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 3D65ED277CA for ; Sat, 10 Jan 2026 05:40:42 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A1B786B0088; Sat, 10 Jan 2026 00:40:41 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9C9286B0089; Sat, 10 Jan 2026 00:40:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8D5696B008A; Sat, 10 Jan 2026 00:40:41 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 7B8C36B0088 for ; Sat, 10 Jan 2026 00:40:41 -0500 (EST) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 0B499140132 for ; Sat, 10 Jan 2026 05:40:41 +0000 (UTC) X-FDA: 84314954682.25.25CA381 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf30.hostedemail.com (Postfix) with ESMTP id A05DC80009 for ; Sat, 10 Jan 2026 05:40:38 +0000 (UTC) Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=ZdOWEL1J; spf=none (imf30.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=pass (policy=none) header.from=infradead.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768023639; a=rsa-sha256; cv=none; b=EHWqAa9xYVOwgSeaTctryhtaYvQUe/VHmmcv/3Z+v7usIQ2UdNgSilqK070NBWbklDBm+W UhWH5iGj2FSb2XkeBor8i6CLPqhKAyUyjCQjGvaUOj1ko+bbpgPwEVXs/7tNPcQYE7lxTf YmX5lJxQQUQ99K4oH12UoD0h1EcODrM= ARC-Authentication-Results: i=1; imf30.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=ZdOWEL1J; spf=none (imf30.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=pass (policy=none) header.from=infradead.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768023639; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=dq5WnUbsxkXZ2XZj0ZTWTXM2WHawM29bk17AjRKeCjE=; b=aeZK3GU9bDPkCZceaTKPlaaawiwVQ0jqsH7kVk2zoIKj8aSvW6qyaV03ZEqBhypxBUF2jb EvlONiqOAWrl2B090vrEuyqgCM3TzrC2bQWu7mWklKTerunz17VRmPZ2xG1ClDKQjs7AE8 lcAMrxuF2/eVSqIwrtw/cWvhG+kFJVw= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=dq5WnUbsxkXZ2XZj0ZTWTXM2WHawM29bk17AjRKeCjE=; b=ZdOWEL1JrzdvWUCpsHwz2fifLz EhLnr5Mg2zR5nF8xinZpR1T9ePsoyo1uA4QtdJxsfvSnfDPVH92MFi8UGUwuhHZi64DDUhrH9w9sY 7/0F5M+CQ83dgVK2CEa71i5uPu9wQaojdES5biXy147dNeXpLFtwdLes2Ea1Yva/rtQxfgvbUNG9S EIO9Zg+7YVmSoE05XrqpgI7kB8IGLb2ajRV1PSmTCvv6WKegqil/AgGsjP7EpkFVH65Is+7/gC+2k iqed1FP2Z/mKTX7ENFm+36J7rmjhabwnxSq5HMHf+iRdBGwhBO/z4NT9Y8CdOGsBjEioraIcI2xbS WBPlP0UQ==; Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1veRiE-00000000GTV-3XrO; Sat, 10 Jan 2026 05:40:34 +0000 Date: Sat, 10 Jan 2026 05:40:34 +0000 From: Matthew Wilcox To: Al Viro Cc: linux-mm@kvack.org, Vlastimil Babka , Harry Yoo , linux-fsdevel@vger.kernel.org, Linus Torvalds , Christian Brauner , Jan Kara , Mateusz Guzik , linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 01/15] static kmem_cache instances for core caches Message-ID: References: <20260110040217.1927971-1-viro@zeniv.linux.org.uk> <20260110040217.1927971-2-viro@zeniv.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260110040217.1927971-2-viro@zeniv.linux.org.uk> X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: A05DC80009 X-Stat-Signature: 55rg9dw1wwxc8d758a9f11u1wbwic51j X-Rspam-User: X-HE-Tag: 1768023638-206029 X-HE-Meta: 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 XnTj3rVv wVj553v7YJO4lcxeHp7A9pDTYQn5fOjhkJXNrnGc+Ng0y/dtOKaLy9Bak9Sf2tiqDiYkoanv8dBLTHz8/DFTOf1plvxxQoUdzNi5IXw5XsQvejkQGBYFZ10VGhuliKfY+BL03oxIBKsbhDlzbObyc71UWpw+eR4I9PeGo8Rmp3lac74bAsm+8M4aqB1Ul4wpdn6PLwhM8xPx7iF1PmHa9e00l1exhZJeG8UDea3J/oeg0NjkSSDnlyHCBFTUPTkeOqqClZk6ruzEzA4qevCUopmCLtrVmVWJkz1HUyLnFztk6tts= 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 Sat, Jan 10, 2026 at 04:02:03AM +0000, Al Viro wrote: > +++ b/Kbuild > @@ -45,13 +45,24 @@ kernel/sched/rq-offsets.s: $(offsets-file) > $(rq-offsets-file): kernel/sched/rq-offsets.s FORCE > $(call filechk,offsets,__RQ_OFFSETS_H__) > > +# generate kmem_cache_size.h > + > +kmem_cache_size-file := include/generated/kmem_cache_size.h > + > +targets += mm/kmem_cache_size.s > + > +mm/kmem_cache_size.s: $(rq-offsets-file) > + > +$(kmem_cache_size-file): mm/kmem_cache_size.s FORCE > + $(call filechk,offsets,__KMEM_CACHE_SIZE_H__) > + > # Check for missing system calls > > quiet_cmd_syscalls = CALL $< > cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags) > > PHONY += missing-syscalls > -missing-syscalls: scripts/checksyscalls.sh $(rq-offsets-file) > +missing-syscalls: scripts/checksyscalls.sh $(kmem_cache_size-file) > $(call cmd,syscalls) Did you mean to _replace_ rq-offsets-file rather than add kmem_cache_size-file ? (I also wonder if we want to just do slab or if we want to make this mm-offsets.h and maybe put other things in it later, but I'm having trouble thinking of other things we might want to generate)