From nobody Mon Feb 9 15:08:41 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 6BD1A25DAEA; 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=hcgjFevz7ShA5wECXeoutP5Hh36/A6c+Gwdk4h9UBTSzVBpLZvldBuJO6XbRRPczoKwkRLGEObICW0592bBPc1m9B7JEWpHbQZ3fqpUPjzFCT2T6WWmUGfFu2QgOFw5kG7FU2Pk6G5M1gFXjNbQJ5ToA9Fu049N3mHjmjVYv5dA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768017664; c=relaxed/simple; bh=1z70lKRknlSdqIBwT8PCoJx1AjZFc/zasivWeZ/Xl+Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sjxAJTtsWwhEQpibRkTCtWT4qCzMANowJaSYkOYjfqcnqBM3L5n1HGLhTgoX6N9II1ZzeCJpeF0W8LU85uY1+igPVbCN0AVibi2SywVC4ES34flxrbo0w5f/EaJfmHzGLHEFnemzsItsuqlAlG3nkM554BijPlj6zoL5reioKIY= 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=uIeicvqc; 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="uIeicvqc" 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=C4O95Yl5s9/wxYDLNk10/lpMX9to528i2PgDiiXFfe4=; b=uIeicvqcAdjQez8e5XGTZuq3uz 6pS0Ua/0N3dsxZ2P0OYuhho5eQYhm8j5ts0/CncmYHbn2ywGNTTy5KC3FHlhWVGZn2wyYThkjwQQ0 cE0FyzqFQ2kKz1tX0H6hqCLWfhEb0ON24pcs/3/u/pkkck/NsFbbQl/3HMm01OEdHVC7dlv5T46Qb nR1lUjs3EuFSE1COSZX0yzMLd/O8jVHjHoFsVjoX/6y5oBwuyQWrixRMI2puUEPJv46OI20VFefKP 3zW/jVVbFNBDQlVmIihiNwNBe/IGLJldpZ27pFYSW9GvdZhX3I8upLGg45KAl59J/3Psr+vg0vJ3M Z2X0m9Ww==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.99 #2 (Red Hat Linux)) id 1veQB8-000000085Zh-4B9a; 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 06/15] turn bh_cachep static-duration Date: Sat, 10 Jan 2026 04:02:08 +0000 Message-ID: <20260110040217.1927971-7-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 --- fs/buffer.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 838c0c571022..c8ec1b440880 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -50,6 +50,7 @@ #include #include #include +#include =20 #include "internal.h" =20 @@ -2990,7 +2991,8 @@ EXPORT_SYMBOL(try_to_free_buffers); /* * Buffer-head allocation */ -static struct kmem_cache *bh_cachep __ro_after_init; +static struct kmem_cache_opaque bh_cache; +#define bh_cachep to_kmem_cache(&bh_cache) =20 /* * Once the number of bh's in the machine exceeds this level, we start @@ -3149,7 +3151,7 @@ void __init buffer_init(void) unsigned long nrpages; int ret; =20 - bh_cachep =3D KMEM_CACHE(buffer_head, + KMEM_CACHE_SETUP(bh_cachep, buffer_head, SLAB_RECLAIM_ACCOUNT|SLAB_PANIC); /* * Limit the bh occupancy to 10% of ZONE_NORMAL --=20 2.47.3