From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ren Mingxin Subject: Re: [PATCH] virtio_blk: Add help function to format mass of disks Date: Wed, 11 Apr 2012 09:28:19 +0800 Message-ID: <4F84DE33.8050606@cn.fujitsu.com> References: <1334042885-8330-1-git-send-email-renmx@cn.fujitsu.com> <4F84329A.60703@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Cc: axboe@kernel.dk, kvm@vger.kernel.org, linux-scsi@vger.kernel.org, mst@redhat.com, asamymuthupa@micron.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, James.Bottomley@HansenPartnership.com, tj@kernel.org To: Avi Kivity Return-path: In-Reply-To: <4F84329A.60703@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org List-Id: kvm.vger.kernel.org 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 >> --- >> 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