145 static int next_repair_mirror(struct btrfs_failed_bio *fbio, int cur_mirror)  in next_repair_mirror()  argument
147 	if (cur_mirror == fbio->num_copies)  in next_repair_mirror()
148 		return cur_mirror + 1 - fbio->num_copies;  in next_repair_mirror()
152 static int prev_repair_mirror(struct btrfs_failed_bio *fbio, int cur_mirror)  in prev_repair_mirror()  argument
155 		return fbio->num_copies;  in prev_repair_mirror()
159 static void btrfs_repair_done(struct btrfs_failed_bio *fbio)  in btrfs_repair_done()  argument
161 	if (atomic_dec_and_test(&fbio->repair_count)) {  in btrfs_repair_done()
162 		btrfs_bio_end_io(fbio->bbio, fbio->bbio->bio.bi_status);  in btrfs_repair_done()
163 		mempool_free(fbio, &btrfs_failed_bio_pool);  in btrfs_repair_done()
170 	struct btrfs_failed_bio *fbio = repair_bbio->private;  in btrfs_end_repair_bio()  local
187 		mirror = next_repair_mirror(fbio, mirror);  in btrfs_end_repair_bio()
188 		if (mirror == fbio->bbio->mirror_num) {  in btrfs_end_repair_bio()
190 			fbio->bbio->bio.bi_status = BLK_STS_IOERR;  in btrfs_end_repair_bio()
199 		mirror = prev_repair_mirror(fbio, mirror);  in btrfs_end_repair_bio()
204 	} while (mirror != fbio->bbio->mirror_num);  in btrfs_end_repair_bio()
207 	btrfs_repair_done(fbio);  in btrfs_end_repair_bio()
221 						  struct btrfs_failed_bio *fbio)  in repair_one_sector()  argument
239 		return fbio;  in repair_one_sector()
242 	if (!fbio) {  in repair_one_sector()
243 		fbio = mempool_alloc(&btrfs_failed_bio_pool, GFP_NOFS);  in repair_one_sector()
244 		fbio->bbio = failed_bbio;  in repair_one_sector()
245 		fbio->num_copies = num_copies;  in repair_one_sector()
246 		atomic_set(&fbio->repair_count, 1);  in repair_one_sector()
249 	atomic_inc(&fbio->repair_count);  in repair_one_sector()
257 	btrfs_bio_init(repair_bbio, fs_info, NULL, fbio);  in repair_one_sector()
261 	mirror = next_repair_mirror(fbio, failed_bbio->mirror_num);  in repair_one_sector()
264 	return fbio;  in repair_one_sector()
274 	struct btrfs_failed_bio *fbio = NULL;  in btrfs_check_read_bio()  local
297 			fbio = repair_one_sector(bbio, offset, &bv, fbio);  in btrfs_check_read_bio()
306 	if (fbio)  in btrfs_check_read_bio()
307 		btrfs_repair_done(fbio);  in btrfs_check_read_bio()