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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 90F2ECFC294 for ; Fri, 21 Nov 2025 17:17:24 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id EE1226B002B; Fri, 21 Nov 2025 12:17:23 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id EB80F6B002C; Fri, 21 Nov 2025 12:17:23 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DA7286B002D; Fri, 21 Nov 2025 12:17:23 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id C86266B002B for ; Fri, 21 Nov 2025 12:17:23 -0500 (EST) Received: from smtpin04.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 7C08813B75C for ; Fri, 21 Nov 2025 17:17:23 +0000 (UTC) X-FDA: 84135270366.04.90C5DDC Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by imf20.hostedemail.com (Postfix) with ESMTP id E8C3F1C0013 for ; Fri, 21 Nov 2025 17:17:20 +0000 (UTC) Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=seitYhqw; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=NDTooAUC; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=seitYhqw; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=NDTooAUC; dmarc=none; spf=pass (imf20.hostedemail.com: domain of vbabka@suse.cz designates 195.135.223.130 as permitted sender) smtp.mailfrom=vbabka@suse.cz ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1763745441; a=rsa-sha256; cv=none; b=GvMqYKosA2pRRflQPFJ6DIfaL1OpE+eI9tuWJ2SXt/sUIMexwTWHAWwT1kEXsBA9mdPU5d NDGO4dx9L8l6iPtxnn9FufZaB+VhVwlGRydLmu+25hNxrR5WkquJDas/DeanHGaZEuKDWk sxMCORqpUIEdQIGH5zHqYleDqs1wlJY= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=seitYhqw; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=NDTooAUC; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=seitYhqw; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=NDTooAUC; dmarc=none; spf=pass (imf20.hostedemail.com: domain of vbabka@suse.cz designates 195.135.223.130 as permitted sender) smtp.mailfrom=vbabka@suse.cz ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1763745441; 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=7LEGbaOecDDjvk1EwNEzfMhTtMaKrsVKdVICC5r8o2o=; b=F/qip3c4ghp8iJz+Oyffa7bNLMbUH+PsXUiB9F0NkidgMJcybsnGYtjtXTw12Y47Qcyb/M NtQcYSymV7JlRa66q7yZo7MUWhmZuoQhxNe67S1VYieCQxVM3Fdgc6/msaB8qkS8m+pwaz mNp8O9nkcAJT2ya1tnl8jGXkv3TM6Ww= Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (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-out1.suse.de (Postfix) with ESMTPS id 16C04219B1; Fri, 21 Nov 2025 17:17:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1763745439; 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=7LEGbaOecDDjvk1EwNEzfMhTtMaKrsVKdVICC5r8o2o=; b=seitYhqwZ+LZ3NLW7zzLFjSgiBCBUcJgahySg+YR3FBvkymm+BoQA+jnCB733pHnWNrzua JD+Ir4xIO+0vtzG/hZEL4XaiLLOTJ0iUnjmewW62FQusZ/debzsVBK/nf4yiYjdsI3ED0S i3IZ4TwCSEvjsBBb60Wb1h9NfnvFCvw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1763745439; 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=7LEGbaOecDDjvk1EwNEzfMhTtMaKrsVKdVICC5r8o2o=; b=NDTooAUCnNZv3O9vs6OR7UL+JomfyBCx4pTJVEjHbWWNe57rQjcdrH+PHPnxRv94p0uYg3 NScDYut6UHA9eECQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1763745439; 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=7LEGbaOecDDjvk1EwNEzfMhTtMaKrsVKdVICC5r8o2o=; b=seitYhqwZ+LZ3NLW7zzLFjSgiBCBUcJgahySg+YR3FBvkymm+BoQA+jnCB733pHnWNrzua JD+Ir4xIO+0vtzG/hZEL4XaiLLOTJ0iUnjmewW62FQusZ/debzsVBK/nf4yiYjdsI3ED0S i3IZ4TwCSEvjsBBb60Wb1h9NfnvFCvw= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1763745439; 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=7LEGbaOecDDjvk1EwNEzfMhTtMaKrsVKdVICC5r8o2o=; b=NDTooAUCnNZv3O9vs6OR7UL+JomfyBCx4pTJVEjHbWWNe57rQjcdrH+PHPnxRv94p0uYg3 NScDYut6UHA9eECQ== 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 9988A3EA61; Fri, 21 Nov 2025 17:17:18 +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 f9HWJJ6eIGmKOgAAD6G6ig (envelope-from ); Fri, 21 Nov 2025 17:17:18 +0000 Message-ID: <37833a93-749e-4024-96e6-c6628e9e3b2e@suse.cz> Date: Fri, 21 Nov 2025 18:17:18 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 06/16] fs/proc/task_mmu: refactor pagemap_pmd_range() Content-Language: en-US To: Lorenzo Stoakes , Andrew Morton Cc: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , David Hildenbrand , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Sven Schnelle , Peter Xu , Alexander Viro , Christian Brauner , Jan Kara , Arnd Bergmann , Zi Yan , Baolin Wang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Muchun Song , Oscar Salvador , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Axel Rasmussen , Yuanchu Xie , Wei Xu , Kemeng Shi , Kairui Song , Nhat Pham , Baoquan He , Chris Li , SeongJae Park , Matthew Wilcox , Jason Gunthorpe , Leon Romanovsky , Xu Xin , Chengming Zhou , Jann Horn , Miaohe Lin , Naoya Horiguchi , Pedro Falcato , Pasha Tatashin , Rik van Riel , Harry Yoo , Hugh Dickins , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, damon@lists.linux.dev References: 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+fMgqZkBQJnyBr8BQka0IFQAAoJECJPp+fMgqZkqmMQ AIbGN95ptUMUvo6aAdhxaOCHXp1DfIBuIOK/zpx8ylY4pOwu3GRe4dQ8u4XS9gaZ96Gj4bC+ jwWcSmn+TjtKW3rH1dRKopvC07tSJIGGVyw7ieV/5cbFffA8NL0ILowzVg8w1ipnz1VTkWDr 2zcfslxJsJ6vhXw5/npcY0ldeC1E8f6UUoa4eyoskd70vO0wOAoGd02ZkJoox3F5ODM0kjHu Y97VLOa3GG66lh+ZEelVZEujHfKceCw9G3PMvEzyLFbXvSOigZQMdKzQ8D/OChwqig8wFBmV QCPS4yDdmZP3oeDHRjJ9jvMUKoYODiNKsl2F+xXwyRM2qoKRqFlhCn4usVd1+wmv9iLV8nPs 2Db1ZIa49fJet3Sk3PN4bV1rAPuWvtbuTBN39Q/6MgkLTYHb84HyFKw14Rqe5YorrBLbF3rl M51Dpf6Egu1yTJDHCTEwePWug4XI11FT8lK0LNnHNpbhTCYRjX73iWOnFraJNcURld1jL1nV r/LRD+/e2gNtSTPK0Qkon6HcOBZnxRoqtazTU6YQRmGlT0v+rukj/cn5sToYibWLn+RoV1CE Qj6tApOiHBkpEsCzHGu+iDQ1WT0Idtdynst738f/uCeCMkdRu4WMZjteQaqvARFwCy3P/jpK uvzMtves5HvZw33ZwOtMCgbpce00DaET4y/UzsBNBFsZNTUBCACfQfpSsWJZyi+SHoRdVyX5 J6rI7okc4+b571a7RXD5UhS9dlVRVVAtrU9ANSLqPTQKGVxHrqD39XSw8hxK61pw8p90pg4G /N3iuWEvyt+t0SxDDkClnGsDyRhlUyEWYFEoBrrCizbmahOUwqkJbNMfzj5Y7n7OIJOxNRkB IBOjPdF26dMP69BwePQao1M8Acrrex9sAHYjQGyVmReRjVEtv9iG4DoTsnIR3amKVk6si4Ea X/mrapJqSCcBUVYUFH8M7bsm4CSxier5ofy8jTEa/CfvkqpKThTMCQPNZKY7hke5qEq1CBk2 wxhX48ZrJEFf1v3NuV3OimgsF2odzieNABEBAAHCwXwEGAEKACYCGwwWIQSpQNQ0mSwujpkQ PVAiT6fnzIKmZAUCZ8gcVAUJFhTonwAKCRAiT6fnzIKmZLY8D/9uo3Ut9yi2YCuASWxr7QQZ lJCViArjymbxYB5NdOeC50/0gnhK4pgdHlE2MdwF6o34x7TPFGpjNFvycZqccSQPJ/gibwNA zx3q9vJT4Vw+YbiyS53iSBLXMweeVV1Jd9IjAoL+EqB0cbxoFXvnjkvP1foiiF5r73jCd4PR rD+GoX5BZ7AZmFYmuJYBm28STM2NA6LhT0X+2su16f/HtummENKcMwom0hNu3MBNPUOrujtW khQrWcJNAAsy4yMoJ2Lw51T/5X5Hc7jQ9da9fyqu+phqlVtn70qpPvgWy4HRhr25fCAEXZDp xG4RNmTm+pqorHOqhBkI7wA7P/nyPo7ZEc3L+ZkQ37u0nlOyrjbNUniPGxPxv1imVq8IyycG AN5FaFxtiELK22gvudghLJaDiRBhn8/AhXc642/Z/yIpizE2xG4KU4AXzb6C+o7LX/WmmsWP Ly6jamSg6tvrdo4/e87lUedEqCtrp2o1xpn5zongf6cQkaLZKQcBQnPmgHO5OG8+50u88D9I rywqgzTUhHFKKF6/9L/lYtrNcHU8Z6Y4Ju/MLUiNYkmtrGIMnkjKCiRqlRrZE/v5YFHbayRD dJKXobXTtCBYpLJM4ZYRpGZXne/FAtWNe4KbNJJqxMvrTOrnIatPj8NhBVI0RSJRsbilh6TE m6M14QORSWTLRg== In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Action: no action X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: E8C3F1C0013 X-Stat-Signature: 1tymq4tm3zqtwjqkdatoydfbe9r81p4k X-HE-Tag: 1763745440-521362 X-HE-Meta: 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 mfGj6HIc yxIwJJ5Yk6a8PARWbfv+mPY3PSe2AdqWaVhxF82QwofE4ZUKwiTAbanjIRzezVYwvOYY+RvcGGFk2XHvsN+N6HZPKlPIWzHbboDpFrldK+ccRBzcplKzDY3bDZfG0WXG/J+XcMvYIoL7xBSMoljL6YSz3mbnSR4o1/jJNEmrMCw9XAIMO/za9TBE5vPe/hJglZm/8g62lXu4ucxdus4WBD0I3fuFW5Nv18DCmCYqFRDNFNfXaCnZaYjGrVNkejClT2VKz/Q+jRx3R62i15hF0Cgf0Uw9i3d8OeYfU0jZ7AFsCnKoQoKErsQvs0gos8O7ySv6Vp3oDav0o6Xy5iUgdGCGmgXSoEG6JuSR4KfBdEP9NdBY9Fw3Us8cFw1YHtwEnU2Z1J+xculhGz36RdV228NxRGzTaUJ19BEFFK8tqkoND2vU= 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 11/10/25 23:21, Lorenzo Stoakes wrote: > Separate out THP logic so we can drop an indentation level and reduce the > amount of noise in this function. > > We add pagemap_pmd_range_thp() for this purpose. > > While we're here, convert the VM_BUG_ON() to a VM_WARN_ON_ONCE() at the > same time. > > No functional change intended. > > Signed-off-by: Lorenzo Stoakes Reviewed-by: Vlastimil Babka