From: Dave Hansen <dave.hansen@intel.com>
To: Baolin Wang <baolin.wang@linux.alibaba.com>, akpm@linux-foundation.org
Cc: rppt@linux.ibm.com, willy@infradead.org, will@kernel.org,
aneesh.kumar@linux.ibm.com, npiggin@gmail.com,
peterz@infradead.org, catalin.marinas@arm.com,
chenhuacai@kernel.org, kernel@xen0n.name,
tsbogend@alpha.franken.de, dave.hansen@linux.intel.com,
luto@kernel.org, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, hpa@zytor.com, arnd@arndb.de, guoren@kernel.org,
monstr@monstr.eu, jonas@southpole.se,
stefan.kristiansson@saunalahti.fi, shorne@gmail.com,
x86@kernel.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev,
linux-mips@vger.kernel.org, linux-csky@vger.kernel.org,
openrisc@lists.librecores.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] Add PUD and kernel PTE level pagetable account
Date: Wed, 6 Jul 2022 08:48:07 -0700 [thread overview]
Message-ID: <d2d58cc2-7e6d-aa2d-3096-a500ce321494@intel.com> (raw)
In-Reply-To: <cover.1657096412.git.baolin.wang@linux.alibaba.com>
On 7/6/22 01:59, Baolin Wang wrote:
> Now we will miss to account the PUD level pagetable and kernel PTE level
> pagetable, as well as missing to set the PG_table flags for these pagetable
> pages, which will get an inaccurate pagetable accounting, and miss
> PageTable() validation in some cases. So this patch set introduces new
> helpers to help to account PUD and kernel PTE pagetable pages.
Could you explain the motivation for this series a bit more? Is there a
real-world problem that this fixes?
next prev parent reply other threads:[~2022-07-06 15:52 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-06 8:59 Baolin Wang
2022-07-06 8:59 ` [PATCH 1/3] mm: Factor out the pagetable pages account into new helper function Baolin Wang
2022-07-06 8:59 ` [PATCH 2/3] mm: Add PUD level pagetable account Baolin Wang
2022-07-06 8:59 ` [PATCH 3/3] mm: Add kernel PTE level pagetable pages account Baolin Wang
2022-07-06 15:45 ` Matthew Wilcox
2022-07-07 11:45 ` Baolin Wang
2022-07-06 15:48 ` Dave Hansen [this message]
2022-07-07 11:32 ` [PATCH 0/3] Add PUD and kernel PTE level pagetable account Baolin Wang
2022-07-07 14:44 ` Dave Hansen
2022-07-10 11:19 ` Baolin Wang
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