137 static int next_repair_mirror(struct btrfs_failed_bio *fbio, int cur_mirror)  in next_repair_mirror()  argument
139 	if (cur_mirror == fbio->num_copies)  in next_repair_mirror()
140 		return cur_mirror + 1 - fbio->num_copies;  in next_repair_mirror()
144 static int prev_repair_mirror(struct btrfs_failed_bio *fbio, int cur_mirror)  in prev_repair_mirror()  argument
147 		return fbio->num_copies;  in prev_repair_mirror()
151 static void btrfs_repair_done(struct btrfs_failed_bio *fbio)  in btrfs_repair_done()  argument
153 	if (atomic_dec_and_test(&fbio->repair_count)) {  in btrfs_repair_done()
154 		btrfs_bio_end_io(fbio->bbio, fbio->bbio->bio.bi_status);  in btrfs_repair_done()
155 		mempool_free(fbio, &btrfs_failed_bio_pool);  in btrfs_repair_done()
162 	struct btrfs_failed_bio *fbio = repair_bbio->private;  in btrfs_end_repair_bio()  local
179 		mirror = next_repair_mirror(fbio, mirror);  in btrfs_end_repair_bio()
180 		if (mirror == fbio->bbio->mirror_num) {  in btrfs_end_repair_bio()
182 			fbio->bbio->bio.bi_status = BLK_STS_IOERR;  in btrfs_end_repair_bio()
191 		mirror = prev_repair_mirror(fbio, mirror);  in btrfs_end_repair_bio()
196 	} while (mirror != fbio->bbio->mirror_num);  in btrfs_end_repair_bio()
199 	btrfs_repair_done(fbio);  in btrfs_end_repair_bio()
213 						  struct btrfs_failed_bio *fbio)  in repair_one_sector()  argument
231 		return fbio;  in repair_one_sector()
234 	if (!fbio) {  in repair_one_sector()
235 		fbio = mempool_alloc(&btrfs_failed_bio_pool, GFP_NOFS);  in repair_one_sector()
236 		fbio->bbio = failed_bbio;  in repair_one_sector()
237 		fbio->num_copies = num_copies;  in repair_one_sector()
238 		atomic_set(&fbio->repair_count, 1);  in repair_one_sector()
241 	atomic_inc(&fbio->repair_count);  in repair_one_sector()
249 	btrfs_bio_init(repair_bbio, fs_info, NULL, fbio);  in repair_one_sector()
253 	mirror = next_repair_mirror(fbio, failed_bbio->mirror_num);  in repair_one_sector()
256 	return fbio;  in repair_one_sector()
266 	struct btrfs_failed_bio *fbio = NULL;  in btrfs_check_read_bio()  local
289 			fbio = repair_one_sector(bbio, offset, &bv, fbio);  in btrfs_check_read_bio()
298 	if (fbio)  in btrfs_check_read_bio()
299 		btrfs_repair_done(fbio);  in btrfs_check_read_bio()