Il 26/11/2013 09:56, Peter Lieven ha scritto: > Suggested-by: Paolo Bonzini <[email protected]> > Signed-off-by: Peter Lieven <[email protected]> > --- > qemu-img.c | 4 ++-- > qemu-img.texi | 2 +- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/qemu-img.c b/qemu-img.c > index cc7540f..6f1179b 100644 > --- a/qemu-img.c > +++ b/qemu-img.c > @@ -101,7 +101,7 @@ static void help(void) > " '-p' show progress of command (only certain commands)\n" > " '-pp' show progress of command in sectors (only convert > command)\n" > " '-q' use Quiet mode - do not print any output (except > errors)\n" > - " '-S' indicates the consecutive number of bytes (defaults to > 4k) that must\n" > + " '-S' indicates the consecutive number of bytes (defaults to > 64k) that must\n" > " contain only zeros for qemu-img to create a sparse image > during\n" > " conversion. If the number of bytes is 0, the source will > not be scanned for\n" > " unallocated or zero sectors, and the destination image > will always be\n" > @@ -1158,7 +1158,7 @@ static int img_convert(int argc, char **argv) > QEMUOptionParameter *out_baseimg_param; > char *options = NULL; > const char *snapshot_name = NULL; > - int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */ > + int min_sparse = 128; /* Need at least 64k of zeros for sparse detection > */ > bool quiet = false; > Error *local_err = NULL; > > diff --git a/qemu-img.texi b/qemu-img.texi > index cb4a3eb..c0e86ab 100644 > --- a/qemu-img.texi > +++ b/qemu-img.texi > @@ -195,7 +195,7 @@ Image conversion is also useful to get smaller image when > using a > growable format such as @code{qcow} or @code{cow}: the empty sectors > are detected and suppressed from the destination image. > > -@var{sparse_size} indicates the consecutive number of bytes (defaults to 4k) > +@var{sparse_size} indicates the consecutive number of bytes (defaults to 64k) > that must contain only zeros for qemu-img to create a sparse image during > conversion. If @var{sparse_size} is 0, the source will not be scanned for > unallocated or zero sectors, and the destination image will always be >
Reviewed-by: Paolo Bonzini <[email protected]>
