From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6749E77180 for ; Tue, 10 Dec 2024 09:03:10 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 41DDC6B0144; Tue, 10 Dec 2024 04:03:10 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3CE916B0146; Tue, 10 Dec 2024 04:03:10 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1FF7A6B0147; Tue, 10 Dec 2024 04:03:10 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 1493F6B0144 for ; Tue, 10 Dec 2024 04:03:08 -0500 (EST) Received: from smtpin19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id C1863A0681 for ; Tue, 10 Dec 2024 09:03:07 +0000 (UTC) X-FDA: 82878459006.19.6764011 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) by imf01.hostedemail.com (Postfix) with ESMTP id 114294000A for ; Tue, 10 Dec 2024 09:02:48 +0000 (UTC) Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=btGbqSX6; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=Rxi4OQ4J; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=btGbqSX6; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=Rxi4OQ4J; spf=pass (imf01.hostedemail.com: domain of vbabka@suse.cz designates 195.135.223.131 as permitted sender) smtp.mailfrom=vbabka@suse.cz; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1733821369; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=DLlh7h6ofiBuQzx0XC2gEj1YHzOdui5m+uObln9ifAw=; b=tYIoWtLbuhQgJyMZ18IW3N+rCdajhpu1K5WJmJQwbuadVi9MBZg+Yh96pw4hhlrhrvkeYi QzyLCB6ut/SWjACmHENlk7wLq08EDvuTx50nokUOHKkfYwjiw1qz6JVDFl5KUxG8/SIfrY Cu5OiGeYQzkJYNXSzFxkAOtY2fGby6Q= ARC-Authentication-Results: i=1; imf01.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=btGbqSX6; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=Rxi4OQ4J; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=btGbqSX6; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=Rxi4OQ4J; spf=pass (imf01.hostedemail.com: domain of vbabka@suse.cz designates 195.135.223.131 as permitted sender) smtp.mailfrom=vbabka@suse.cz; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1733821369; a=rsa-sha256; cv=none; b=AGfG/Ukfe/vl5qKLPXXKffpAjuh5qMA4DmSvHwTCFEfUcRkRC+0iSJtTwes4D8u/HMKeFm BaWhCTR68XU9bIHH/mEUonJFD6U7DtqLLhtaNtdClz50jLzu4cMoM5cpF0UjwDo0LSHI+l +B2uMyDGoJVm8K8xhq4TAEm85DAarEE= Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id C84A61F392; Tue, 10 Dec 2024 09:03:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1733821383; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=DLlh7h6ofiBuQzx0XC2gEj1YHzOdui5m+uObln9ifAw=; b=btGbqSX6J0QM44roBwe3j1eFWlAQ3x+9ND6sq71xTNKzPIEM+k1CfJa9hK6VO0Tb/NUCAa hEEKaX0sKxXnMz8MqD3UiPhg+AKNqAOsE+dNywLFiFumaAPYNhcNDogXn305HuC37QoVZg ZrdoToEZIzBVFoGkJyZYLyo5Wzmnarc= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1733821383; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=DLlh7h6ofiBuQzx0XC2gEj1YHzOdui5m+uObln9ifAw=; b=Rxi4OQ4JrLvjAUXiAvuAwDtKboZcNaX/EeoxTAzYVQo7Ee/w6DynM7wI44DVtUB7eF2f8S 13Vv/A73Vgk3osAQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1733821383; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=DLlh7h6ofiBuQzx0XC2gEj1YHzOdui5m+uObln9ifAw=; b=btGbqSX6J0QM44roBwe3j1eFWlAQ3x+9ND6sq71xTNKzPIEM+k1CfJa9hK6VO0Tb/NUCAa hEEKaX0sKxXnMz8MqD3UiPhg+AKNqAOsE+dNywLFiFumaAPYNhcNDogXn305HuC37QoVZg ZrdoToEZIzBVFoGkJyZYLyo5Wzmnarc= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1733821383; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=DLlh7h6ofiBuQzx0XC2gEj1YHzOdui5m+uObln9ifAw=; b=Rxi4OQ4JrLvjAUXiAvuAwDtKboZcNaX/EeoxTAzYVQo7Ee/w6DynM7wI44DVtUB7eF2f8S 13Vv/A73Vgk3osAQ== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 823AA138D2; Tue, 10 Dec 2024 09:03:03 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id jqZxH8cDWGfGKQAAD6G6ig (envelope-from ); Tue, 10 Dec 2024 09:03:03 +0000 Message-ID: Date: Tue, 10 Dec 2024 10:03:03 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 1/6] mm: introduce vma_start_read_locked{_nested} helpers Content-Language: en-US To: Suren Baghdasaryan , akpm@linux-foundation.org Cc: willy@infradead.org, liam.howlett@oracle.com, lorenzo.stoakes@oracle.com, mhocko@suse.com, hannes@cmpxchg.org, mjguzik@gmail.com, oliver.sang@intel.com, mgorman@techsingularity.net, david@redhat.com, peterx@redhat.com, oleg@redhat.com, dave@stgolabs.net, paulmck@kernel.org, brauner@kernel.org, dhowells@redhat.com, hdanton@sina.com, hughd@google.com, minchan@google.com, jannh@google.com, shakeel.butt@linux.dev, souravpanda@google.com, pasha.tatashin@soleen.com, corbet@lwn.net, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@android.com References: <20241206225204.4008261-1-surenb@google.com> <20241206225204.4008261-2-surenb@google.com> From: Vlastimil Babka Autocrypt: addr=vbabka@suse.cz; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSBWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBzdXNlLmN6PsLBlAQTAQoAPgIbAwULCQgHAwUVCgkICwUWAgMBAAIe AQIXgBYhBKlA1DSZLC6OmRA9UCJPp+fMgqZkBQJkBREIBQkRadznAAoJECJPp+fMgqZkNxIQ ALZRqwdUGzqL2aeSavbum/VF/+td+nZfuH0xeWiO2w8mG0+nPd5j9ujYeHcUP1edE7uQrjOC Gs9sm8+W1xYnbClMJTsXiAV88D2btFUdU1mCXURAL9wWZ8Jsmz5ZH2V6AUszvNezsS/VIT87 AmTtj31TLDGwdxaZTSYLwAOOOtyqafOEq+gJB30RxTRE3h3G1zpO7OM9K6ysLdAlwAGYWgJJ V4JqGsQ/lyEtxxFpUCjb5Pztp7cQxhlkil0oBYHkudiG8j1U3DG8iC6rnB4yJaLphKx57NuQ PIY0Bccg+r9gIQ4XeSK2PQhdXdy3UWBr913ZQ9AI2usid3s5vabo4iBvpJNFLgUmxFnr73SJ KsRh/2OBsg1XXF/wRQGBO9vRuJUAbnaIVcmGOUogdBVS9Sun/Sy4GNA++KtFZK95U7J417/J Hub2xV6Ehc7UGW6fIvIQmzJ3zaTEfuriU1P8ayfddrAgZb25JnOW7L1zdYL8rXiezOyYZ8Fm ZyXjzWdO0RpxcUEp6GsJr11Bc4F3aae9OZtwtLL/jxc7y6pUugB00PodgnQ6CMcfR/HjXlae h2VS3zl9+tQWHu6s1R58t5BuMS2FNA58wU/IazImc/ZQA+slDBfhRDGYlExjg19UXWe/gMcl De3P1kxYPgZdGE2eZpRLIbt+rYnqQKy8UxlszsBNBFsZNTUBCACfQfpSsWJZyi+SHoRdVyX5 J6rI7okc4+b571a7RXD5UhS9dlVRVVAtrU9ANSLqPTQKGVxHrqD39XSw8hxK61pw8p90pg4G /N3iuWEvyt+t0SxDDkClnGsDyRhlUyEWYFEoBrrCizbmahOUwqkJbNMfzj5Y7n7OIJOxNRkB IBOjPdF26dMP69BwePQao1M8Acrrex9sAHYjQGyVmReRjVEtv9iG4DoTsnIR3amKVk6si4Ea X/mrapJqSCcBUVYUFH8M7bsm4CSxier5ofy8jTEa/CfvkqpKThTMCQPNZKY7hke5qEq1CBk2 wxhX48ZrJEFf1v3NuV3OimgsF2odzieNABEBAAHCwXwEGAEKACYCGwwWIQSpQNQ0mSwujpkQ PVAiT6fnzIKmZAUCZAUSmwUJDK5EZgAKCRAiT6fnzIKmZOJGEACOKABgo9wJXsbWhGWYO7mD 8R8mUyJHqbvaz+yTLnvRwfe/VwafFfDMx5GYVYzMY9TWpA8psFTKTUIIQmx2scYsRBUwm5VI EurRWKqENcDRjyo+ol59j0FViYysjQQeobXBDDE31t5SBg++veI6tXfpco/UiKEsDswL1WAr tEAZaruo7254TyH+gydURl2wJuzo/aZ7Y7PpqaODbYv727Dvm5eX64HCyyAH0s6sOCyGF5/p eIhrOn24oBf67KtdAN3H9JoFNUVTYJc1VJU3R1JtVdgwEdr+NEciEfYl0O19VpLE/PZxP4wX PWnhf5WjdoNI1Xec+RcJ5p/pSel0jnvBX8L2cmniYnmI883NhtGZsEWj++wyKiS4NranDFlA HdDM3b4lUth1pTtABKQ1YuTvehj7EfoWD3bv9kuGZGPrAeFNiHPdOT7DaXKeHpW9homgtBxj 8aX/UkSvEGJKUEbFL9cVa5tzyialGkSiZJNkWgeHe+jEcfRT6pJZOJidSCdzvJpbdJmm+eED w9XOLH1IIWh7RURU7G1iOfEfmImFeC3cbbS73LQEFGe1urxvIH5K/7vX+FkNcr9ujwWuPE9b 1C2o4i/yZPLXIVy387EjA6GZMqvQUFuSTs/GeBcv0NjIQi8867H3uLjz+mQy63fAitsDwLmR EP+ylKVEKb0Q2A== In-Reply-To: <20241206225204.4008261-2-surenb@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 114294000A X-Rspamd-Server: rspam12 X-Stat-Signature: aj41bnafi573gn56kypxfpsznq4f3uji X-Rspam-User: X-HE-Tag: 1733821368-788807 X-HE-Meta: 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 5QhEVXuA BzCDOzhu/EbSxzjiKzbkag0Nbl9l8twtccvvcAgB6lFzpeq3I/RO4d9rjzTVnC6OIUUBbBbUOrv3xdkBWAjOqmcrnH9YL0KwU9CfDRGLXOepaN4ujr1/gurW0pAtF4IYlWIoOk/U9cO1f4KXkxCgjsiD8ecsrBpZ5mF5rfG4x7IasEoVjzZueU0PZcHt8doYguUC83y/2khWj/x7ZBRPOy7LpDCQRWBOIvPdjhZQaSfxmzcehFu5NeOCcPCMntnrNuUq886sJsqMtwnUC/dw4wttkkHccxMU1WsY8aVPuMFaOVdiw5u4/q0lSEpBmPQEOqzzdzbaQOiR/Lhoi5AjqIf1AjPFUUkBMt2yquacgSbDOfxYDBp8L0n9cwW3U9ciW7OzBqY8Htc7+TfjnLOPdvqKgXPu/219co8Irxko605AXyrihmwo2eJCCiMjRajhKg0Z3 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: On 12/6/24 23:51, Suren Baghdasaryan wrote: > Introduce helper functions which can be used to read-lock a VMA when > holding mmap_lock for read. Replace direct accesses to vma->vm_lock > with these new helpers. > > Signed-off-by: Suren Baghdasaryan > Reviewed-by: Lorenzo Stoakes > Reviewed-by: Davidlohr Bueso > Reviewed-by: Shakeel Butt Reviewed-by: Vlastimil Babka