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authorChristoph Hellwig <hch@lst.de>2020-09-24 08:51:31 +0200
committerJens Axboe <axboe@kernel.dk>2020-09-24 13:43:38 -0600
commit9e82d35b95e55aa50d264caee64a17840e3981b7 (patch)
tree0c36989bb9d36309ff329e81cbf3484d8fcfad91 /drivers/block/aoe
parent5d4ce78b254cde8aaeb829420c3f15d3606ad411 (diff)
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: 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>
Diffstat (limited to 'drivers/block/aoe')
-rw-r--r--drivers/block/aoe/aoeblk.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 5ca7216e9e01..d8cfc233e64b 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -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;