From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 040622C9C for ; Tue, 4 Jan 2022 00:10:54 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id DF6BA1F397; Tue, 4 Jan 2022 00:10:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1641255052; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UjwmNSDmEW/gEl8L53ZD20VA7yF94pX2Jnzs0mb2D5I=; b=aE0t1mz6zjZcQ9aU3B0XZTitsvDTNqku/wdZxP72gEtCUEPfBpSGeQlNtsu8BL8d6OGjX0 018nlxOlsD8k5w2NF/YQ9Os4pDWb22L/jcc0tX9LHkCjh2zJpO14fxaJXd8PbJIEoNgo9G GSjVVw0kScdp+TPUqVpazPOIbBqLGBU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1641255052; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UjwmNSDmEW/gEl8L53ZD20VA7yF94pX2Jnzs0mb2D5I=; b=eV5YfGhRR5xLNVEJFquyIWL71w2IjQebAosdMvLP1mHkmycnJMEciLgt856bBS3Rgh68FG YA2Mu/Ot/kTmWRCA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id B3382139EE; Tue, 4 Jan 2022 00:10:52 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id aCkRK4yQ02FEQwAAMHmgww (envelope-from ); Tue, 04 Jan 2022 00:10:52 +0000 From: Vlastimil Babka To: Matthew Wilcox , Christoph Lameter , David Rientjes , Joonsoo Kim , Pekka Enberg Cc: linux-mm@kvack.org, Andrew Morton , Johannes Weiner , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, patches@lists.linux.dev, Vlastimil Babka Subject: [PATCH v4 01/32] mm: add virt_to_folio() and folio_address() Date: Tue, 4 Jan 2022 01:10:15 +0100 Message-Id: <20220104001046.12263-2-vbabka@suse.cz> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220104001046.12263-1-vbabka@suse.cz> References: <20220104001046.12263-1-vbabka@suse.cz> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1229; h=from:subject; bh=TrQq/wP139J7sjIGWcZYuZJSMcfBZseWcvSXmOy2LHI=; b=owEBbQGS/pANAwAIAeAhynPxiakQAcsmYgBh05Bq/7Z6leC5nyGSJzVgoUkJLZj/WiEILgQXR8dL ZStXeZ6JATMEAAEIAB0WIQSNS5MBqTXjGL5IXszgIcpz8YmpEAUCYdOQagAKCRDgIcpz8YmpEIxPCA CskayEaZnnTzNOOB6k6ZsoeUX7GOnGyCjE2GjnJyXO4HEt7dsA5vGxqgvThpC5jqnwb+lhQYZ0JnmA 5uC/GTswm+7+it4DHF9cQkH5LCfdbj6z8nCLEFZTNOPF4J7DcdaEZ06Piqg63N4/Ltv6G1hvJnmyT0 N/GP7q4GaqriUxTGLHLJ2ivu9m2X23GE+Da5GDYsHRz1DqChODl4heNcyzkpmaDFPCkIVclL0UVYrA LMYZcA+M/3DtxsPV/1eSFiafCSSpsZBbHFEmGjHtR7hUbsh9XW7MQ3P1pzK3yBPCznm499MLQWeBNg UidQjQqcpDAfmATc8TiG1IvEAGXlgI X-Developer-Key: i=vbabka@suse.cz; a=openpgp; fpr=A940D434992C2E8E99103D50224FA7E7CC82A664 Content-Transfer-Encoding: 8bit These two wrappers around their respective struct page variants will be useful in the following patches. Signed-off-by: Vlastimil Babka Acked-by: Johannes Weiner Reviewed-by: Roman Gushchin --- include/linux/mm.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index a7e4a9e7d807..4a6cf22483da 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -863,6 +863,13 @@ static inline struct page *virt_to_head_page(const void *x) return compound_head(page); } +static inline struct folio *virt_to_folio(const void *x) +{ + struct page *page = virt_to_page(x); + + return page_folio(page); +} + void __put_page(struct page *page); void put_pages_list(struct list_head *pages); @@ -1753,6 +1760,11 @@ void page_address_init(void); #define page_address_init() do { } while(0) #endif +static inline void *folio_address(const struct folio *folio) +{ + return page_address(&folio->page); +} + extern void *page_rmapping(struct page *page); extern struct anon_vma *page_anon_vma(struct page *page); extern pgoff_t __page_file_index(struct page *page); -- 2.34.1