Commit 52488615 authored by Raz Ben-Jehuda(caro)'s avatar Raz Ben-Jehuda(caro) Committed by Linus Torvalds

[PATCH] md: enable bypassing cache for reads

Call the chunk_aligned_read where appropriate.
Signed-off-by: default avatarNeil Brown <neilb@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 46031f9a
...@@ -2808,6 +2808,11 @@ static int make_request(request_queue_t *q, struct bio * bi) ...@@ -2808,6 +2808,11 @@ static int make_request(request_queue_t *q, struct bio * bi)
disk_stat_inc(mddev->gendisk, ios[rw]); disk_stat_inc(mddev->gendisk, ios[rw]);
disk_stat_add(mddev->gendisk, sectors[rw], bio_sectors(bi)); 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); logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
last_sector = bi->bi_sector + (bi->bi_size>>9); last_sector = bi->bi_sector + (bi->bi_size>>9);
bi->bi_next = NULL; bi->bi_next = NULL;
......
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