On 12/11/20 12:39 PM, Vladimir Sementsov-Ogievskiy wrote: > We are generally moving to int64_t for both offset and bytes parameters > on all io paths. > > Main motivation is realization of 64-bit write_zeroes operation for > fast zeroing large disk chunks, up to the whole disk. > > We chose signed type, to be consistent with off_t (which is signed) and > with possibility for signed return type (where negative value means > error). > > All requests in block/io must not overflow BDRV_MAX_LENGTH, all > external users of BdrvTrackedRequest already have corresponding > assertions, so we are safe. Add some assertions still. > > Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> > --- > include/block/block_int.h | 4 ++-- > block/io.c | 14 +++++++++----- > 2 files changed, 11 insertions(+), 7 deletions(-) >
Reviewed-by: Eric Blake <ebl...@redhat.com> -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org
