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Miller" , Eric Dumazet , Paolo Abeni , Willem de Bruijn , Matthew Wilcox , Al Viro , Christoph Hellwig , Jens Axboe , Jeff Layton , Christian Brauner , Chuck Lever III , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jeroen de Borst , Catherine Sullivan , Shailend Chand , Felix Fietkau , John Crispin , Sean Wang , Mark Lee , Lorenzo Bianconi , Matthias Brugger , AngeloGioacchino Del Regno , Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni , Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-nvme@lists.infradead.org Subject: Re: [PATCH net-next v5 03/19] mm: Make the page_frag_cache allocator use multipage folios Message-ID: <20230406175434.0d74bbcc@kernel.org> In-Reply-To: <20230406094245.3633290-4-dhowells@redhat.com> References: <20230406094245.3633290-1-dhowells@redhat.com> <20230406094245.3633290-4-dhowells@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 70869140009 X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: u866myptn64dizk5orj9kkgybtaxu5nr X-HE-Tag: 1680828878-85400 X-HE-Meta: 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 YHcKEJ2R 3Q1FoWTXjUbLEMD7s0BoRl76vBSeI0AFo5qoB8kDdLxvP7Sc4+G4cFxnhbuNyxxtQlfRyQ0/vmdZ5TyDuA4mcCUF2WxHBV9JJHLRRewzEFRzlrGSXpI96m3rc80mLAe3FrmWZmaOOVgShTitVZkp3aeEYO2RLJA7wP5d/9z+4ebHChnikVl1GIpUOwQ1P0CVnCA08nLLIUk2tcBp3b3+/pO8bnpZY6nsHLLRoTcHEkUXarEejxV0mU+s1OAFz9YVgCEl2YQwZHBRIFxfs0fVXeNufPpGAjuRqVmqQQWvZeP6T0/B76oE/hqSZzOr5clRuHAK7fZSrYFOZSCnQ2y4EZR7ugwxL78Vme88/rfHHwEzjdmXdkY8AZh6c8wnmLqfBYAbFrpVx6jL3bo1p0H7/YWLrZlJskuxhPixaUZXmcsn3lcY= 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: On Thu, 6 Apr 2023 10:42:29 +0100 David Howells wrote: > Change the page_frag_cache allocator to use multipage folios rather than > groups of pages. This reduces page_frag_free to just a folio_put() or > put_page(). drivers/nvme/host/tcp.c:1315:15: warning: unused variable 'page' [-Wunused-variable] struct page *page; ^ drivers/net/ethernet/mediatek/mtk_wed_wo.c:306:15: warning: unused variable 'page' [-Wunused-variable] struct page *page; ^