Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-17 Thread Stefan Hajnoczi
On Thu, Nov 17, 2011 at 11:34 AM, Chun Yan Liu wrote: > Thanks for your suggestions. > > For the usage "qemu-nbd -f disk.img", adding some code could implement it. I > think it could be like "losetup -f" usage. > > #qemu-nbd -f > > show the first free nbd device at this moment. > > user can choose

Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-17 Thread Chun Yan Liu
Thanks for your suggestions. For the usage "qemu-nbd -f disk.img", adding some code could implement it. I think it could be like "losetup -f" usage. #qemu-nbd -f show the first free nbd device at this moment. user can choose to issue "qemu-nbd -c THAT_DEVICE disk.img" or not. #qemu-nbd -f d

Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-17 Thread Stefan Hajnoczi
On Wed, Nov 16, 2011 at 5:23 PM, Ian Campbell wrote: > On Wed, 2011-11-16 at 10:34 +, Stefan Hajnoczi wrote: >> On Wed, Nov 16, 2011 at 6:57 AM, Chunyan Liu wrote: >> > Currently qemu-nbd does not support finding free nbd device for users like >> > "losetup -f" and issuing "qemu-nbd -c /dev/n

Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-16 Thread Zhi Yong Wu
On Wed, Nov 16, 2011 at 10:27 PM, Stefan Hajnoczi wrote: > On Wed, Nov 16, 2011 at 11:49 AM, Zhi Yong Wu wrote: >> On Wed, Nov 16, 2011 at 6:34 PM, Stefan Hajnoczi wrote: >>> On Wed, Nov 16, 2011 at 6:57 AM, Chunyan Liu wrote: Currently qemu-nbd does not support finding free nbd device for

Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-16 Thread Ian Campbell
On Wed, 2011-11-16 at 10:34 +, Stefan Hajnoczi wrote: > On Wed, Nov 16, 2011 at 6:57 AM, Chunyan Liu wrote: > > Currently qemu-nbd does not support finding free nbd device for users like > > "losetup -f" and issuing "qemu-nbd -c /dev/nbdX disk.img" won't report error > > message when /dev/nbd

Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-16 Thread Stefan Hajnoczi
On Wed, Nov 16, 2011 at 11:49 AM, Zhi Yong Wu wrote: > On Wed, Nov 16, 2011 at 6:34 PM, Stefan Hajnoczi wrote: >> On Wed, Nov 16, 2011 at 6:57 AM, Chunyan Liu wrote: >>> Currently qemu-nbd does not support finding free nbd device for users like >>> "losetup -f" and issuing "qemu-nbd -c /dev/nbdX

Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-16 Thread Zhi Yong Wu
On Wed, Nov 16, 2011 at 6:34 PM, Stefan Hajnoczi wrote: > On Wed, Nov 16, 2011 at 6:57 AM, Chunyan Liu wrote: >> Currently qemu-nbd does not support finding free nbd device for users like >> "losetup -f" and issuing "qemu-nbd -c /dev/nbdX disk.img" won't report error >> message when /dev/nbd is a

Re: [Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-16 Thread Stefan Hajnoczi
On Wed, Nov 16, 2011 at 6:57 AM, Chunyan Liu wrote: > Currently qemu-nbd does not support finding free nbd device for users like > "losetup -f" and issuing "qemu-nbd -c /dev/nbdX disk.img" won't report error > message when /dev/nbd is already in use. It makes things a little confusing. > This patc

[Qemu-devel] [PATCH] Add -f option to qemu-nbd

2011-11-15 Thread Chunyan Liu
Currently qemu-nbd does not support finding free nbd device for users like "losetup -f" and issuing "qemu-nbd -c /dev/nbdX disk.img" won't report error message when /dev/nbd is already in use. It makes things a little confusing. This patch adds "-f" option to qemu-nbd to support finding a free nbd