On Mon, Jan 30, 2023 at 04:54:14PM -0500, Stefan Hajnoczi wrote: > The blk_register_buf() API is an optimization hint that allows some > block drivers to avoid I/O buffer housekeeping or bounce buffers. > > Add an -r option to register the I/O buffer so that qemu-io can be used > to test the blk_register_buf() API. The next commit will add a test that > uses the new option. > > Signed-off-by: Stefan Hajnoczi <[email protected]> > --- > qemu-io-cmds.c | 167 +++++++++++++++++++++++++++++++++---------------- > 1 file changed, 114 insertions(+), 53 deletions(-)
Reviewed-by: Eric Blake <[email protected]> > @@ -1277,7 +1322,7 @@ static int writev_f(BlockBackend *blk, int argc, char > **argv) > int pattern = 0xcd; > QEMUIOVector qiov; > > - while ((c = getopt(argc, argv, "CfqP:")) != -1) { > + while ((c = getopt(argc, argv, "CfqrP:")) != -1) { This one is still odd - it is neither case-sensitive nor case-insensitive in order, because of P: coming after qr. > @@ -1476,7 +1529,7 @@ static int aio_read_f(BlockBackend *blk, int argc, char > **argv) > struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); > > ctx->blk = blk; > - while ((c = getopt(argc, argv, "CP:iqv")) != -1) { > + while ((c = getopt(argc, argv, "CP:iqrv")) != -1) { This one could at least argue that all capitals are before any lower-case, although case-insensitive would put i before P:. > @@ -1582,22 +1641,24 @@ static int aio_write_f(BlockBackend *blk, int argc, > char **argv) > int nr_iov, c; > int pattern = 0xcd; > struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); > - BdrvRequestFlags flags = 0; > > ctx->blk = blk; > - while ((c = getopt(argc, argv, "CfiqP:uz")) != -1) { > + while ((c = getopt(argc, argv, "CfiqrP:uz")) != -1) { Another odd spot where P: would fit better before qr. Those are still minor, so I don't care if you further touch them up. My R-b applies either way. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
