linux-kernel - Re: [PATCH] virtio_blk: Add help function to format mass of disks

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Message-ID: <4F84DE33.8050606@cn.fujitsu.com>
Date:	Wed, 11 Apr 2012 09:28:19 +0800
From:	Ren Mingxin <renmx@...fujitsu.com>
To:	Avi Kivity <avi@...hat.com>
CC:	mst@...hat.com, rusty@...tcorp.com.au, axboe@...nel.dk,
	tj@...nel.org, James.Bottomley@...senPartnership.com,
	asamymuthupa@...ron.com, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org, kvm@...r.kernel.org,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH] virtio_blk: Add help function to format mass of disks

  On 04/10/2012 09:16 PM, Avi Kivity wrote:
> On 04/10/2012 10:28 AM, Ren Mingxin wrote:
>> The current virtio block's naming algorithm just supports 18278
>> (26^3 + 26^2 + 26) disks. If there are mass of virtio blocks,
>> there will be disks with the same name.
>>
>> Based on commit 3e1a7ff8a0a7b948f2684930166954f9e8e776fe, I add
>> function "virtblk_name_format()" for virtio block to support mass
>> of disks naming.
>>
>> Signed-off-by: Ren Mingxin<renmx@...fujitsu.com>
>> ---
>>   drivers/block/virtio_blk.c |   38 ++++++++++++++++++++++++++------------
>>   1 files changed, 26 insertions(+), 12 deletions(-)
>>
>> diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
>> index c4a60ba..86516c8 100644
>> --- a/drivers/block/virtio_blk.c
>> +++ b/drivers/block/virtio_blk.c
>> @@ -374,6 +374,31 @@ static int init_vq(struct virtio_blk *vblk)
>>   	return err;
>>   }
>>
>> +static int virtblk_name_format(char *prefix, int index, char *buf, int buflen)
>> +{
>> +	const int base = 'z' - 'a' + 1;
>> +	char *begin = buf + strlen(prefix);
>> +	char *begin = buf + strlen(prefix);
> Duplicate line.
>

Oh, obvious missed :-(

-- 
Thanks,
Ren

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