linux-kernel - Re: [PATCH v3] mm, hugetlb: skip irrelevant nodes in show_free

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Date:   Tue, 5 Jul 2022 15:54:25 -0700
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Gang Li <ligang.bdlg@...edance.com>
Cc:     Muchun Song <songmuchun@...edance.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] mm, hugetlb: skip irrelevant nodes in
 show_free_areas()

On 07/05/22 17:21, Gang Li wrote:
> show_free_areas() allows to filter out node specific data which is
> irrelevant to the allocation request. But hugetlb_show_meminfo() still
> shows hugetlb on all nodes, which is redundant and unnecessary.
> 
> Use show_mem_node_skip() to skip irrelevant nodes. And replace
> hugetlb_show_meminfo() with hugetlb_show_meminfo_node(nid).
> 
> Signed-off-by: Gang Li <ligang.bdlg@...edance.com>
> ---
> v3: move for_each_hstate() into hugetlb_show_meminfo_node().
> v2: replace hugetlb_show_meminfo() with hugetlb_show_meminfo_node(nid) to avoid
>     exporting show_mem_node_skip.
> ---
>  include/linux/hugetlb.h |  4 ++--
>  mm/hugetlb.c            | 18 ++++++++----------
>  mm/page_alloc.c         |  8 ++++++--
>  3 files changed, 16 insertions(+), 14 deletions(-)

Thanks.  That should make hugetlb information produced by show_free_areas
consistent with other node specific information.

Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>
-- 
Mike Kravetz