Commit 9e82d35b authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

aoe: set an optimal I/O size 



aoe forces a larger readahead size, but any reason to do larger I/O
is not limited to readahead.  Also set the optimal I/O size, and
remove the local constants in favor of just using SZ_2G.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Reviewed-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 5d4ce78b

drivers/block/aoe/aoeblk.c

+2 −2
Original line number Diff line number Diff line
@@ -347,7 +347,6 @@ aoeblk_gdalloc(void *vp) 
	mempool_t *mp;

	struct request_queue *q;

	struct blk_mq_tag_set *set;

	enum { KB = 1024, MB = KB * KB, READ_AHEAD = 2 * MB, };

	ulong flags;

	int late = 0;

	int err;
@@ -407,7 +406,8 @@ aoeblk_gdalloc(void *vp) 
	WARN_ON(d->gd);

	WARN_ON(d->flags & DEVFL_UP);

	blk_queue_max_hw_sectors(q, BLK_DEF_MAX_SECTORS);

	q->backing_dev_info->ra_pages = READ_AHEAD / PAGE_SIZE;

	q->backing_dev_info->ra_pages = SZ_2M / PAGE_SIZE;

	blk_queue_io_opt(q, SZ_2M);

	d->bufpool = mp;

	d->blkq = gd->queue = q;

	q->queuedata = d;