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 80B5F5427FB for ; Tue, 8 Sep 2026 12:52:06 +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=1788871927; cv=none; b=bEaHjMgKF4a+kWVvFGV1S/bqtInOyUC5hjWzkYKqusTBYfZFN1j+kaZUYgbCGUcYydJB2opqw/hseD9iZg6R/eLKbrLE8+xtb3eTS/nJCKayPPAomYwk9rGNDZzC3GurSDCkQ4CaN2wMXQdJpPJ/nhmk9NtGaS9WjkTbdnYUYF0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788871927; c=relaxed/simple; bh=rSZ8tKrEC08ITkpjzNS9l4ebnviOJUufaC3/CWJpahI=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=XjOFLJhURrQyAkM+TpoaedXwk0RvcBpnAcETkTN6Ujehji4SDY02AdQ0Pug8/c00w1U5lgd3AwVfoJEfin7NgyQKrD1j0D4HNJG+mPqh8UlwfJ1sR60z6C1/QCv7yCohSMl1Zi0HJJQ8UPphlUHkz2xVyLkU/pbsJXDI6Rfglp0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hYABtu6T; 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="hYABtu6T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 177821F00A3D; Tue, 8 Sep 2026 12:52:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788871926; bh=rSZ8tKrEC08ITkpjzNS9l4ebnviOJUufaC3/CWJpahI=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=hYABtu6T3zyVtGfrFIIDWUi18QR4g7It4s5CuG+RF1vcR0gpReChCdc4q5EZycnD9 fRh4CtnBtnGODdZY/ABU277UymZ8nhOy31gKpRtW08w+VnMuIBBlqXWD62wzYikjmK RlEsRCYb3J8jX9EmxCEEGm20Afwy2d3c7EQUYhDaoTD9NUr0fFPvtGdQNs+mAC5Ard 5qdBCFgch9pNS3dMVJp14afoHrxxaHyZ63IRIGUN4P3Kcgz09SaSVYoUB/VjRQDCY6 wgnCB1qpvw8WBL5UCj+VOMJvcZLDrKqxUALbqRVvrPUF/ISL8NCfLd+wKMBz+SN8Gj nX9k+MfTymzIw== From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 11/12] mm: make userland page table freeing RCU-safe Reply-To: sashiko-reviews@lists.linux.dev To: =?utf-8?b?TG9yZW56byBTdG9ha2VzIChBUk0p?= Cc: "Alexander Gordeev" , "Vasily Gorbik" , linux-s390@vger.kernel.org, "Christian Borntraeger" , "Heiko Carstens" In-Reply-To: <20260908-rcu-pagetable-freeing-v2-11-1f60b64e878e@kernel.org> References: <20260908-rcu-pagetable-freeing-v2-0-1f60b64e878e@kernel.org> <20260908-rcu-pagetable-freeing-v2-11-1f60b64e878e@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 08 Sep 2026 12:52:05 +0000 Message-Id: <20260908125206.177821F00A3D@smtp.kernel.org> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > Now every architecture has been converted to support > CONFIG_MMU_GATHER_RCU_TABLE_FREE, this configuration option no longer mak= es > any sense to keep around. >=20 > Therefore remove it, and remove all the dead code that existed for > !CONFIG_MMU_GATHER_RCU_TABLE_FREE architectures previously. >=20 > Additionally, CONFIG_MMU_GATHER_TABLE_FREE is no longer necessary, as all > architectures instead use CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE when a custom > __tlb_remove_table() is required, so remove this too. >=20 > A number of architectures only enabled CONFIG_MMU_GATHER_RCU_TABLE_FREE if > CONFIG_MMU was set, however the mmu_gather logic only actually does > something meaningful if CONFIG_MMU is set (mmu_gather.c is only compiled = in > this case, for instance). > [ ... ] > This is all that is guaranteed, however, so naturally it is still incumbe= nt > upon page table walkers to ensure that the page table entries are as > expected. >=20 > Signed-off-by: Lorenzo Stoakes (ARM) Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260908-rcu-pageta= ble-freeing-v2-0-1f60b64e878e@kernel.org?part=3D11