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From: Muchun Song <muchun.song@linux.dev>
To: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Arnd Bergmann <arnd@arndb.de>,
	david@redhat.com, willy@infradead.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH 2/2] mm: pgtable: remove unnecessary split ptlock for kernel PMD page
Date: Fri, 2 Feb 2024 11:16:02 +0800	[thread overview]
Message-ID: <996AA3FE-47DD-408E-960C-EB805DBE8EFE@linux.dev> (raw)
In-Reply-To: <63f0b3d2f9124ae5076963fb5505bd36daba0393.1706774109.git.zhengqi.arch@bytedance.com>



> On Feb 1, 2024, at 16:05, Qi Zheng <zhengqi.arch@bytedance.com> wrote:
> 
> For kernel PMD entry, we use init_mm.page_table_lock to protect it, so
> there is no need to allocate and initialize the split ptlock for kernel
> PMD page.
> 
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>

Reviewed-by: Muchun Song <muchun.song@linux.dev>

Thanks.


  reply	other threads:[~2024-02-02  3:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-01  8:05 [PATCH 1/2] mm: pgtable: add missing flag and statistics for kernel PTE page Qi Zheng
2024-02-01  8:05 ` [PATCH 2/2] mm: pgtable: remove unnecessary split ptlock for kernel PMD page Qi Zheng
2024-02-02  3:16   ` Muchun Song [this message]
2024-02-04 18:54   ` Matthew Wilcox
2024-02-05  2:14     ` Qi Zheng
2024-02-02  2:47 ` [PATCH 1/2] mm: pgtable: add missing flag and statistics for kernel PTE page Muchun Song
2024-02-04 10:58 ` Mike Rapoport
2024-02-04 11:39   ` Qi Zheng
2024-02-04 12:15     ` Mike Rapoport
2024-02-04 16:26       ` Qi Zheng
2024-02-04 18:51 ` Matthew Wilcox
2024-02-05  2:05   ` Qi Zheng

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