From nobody Mon Feb 9 04:13:55 2026 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 63D3B21CC59; Sat, 10 Jan 2026 04:01:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768017664; cv=none; b=utQ4CjZLa1WyNRTjfEY4X4wfrYP7HMEEDdMx64O/4vaTk+f3hUJEFvdgQ15AoeyPtJJthDZi4qRmpZTTleYc1KTCx+3pV1IhybDYInxzAQ9itYW/R5ePy54xKl4XWGpOdfAFQjAEBlq8e6fb83PAuJUE3wRR/VSxc7kCi3d1SvE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768017664; c=relaxed/simple; bh=PHiqAo8sfETc1EUDjMcxffd+xcaTBy5CaEWJ25g7Pv0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SVpxdjbIjdZgf9ePflxKIOrg0Fouu+fFz0Nc0LCWGN2yZwejIv+o6mDuAjwNhC8f+MKSL8yR8JCyKglF6ZIMZ7CxyGcODItduNvLQrEu/18aYg6SF0Sz+3/hTSC8JlFS5Nau2RJDLS0XUQ3qZvbnsSWkXBKoQCMJ8HRx4Jyr5lc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk; spf=none smtp.mailfrom=ftp.linux.org.uk; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b=D8udur4h; arc=none smtp.client-ip=62.89.141.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=ftp.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b="D8udur4h" 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=NYQE0/4xpxjm8d68deKwDm3nKFoSSIOI589+d+MkqSY=; b=D8udur4huObW0MeP2JD6P+gkIU SeFREtW5He2AXWOlxBjfeigmkmEF53QTJmJUzNh7IDQh3PHtwQg4A5AXBUUv6GjfnZlBt+WcJkVg8 YKdX97Mm1CugfdSPg3qM6Wk3l+aoysR1sXWj6d6U3lrFF/vJ3lMvrr+kqxZymEAVmrKEmfk8RRE/g co+NMA+99yF9cshfrQlFS6mnZ/zDYCFVyw/FjAvGbuNza6QvjOA36iDXrLf20r7/kANoHmlsYG3nG Ag1HnDnZndRzj1D/IMAt4lmQid3tIeOG/9qNnpmZP+h3wdLuQySYSVGKMvyHk8yZUvdNE/rDWUVM/ bl+lQdPw==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.99 #2 (Red Hat Linux)) id 1veQB8-000000085ZV-3ZAL; Sat, 10 Jan 2026 04:02:18 +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 05/15] turn signal_cache static-duration Date: Sat, 10 Jan 2026 04:02:07 +0000 Message-ID: <20260110040217.1927971-6-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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: Al Viro Content-Type: text/plain; charset="utf-8" Signed-off-by: Al Viro --- kernel/fork.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index ddd2558f9431..23ed80d0d6d0 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -465,7 +465,8 @@ void thread_stack_cache_init(void) #endif /* CONFIG_VMAP_STACK */ =20 /* SLAB cache for signal_struct structures (tsk->signal) */ -static struct kmem_cache *signal_cachep; +static struct kmem_cache_opaque signal_cache; +#define signal_cachep to_kmem_cache(&signal_cache) =20 /* SLAB cache for sighand_struct structures (tsk->sighand) */ struct kmem_cache *sighand_cachep; @@ -3024,7 +3025,7 @@ void __init proc_caches_init(void) sizeof(struct sighand_struct), 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_TYPESAFE_BY_RCU| SLAB_ACCOUNT, sighand_ctor); - signal_cachep =3D kmem_cache_create("signal_cache", + kmem_cache_setup(signal_cachep, "signal_cache", sizeof(struct signal_struct), 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT, NULL); --=20 2.47.3