On 9/17/12 8:55 AM, David Ahern wrote:
2. the rwtop.pl script is not handling negative return values ($ret < 0)
properly -- the '$ret > 0' check is succeeding even though $ret is
negative (e.g., -EAGAIN) leading to astronomical read values

I think perl is treating $ret as an unsigned integer.

Again, I know little about perl, but this change to ./scripts/perl/rwtop.pl makes it behave properly:

    my $n = sprintf("%d", $ret);

    if ($n > 0) {
    ...

David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to