On 2019/5/30 下午8:04, David Sterba wrote:
> On Tue, May 28, 2019 at 04:21:54PM +0800, Qu Wenruo wrote:
>> Normally the range->len is set to default value (U64_MAX), but when it's
>> not default value, we should check if the range overflows.
>>
>> And if overflows, return -EINVAL before doing anything.
>>
>> Signed-off-by: Qu Wenruo <wqu@suse.com>
> 
> The range support of TRIM will be reverted so this patch won't be
> needed.

No, this patch is an independent one.

The objective is to behavior the same when @range->start + @range->len
overflows when @range->len is not default value (U64MAX).

With the trim range patch reverted, we should still detect overflow and
return -EINVAL to meet the new generic/260 check.

So please still include this patch.

Thanks,
Qu