Lines Matching refs:mddev
28 static int raid0_congested(struct mddev *mddev, int bits) in raid0_congested() argument
30 struct r0conf *conf = mddev->private; in raid0_congested()
46 static void dump_zones(struct mddev *mddev) in dump_zones() argument
52 struct r0conf *conf = mddev->private; in dump_zones()
55 mdname(mddev), in dump_zones()
76 static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf) in create_strip_zones() argument
90 rdev_for_each(rdev1, mddev) { in create_strip_zones()
92 mdname(mddev), in create_strip_zones()
98 sector_div(sectors, mddev->chunk_sectors); in create_strip_zones()
99 rdev1->sectors = sectors * mddev->chunk_sectors; in create_strip_zones()
104 rdev_for_each(rdev2, mddev) { in create_strip_zones()
107 mdname(mddev), in create_strip_zones()
114 mdname(mddev)); in create_strip_zones()
123 mdname(mddev)); in create_strip_zones()
128 mdname(mddev)); in create_strip_zones()
132 mdname(mddev)); in create_strip_zones()
135 mdname(mddev), conf->nr_strip_zones); in create_strip_zones()
139 mdname(mddev), conf->nr_strip_zones); in create_strip_zones()
144 if ((mddev->chunk_sectors << 9) % blksize) { in create_strip_zones()
146 mdname(mddev), in create_strip_zones()
147 mddev->chunk_sectors << 9, blksize); in create_strip_zones()
158 conf->nr_strip_zones*mddev->raid_disks, in create_strip_zones()
171 rdev_for_each(rdev1, mddev) { in create_strip_zones()
174 if (mddev->level == 10) { in create_strip_zones()
180 if (mddev->level == 1) { in create_strip_zones()
191 mdname(mddev)); in create_strip_zones()
194 if (j >= mddev->raid_disks) { in create_strip_zones()
196 "aborting!\n", mdname(mddev), j); in create_strip_zones()
201 "aborting!\n", mdname(mddev), j); in create_strip_zones()
210 if (cnt != mddev->raid_disks) { in create_strip_zones()
212 "aborting!\n", mdname(mddev), cnt, mddev->raid_disks); in create_strip_zones()
226 dev = conf->devlist + i * mddev->raid_disks; in create_strip_zones()
228 pr_debug("md/raid0:%s: zone %d\n", mdname(mddev), i); in create_strip_zones()
237 mdname(mddev), in create_strip_zones()
243 mdname(mddev), in create_strip_zones()
250 mdname(mddev), in create_strip_zones()
258 mdname(mddev), in create_strip_zones()
265 mdname(mddev), in create_strip_zones()
269 pr_debug("md/raid0:%s: done.\n", mdname(mddev)); in create_strip_zones()
304 static struct md_rdev *map_sector(struct mddev *mddev, struct strip_zone *zone, in map_sector() argument
309 struct r0conf *conf = mddev->private; in map_sector()
311 unsigned int chunk_sects = mddev->chunk_sectors; in map_sector()
337 static sector_t raid0_size(struct mddev *mddev, sector_t sectors, int raid_disks) in raid0_size() argument
345 rdev_for_each(rdev, mddev) in raid0_size()
347 ~(sector_t)(mddev->chunk_sectors-1)); in raid0_size()
352 static void raid0_free(struct mddev *mddev, void *priv);
354 static int raid0_run(struct mddev *mddev) in raid0_run() argument
359 if (mddev->chunk_sectors == 0) { in raid0_run()
361 mdname(mddev)); in raid0_run()
364 if (md_check_no_bitmap(mddev)) in raid0_run()
368 if (mddev->private == NULL) { in raid0_run()
369 ret = create_strip_zones(mddev, &conf); in raid0_run()
372 mddev->private = conf; in raid0_run()
374 conf = mddev->private; in raid0_run()
375 if (mddev->queue) { in raid0_run()
379 blk_queue_max_hw_sectors(mddev->queue, mddev->chunk_sectors); in raid0_run()
380 blk_queue_max_write_same_sectors(mddev->queue, mddev->chunk_sectors); in raid0_run()
381 blk_queue_max_discard_sectors(mddev->queue, mddev->chunk_sectors); in raid0_run()
383 blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9); in raid0_run()
384 blk_queue_io_opt(mddev->queue, in raid0_run()
385 (mddev->chunk_sectors << 9) * mddev->raid_disks); in raid0_run()
387 rdev_for_each(rdev, mddev) { in raid0_run()
388 disk_stack_limits(mddev->gendisk, rdev->bdev, in raid0_run()
394 queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); in raid0_run()
396 queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); in raid0_run()
400 md_set_array_sectors(mddev, raid0_size(mddev, 0, 0)); in raid0_run()
403 mdname(mddev), in raid0_run()
404 (unsigned long long)mddev->array_sectors); in raid0_run()
406 if (mddev->queue) { in raid0_run()
416 int stripe = mddev->raid_disks * in raid0_run()
417 (mddev->chunk_sectors << 9) / PAGE_SIZE; in raid0_run()
418 if (mddev->queue->backing_dev_info.ra_pages < 2* stripe) in raid0_run()
419 mddev->queue->backing_dev_info.ra_pages = 2* stripe; in raid0_run()
422 dump_zones(mddev); in raid0_run()
424 ret = md_integrity_register(mddev); in raid0_run()
429 static void raid0_free(struct mddev *mddev, void *priv) in raid0_free() argument
441 static inline int is_io_in_chunk_boundary(struct mddev *mddev, in is_io_in_chunk_boundary() argument
455 static void raid0_make_request(struct mddev *mddev, struct bio *bio) in raid0_make_request() argument
462 md_flush_request(mddev, bio); in raid0_make_request()
468 unsigned chunk_sects = mddev->chunk_sectors; in raid0_make_request()
485 zone = find_zone(mddev->private, §or); in raid0_make_request()
486 tmp_dev = map_sector(mddev, zone, sector, §or); in raid0_make_request()
500 static void raid0_status(struct seq_file *seq, struct mddev *mddev) in raid0_status() argument
502 seq_printf(seq, " %dk chunks", mddev->chunk_sectors / 2); in raid0_status()
506 static void *raid0_takeover_raid45(struct mddev *mddev) in raid0_takeover_raid45() argument
511 if (mddev->degraded != 1) { in raid0_takeover_raid45()
513 mdname(mddev), in raid0_takeover_raid45()
514 mddev->degraded); in raid0_takeover_raid45()
518 rdev_for_each(rdev, mddev) { in raid0_takeover_raid45()
520 if (rdev->raid_disk == mddev->raid_disks-1) { in raid0_takeover_raid45()
522 mdname(mddev)); in raid0_takeover_raid45()
525 rdev->sectors = mddev->dev_sectors; in raid0_takeover_raid45()
529 mddev->new_level = 0; in raid0_takeover_raid45()
530 mddev->new_layout = 0; in raid0_takeover_raid45()
531 mddev->new_chunk_sectors = mddev->chunk_sectors; in raid0_takeover_raid45()
532 mddev->raid_disks--; in raid0_takeover_raid45()
533 mddev->delta_disks = -1; in raid0_takeover_raid45()
535 mddev->recovery_cp = MaxSector; in raid0_takeover_raid45()
537 create_strip_zones(mddev, &priv_conf); in raid0_takeover_raid45()
541 static void *raid0_takeover_raid10(struct mddev *mddev) in raid0_takeover_raid10() argument
551 if (mddev->layout != ((1 << 8) + 2)) { in raid0_takeover_raid10()
553 mdname(mddev), in raid0_takeover_raid10()
554 mddev->layout); in raid0_takeover_raid10()
557 if (mddev->raid_disks & 1) { in raid0_takeover_raid10()
559 mdname(mddev)); in raid0_takeover_raid10()
562 if (mddev->degraded != (mddev->raid_disks>>1)) { in raid0_takeover_raid10()
564 mdname(mddev)); in raid0_takeover_raid10()
569 mddev->new_level = 0; in raid0_takeover_raid10()
570 mddev->new_layout = 0; in raid0_takeover_raid10()
571 mddev->new_chunk_sectors = mddev->chunk_sectors; in raid0_takeover_raid10()
572 mddev->delta_disks = - mddev->raid_disks / 2; in raid0_takeover_raid10()
573 mddev->raid_disks += mddev->delta_disks; in raid0_takeover_raid10()
574 mddev->degraded = 0; in raid0_takeover_raid10()
576 mddev->recovery_cp = MaxSector; in raid0_takeover_raid10()
578 create_strip_zones(mddev, &priv_conf); in raid0_takeover_raid10()
582 static void *raid0_takeover_raid1(struct mddev *mddev) in raid0_takeover_raid1() argument
590 if ((mddev->raid_disks - 1) != mddev->degraded) { in raid0_takeover_raid1()
592 mdname(mddev)); in raid0_takeover_raid1()
603 while (chunksect && (mddev->array_sectors & (chunksect - 1))) in raid0_takeover_raid1()
611 mddev->new_level = 0; in raid0_takeover_raid1()
612 mddev->new_layout = 0; in raid0_takeover_raid1()
613 mddev->new_chunk_sectors = chunksect; in raid0_takeover_raid1()
614 mddev->chunk_sectors = chunksect; in raid0_takeover_raid1()
615 mddev->delta_disks = 1 - mddev->raid_disks; in raid0_takeover_raid1()
616 mddev->raid_disks = 1; in raid0_takeover_raid1()
618 mddev->recovery_cp = MaxSector; in raid0_takeover_raid1()
620 create_strip_zones(mddev, &priv_conf); in raid0_takeover_raid1()
624 static void *raid0_takeover(struct mddev *mddev) in raid0_takeover() argument
633 if (mddev->bitmap) { in raid0_takeover()
635 mdname(mddev)); in raid0_takeover()
638 if (mddev->level == 4) in raid0_takeover()
639 return raid0_takeover_raid45(mddev); in raid0_takeover()
641 if (mddev->level == 5) { in raid0_takeover()
642 if (mddev->layout == ALGORITHM_PARITY_N) in raid0_takeover()
643 return raid0_takeover_raid45(mddev); in raid0_takeover()
646 mdname(mddev), ALGORITHM_PARITY_N); in raid0_takeover()
649 if (mddev->level == 10) in raid0_takeover()
650 return raid0_takeover_raid10(mddev); in raid0_takeover()
652 if (mddev->level == 1) in raid0_takeover()
653 return raid0_takeover_raid1(mddev); in raid0_takeover()
656 mddev->level); in raid0_takeover()
661 static void raid0_quiesce(struct mddev *mddev, int state) in raid0_quiesce() argument