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Tsirkin" , "Theodore Ts'o" , Albert Ou , Alexander Duyck , Alexander Gordeev , Alexander Viro , Alexandra Winter , Andreas Dilger , Andrew Lunn , Anna Schumaker , Anton Yakovlev , Arnaldo Carvalho de Melo , Aswin Karuvally , Borislav Petkov , Carlos Maiolino , Catalin Marinas , Chao Yu , Christian Borntraeger , Christian Brauner , Claudio Imbrenda , Dave Hansen , David Airlie , Dominique Martinet , Dongsheng Yang , Eric Dumazet , Eric Van Hensbergen , Heiko Carstens , Herbert Xu , Ingo Molnar , Jaegeuk Kim , Jakub Kicinski , Jani Nikula , Janosch Frank , Jaroslav Kysela , Jens Axboe , Joonas Lahtinen , Latchesar Ionkov , Linus Walleij , Madhavan Srinivasan , Mark Brown , Michael Ellerman , Miklos Szeredi , Namhyung Kim , Palmer Dabbelt , Paolo Abeni , Paolo Bonzini , Paul Walmsley , Peter Zijlstra , Rodrigo Vivi , Sean Christopherson , Simona Vetter , Takashi Iwai , Thomas Gleixner , Trond Myklebust , Tvrtko Ursulin , Vasily Gorbik , Will Deacon , Yury Norov , Zheng Gu Cc: Yury Norov , linux-kernel@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-block@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, dm-devel@lists.linux.dev, netdev@vger.kernel.org, linux-spi@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-crypto@vger.kernel.org, linux-mm@kvack.org, linux-perf-users@vger.kernel.org, v9fs@lists.linux.dev, virtualization@lists.linux.dev, linux-sound@vger.kernel.org Subject: [PATCH 1/8] mm: add rest_of_page() macro Date: Tue, 3 Mar 2026 20:27:09 -0500 Message-ID: <20260304012717.201797-2-ynorov@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260304012717.201797-1-ynorov@nvidia.com> References: <20260304012717.201797-1-ynorov@nvidia.com> X-ClientProxiedBy: BN0PR04CA0020.namprd04.prod.outlook.com (2603:10b6:408:ee::25) To PH0PR12MB8800.namprd12.prod.outlook.com (2603:10b6:510:26f::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH0PR12MB8800:EE_|IA1PR12MB6651:EE_ X-MS-Office365-Filtering-Correlation-Id: 91646663-0fb1-410c-8504-08de798d2f20 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|10070799003|376014|7416014|921020; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The net/9p networking driver has a handy macro to calculate the amount of bytes from a given pointer to the end of page. Move it to mm. The following patches apply it tree-wide. Signed-off-by: Yury Norov --- include/linux/mm.h | 2 ++ net/9p/trans_virtio.c | 6 ------ 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 5be3d8a8f806..6d1025c6249a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2793,6 +2793,8 @@ extern void pagefault_out_of_memory(void); #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) #define offset_in_folio(folio, p) ((unsigned long)(p) & (folio_size(folio) - 1)) +#define rest_of_page(p) (PAGE_SIZE - offset_in_page(p)) + /* * Parameter block passed down to zap_pte_range in exceptional cases. */ diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 4cdab7094b27..1ca53209d036 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -87,12 +87,6 @@ struct virtio_chan { static struct list_head virtio_chan_list; -/* How many bytes left in this page. */ -static unsigned int rest_of_page(void *data) -{ - return PAGE_SIZE - offset_in_page(data); -} - /** * p9_virtio_close - reclaim resources of a channel * @client: client instance -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv