linux-kernel - Re: [PATCH 1/3] xen-blkfront: fix places not updated after introducing 64KB page granularity

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Message-ID: <5799CA75.6000701@oracle.com>
Date:	Thu, 28 Jul 2016 17:03:49 +0800
From:	Bob Liu <bob.liu@...cle.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
	roger.pau@...rix.com
Subject: Re: [PATCH 1/3] xen-blkfront: fix places not updated after introducing
 64KB page granularity


On 07/28/2016 09:19 AM, Konrad Rzeszutek Wilk wrote:
> On Tue, Jul 26, 2016 at 01:19:35PM +0800, Bob Liu wrote:
>> Two places didn't get updated when 64KB page granularity was introduced, this
>> patch fix them.
>>
>> Signed-off-by: Bob Liu <bob.liu@...cle.com>
>> Acked-by: Roger Pau Monné <roger.pau@...rix.com>
> 
> Could you rebase this on xen-tip/for-linus-4.8 pls?

Done, sent the v2 for you to pick up.

> 
>> ---
>>  drivers/block/xen-blkfront.c |    4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
>> index fcc5b4e..032fc94 100644
>> --- a/drivers/block/xen-blkfront.c
>> +++ b/drivers/block/xen-blkfront.c
>> @@ -1321,7 +1321,7 @@ free_shadow:
>>  			rinfo->ring_ref[i] = GRANT_INVALID_REF;
>>  		}
>>  	}
>> -	free_pages((unsigned long)rinfo->ring.sring, get_order(info->nr_ring_pages * PAGE_SIZE));
>> +	free_pages((unsigned long)rinfo->ring.sring, get_order(info->nr_ring_pages * XEN_PAGE_SIZE));
>>  	rinfo->ring.sring = NULL;
>>  
>>  	if (rinfo->irq)
>> @@ -2013,7 +2013,7 @@ static int blkif_recover(struct blkfront_info *info)
>>  
>>  	blkfront_gather_backend_features(info);
>>  	segs = info->max_indirect_segments ? : BLKIF_MAX_SEGMENTS_PER_REQUEST;
>> -	blk_queue_max_segments(info->rq, segs);
>> +	blk_queue_max_segments(info->rq, segs / GRANTS_PER_PSEG);
>>  
>>  	for (r_index = 0; r_index < info->nr_rings; r_index++) {
>>  		struct blkfront_ring_info *rinfo = &info->rinfo[r_index];
>> -- 
>> 1.7.10.4
>>