linux-kernel - Re: [PATCH v3 4/7] hugetlb: pass *next_nid_to_alloc directly to for_each_node_mask_to

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Date: Fri, 12 Jan 2024 16:07:54 +0800
From: Gang Li <gang.li@...ux.dev>
To: Tim Chen <tim.c.chen@...ux.intel.com>,
 David Hildenbrand <david@...hat.com>, David Rientjes <rientjes@...gle.com>,
 Mike Kravetz <mike.kravetz@...cle.com>, Muchun Song <muchun.song@...ux.dev>,
 Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
 ligang.bdlg@...edance.com
Subject: Re: [PATCH v3 4/7] hugetlb: pass *next_nid_to_alloc directly to
 for_each_node_mask_to_alloc

On 2024/1/12 06:21, Tim Chen wrote:
> On Tue, 2024-01-02 at 21:12 +0800, Gang Li wrote:
>> The parallelization of hugetlb allocation leads to errors when sharing
>> h->next_nid_to_alloc across different threads. To address this, it's
> 
> Suggest you say
> With parallelization of hugetlb allocation across different threads,
> each thread works on a differnet node to allocate pages from, instead
> of all allocating from a common node h->next_nid_to_alloc.  To address this, it's
> 
>> necessary to assign a separate next_nid_to_alloc for each thread.

LGTM, thanks.