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Howlett" , Linus Torvalds , linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ide@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mips@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Lorenzo Stoakes , Marco Elver , Marek Szyprowski , Michal Hocko , Mike Rapoport , Muchun Song , netdev@vger.kernel.org, Oscar Salvador , Peter Xu , Robin Murphy , Suren Baghdasaryan , Tejun Heo , virtualization@lists.linux.dev, Vlastimil Babka , wireguard@lists.zx2c4.com, x86@kernel.org, Zi Yan Subject: [PATCH v1 17/36] mm/pagewalk: drop nth_page() usage within folio in folio_walk_start() Date: Thu, 28 Aug 2025 00:01:21 +0200 Message-ID: <20250827220141.262669-18-david@redhat.com> In-Reply-To: <20250827220141.262669-1-david@redhat.com> References: <20250827220141.262669-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Stat-Signature: 7h433o7nj3s859enw6sbzc8zp9uxro6x X-Rspam-User: X-Rspamd-Queue-Id: B7C29120006 X-Rspamd-Server: rspam01 X-HE-Tag: 1756332430-581095 X-HE-Meta: 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 bjcR3MNg 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 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: It's no longer required to use nth_page() within a folio, so let's just drop the nth_page() in folio_walk_start(). Signed-off-by: David Hildenbrand --- mm/pagewalk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/pagewalk.c b/mm/pagewalk.c index c6753d370ff4e..9e4225e5fcf5c 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -1004,7 +1004,7 @@ struct folio *folio_walk_start(struct folio_walk *fw, found: if (expose_page) /* Note: Offset from the mapped page, not the folio start. */ - fw->page = nth_page(page, (addr & (entry_size - 1)) >> PAGE_SHIFT); + fw->page = page + ((addr & (entry_size - 1)) >> PAGE_SHIFT); else fw->page = NULL; fw->ptl = ptl; -- 2.50.1