linux-kernel - Re: [PATCH] mm: Strictly check vmstat

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Message-ID: <515387b8-3231-4b99-886f-62425575f912@redhat.com>
Date: Fri, 30 May 2025 11:50:00 +0200
From: David Hildenbrand <david@...hat.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
 Andrew Morton <akpm@...ux-foundation.org>
Cc: lorenzo.stoakes@...cle.com, Liam.Howlett@...cle.com, vbabka@...e.cz,
 rppt@...nel.org, surenb@...gle.com, mhocko@...e.com, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, Konstantin Khlebnikov <koct9i@...il.com>
Subject: Re: [PATCH] mm: Strictly check vmstat_text array size

On 29.05.25 13:05, Kirill A. Shutemov wrote:
> The /proc/vmstat displays counters from various sources. It is easy to
> forget to add or remove a label when a new counter is added or removed.
> 
> There is a BUILD_BUG_ON() function that catches missing labels. However,
> for some reason, it ignores extra labels.
> 
> Let's make the check strict. This would help to catch issues when
> a counter is removed.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> Cc: Konstantin Khlebnikov <koct9i@...il.com>
> ---

Reviewed-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb