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V" , Andrew Morton , Jason Gunthorpe , Andrea Arcangeli , Axel Rasmussen Subject: Re: [PATCH 03/13] mm: Provide generic pmd_thp_or_huge() Message-ID: References: <20231219075538.414708-1-peterx@redhat.com> <20231219075538.414708-4-peterx@redhat.com> <135b3189-f459-4b57-9861-bb8acb999d91@linux.dev> MIME-Version: 1.0 In-Reply-To: <135b3189-f459-4b57-9861-bb8acb999d91@linux.dev> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 904E518000F X-Stat-Signature: h3idpy35hc3gizi14zjskneh499oyawg X-Rspam-User: X-HE-Tag: 1704173854-555772 X-HE-Meta: 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 /zv67rvH ojHaB9wVpZmKe7QX5ra/5G+Jv0OB3yUT/M31b8/kP3rkTdHza/xVsDxkI27KYxCWBT8lYaPoIB22PB7dU1JqqJFZ4Gr6TfLQApONBHJVbNYzjVJasGk7uruZR0bwjoWszy0H3LgtnU4rO84SB3Wyw9ZRi81ebKJeK2hUOL5ZDh2duFASh4+Rq+QpCDTgsu3azWAMN1ir3PoGLZJreVKqNb1vWhOzWENXZ2YI6zah1fN7r0JBOMjkC1/PcHqJI+toW22waMhjZV9nUP0AOx5zZUFONn+ObKaxVYKsL0h27lDnUbUwdJLg35QMi9OSXQg3xZWE+ru3LWp4XbkEe3mT/AOb2pgfYpZt4N44G54Ae8sezwU2Yc1Qkguoun3HDjEheI9wxcs6qzhnMYfgp1uFpRI8d+y4M+8O5e6/G9ljK2rdWtmbEW23G8ZweBzds5L6W/QgASt2VABYObi0= 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, Dec 25, 2023 at 02:29:53PM +0800, Muchun Song wrote: > > @@ -1355,6 +1355,10 @@ static inline int pmd_write(pmd_t pmd) > > #endif /* pmd_write */ > > #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ > > +#ifndef pmd_thp_or_huge > > I think it may be the time to rename to pmd_thp_or_hugetlb, > the "huge" is really confusing. thp is not huge? Actually, > it is huge. It is better to make it more specific from now on, like > "hugetlb". The rename will need to touch ARM code, which I wanted to avoid, see: arch/arm64/include/asm/pgtable.h:#define pmd_thp_or_huge(pmd) (pmd_huge(pmd) || pmd_trans_huge(pmd)) So far this series only touches generic code. Would you mind I keep this patch as-is, and leave renaming to later? > > BTW, please cc me via the new email (muchun.song@linux.dev) next edition. Sure. Thanks for taking a look. -- Peter Xu