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 C48045616D3 for ; Tue, 22 Sep 2026 15:52:48 +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=1790092369; cv=none; b=kENs1TjuR0oBQMgLypl6KrZ6YxqNnIkl1ZEqKyVRpCSntMlSvMCdYNiXuoBbT4ft1WxqeZzzumxAbwsUGz4SDWfUgs2eQVstmrXzz5t/sj0bAYWXW+sDB4d5hCmJg2o9b9dDUEoiyDBbHU82OGRkiG1nHSmhlAWAfuQzPlmpy8Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790092369; c=relaxed/simple; bh=magqmf1W8HjyLGooJP5XWK+Edjhg207/kPru+WZ3v3A=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=hlvjBpdY2qC2w4VuWvFohoRWapcMvOHYfQfdUQ5qPSrvBS8OGlyG1eZ4g5mAQ/0+4LkzHsvmYQovVsda/BQCciON3WbJKTkcBj+Pb8hVjvAPI2PyA1u2i0CejXytsdgC2PRV1uDhuHKxzNZxrYLiavID/hoZOe5d6ki8xTGO2fE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bu6U9DbZ; 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="bu6U9DbZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A9FD1F000FF; Tue, 22 Sep 2026 15:52:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790092368; bh=magqmf1W8HjyLGooJP5XWK+Edjhg207/kPru+WZ3v3A=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=bu6U9DbZjuXcbC9IcgzP1fvBoTCBGpF4JYZFfEyYzJzRfdTlteYczgdTxcBqF4wT+ jUrkuigFOzbH7Hvb1NtnPQnGNpdpiKRF4xiD6pDZb/EbTooaGADkDdVIDZN++MiWCt u1GSteEnLhEp9EMbTOZymH3n6dsYVleKc1yFGH0MJotq735b8FT00cp+2wGhWESqmq xXaL24VrsTDelyv2GfpHrwCRBETS5cJC/fxJj9krJ1rVvA2XTmKZISsbJYxyOc8y1V CjLhk5MXTmsGB+YmdBu1rwnay+mx4mfsRte9al2o9J/P6KgKPzDXrKSj4RHi5518WD AT00/wEnzcH/A== From: sashiko-bot@kernel.org Subject: Re: [PATCH v4 09/12] mm: enable MMU_GATHER_RCU_TABLE_FREE for m68k-motorola Reply-To: sashiko-reviews@lists.linux.dev To: =?utf-8?b?TG9yZW56byBTdG9ha2VzIChBUk0p?= Cc: linux-s390@vger.kernel.org, "Vasily Gorbik" , "Christian Borntraeger" , "Heiko Carstens" , "Alexander Gordeev" In-Reply-To: <20260922-rcu-pagetable-freeing-v4-9-fe1ad1f1e303@kernel.org> References: <20260922-rcu-pagetable-freeing-v4-0-fe1ad1f1e303@kernel.org> <20260922-rcu-pagetable-freeing-v4-9-fe1ad1f1e303@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 22 Sep 2026 15:52:47 +0000 Message-Id: <20260922155248.2A9FD1F000FF@smtp.kernel.org> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > sun3 and coldfire are already supported, however motorola requires a litt= le > more care. >=20 > Here, custom table removal logic is required, so > CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE is enabled for m68k-motorola. >=20 > Firstly as part of this change, the page table level must be communicated > to the underlying __tlb_remove_table() implementation. >=20 > Take advantage of the fact that page tables are aligned by more than enou= gh > to permit setting TABLE_PTE or TABLE_PMD in the low bits of the pointer, > and store this there. >=20 > Then update __pte_free_tlb() and __pmd_free_tlb() to pass this through, > then have __tlb_remove_table() decode this and pass it to > [ ... ] > This forms part of an overall effort to switch every architecture to this > mode. >=20 > Acked-by: Kiryl Shutsemau (Meta) > 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/20260922-rcu-pageta= ble-freeing-v4-0-fe1ad1f1e303@kernel.org?part=3D9