Re: [libvirt] [PATCHv4 03/15] qemu: improve efficiency of dd during snapshots

2011-03-15 Thread Eric Blake
On 03/10/2011 04:59 AM, Daniel P. Berrange wrote: On Wed, Mar 09, 2011 at 06:45:43PM -0700, Eric Blake wrote: POSIX states about dd: If the bs=expr operand is specified and no conversions other than sync, noerror, or notrunc are requested, the data returned from each input block shall be

Re: [libvirt] [PATCHv4 03/15] qemu: improve efficiency of dd during snapshots

2011-03-10 Thread Daniel P. Berrange
On Wed, Mar 09, 2011 at 06:45:43PM -0700, Eric Blake wrote: POSIX states about dd: If the bs=expr operand is specified and no conversions other than sync, noerror, or notrunc are requested, the data returned from each input block shall be written as a separate output block; if the read