_progress) != in raid10_find_phys()
647 conf->mddev->reshape_backwards)) { in raid10_find_phys()
649 geo = &conf->prev; in raid10_find_phys()
656 static sector_t raid10_find_virt(struct r10conf *conf, sector_t sector, int dev) in raid10_find_virt() argument
662 struct geom *geo = &conf->geo; in raid10_find_virt()
720 static struct md_rdev *read_balance(struct r10conf *conf, in read_balance() argument
734 struct geom *geo = &conf->geo; in read_balance()
736 raid10_find_phys(conf, r10_bio); in read_balance()
746 if (raid1_should_read_first(conf->mddev, this_sector, sectors)) in read_balance()
749 for (slot = 0; slot < conf->copies ; slot++) { in read_balance()
759 rdev = conf->mirrors[disk].replacement; in read_balance()
763 rdev = conf->mirrors[disk].rdev; in read_balance()
830 conf->mirrors[disk].head_position); in read_balance()
838 if (slot >= conf->copies) { in read_balance()
858 static void flush_pending_writes(struct r10conf *conf) in flush_pending_writes() argument
863 spin_lock_irq(&conf->device_lock); in flush_pending_writes()
865 if (conf->pending_bio_list.head) { in flush_pending_writes()
869 bio = bio_list_get(&conf->pending_bio_list); in flush_pending_writes()
870 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
884 raid1_prepare_flush_writes(conf->mddev); in flush_pending_writes()
885 wake_up(&conf->wait_barrier); in flush_pending_writes()
896 spin_unlock_irq(&conf->device_lock); in flush_pending_writes()
921 static void raise_barrier(struct r10conf *conf, int force) in raise_barrier() argument
923 write_seqlock_irq(&conf->resync_lock); in raise_barrier()
925 if (WARN_ON_ONCE(force && !conf->barrier)) in raise_barrier()
929 wait_event_barrier(conf, force || !conf->nr_waiting); in raise_barrier()
932 WRITE_ONCE(conf->barrier, conf->barrier + 1); in raise_barrier()
935 wait_event_barrier(conf, !atomic_read(&conf->nr_pending) && in raise_barrier()
936 conf->barrier < RESYNC_DEPTH); in raise_barrier()
938 write_sequnlock_irq(&conf->resync_lock); in raise_barrier()
941 static void lower_barrier(struct r10conf *conf) in lower_barrier() argument
945 write_seqlock_irqsave(&conf->resync_lock, flags); in lower_barrier()
946 WRITE_ONCE(conf->barrier, conf->barrier - 1); in lower_barrier()
947 write_sequnlock_irqrestore(&conf->resync_lock, flags); in lower_barrier()
948 wake_up(&conf->wait_barrier); in lower_barrier()
951 static bool stop_waiting_barrier(struct r10conf *conf) in stop_waiting_barrier() argument
957 if (!conf->barrier) in stop_waiting_barrier()
966 if (atomic_read(&conf->nr_pending) && bio_list && in stop_waiting_barrier()
971 thread = rcu_dereference_protected(conf->mddev->thread, true); in stop_waiting_barrier()
978 WARN_ON_ONCE(atomic_read(&conf->nr_pending) == 0); in stop_waiting_barrier()
985 static bool wait_barrier_nolock(struct r10conf *conf) in wait_barrier_nolock() argument
987 unsigned int seq = read_seqbegin(&conf->resync_lock); in wait_barrier_nolock()
989 if (READ_ONCE(conf->barrier)) in wait_barrier_nolock()
992 atomic_inc(&conf->nr_pending); in wait_barrier_nolock()
993 if (!read_seqretry(&conf->resync_lock, seq)) in wait_barrier_nolock()
996 if (atomic_dec_and_test(&conf->nr_pending)) in wait_barrier_nolock()
997 wake_up_barrier(conf); in wait_barrier_nolock()
1002 static bool wait_barrier(struct r10conf *conf, bool nowait) in wait_barrier() argument
1006 if (wait_barrier_nolock(conf)) in wait_barrier()
1009 write_seqlock_irq(&conf->resync_lock); in wait_barrier()
1010 if (conf->barrier) { in wait_barrier()
1015 conf->nr_waiting++; in wait_barrier()
1016 mddev_add_trace_msg(conf->mddev, "raid10 wait barrier"); in wait_barrier()
1017 wait_event_barrier(conf, stop_waiting_barrier(conf)); in wait_barrier()
1018 conf->nr_waiting--; in wait_barrier()
1020 if (!conf->nr_waiting) in wait_barrier()
1021 wake_up(&conf->wait_barrier); in wait_barrier()
1025 atomic_inc(&conf->nr_pending); in wait_barrier()
1026 write_sequnlock_irq(&conf->resync_lock); in wait_barrier()
1030 static void allow_barrier(struct r10conf *conf) in allow_barrier() argument
1032 if ((atomic_dec_and_test(&conf->nr_pending)) || in allow_barrier()
1033 (conf->array_freeze_pending)) in allow_barrier()
1034 wake_up_barrier(conf); in allow_barrier()
1037 static void freeze_array(struct r10conf *conf, int extra) in freeze_array() argument
1051 write_seqlock_irq(&conf->resync_lock); in freeze_array()
1052 conf->array_freeze_pending++; in freeze_array()
1053 WRITE_ONCE(conf->barrier, conf->barrier + 1); in freeze_array()
1054 conf->nr_waiting++; in freeze_array()
1055 wait_event_barrier_cmd(conf, atomic_read(&conf->nr_pending) == in freeze_array()
1056 conf->nr_queued + extra, flush_pending_writes(conf)); in freeze_array()
1057 conf->array_freeze_pending--; in freeze_array()
1058 write_sequnlock_irq(&conf->resync_lock); in freeze_array()
1061 static void unfreeze_array(struct r10conf *conf) in unfreeze_array() argument
1064 write_seqlock_irq(&conf->resync_lock); in unfreeze_array()
1065 WRITE_ONCE(conf->barrier, conf->barrier - 1); in unfreeze_array()
1066 conf->nr_waiting--; in unfreeze_array()
1067 wake_up(&conf->wait_barrier); in unfreeze_array()
1068 write_sequnlock_irq(&conf->resync_lock); in unfreeze_array()
1085 struct r10conf *conf = mddev->private; in raid10_unplug() local
1089 spin_lock_irq(&conf->device_lock); in raid10_unplug()
1090 bio_list_merge(&conf->pending_bio_list, &plug->pending); in raid10_unplug()
1091 spin_unlock_irq(&conf->device_lock); in raid10_unplug()
1092 wake_up_barrier(conf); in raid10_unplug()
1101 wake_up_barrier(conf); in raid10_unplug()
1119 static bool regular_request_wait(struct mddev *mddev, struct r10conf *conf, in regular_request_wait() argument
1123 if (!wait_barrier(conf, bio->bi_opf & REQ_NOWAIT)) { in regular_request_wait()
1128 bio->bi_iter.bi_sector < conf->reshape_progress && in regular_request_wait()
1129 bio->bi_iter.bi_sector + sectors > conf->reshape_progress) { in regular_request_wait()
1130 allow_barrier(conf); in regular_request_wait()
1135 mddev_add_trace_msg(conf->mddev, "raid10 wait reshape"); in regular_request_wait()
1136 wait_event(conf->wait_barrier, in regular_request_wait()
1137 conf->reshape_progress <= bio->bi_iter.bi_sector || in regular_request_wait()
1138 conf->reshape_progress >= bio->bi_iter.bi_sector + in regular_request_wait()
1140 wait_barrier(conf, false); in regular_request_wait()
1148 struct r10conf *conf = mddev->private; in raid10_read_request() local
1174 err_rdev = conf->mirrors[disk].rdev; in raid10_read_request()
1184 if (!regular_request_wait(mddev, conf, bio, r10_bio->sectors)) in raid10_read_request()
1186 rdev = read_balance(conf, r10_bio, &max_sectors); in raid10_read_request()
1203 gfp, &conf->bio_split); in raid10_read_request()
1209 allow_barrier(conf); in raid10_read_request()
1211 wait_barrier(conf, false); in raid10_read_request()
1249 struct r10conf *conf = mddev->private; in raid10_write_one_disk() local
1254 rdev = replacement ? conf->mirrors[devnum].replacement : in raid10_write_one_disk()
1255 conf->mirrors[devnum].rdev; in raid10_write_one_disk()
1267 &conf->mirrors[devnum].rdev->flags) in raid10_write_one_disk()
1268 && enough(conf, devnum)) in raid10_write_one_disk()
1277 if (!raid1_add_bio_to_plug(mddev, mbio, raid10_unplug, conf->copies)) { in raid10_write_one_disk()
1278 spin_lock_irqsave(&conf->device_lock, flags); in raid10_write_one_disk()
1279 bio_list_add(&conf->pending_bio_list, mbio); in raid10_write_one_disk()
1280 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_write_one_disk()
1287 struct r10conf *conf = mddev->private; in wait_blocked_dev() local
1293 for (i = 0; i < conf->copies; i++) { in wait_blocked_dev()
1296 rdev = conf->mirrors[i].rdev; in wait_blocked_dev()
1321 rrdev = conf->mirrors[i].replacement; in wait_blocked_dev()
1331 allow_barrier(conf); in wait_blocked_dev()
1332 mddev_add_trace_msg(conf->mddev, in wait_blocked_dev()
1336 wait_barrier(conf, false); in wait_blocked_dev()
1344 struct r10conf *conf = mddev->private; in raid10_write_request() local
1361 prepare_to_wait(&conf->wait_barrier, in raid10_write_request()
1368 finish_wait(&conf->wait_barrier, &w); in raid10_write_request()
1372 if (!regular_request_wait(mddev, conf, bio, sectors)) in raid10_write_request()
1376 ? (bio->bi_iter.bi_sector < conf->reshape_safe && in raid10_write_request()
1377 bio->bi_iter.bi_sector + sectors > conf->reshape_progress) in raid10_write_request()
1378 : (bio->bi_iter.bi_sector + sectors > conf->reshape_safe && in raid10_write_request()
1379 bio->bi_iter.bi_sector < conf->reshape_progress))) { in raid10_write_request()
1381 mddev->reshape_position = conf->reshape_progress; in raid10_write_request()
1386 allow_barrier(conf); in raid10_write_request()
1390 mddev_add_trace_msg(conf->mddev, in raid10_write_request()
1395 conf->reshape_safe = mddev->reshape_position; in raid10_write_request()
1409 raid10_find_phys(conf, r10_bio); in raid10_write_request()
1415 for (i = 0; i < conf->copies; i++) { in raid10_write_request()
1419 rdev = conf->mirrors[d].rdev; in raid10_write_request()
1420 rrdev = conf->mirrors[d].replacement; in raid10_write_request()
1484 GFP_NOIO, &conf->bio_split); in raid10_write_request()
1490 allow_barrier(conf); in raid10_write_request()
1492 wait_barrier(conf, false); in raid10_write_request()
1501 for (i = 0; i < conf->copies; i++) { in raid10_write_request()
1512 struct md_rdev *rdev = conf->mirrors[d].rdev; in raid10_write_request()
1513 struct md_rdev *rrdev = conf->mirrors[d].replacement; in raid10_write_request()
1532 struct r10conf *conf = mddev->private; in __make_request() local
1535 r10_bio = mempool_alloc(&conf->r10bio_pool, GFP_NOIO); in __make_request()
1545 conf->geo.raid_disks); in __make_request()
1555 struct r10conf *conf = r10bio->mddev->private; in raid_end_discard_bio() local
1560 allow_barrier(conf); in raid_end_discard_bio()
1578 struct r10conf *conf = r10_bio->mddev->private; in raid10_end_discard_request() local
1589 dev = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in raid10_end_discard_request()
1590 rdev = repl ? conf->mirrors[dev].replacement : in raid10_end_discard_request()
1591 conf->mirrors[dev].rdev; in raid10_end_discard_request()
1594 rdev_dec_pending(rdev, conf->mddev); in raid10_end_discard_request()
1605 struct r10conf *conf = mddev->private; in raid10_handle_discard() local
1606 struct geom *geo = &conf->geo; in raid10_handle_discard()
1627 if (!wait_barrier(conf, bio->bi_opf & REQ_NOWAIT)) { in raid10_handle_discard()
1667 split = bio_split(bio, split_size, GFP_NOIO, &conf->bio_split); in raid10_handle_discard()
1674 allow_barrier(conf); in raid10_handle_discard()
1677 wait_barrier(conf, false); in raid10_handle_discard()
1682 split = bio_split(bio, split_size, GFP_NOIO, &conf->bio_split); in raid10_handle_discard()
1689 allow_barrier(conf); in raid10_handle_discard()
1693 wait_barrier(conf, false); in raid10_handle_discard()
1723 r10_bio = mempool_alloc(&conf->r10bio_pool, GFP_NOIO); in raid10_handle_discard()
1754 rdev = conf->mirrors[disk].rdev; in raid10_handle_discard()
1755 rrdev = conf->mirrors[disk].replacement; in raid10_handle_discard()
1814 struct md_rdev *rdev = conf->mirrors[disk].rdev; in raid10_handle_discard()
1828 struct md_rdev *rrdev = conf->mirrors[disk].replacement; in raid10_handle_discard()
1850 wait_barrier(conf, false); in raid10_handle_discard()
1858 allow_barrier(conf); in raid10_handle_discard()
1864 struct r10conf *conf = mddev->private; in raid10_make_request() local
1865 sector_t chunk_mask = (conf->geo.chunk_mask & conf->prev.chunk_mask); in raid10_make_request()
1885 && (conf->geo.near_copies < conf->geo.raid_disks in raid10_make_request()
1886 || conf->prev.near_copies < in raid10_make_request()
1887 conf->prev.raid_disks))) in raid10_make_request()
1894 wake_up_barrier(conf); in raid10_make_request()
1900 struct r10conf *conf = mddev->private; in raid10_status() local
1905 if (conf->geo.near_copies < conf->geo.raid_disks) in raid10_status()
1907 if (conf->geo.near_copies > 1) in raid10_status()
1908 seq_printf(seq, " %d near-copies", conf->geo.near_copies); in raid10_status()
1909 if (conf->geo.far_copies > 1) { in raid10_status()
1910 if (conf->geo.far_offset) in raid10_status()
1911 seq_printf(seq, " %d offset-copies", conf->geo.far_copies); in raid10_status()
1913 seq_printf(seq, " %d far-copies", conf->geo.far_copies); in raid10_status()
1914 if (conf->geo.far_set_size != conf->geo.raid_disks) in raid10_status()
1915 seq_printf(seq, " %d devices per set", conf->geo.far_set_size); in raid10_status()
1917 seq_printf(seq, " [%d/%d] [", conf->geo.raid_disks, in raid10_status()
1918 conf->geo.raid_disks - mddev->degraded); in raid10_status()
1919 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_status()
1920 struct md_rdev *rdev = READ_ONCE(conf->mirrors[i].rdev); in raid10_status()
1932 static int _enough(struct r10conf *conf, int previous, int ignore) in _enough() argument
1938 disks = conf->prev.raid_disks; in _enough()
1939 ncopies = conf->prev.near_copies; in _enough()
1941 disks = conf->geo.raid_disks; in _enough()
1942 ncopies = conf->geo.near_copies; in _enough()
1946 int n = conf->copies; in _enough()
1952 (rdev = conf->mirrors[this].rdev) && in _enough()
1966 static int enough(struct r10conf *conf, int ignore) in enough() argument
1973 return _enough(conf, 0, ignore) && in enough()
1974 _enough(conf, 1, ignore); in enough()
1994 struct r10conf *conf = mddev->private; in raid10_error() local
1997 spin_lock_irqsave(&conf->device_lock, flags); in raid10_error()
1999 if (test_bit(In_sync, &rdev->flags) && !enough(conf, rdev->raid_disk)) { in raid10_error()
2003 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_error()
2015 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_error()
2019 mdname(mddev), conf->geo.raid_disks - mddev->degraded); in raid10_error()
2022 static void print_conf(struct r10conf *conf) in print_conf() argument
2028 if (!conf) { in print_conf()
2032 pr_debug(" --- wd:%d rd:%d\n", conf->geo.raid_disks - conf->mddev->degraded, in print_conf()
2033 conf->geo.raid_disks); in print_conf()
2035 lockdep_assert_held(&conf->mddev->reconfig_mutex); in print_conf()
2036 for (i = 0; i < conf->geo.raid_disks; i++) { in print_conf()
2037 rdev = conf->mirrors[i].rdev; in print_conf()
2046 static void close_sync(struct r10conf *conf) in close_sync() argument
2048 wait_barrier(conf, false); in close_sync()
2049 allow_barrier(conf); in close_sync()
2051 mempool_exit(&conf->r10buf_pool); in close_sync()
2057 struct r10conf *conf = mddev->private; in raid10_spare_active() local
2066 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_spare_active()
2067 tmp = conf->mirrors + i; in raid10_spare_active()
2094 spin_lock_irqsave(&conf->device_lock, flags); in raid10_spare_active()
2096 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10_spare_active()
2098 print_conf(conf); in raid10_spare_active()
2104 struct r10conf *conf = mddev->private; in raid10_add_disk() local
2108 int last = conf->geo.raid_disks - 1; in raid10_add_disk()
2116 if (rdev->saved_raid_disk < 0 && !_enough(conf, 1, -1)) in raid10_add_disk()
2123 rdev->saved_raid_disk < conf->geo.raid_disks && in raid10_add_disk()
2124 conf->mirrors[rdev->saved_raid_disk].rdev == NULL) in raid10_add_disk()
2129 p = &conf->mirrors[mirror]; in raid10_add_disk()
2147 conf->fullsync = 1; in raid10_add_disk()
2153 p = &conf->mirrors[repl_slot]; in raid10_add_disk()
2160 conf->fullsync = 1; in raid10_add_disk()
2164 print_conf(conf); in raid10_add_disk()
2170 struct r10conf *conf = mddev->private; in raid10_remove_disk() local
2176 print_conf(conf); in raid10_remove_disk()
2179 p = conf->mirrors + number; in raid10_remove_disk()
2198 number < conf->geo.raid_disks && in raid10_remove_disk()
2199 enough(conf, -1)) { in raid10_remove_disk()
2216 print_conf(conf); in raid10_remove_disk()
2222 struct r10conf *conf = r10_bio->mddev->private; in __end_sync_read() local
2231 &conf->mirrors[d].rdev->corrected_errors); in __end_sync_read()
2236 rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev); in __end_sync_read()
2249 struct r10conf *conf = r10_bio->mddev->private; in end_sync_read() local
2250 int d = find_bio_disk(conf, r10_bio, bio, NULL, NULL); in end_sync_read()
2294 struct r10conf *conf = mddev->private; in end_sync_write() local
2300 d = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in end_sync_write()
2302 rdev = conf->mirrors[d].replacement; in end_sync_write()
2304 rdev = conf->mirrors[d].rdev; in end_sync_write()
2344 struct r10conf *conf = mddev->private; in sync_request_write() local
2353 for (i=0; i<conf->copies; i++) in sync_request_write()
2357 if (i == conf->copies) in sync_request_write()
2368 for (i=0 ; i < conf->copies ; i++) { in sync_request_write()
2382 rdev = conf->mirrors[d].rdev; in sync_request_write()
2416 bio_reset(tbio, conf->mirrors[d].rdev->bdev, REQ_OP_WRITE); in sync_request_write()
2427 atomic_inc(&conf->mirrors[d].rdev->nr_pending); in sync_request_write()
2429 md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(tbio)); in sync_request_write()
2431 if (test_bit(FailFast, &conf->mirrors[d].rdev->flags)) in sync_request_write()
2433 tbio->bi_iter.bi_sector += conf->mirrors[d].rdev->data_offset; in sync_request_write()
2440 for (i = 0; i < conf->copies; i++) { in sync_request_write()
2451 md_sync_acct(conf->mirrors[d].replacement->bdev, in sync_request_write()
2483 struct r10conf *conf = mddev->private; in fix_recovery_read_error() local
2501 rdev = conf->mirrors[dr].rdev; in fix_recovery_read_error()
2509 rdev = conf->mirrors[dw].rdev; in fix_recovery_read_error()
2531 if (rdev != conf->mirrors[dw].rdev) { in fix_recovery_read_error()
2533 struct md_rdev *rdev2 = conf->mirrors[dw].rdev; in fix_recovery_read_error()
2541 conf->mirrors[dw].recovery_disabled in fix_recovery_read_error()
2558 struct r10conf *conf = mddev->private; in recovery_request_write() local
2585 atomic_inc(&conf->mirrors[d].rdev->nr_pending); in recovery_request_write()
2586 md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(wbio)); in recovery_request_write()
2590 atomic_inc(&conf->mirrors[d].replacement->nr_pending); in recovery_request_write()
2591 md_sync_acct(conf->mirrors[d].replacement->bdev, in recovery_request_write()
2626 static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10bio *r10_bio) in fix_read_error() argument
2636 rdev = conf->mirrors[d].rdev; in fix_read_error()
2659 rdev = conf->mirrors[d].rdev; in fix_read_error()
2671 conf->tmppage, in fix_read_error()
2678 if (sl == conf->copies) in fix_read_error()
2688 rdev = conf->mirrors[dn].rdev; in fix_read_error()
2706 sl = conf->copies; in fix_read_error()
2709 rdev = conf->mirrors[d].rdev; in fix_read_error()
2719 s, conf->tmppage, REQ_OP_WRITE) in fix_read_error()
2738 sl = conf->copies; in fix_read_error()
2741 rdev = conf->mirrors[d].rdev; in fix_read_error()
2751 s, conf->tmppage, REQ_OP_READ)) { in fix_read_error()
2786 struct r10conf *conf = mddev->private; in narrow_write_error() local
2787 struct md_rdev *rdev = conf->mirrors[r10_bio->devs[i].devnum].rdev; in narrow_write_error()
2847 struct r10conf *conf = mddev->private; in handle_read_error() local
2865 freeze_array(conf, 1); in handle_read_error()
2866 fix_read_error(conf, mddev, r10_bio); in handle_read_error()
2867 unfreeze_array(conf); in handle_read_error()
2878 allow_barrier(conf); in handle_read_error()
2881 static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio) in handle_write_completed() argument
2894 for (m = 0; m < conf->copies; m++) { in handle_write_completed()
2896 rdev = conf->mirrors[dev].rdev; in handle_write_completed()
2910 md_error(conf->mddev, rdev); in handle_write_completed()
2912 rdev = conf->mirrors[dev].replacement; in handle_write_completed()
2927 md_error(conf->mddev, rdev); in handle_write_completed()
2933 for (m = 0; m < conf->copies; m++) { in handle_write_completed()
2936 rdev = conf->mirrors[dev].rdev; in handle_write_completed()
2942 rdev_dec_pending(rdev, conf->mddev); in handle_write_completed()
2946 md_error(conf->mddev, rdev); in handle_write_completed()
2947 rdev_dec_pending(rdev, conf->mddev); in handle_write_completed()
2950 rdev = conf->mirrors[dev].replacement; in handle_write_completed()
2956 rdev_dec_pending(rdev, conf->mddev); in handle_write_completed()
2960 spin_lock_irq(&conf->device_lock); in handle_write_completed()
2961 list_add(&r10_bio->retry_list, &conf->bio_end_io_list); in handle_write_completed()
2962 conf->nr_queued++; in handle_write_completed()
2963 spin_unlock_irq(&conf->device_lock); in handle_write_completed()
2968 wake_up(&conf->wait_barrier); in handle_write_completed()
2969 md_wakeup_thread(conf->mddev->thread); in handle_write_completed()
2984 struct r10conf *conf = mddev->private; in raid10d() local
2985 struct list_head *head = &conf->retry_list; in raid10d()
2990 if (!list_empty_careful(&conf->bio_end_io_list) && in raid10d()
2993 spin_lock_irqsave(&conf->device_lock, flags); in raid10d()
2995 while (!list_empty(&conf->bio_end_io_list)) { in raid10d()
2996 list_move(conf->bio_end_io_list.prev, &tmp); in raid10d()
2997 conf->nr_queued--; in raid10d()
3000 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10d()
3016 flush_pending_writes(conf); in raid10d()
3018 spin_lock_irqsave(&conf->device_lock, flags); in raid10d()
3020 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10d()
3025 conf->nr_queued--; in raid10d()
3026 spin_unlock_irqrestore(&conf->device_lock, flags); in raid10d()
3029 conf = mddev->private; in raid10d()
3032 handle_write_completed(conf, r10_bio); in raid10d()
3051 static int init_resync(struct r10conf *conf) in init_resync() argument
3056 BUG_ON(mempool_initialized(&conf->r10buf_pool)); in init_resync()
3057 conf->have_replacement = 0; in init_resync()
3058 for (i = 0; i < conf->geo.raid_disks; i++) in init_resync()
3059 if (conf->mirrors[i].replacement) in init_resync()
3060 conf->have_replacement = 1; in init_resync()
3061 ret = mempool_init(&conf->r10buf_pool, buffs, in init_resync()
3062 r10buf_pool_alloc, r10buf_pool_free, conf); in init_resync()
3065 conf->next_resync = 0; in init_resync()
3069 static struct r10bio *raid10_alloc_init_r10buf(struct r10conf *conf) in raid10_alloc_init_r10buf() argument
3071 struct r10bio *r10bio = mempool_alloc(&conf->r10buf_pool, GFP_NOIO); in raid10_alloc_init_r10buf()
3077 if (test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery) || in raid10_alloc_init_r10buf()
3078 test_bit(MD_RECOVERY_RESHAPE, &conf->mddev->recovery)) in raid10_alloc_init_r10buf()
3079 nalloc = conf->copies; /* resync */ in raid10_alloc_init_r10buf()
3102 static void raid10_set_cluster_sync_high(struct r10conf *conf) in raid10_set_cluster_sync_high() argument
3119 chunks = conf->geo.raid_disks / conf->geo.near_copies; in raid10_set_cluster_sync_high()
3120 if (conf->geo.raid_disks % conf->geo.near_copies == 0) in raid10_set_cluster_sync_high()
3124 window_size = (chunks + extra_chunk) * conf->mddev->chunk_sectors; in raid10_set_cluster_sync_high()
3132 conf->cluster_sync_high = conf->cluster_sync_low + window_size; in raid10_set_cluster_sync_high()
3170 struct r10conf *conf = mddev->private; in raid10_sync_request() local
3179 sector_t chunk_mask = conf->geo.chunk_mask; in raid10_sync_request()
3193 conf->fullsync == 0) { in raid10_sync_request()
3198 if (!mempool_initialized(&conf->r10buf_pool)) in raid10_sync_request()
3199 if (init_resync(conf)) in raid10_sync_request()
3204 conf->cluster_sync_low = 0; in raid10_sync_request()
3205 conf->cluster_sync_high = 0; in raid10_sync_request()
3217 end_reshape(conf); in raid10_sync_request()
3218 close_sync(conf); in raid10_sync_request()
3227 else for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3229 raid10_find_virt(conf, mddev->curr_resync, i); in raid10_sync_request()
3236 if ((!mddev->bitmap || conf->fullsync) in raid10_sync_request()
3237 && conf->have_replacement in raid10_sync_request()
3242 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3244 conf->mirrors[i].replacement; in raid10_sync_request()
3250 conf->fullsync = 0; in raid10_sync_request()
3253 close_sync(conf); in raid10_sync_request()
3261 if (chunks_skipped >= conf->geo.raid_disks) { in raid10_sync_request()
3270 conf->mirrors[error_disk].recovery_disabled = in raid10_sync_request()
3288 if (conf->geo.near_copies < conf->geo.raid_disks && in raid10_sync_request()
3296 if (conf->nr_waiting) in raid10_sync_request()
3320 for (i = 0 ; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3326 struct raid10_info *mirror = &conf->mirrors[i]; in raid10_sync_request()
3344 sect = raid10_find_virt(conf, sector_nr, i); in raid10_sync_request()
3361 !conf->fullsync) { in raid10_sync_request()
3373 r10_bio = raid10_alloc_init_r10buf(conf); in raid10_sync_request()
3375 raise_barrier(conf, rb2 != NULL); in raid10_sync_request()
3385 raid10_find_phys(conf, r10_bio); in raid10_sync_request()
3390 for (j = 0; j < conf->geo.raid_disks; j++) { in raid10_sync_request()
3391 struct md_rdev *rdev = conf->mirrors[j].rdev; in raid10_sync_request()
3403 for (j=0; j<conf->copies;j++) { in raid10_sync_request()
3407 struct md_rdev *rdev = conf->mirrors[d].rdev; in raid10_sync_request()
3443 for (k=0; k<conf->copies; k++) in raid10_sync_request()
3446 BUG_ON(k == conf->copies); in raid10_sync_request()
3486 if (j == conf->copies) { in raid10_sync_request()
3494 for (k = 0; k < conf->copies; k++) in raid10_sync_request()
3541 for (; j < conf->copies; j++) { in raid10_sync_request()
3543 if (conf->mirrors[d].rdev && in raid10_sync_request()
3545 &conf->mirrors[d].rdev->flags)) in raid10_sync_request()
3575 (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high)); in raid10_sync_request()
3580 !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, in raid10_sync_request()
3588 r10_bio = raid10_alloc_init_r10buf(conf); in raid10_sync_request()
3593 raise_barrier(conf, 0); in raid10_sync_request()
3594 conf->next_resync = sector_nr; in raid10_sync_request()
3599 raid10_find_phys(conf, r10_bio); in raid10_sync_request()
3602 for (i = 0; i < conf->copies; i++) { in raid10_sync_request()
3613 rdev = conf->mirrors[d].rdev; in raid10_sync_request()
3641 rdev = conf->mirrors[d].replacement; in raid10_sync_request()
3664 for (i=0; i<conf->copies; i++) { in raid10_sync_request()
3667 rdev_dec_pending(conf->mirrors[d].rdev, in raid10_sync_request()
3672 conf->mirrors[d].replacement, in raid10_sync_request()
3708 if (conf->cluster_sync_high < sector_nr + nr_sectors) { in raid10_sync_request()
3709 conf->cluster_sync_low = mddev->curr_resync_completed; in raid10_sync_request()
3710 raid10_set_cluster_sync_high(conf); in raid10_sync_request()
3713 conf->cluster_sync_low, in raid10_sync_request()
3714 conf->cluster_sync_high); in raid10_sync_request()
3721 for (i = 0; i < conf->geo.raid_disks; i++) { in raid10_sync_request()
3727 sect_va1 = raid10_find_virt(conf, sector_nr, i); in raid10_sync_request()
3729 if (conf->cluster_sync_high < sect_va1 + nr_sectors) { in raid10_sync_request()
3735 sect_va2 = raid10_find_virt(conf, in raid10_sync_request()
3738 if (conf->cluster_sync_low == 0 || in raid10_sync_request()
3739 conf->cluster_sync_low > sect_va2) in raid10_sync_request()
3740 conf->cluster_sync_low = sect_va2; in raid10_sync_request()
3744 raid10_set_cluster_sync_high(conf); in raid10_sync_request()
3746 conf->cluster_sync_low, in raid10_sync_request()
3747 conf->cluster_sync_high); in raid10_sync_request()
3791 struct r10conf *conf = mddev->private; in raid10_size() local
3794 raid_disks = min(conf->geo.raid_disks, in raid10_size()
3795 conf->prev.raid_disks); in raid10_size()
3797 sectors = conf->dev_sectors; in raid10_size()
3799 size = sectors >> conf->geo.chunk_shift; in raid10_size()
3800 sector_div(size, conf->geo.far_copies); in raid10_size()
3802 sector_div(size, conf->geo.near_copies); in raid10_size()
3804 return size << conf->geo.chunk_shift; in raid10_size()
3807 static void calc_sectors(struct r10conf *conf, sector_t size) in calc_sectors() argument
3814 size = size >> conf->geo.chunk_shift; in calc_sectors()
3815 sector_div(size, conf->geo.far_copies); in calc_sectors()
3816 size = size * conf->geo.raid_disks; in calc_sectors()
3817 sector_div(size, conf->geo.near_copies); in calc_sectors()
3820 size = size * conf->copies; in calc_sectors()
3825 size = DIV_ROUND_UP_SECTOR_T(size, conf->geo.raid_disks); in calc_sectors()
3827 conf->dev_sectors = size << conf->geo.chunk_shift; in calc_sectors()
3829 if (conf->geo.far_offset) in calc_sectors()
3830 conf->geo.stride = 1 << conf->geo.chunk_shift; in calc_sectors()
3832 sector_div(size, conf->geo.far_copies); in calc_sectors()
3833 conf->geo.stride = size << conf->geo.chunk_shift; in calc_sectors()
3894 static void raid10_free_conf(struct r10conf *conf) in raid10_free_conf() argument
3896 if (!conf) in raid10_free_conf()
3899 mempool_exit(&conf->r10bio_pool); in raid10_free_conf()
3900 kfree(conf->mirrors); in raid10_free_conf()
3901 kfree(conf->mirrors_old); in raid10_free_conf()
3902 kfree(conf->mirrors_new); in raid10_free_conf()
3903 safe_put_page(conf->tmppage); in raid10_free_conf()
3904 bioset_exit(&conf->bio_split); in raid10_free_conf()
3905 kfree(conf); in raid10_free_conf()
3910 struct r10conf *conf = NULL; in setup_conf() local
3930 conf = kzalloc(sizeof(struct r10conf), GFP_KERNEL); in setup_conf()
3931 if (!conf) in setup_conf()
3935 conf->mirrors = kcalloc(mddev->raid_disks + max(0, -mddev->delta_disks), in setup_conf()
3938 if (!conf->mirrors) in setup_conf()
3941 conf->tmppage = alloc_page(GFP_KERNEL); in setup_conf()
3942 if (!conf->tmppage) in setup_conf()
3945 conf->geo = geo; in setup_conf()
3946 conf->copies = copies; in setup_conf()
3947 err = mempool_init(&conf->r10bio_pool, NR_RAID_BIOS, r10bio_pool_alloc, in setup_conf()
3948 rbio_pool_free, conf); in setup_conf()
3952 err = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0); in setup_conf()
3956 calc_sectors(conf, mddev->dev_sectors); in setup_conf()
3958 conf->prev = conf->geo; in setup_conf()
3959 conf->reshape_progress = MaxSector; in setup_conf()
3961 if (setup_geo(&conf->prev, mddev, geo_old) != conf->copies) { in setup_conf()
3965 conf->reshape_progress = mddev->reshape_position; in setup_conf()
3966 if (conf->prev.far_offset) in setup_conf()
3967 conf->prev.stride = 1 << conf->prev.chunk_shift; in setup_conf()
3970 conf->prev.stride = conf->dev_sectors; in setup_conf()
3972 conf->reshape_safe = conf->reshape_progress; in setup_conf()
3973 spin_lock_init(&conf->device_lock); in setup_conf()
3974 INIT_LIST_HEAD(&conf->retry_list); in setup_conf()
3975 INIT_LIST_HEAD(&conf->bio_end_io_list); in setup_conf()
3977 seqlock_init(&conf->resync_lock); in setup_conf()
3978 init_waitqueue_head(&conf->wait_barrier); in setup_conf()
3979 atomic_set(&conf->nr_pending, 0); in setup_conf()
3982 rcu_assign_pointer(conf->thread, in setup_conf()
3984 if (!conf->thread) in setup_conf()
3987 conf->mddev = mddev; in setup_conf()
3988 return conf; in setup_conf()
3991 raid10_free_conf(conf); in setup_conf()
3995 static unsigned int raid10_nr_stripes(struct r10conf *conf) in raid10_nr_stripes() argument
3997 unsigned int raid_disks = conf->geo.raid_disks; in raid10_nr_stripes()
3999 if (conf->geo.raid_disks % conf->geo.near_copies) in raid10_nr_stripes()
4001 return raid_disks / conf->geo.near_copies; in raid10_nr_stripes()
4006 struct r10conf *conf = mddev->private; in raid10_set_queue_limits() local
4013 lim.io_opt = lim.io_min * raid10_nr_stripes(conf); in raid10_set_queue_limits()
4023 struct r10conf *conf; in raid10_run() local
4033 conf = setup_conf(mddev); in raid10_run()
4034 if (IS_ERR(conf)) in raid10_run()
4035 return PTR_ERR(conf); in raid10_run()
4036 mddev->private = conf; in raid10_run()
4038 conf = mddev->private; in raid10_run()
4039 if (!conf) in raid10_run()
4042 rcu_assign_pointer(mddev->thread, conf->thread); in raid10_run()
4043 rcu_assign_pointer(conf->thread, NULL); in raid10_run()
4045 if (mddev_is_clustered(conf->mddev)) { in raid10_run()
4063 if (disk_idx >= conf->geo.raid_disks && in raid10_run()
4064 disk_idx >= conf->prev.raid_disks) in raid10_run()
4066 disk = conf->mirrors + disk_idx; in raid10_run()
4089 if (!mddev_is_dm(conf->mddev)) { in raid10_run()
4099 if (!enough(conf, -1)) { in raid10_run()
4105 if (conf->reshape_progress != MaxSector) { in raid10_run()
4107 if (conf->geo.far_copies != 1 && in raid10_run()
4108 conf->geo.far_offset == 0) in raid10_run()
4110 if (conf->prev.far_copies != 1 && in raid10_run()
4111 conf->prev.far_offset == 0) in raid10_run()
4117 i < conf->geo.raid_disks in raid10_run()
4118 || i < conf->prev.raid_disks; in raid10_run()
4121 disk = conf->mirrors + i; in raid10_run()
4136 conf->fullsync = 1; in raid10_run()
4142 conf->fullsync = 1; in raid10_run()
4152 mdname(mddev), conf->geo.raid_disks - mddev->degraded, in raid10_run()
4153 conf->geo.raid_disks); in raid10_run()
4157 mddev->dev_sectors = conf->dev_sectors; in raid10_run()
4166 if (conf->reshape_progress != MaxSector) { in raid10_run()
4169 before_length = ((1 << conf->prev.chunk_shift) * in raid10_run()
4170 conf->prev.far_copies); in raid10_run()
4171 after_length = ((1 << conf->geo.chunk_shift) * in raid10_run()
4172 conf->geo.far_copies); in raid10_run()
4179 conf->offset_diff = min_offset_diff; in raid10_run()
4191 raid10_free_conf(conf); in raid10_run()
4204 struct r10conf *conf = mddev->private; in raid10_quiesce() local
4207 raise_barrier(conf, 0); in raid10_quiesce()
4209 lower_barrier(conf); in raid10_quiesce()
4226 struct r10conf *conf = mddev->private; in raid10_resize() local
4233 if (conf->geo.far_copies > 1 && !conf->geo.far_offset) in raid10_resize()
4252 calc_sectors(conf, sectors); in raid10_resize()
4253 mddev->dev_sectors = conf->dev_sectors; in raid10_resize()
4261 struct r10conf *conf; in raid10_takeover_raid0() local
4281 conf = setup_conf(mddev); in raid10_takeover_raid0()
4282 if (!IS_ERR(conf)) { in raid10_takeover_raid0()
4290 return conf; in raid10_takeover_raid0()
4331 struct r10conf *conf = mddev->private; in raid10_check_reshape() local
4334 if (conf->geo.far_copies != 1 && !conf->geo.far_offset) in raid10_check_reshape()
4337 if (setup_geo(&geo, mddev, geo_start) != conf->copies) in raid10_check_reshape()
4348 if (!enough(conf, -1)) in raid10_check_reshape()
4351 kfree(conf->mirrors_new); in raid10_check_reshape()
4352 conf->mirrors_new = NULL; in raid10_check_reshape()
4355 conf->mirrors_new = in raid10_check_reshape()
4359 if (!conf->mirrors_new) in raid10_check_reshape()
4378 static int calc_degraded(struct r10conf *conf) in calc_degraded() argument
4385 for (i = 0; i < conf->prev.raid_disks; i++) { in calc_degraded()
4386 struct md_rdev *rdev = conf->mirrors[i].rdev; in calc_degraded()
4397 if (conf->geo.raid_disks == conf->prev.raid_disks) in calc_degraded()
4400 for (i = 0; i < conf->geo.raid_disks; i++) { in calc_degraded()
4401 struct md_rdev *rdev = conf->mirrors[i].rdev; in calc_degraded()
4411 if (conf->geo.raid_disks <= conf->prev.raid_disks) in calc_degraded()
4436 struct r10conf *conf = mddev->private; in raid10_start_reshape() local
4444 if (setup_geo(&new, mddev, geo_start) != conf->copies) in raid10_start_reshape()
4447 before_length = ((1 << conf->prev.chunk_shift) * in raid10_start_reshape()
4448 conf->prev.far_copies); in raid10_start_reshape()
4449 after_length = ((1 << conf->geo.chunk_shift) * in raid10_start_reshape()
4450 conf->geo.far_copies); in raid10_start_reshape()
4475 conf->offset_diff = min_offset_diff; in raid10_start_reshape()
4476 spin_lock_irq(&conf->device_lock); in raid10_start_reshape()
4477 if (conf->mirrors_new) { in raid10_start_reshape()
4478 memcpy(conf->mirrors_new, conf->mirrors, in raid10_start_reshape()
4479 sizeof(struct raid10_info)*conf->prev.raid_disks); in raid10_start_reshape()
4481 kfree(conf->mirrors_old); in raid10_start_reshape()
4482 conf->mirrors_old = conf->mirrors; in raid10_start_reshape()
4483 conf->mirrors = conf->mirrors_new; in raid10_start_reshape()
4484 conf->mirrors_new = NULL; in raid10_start_reshape()
4486 setup_geo(&conf->geo, mddev, geo_start); in raid10_start_reshape()
4491 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4497 conf->reshape_progress = size; in raid10_start_reshape()
4499 conf->reshape_progress = 0; in raid10_start_reshape()
4500 conf->reshape_safe = conf->reshape_progress; in raid10_start_reshape()
4501 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4508 newsize = raid10_size(mddev, 0, conf->geo.raid_disks); in raid10_start_reshape()
4550 conf->prev.raid_disks) in raid10_start_reshape()
4558 } else if (rdev->raid_disk >= conf->prev.raid_disks in raid10_start_reshape()
4568 spin_lock_irq(&conf->device_lock); in raid10_start_reshape()
4569 mddev->degraded = calc_degraded(conf); in raid10_start_reshape()
4570 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4571 mddev->raid_disks = conf->geo.raid_disks; in raid10_start_reshape()
4572 mddev->reshape_position = conf->reshape_progress; in raid10_start_reshape()
4580 conf->reshape_checkpoint = jiffies; in raid10_start_reshape()
4586 spin_lock_irq(&conf->device_lock); in raid10_start_reshape()
4587 conf->geo = conf->prev; in raid10_start_reshape()
4588 mddev->raid_disks = conf->geo.raid_disks; in raid10_start_reshape()
4592 conf->reshape_progress = MaxSector; in raid10_start_reshape()
4593 conf->reshape_safe = MaxSector; in raid10_start_reshape()
4595 spin_unlock_irq(&conf->device_lock); in raid10_start_reshape()
4670 struct r10conf *conf = mddev->private; in reshape_request() local
4686 conf->reshape_progress < raid10_size(mddev, 0, 0)) { in reshape_request()
4688 - conf->reshape_progress); in reshape_request()
4690 conf->reshape_progress > 0) in reshape_request()
4691 sector_nr = conf->reshape_progress; in reshape_request()
4708 next = first_dev_address(conf->reshape_progress - 1, in reshape_request()
4709 &conf->geo); in reshape_request()
4714 safe = last_dev_address(conf->reshape_safe - 1, in reshape_request()
4715 &conf->prev); in reshape_request()
4717 if (next + conf->offset_diff < safe) in reshape_request()
4720 last = conf->reshape_progress - 1; in reshape_request()
4721 sector_nr = last & ~(sector_t)(conf->geo.chunk_mask in reshape_request()
4722 & conf->prev.chunk_mask); in reshape_request()
4729 next = last_dev_address(conf->reshape_progress, &conf->geo); in reshape_request()
4734 safe = first_dev_address(conf->reshape_safe, &conf->prev); in reshape_request()
4739 if (next > safe + conf->offset_diff) in reshape_request()
4742 sector_nr = conf->reshape_progress; in reshape_request()
4743 last = sector_nr | (conf->geo.chunk_mask in reshape_request()
4744 & conf->prev.chunk_mask); in reshape_request()
4751 time_after(jiffies, conf->reshape_checkpoint + 10*HZ)) { in reshape_request()
4753 wait_barrier(conf, false); in reshape_request()
4754 mddev->reshape_position = conf->reshape_progress; in reshape_request()
4757 - conf->reshape_progress; in reshape_request()
4759 mddev->curr_resync_completed = conf->reshape_progress; in reshape_request()
4760 conf->reshape_checkpoint = jiffies; in reshape_request()
4766 allow_barrier(conf); in reshape_request()
4769 conf->reshape_safe = mddev->reshape_position; in reshape_request()
4770 allow_barrier(conf); in reshape_request()
4773 raise_barrier(conf, 0); in reshape_request()
4776 r10_bio = raid10_alloc_init_r10buf(conf); in reshape_request()
4778 raise_barrier(conf, 1); in reshape_request()
4784 rdev = read_balance(conf, r10_bio, &max_sectors); in reshape_request()
4792 mempool_free(r10_bio, &conf->r10buf_pool); in reshape_request()
4810 if (mddev_is_clustered(mddev) && conf->cluster_sync_high <= sector_nr) { in reshape_request()
4814 conf->cluster_sync_low = sector_nr; in reshape_request()
4815 conf->cluster_sync_high = sector_nr + CLUSTER_RESYNC_WINDOW_SECTORS; in reshape_request()
4824 if (sb_reshape_pos < conf->cluster_sync_low) in reshape_request()
4825 conf->cluster_sync_low = sb_reshape_pos; in reshape_request()
4828 mddev->cluster_ops->resync_info_update(mddev, conf->cluster_sync_low, in reshape_request()
4829 conf->cluster_sync_high); in reshape_request()
4833 __raid10_find_phys(&conf->geo, r10_bio); in reshape_request()
4838 for (s = 0; s < conf->copies*2; s++) { in reshape_request()
4843 rdev2 = conf->mirrors[d].replacement; in reshape_request()
4846 rdev2 = conf->mirrors[d].rdev; in reshape_request()
4891 lower_barrier(conf); in reshape_request()
4897 conf->reshape_progress -= sectors_done; in reshape_request()
4899 conf->reshape_progress += sectors_done; in reshape_request()
4914 struct r10conf *conf = mddev->private; in reshape_request_write() local
4928 for (s = 0; s < conf->copies*2; s++) { in reshape_request_write()
4933 rdev = conf->mirrors[d].replacement; in reshape_request_write()
4936 rdev = conf->mirrors[d].rdev; in reshape_request_write()
4951 static void end_reshape(struct r10conf *conf) in end_reshape() argument
4953 if (test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) in end_reshape()
4956 spin_lock_irq(&conf->device_lock); in end_reshape()
4957 conf->prev = conf->geo; in end_reshape()
4958 md_finish_reshape(conf->mddev); in end_reshape()
4960 conf->reshape_progress = MaxSector; in end_reshape()
4961 conf->reshape_safe = MaxSector; in end_reshape()
4962 spin_unlock_irq(&conf->device_lock); in end_reshape()
4964 mddev_update_io_opt(conf->mddev, raid10_nr_stripes(conf)); in end_reshape()
4965 conf->fullsync = 0; in end_reshape()
4970 struct r10conf *conf = mddev->private; in raid10_update_reshape_pos() local
4976 conf->reshape_progress = mddev->reshape_position; in raid10_update_reshape_pos()
4986 struct r10conf *conf = mddev->private; in handle_reshape_read_error() local
4992 r10b = kmalloc(struct_size(r10b, devs, conf->copies), GFP_NOIO); in handle_reshape_read_error()
5002 __raid10_find_phys(&conf->prev, r10b); in handle_reshape_read_error()
5014 struct md_rdev *rdev = conf->mirrors[d].rdev; in handle_reshape_read_error()
5033 if (slot >= conf->copies) in handle_reshape_read_error()
5056 struct r10conf *conf = mddev->private; in end_reshape_write() local
5062 d = find_bio_disk(conf, r10_bio, bio, &slot, &repl); in end_reshape_write()
5063 rdev = repl ? conf->mirrors[d].replacement : in end_reshape_write()
5064 conf->mirrors[d].rdev; in end_reshape_write()
5086 struct r10conf *conf = mddev->private; in raid10_finish_reshape() local
5099 for (d = conf->geo.raid_disks ; in raid10_finish_reshape()
5100 d < conf->geo.raid_disks - mddev->delta_disks; in raid10_finish_reshape()
5102 struct md_rdev *rdev = conf->mirrors[d].rdev; in raid10_finish_reshape()
5105 rdev = conf->mirrors[d].replacement; in raid10_finish_reshape()
5111 mddev->chunk_sectors = 1 << conf->geo.chunk_shift; in raid10_finish_reshape()