4942 static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,  in __btrfs_map_block()  argument
5020 	if (rw & REQ_DISCARD) {  in __btrfs_map_block()
5033 		    (rw & REQ_WRITE)) {  in __btrfs_map_block()
5056 	    !(rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)) &&  in __btrfs_map_block()
5146 		if (rw & REQ_DISCARD)  in __btrfs_map_block()
5151 		if (!(rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)))  in __btrfs_map_block()
5154 		if (rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS))  in __btrfs_map_block()
5167 		if (rw & (REQ_WRITE | REQ_DISCARD | REQ_GET_READ_MIRRORS)) {  in __btrfs_map_block()
5181 		if (rw & (REQ_WRITE | REQ_GET_READ_MIRRORS))  in __btrfs_map_block()
5183 		else if (rw & REQ_DISCARD)  in __btrfs_map_block()
5201 		    ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||  in __btrfs_map_block()
5229 			if (!(rw & (REQ_WRITE | REQ_DISCARD |  in __btrfs_map_block()
5247 		if (rw & (REQ_WRITE | REQ_DISCARD))  in __btrfs_map_block()
5249 		if (rw & REQ_GET_READ_MIRRORS)  in __btrfs_map_block()
5264 	    need_raid_map && ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||  in __btrfs_map_block()
5289 	if (rw & REQ_DISCARD) {  in __btrfs_map_block()
5369 	if (rw & (REQ_WRITE | REQ_GET_READ_MIRRORS))  in __btrfs_map_block()
5376 	if (dev_replace_is_ongoing && (rw & (REQ_WRITE | REQ_DISCARD)) &&  in __btrfs_map_block()
5411 	} else if (dev_replace_is_ongoing && (rw & REQ_GET_READ_MIRRORS) &&  in __btrfs_map_block()
5484 int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,  in btrfs_map_block()  argument
5488 	return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret,  in btrfs_map_block()
5493 int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int rw,  in btrfs_map_sblock()  argument
5498 	return __btrfs_map_block(fs_info, rw, logical, length, bbio_ret,  in btrfs_map_sblock()
5669 					int rw, struct bio *bio)  in btrfs_schedule_bio()  argument
5680 	if (!(rw & REQ_WRITE)) {  in btrfs_schedule_bio()
5682 		btrfsic_submit_bio(rw, bio);  in btrfs_schedule_bio()
5696 	bio->bi_rw |= rw;  in btrfs_schedule_bio()
5750 			      int rw, int async)  in submit_stripe_bio()  argument
5765 			 "(%s id %llu), size=%u\n", rw,  in submit_stripe_bio()
5776 		btrfs_schedule_bio(root, dev, rw, bio);  in submit_stripe_bio()
5778 		btrfsic_submit_bio(rw, bio);  in submit_stripe_bio()
5783 			      int dev_nr, int rw, int async)  in breakup_stripe_bio()  argument
5802 					  rw, async);  in breakup_stripe_bio()
5809 	submit_stripe_bio(root, bbio, bio, physical, dev_nr, rw, async);  in breakup_stripe_bio()
5829 int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,  in btrfs_map_bio()  argument
5846 	ret = __btrfs_map_block(root->fs_info, rw, logical, &map_length, &bbio,  in btrfs_map_bio()
5863 		if (rw & WRITE) {  in btrfs_map_bio()
5882 		if (!dev || !dev->bdev || (rw & WRITE && !dev->writeable)) {  in btrfs_map_bio()
5894 						 dev_nr, rw, async_submit);  in btrfs_map_bio()
5908 				  bbio->stripes[dev_nr].physical, dev_nr, rw,  in btrfs_map_bio()