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aoe: set an optimal I/O size

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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: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-09-24 08:51:31 +02:00 committed by Jens Axboe
parent 5d4ce78b25
commit 9e82d35b95
1 changed files with 2 additions and 2 deletions
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4
drivers/block/aoe/aoeblk.c
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@ -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;