Re: [PATCH 4/4] virtio_blk: use disk_name_format() to support mass of disks naming

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On Fri, Mar 30, 2012 at 08:26:06AM -0700, Tejun Heo wrote:
> On Fri, Mar 30, 2012 at 05:53:52PM +0800, Ren Mingxin wrote:
> >  The current virtblk's naming algorithm only supports 263  disks.
> > If there are mass of virtblks(exceeding 263), there will be disks
> > with the same name.
> > 
> > By renaming "sd_format_disk_name()" to "disk_name_format()"
> > and moving it into block core, virtio_blk can use this function to
> > support mass of disks.
> > 
> > Signed-off-by: Ren Mingxin <renmx@xxxxxxxxxxxxxx>
> 
> I guess it's already way too late but why couldn't they have been
> named vdD-P where both D and P are integers denoting disk number and

So, if a device name ends in digit the partition code adds delimiter
'p' automatically and this is already in use by md.  So, partitioned
md devices are named mdDpP where D and P are base 10 number indicating
the sequence like md12p4.  So, let's please add comment that new
drivers should name their devices PREFIX%d where the sequence number
can be allocated by ida.

Thanks.

-- 
tejun
_______________________________________________
Virtualization mailing list
Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linuxfoundation.org/mailman/listinfo/virtualization


[KVM Development]     [Libvirt Development]     [Libvirt Users]     [CentOS Virtualization]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Photo]     [Yosemite]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]     [Find Someone Nice]     [Video 4 Linux]     [Linux Resources]
Add to Google Powered by Linux