Re: [PATCH 0/3] Add PUD and kernel PTE level pagetable account
From: Baolin Wang <baolin.wang@linux.alibaba.com>
Date: 2022-07-07 11:32:55
Also in:
linux-arch, linux-mips, linux-mm, lkml, loongarch
On 7/6/2022 11:48 PM, Dave Hansen wrote:
On 7/6/22 01:59, Baolin Wang wrote:quoted
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?
Not fix real problem. The motivation is that making the pagetable accounting more accurate, which helps us to analyse the consumption of the pagetable pages in some cases, and maybe help to do some empty pagetable reclaiming in future. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel