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Mon, 22 Jan 2024 00:25:25 -0800 (PST) X-Google-Smtp-Source: AGHT+IHSePoGNoX92PzQmVfT4AXX54k/+l1fGFhIaFtWONOwMEeDpGYerPythOMH74Vw9shCsROV9A== X-Received: by 2002:a05:6358:591d:b0:176:5ca9:7213 with SMTP id g29-20020a056358591d00b001765ca97213mr952991rwf.0.1705911925009; Mon, 22 Jan 2024 00:25:25 -0800 (PST) Received: from x1n ([43.228.180.230]) by smtp.gmail.com with ESMTPSA id h8-20020a654808000000b005ca0ae17983sm6839110pgs.8.2024.01.22.00.25.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 00:25:24 -0800 (PST) Date: Mon, 22 Jan 2024 16:25:12 +0800 From: Peter Xu To: Jason Gunthorpe Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, James Houghton , David Hildenbrand , "Kirill A . Shutemov" , Yang Shi , linux-riscv@lists.infradead.org, Andrew Morton , "Aneesh Kumar K . V" , Rik van Riel , Andrea Arcangeli , Axel Rasmussen , Mike Rapoport , John Hubbard , Vlastimil Babka , Michael Ellerman , Christophe Leroy , Andrew Jones , linuxppc-dev@lists.ozlabs.org, Mike Kravetz , Muchun Song , linux-arm-kernel@lists.infradead.org, Christoph Hellwig , Lorenzo Stoakes , Matthew Wilcox Subject: Re: [PATCH v2 01/13] mm/Kconfig: CONFIG_PGTABLE_HAS_HUGE_LEAVES Message-ID: References: <20240103091423.400294-1-peterx@redhat.com> <20240103091423.400294-2-peterx@redhat.com> <20240115173737.GO734935@nvidia.com> MIME-Version: 1.0 In-Reply-To: <20240115173737.GO734935@nvidia.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Rspamd-Queue-Id: 6E9394000F X-Rspam-User: X-Stat-Signature: rh75kb7m567njq8tudiykf147r1cmpqf X-Rspamd-Server: rspam03 X-HE-Tag: 1705911929-86919 X-HE-Meta: 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 46CSiGNz ApLIXX3rAVf0d+wZhKD5QLoNBuDGUA0iz6iiv+0MSAIr9gvmFr0k9ix/VXArzEOGkM/AYRk7cps0vkfEthfJ4dBaFfMp5EIY5FJEuWIkVroCVFaXsHu+AKg9iQ+bon3NhqKSmo6sO42d90SeYXD9nutX6iikmQpJpOZbNUgF6NDXYGB225JB3RJqRN2pw3fC1htxdPG21xYedzV1EjRITivpiYA3PcmzeTiLptONoOkArcZIE+WSH9k0PNrqFayyavKAUuOsCvc5y+pDe4nY0fEVn7cDU4N9JUBvnwbziOLc+eqd/l4pepxlGoeHMaL+Qg+Nlh/ofSKHxPzSE9GyY+4UBeY9pIXJA2u0Bkrp+yAYapoyuQjWmY/N5QFG26gckKdYwP6pDVbRBRqs0iMA1dBKDakcEyINKzgOuJRX3kA9GM9iQ00m3XQpLt9lGZBRwWZPcR+lhujGjo24= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jan 15, 2024 at 01:37:37PM -0400, Jason Gunthorpe wrote: > On Wed, Jan 03, 2024 at 05:14:11PM +0800, peterx@redhat.com wrote: > > From: Peter Xu > > > > Introduce a config option that will be selected as long as huge leaves are > > involved in pgtable (thp or hugetlbfs). It would be useful to mark any > > code with this new config that can process either hugetlb or thp pages in > > any level that is higher than pte level. > > > > Signed-off-by: Peter Xu > > --- > > mm/Kconfig | 3 +++ > > 1 file changed, 3 insertions(+) > > So you mean anything that supports page table entires > PAGE_SIZE ? Yes. > > Makes sense to me, though maybe add a comment in the kconfig? Sure I'll add some. > > Reviewed-by: Jason Gunthorpe Thanks for your reviews and also positive comments in previous versions, Jason. I appreciate that. I'm just pretty occupied with other tasks recently so I don't yet have time to revisit this series, along with other comments yet. I'll do so and reply to the comments / discussions together afterwards. -- Peter Xu