static int
discard_f(int argc, char **argv)
{
struct timeval t1, t2;
int Cflag = 0, qflag = 0;
int c, ret;
int64_t offset;
int count;
while ((c = getopt(argc, argv, "Cq")) != EOF) {
switch (c) {
case 'C':
Cflag = 1;
break;
case 'q':
qflag = 1;
break;
default:
return command_usage(&discard_cmd);
}
}
if (optind != argc - 2) {
return command_usage(&discard_cmd);
}
offset = cvtnum(argv[optind]);
if (offset < 0) {
printf("non-numeric length argument -- %s\n", argv[optind]);
return 0;
}
optind++;
count = cvtnum(argv[optind]);
if (count < 0) {
printf("non-numeric length argument -- %s\n", argv[optind]);
return 0;
}
gettimeofday(&t1, NULL);
ret = bdrv_discard(bs, offset, count);
gettimeofday(&t2, NULL);
if (ret < 0) {
printf("discard failed: %s\n", strerror(-ret));
goto out;
}
/* Finally, report back -- -C gives a parsable format */
if (!qflag) {
t2 = tsub(t2, t1);
print_report("discard", &t2, offset, count, count, 1, Cflag);
}
out:
return 0;
}
static int raw_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors)
{
return bdrv_discard(bs->file, sector_num, nb_sectors);
}