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[2003:d8:2f26:ba00:803:6ec5:9918:6fd]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-3c074e38d65sm12982954f8f.27.2025.08.21.13.08.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Aug 2025 13:08:13 -0700 (PDT) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: David Hildenbrand , Damien Le Moal , Niklas Cassel , Alexander Potapenko , Andrew Morton , Brendan Jackman , Christoph Lameter , Dennis Zhou , Dmitry Vyukov , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, iommu@lists.linux.dev, io-uring@vger.kernel.org, Jason Gunthorpe , Jens Axboe , Johannes Weiner , John Hubbard , kasan-dev@googlegroups.com, kvm@vger.kernel.org, "Liam R. 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 RFC 24/35] ata: libata-eh: drop nth_page() usage within SG entry Date: Thu, 21 Aug 2025 22:06:50 +0200 Message-ID: <20250821200701.1329277-25-david@redhat.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250821200701.1329277-1-david@redhat.com> References: <20250821200701.1329277-1-david@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: Ey-N-3r6xfRg1Qwqy3KcMsjuU2uA3tKygjlijEiaCOc_1755806895 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Queue-Id: 9DD2140008 X-Rspam-User: X-Stat-Signature: 53cg5n8rx9mdbf84zidhxxtq1ffaywy8 X-Rspamd-Server: rspam09 X-HE-Tag: 1755806897-954384 X-HE-Meta: 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 1ShRrwz1 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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() when iterating pages within a single SG entry, so let's drop the nth_page() usage. Cc: Damien Le Moal Cc: Niklas Cassel Signed-off-by: David Hildenbrand --- drivers/ata/libata-sff.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 7fc407255eb46..9f5d0f9f6d686 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -614,7 +614,7 @@ static void ata_pio_sector(struct ata_queued_cmd *qc) offset = qc->cursg->offset + qc->cursg_ofs; /* get the current page and offset */ - page = nth_page(page, (offset >> PAGE_SHIFT)); + page += offset / PAGE_SHIFT; offset %= PAGE_SIZE; /* don't overrun current sg */ @@ -631,7 +631,7 @@ static void ata_pio_sector(struct ata_queued_cmd *qc) unsigned int split_len = PAGE_SIZE - offset; ata_pio_xfer(qc, page, offset, split_len); - ata_pio_xfer(qc, nth_page(page, 1), 0, count - split_len); + ata_pio_xfer(qc, page + 1, 0, count - split_len); } else { ata_pio_xfer(qc, page, offset, count); } @@ -751,7 +751,7 @@ static int __atapi_pio_bytes(struct ata_queued_cmd *qc, unsigned int bytes) offset = sg->offset + qc->cursg_ofs; /* get the current page and offset */ - page = nth_page(page, (offset >> PAGE_SHIFT)); + page += offset / PAGE_SIZE; offset %= PAGE_SIZE; /* don't overrun current sg */ -- 2.50.1