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 D9C3FD277D0 for ; Sat, 10 Jan 2026 04:01:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E0E596B009F; Fri, 9 Jan 2026 23:01:03 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id C8D9F6B009D; Fri, 9 Jan 2026 23:01:03 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 96D3E6B009D; Fri, 9 Jan 2026 23:01:03 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 7F1F96B00A0 for ; Fri, 9 Jan 2026 23:01:02 -0500 (EST) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 4625B1DDE99 for ; Sat, 10 Jan 2026 04:01:02 +0000 (UTC) X-FDA: 84314703564.01.BF08739 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) by imf08.hostedemail.com (Postfix) with ESMTP id 56E9A160003 for ; Sat, 10 Jan 2026 04:01:00 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=linux.org.uk header.s=zeniv-20220401 header.b=fZ4Ftxdd; dmarc=pass (policy=none) header.from=zeniv.linux.org.uk; spf=none (imf08.hostedemail.com: domain of viro@ftp.linux.org.uk has no SPF policy when checking 62.89.141.173) smtp.mailfrom=viro@ftp.linux.org.uk ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768017660; a=rsa-sha256; cv=none; b=CSzEhDkg/rqX83YRDZVoTSLCO/+EqmrhKvGMY8tceWwknut9noXKYGUmcxcNgnSOYlUqcp +TWyv5ijKsoV7wOmmLz0BJ2gFiL17UIVBQinXN0Sol4uMrXF9cWJUgj+z9J8cO4OQjyV9Q FYX6oCz6c5IVR4E7rLarXVZKtdYIdC4= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=linux.org.uk header.s=zeniv-20220401 header.b=fZ4Ftxdd; dmarc=pass (policy=none) header.from=zeniv.linux.org.uk; spf=none (imf08.hostedemail.com: domain of viro@ftp.linux.org.uk has no SPF policy when checking 62.89.141.173) smtp.mailfrom=viro@ftp.linux.org.uk ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768017660; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=CTpW02raswBuv7j7RpZQuDcsunwQZN7ImQgsqrvpB7w=; b=14AChn+AFLQ2J1i7SnRmR09mIoeXrAum5f65ihTw9DghjEUCCHDzaGYWWsw1O7LPqrTKsU wQRTgUesVdxpWutFu3DGUTC7bYDH+6WZsjFxyVkepMAzR+WLCR3ucpRHrDOxH+QsLIppdr CqERHATm6zM4q+fesYFvLg6oPlJ5IAI= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description; bh=CTpW02raswBuv7j7RpZQuDcsunwQZN7ImQgsqrvpB7w=; b=fZ4FtxddXrGcwLpzr5s/FIqFbB tMxLMY7PP8xJ+h3pkLDGWDJvBfoOPykJWICv5M7n6CLyrscU/1vvKkICS5fMdQLksiYTpks+lAT/j yaf2Nck2v1MEaSrOQ51NyY9XDb4xxQCLA4120symgE1+/jEwVxScShqAC9f52Ssn/Yv35gz0uT5aM M2ial3P8740gYYBH5gtpEAtVq+7kXYjvo+u2th+jqNf5tw4iZBYAspR/JZzscHqYDZD8wYhS4d7T1 TbgyA/Y7GhBQsaDBIzXriLR41PDddd4ajz3E3AFYlJQiaiDAbjN8IqxW+ZvLCB0UcR/sHIicmC8d8 Ustmky9w==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.99 #2 (Red Hat Linux)) id 1veQB9-000000085Zv-10L5; Sat, 10 Jan 2026 04:02:19 +0000 From: Al Viro To: linux-mm@kvack.org Cc: Vlastimil Babka , Harry Yoo , linux-fsdevel@vger.kernel.org, Linus Torvalds , Christian Brauner , Jan Kara , Mateusz Guzik , linux-kernel@vger.kernel.org Subject: [RFC PATCH 08/15] turn files_cachep static-duration Date: Sat, 10 Jan 2026 04:02:10 +0000 Message-ID: <20260110040217.1927971-9-viro@zeniv.linux.org.uk> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260110040217.1927971-1-viro@zeniv.linux.org.uk> References: <20260110040217.1927971-1-viro@zeniv.linux.org.uk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: shdguujykzc3cjprm7mxmrtjq1i9b7dk X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 56E9A160003 X-HE-Tag: 1768017660-30058 X-HE-Meta: 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 whrm+WdB 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 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: Signed-off-by: Al Viro --- include/linux/fdtable.h | 3 ++- kernel/fork.c | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h index c45306a9f007..f2d553f99c58 100644 --- a/include/linux/fdtable.h +++ b/include/linux/fdtable.h @@ -113,6 +113,7 @@ int iterate_fd(struct files_struct *, unsigned, extern int close_fd(unsigned int fd); extern struct file *file_close_fd(unsigned int fd); -extern struct kmem_cache *files_cachep; +extern struct kmem_cache_opaque files_cache; +#define files_cachep to_kmem_cache(&files_cache) #endif /* __LINUX_FDTABLE_H */ diff --git a/kernel/fork.c b/kernel/fork.c index 23ed80d0d6d0..8c4d9a81ef42 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -472,7 +472,7 @@ static struct kmem_cache_opaque signal_cache; struct kmem_cache *sighand_cachep; /* SLAB cache for files_struct structures (tsk->files) */ -struct kmem_cache *files_cachep; +struct kmem_cache_opaque files_cache; /* SLAB cache for fs_struct structures (tsk->fs) */ struct kmem_cache *fs_cachep; @@ -3029,7 +3029,7 @@ void __init proc_caches_init(void) sizeof(struct signal_struct), 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT, NULL); - files_cachep = kmem_cache_create("files_cache", + kmem_cache_setup(files_cachep, "files_cache", sizeof(struct files_struct), 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT, NULL); -- 2.47.3