Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | NeilBrown <> | Date | Tue, 31 Oct 2006 17:01:14 +1100 | Subject | [PATCH 006 of 6] md: Enable bypassing cache for reads. |
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Call the chunk_aligned_read where appropriate.
cc: "Raz Ben-Jehuda(caro)" <raziebe@gmail.com> Signed-off-by: Neil Brown <neilb@suse.de>
### Diffstat output ./drivers/md/raid5.c | 5 +++++ 1 file changed, 5 insertions(+)
diff .prev/drivers/md/raid5.c ./drivers/md/raid5.c --- .prev/drivers/md/raid5.c 2006-10-31 16:42:30.000000000 +1100 +++ ./drivers/md/raid5.c 2006-10-31 16:47:53.000000000 +1100 @@ -2798,6 +2798,11 @@ static int make_request(request_queue_t disk_stat_inc(mddev->gendisk, ios[rw]); disk_stat_add(mddev->gendisk, sectors[rw], bio_sectors(bi)); + if ( bio_data_dir(bi) == READ && + mddev->reshape_position == MaxSector && + chunk_aligned_read(q,bi)) + return 0; + logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1); last_sector = bi->bi_sector + (bi->bi_size>>9); bi->bi_next = NULL; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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