[Qemu-devel] [PATCH v4 4/9] block: Introduce buf register API

2018-01-10 Thread Fam Zheng
Allow block driver to map and unmap a buffer for later I/O, as a performance hint. Signed-off-by: Fam Zheng --- block/block-backend.c | 10 ++ block/io.c | 24 include/block/block.h | 11 ++- include/block/block_int.h

Re: [Qemu-devel] [PATCH v4 4/9] block: Introduce buf register API

2018-01-10 Thread Stefan Hajnoczi
On Wed, Jan 10, 2018 at 05:18:41PM +0800, Fam Zheng wrote: > Allow block driver to map and unmap a buffer for later I/O, as a performance > hint. > > Signed-off-by: Fam Zheng > --- > block/block-backend.c | 10 ++ > block/io.c | 24 >