On Fri, Dec 18, 2015 at 01:08:43PM +0800, Stefan Hajnoczi wrote: > On Wed, Dec 16, 2015 at 11:57:33AM +0100, Paolo Bonzini wrote: > > memcpy can take a large amount of time for small reads and writes. > > For virtio it is a common case that the first iovec can satisfy the > > whole read or write. In that case, and if bytes is a constant to > > avoid excessive growth of code, inline the first iteration > > into the caller. > > > > Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> > > --- > > include/qemu/iov.h | 32 ++++++++++++++++++++++++++++---- > > util/iov.c | 8 ++++---- > > 2 files changed, 32 insertions(+), 8 deletions(-) > > Thanks, applied to my block-next tree: > https://github.com/stefanha/qemu/commits/block-next
Paolo, I've dropped this from block-next because it breaks tests/test-iov. Please resolve the failure and submit a new patch. Thanks, Stefan
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