drivers/md/raid1.c

46 static void allow_barrier(struct r1conf *conf, sector_t sector_nr);
47 static void lower_barrier(struct r1conf *conf, sector_t sector_nr);
963 static int raise_barrier(struct r1conf *conf, sector_t sector_nr)
965 	int idx = sector_to_idx(sector_nr);
1013 static void lower_barrier(struct r1conf *conf, sector_t sector_nr)
1015 	int idx = sector_to_idx(sector_nr);
1093 static bool wait_read_barrier(struct r1conf *conf, sector_t sector_nr, bool nowait)
1095 	int idx = sector_to_idx(sector_nr);
1136 static bool wait_barrier(struct r1conf *conf, sector_t sector_nr, bool nowait)
1138 	int idx = sector_to_idx(sector_nr);
1149 static void allow_barrier(struct r1conf *conf, sector_t sector_nr)
1151 	int idx = sector_to_idx(sector_nr);
2759 static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
2774 	int idx = sector_to_idx(sector_nr);
2782 	if (sector_nr >= max_sector) {
2809 		return max_sector - sector_nr;
2814 	if (!md_bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
2828 	/* we are incrementing sector_nr below. To be safe, we check against
2829 	 * sector_nr + two times RESYNC_SECTORS
2832 	md_bitmap_cond_end_sync(mddev->bitmap, sector_nr,
2833 		mddev_is_clustered(mddev) && (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high));
2836 	if (raise_barrier(conf, sector_nr))
2851 	r1_bio->sector = sector_nr;
2855 	good_sectors = align_to_barrier_unit_end(sector_nr, good_sectors);
2875 			if (is_badblock(rdev, sector_nr, good_sectors,
2877 				if (first_bad > sector_nr)
2878 					good_sectors = first_bad - sector_nr;
2880 					bad_sectors -= (sector_nr - first_bad);
2886 			if (sector_nr < first_bad) {
2913 			bio->bi_iter.bi_sector = sector_nr + rdev->data_offset;
2931 				ok = rdev_set_badblocks(rdev, sector_nr,
2968 			max_sector = sector_nr + min_bad;
2969 		rv = max_sector - sector_nr;
2977 	if (max_sector > sector_nr + good_sectors)
2978 		max_sector = sector_nr + good_sectors;
2984 		if (sector_nr + (len>>9) > max_sector)
2985 			len = (max_sector - sector_nr) << 9;
2989 			if (!md_bitmap_start_sync(mddev->bitmap, sector_nr,
3014 		sector_nr += len>>9;
3021 			conf->cluster_sync_high < sector_nr + nr_sectors) {