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SubjectRe: [PATCH] mm/hugetlb.c: remove dead store in demote_size_show()
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On 10/3/21 6:54 AM, Matthew Wilcox wrote:
> On Sun, Oct 03, 2021 at 06:41:13PM +0700, Nghia Le wrote:
>> {
>> struct hstate *h;
>> - unsigned long demote_size;
>> int nid;
>>
>> h = kobj_to_hstate(kobj, &nid);
>> - demote_size = h->demote_order;
>>
>> return sysfs_emit(buf, "%lukB\n",
>> (unsigned long)(PAGE_SIZE << h->demote_order) / SZ_1K);
>
> I'd suggest this function would look better written as:
>
> int nid;
> struct hstate *h = kobj_to_hstate(kobj, &nid);
> unsigned long demote_size = (PAGE_SIZE << h->demote_order) / SZ_1K;
>
> return sysfs_emit(buf, "%lukB\n", demote_size);
>

Thank you Nghia Le for spotting this, and thank you Matthew for the
suggestion.

This is still just in Andrew's tree and subject to modification before
the next merge window. I am still expecting additional comments on the
series.

If another version of the series is needed, I will include Matthew's
suggestion. If not, I will ask Andrew how he would prefer to fold in
the changes.
--
Mike Kravetz

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