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Date: Tue, 16 Apr 2024 10:16:23 +0200
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Subject: Re: [PATCH v6 4/4] mm: correct the docs for thp_fault_alloc and
 thp_fault_fallback
To: Barry Song <21cnbao@gmail.com>, akpm@linux-foundation.org,
 linux-mm@kvack.org
Cc: cerasuolodomenico@gmail.com, chrisl@kernel.org, kasong@tencent.com,
 linux-kernel@vger.kernel.org, peterx@redhat.com, ryan.roberts@arm.com,
 surenb@google.com, v-songbaohua@oppo.com, willy@infradead.org,
 yosryahmed@google.com, yuzhao@google.com, corbet@lwn.net
References: <20240412114858.407208-1-21cnbao@gmail.com>
 <20240412114858.407208-5-21cnbao@gmail.com>
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From: David Hildenbrand <david@redhat.com>
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On 12.04.24 13:48, Barry Song wrote:
> From: Barry Song <v-songbaohua@oppo.com>
> 
> The documentation does not align with the code. In
> __do_huge_pmd_anonymous_page(), THP_FAULT_FALLBACK is incremented when
> mem_cgroup_charge() fails, despite the allocation succeeding, whereas
> THP_FAULT_ALLOC is only incremented after a successful charge.
> 
> Signed-off-by: Barry Song <v-songbaohua@oppo.com>
> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
> Cc: Chris Li <chrisl@kernel.org>
> Cc: David Hildenbrand <david@redhat.com>
> Cc: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
> Cc: Kairui Song <kasong@tencent.com>
> Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
> Cc: Peter Xu <peterx@redhat.com>
> Cc: Ryan Roberts <ryan.roberts@arm.com>
> Cc: Suren Baghdasaryan <surenb@google.com>
> Cc: Yosry Ahmed <yosryahmed@google.com>
> Cc: Yu Zhao <yuzhao@google.com>
> Cc: Jonathan Corbet <corbet@lwn.net>
> ---

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

-- 
Cheers,

David / dhildenb