mdk_rdev_t *tmp_dev;
unsigned long chunk;
sector_t block, rsect;
+ const int rw = bio_data_dir(bio);
- if (bio_data_dir(bio)==WRITE) {
- disk_stat_inc(mddev->gendisk, writes);
- disk_stat_add(mddev->gendisk, write_sectors, bio_sectors(bio));
- } else {
- disk_stat_inc(mddev->gendisk, reads);
- disk_stat_add(mddev->gendisk, read_sectors, bio_sectors(bio));
+ if (unlikely(bio_barrier(bio))) {
+ bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
+ return 0;
}
+ disk_stat_inc(mddev->gendisk, ios[rw]);
+ disk_stat_add(mddev->gendisk, sectors[rw], bio_sectors(bio));
+
chunk_size = mddev->chunk_size >> 10;
chunk_sects = mddev->chunk_size >> 9;
chunksize_bits = ffz(~chunk_size);