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SubjectRe: [PATCH 01/14] aoe: for performance support larger packet payloads
On Fri, 17 Aug 2012 21:18:37 -0400
Ed Cashin <ecashin@coraid.com> wrote:

> --- a/drivers/block/aoe/aoeblk.c
> +++ b/drivers/block/aoe/aoeblk.c
> @@ -279,6 +279,9 @@ aoeblk_gdalloc(void *vp)
> if (bdi_init(&d->blkq->backing_dev_info))
> goto err_blkq;
> spin_lock_irqsave(&d->lock, flags);
> + blk_queue_max_hw_sectors(d->blkq, BLK_DEF_MAX_SECTORS);
> + d->blkq->backing_dev_info.ra_pages = BLK_DEF_MAX_SECTORS * 1024;
> + d->blkq->backing_dev_info.ra_pages /= PAGE_CACHE_SIZE;

This seems a bit abusive of BLK_DEF_MAX_SECTORS, which is in units of
512-byte sectors. (BLK_DEF_MAX_SECTORS * 512)/PAGE_CACHE_SIZE would
make sense.




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