From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C5714225788; Fri, 22 May 2026 21:16:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779484580; cv=none; b=VGgExNd52BLgyVaayUZl4i1AiTdzeow5+dakkQ3db0qrpg+o+oqBeGaD+655x3l+QopD3LzylDHP5HNW25clL4VzzBPiRt1uu2T7y1ZhSPfUUejHgjlp2e8+3S/7k6r++CHJTrAS3lM+aNLRb0GH4w5ZA4aXDhiuhuUF5b3dqdQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779484580; c=relaxed/simple; bh=I1zTQPdcetd5J38Cy15bTS4wTmTntgus7DqFMwD1Yps=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=SiL5U8AmZZDD9iYYOR1nteAFlP80PPSlzGV9A1wtSR87mt/TBgeVsfQCBL4BZ47r0uN3AHdYQJrsXQJciS2Is2oMooFwmh3FIktNHEBWMspsyJ2O7Kg9Gqb/HP9zfmSEhjo2eZ30/j8vFpEU2+5h78kwuS+IkxhhbXiOHJDUSRA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nNwzPSZO; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nNwzPSZO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 495371F000E9; Fri, 22 May 2026 21:16:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779484579; bh=tGmWZbG2XGjAGwpaog1iRNN4n31HKv4MBqTgH3eSn90=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=nNwzPSZO0ZEHyiAgw1qN6z/KxhNwy1BnxwrzxfF8GndiwcyyMdaCY7X5j2j5LaUFr G4mnI05/cCDFJiSr3ohFweFxCMAqT1/Sr3dWxKvh7WtB8uu+PHmsa+HaLZqJ1RuLGB YVzdC29OzzaPwCvyalyJNimn0BpZ9tbCAlDt/D+J6czOdZcvA+5feY/Ir603AcWDX/ EqvZN4LVid2f38MiJSe36TPmXRyJulrZcWynCXZjhnZ0/+FEyhtffNgG5HaY3IKmGs 9+7+hTgeuJDZX9ZCdi6abfB+XMebg6A9RgpDtVNy5oQsnvENBtYj7zGbUOB5bIXWm+ fRJIkUqBUP8Zw== Message-ID: Date: Fri, 22 May 2026 23:16:01 +0200 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH mm-unstable v18 03/14] mm/khugepaged: rework max_ptes_* handling with helper functions To: Nico Pache , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org Cc: aarcange@redhat.com, akpm@linux-foundation.org, anshuman.khandual@arm.com, apopple@nvidia.com, baohua@kernel.org, baolin.wang@linux.alibaba.com, byungchul@sk.com, catalin.marinas@arm.com, cl@gentwo.org, corbet@lwn.net, dave.hansen@linux.intel.com, dev.jain@arm.com, gourry@gourry.net, hannes@cmpxchg.org, hughd@google.com, jack@suse.cz, jackmanb@google.com, jannh@google.com, jglisse@google.com, joshua.hahnjy@gmail.com, kas@kernel.org, lance.yang@linux.dev, liam@infradead.org, ljs@kernel.org, mathieu.desnoyers@efficios.com, matthew.brost@intel.com, mhiramat@kernel.org, mhocko@suse.com, peterx@redhat.com, pfalcato@suse.de, rakie.kim@sk.com, raquini@redhat.com, rdunlap@infradead.org, richard.weiyang@gmail.com, rientjes@google.com, rostedt@goodmis.org, rppt@kernel.org, ryan.roberts@arm.com, shivankg@amd.com, sunnanyong@huawei.com, surenb@google.com, thomas.hellstrom@linux.intel.com, tiwai@suse.de, usamaarif642@gmail.com, vbabka@suse.cz, vishal.moola@gmail.com, wangkefeng.wang@huawei.com, will@kernel.org, willy@infradead.org, yang@os.amperecomputing.com, ying.huang@linux.alibaba.com, ziy@nvidia.com, zokeefe@google.com, Usama Arif References: <20260522150009.121603-1-npache@redhat.com> <20260522150009.121603-4-npache@redhat.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit > int hugepage_madvise(struct vm_area_struct *vma, > vm_flags_t *vm_flags, int advice) > { > @@ -540,6 +598,8 @@ static enum scan_result __collapse_huge_page_isolate(struct vm_area_struct *vma, > unsigned long start_addr, pte_t *pte, struct collapse_control *cc, > struct list_head *compound_pagelist) > { > + const unsigned int max_ptes_none = collapse_max_ptes_none(cc, vma); > + const unsigned int max_ptes_shared = collapse_max_ptes_shared(cc); Yeah, it's good that these are all const now. -- Cheers, David