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 4976927FD4F for ; Tue, 1 Sep 2026 11:30:51 +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=1788262253; cv=none; b=tYobEXjMmkorWrDURoK45pT2Im8HcgALDzSkiYdAAbCe6X7Cl2KJw0pqj9Rgc+l/p5QB8xCJfBBkgOgUqi6my8q1r+aaov621kGnW3e1f23G6j1ImeydQ4o7/TX666m/g6pcWhVQJ4hMnYbjXsrf2x3/moRK6YmQXf71KiO+Jy8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788262253; c=relaxed/simple; bh=Y3F/Fo8B8Hy7+3V90VBdAlM+hH67dK3FhDs0omPfDEc=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=E/hFkUan/WD+Dvlv9o8EWi9WAXnRJbT4BdmlpLpzOyRkIOYZo4KAUB5IVBuZ8kYLkDtzRw/mPn9wSQ4R6ZZSINnzR/GXUKlIzfJOVC3/qgLPchg5GGrQUaSR49oRBnq3EAMOYI9nMlWbADChsy7zyTDtR2v9faJoaDt5ZvAq6/0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kADnAsrx; 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="kADnAsrx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2256B1F000E9; Tue, 1 Sep 2026 11:30:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788262251; bh=Y3F/Fo8B8Hy7+3V90VBdAlM+hH67dK3FhDs0omPfDEc=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=kADnAsrx08g3gjuh76EqyvSI7m5f0Z5gHnrbPRa+/Y3gkaJY+O4IHJdkRUcKh+xm/ k+zVoXTKBooXK8rEyxWYvbyWpl1lnz15N2sptaRyYPD3dSz7gHYGSrOBJSTOxYniTp c/BPNvEew+gR4rtNFtlJvhPZ1dK5d94I7cFTNX0P44yB2uM0toigkcR7n601LTTkPb 0O8TXymRWqmcHVC9izhSwhpvWnoGKl2EeLZ75ggyuYlSZGQSf8kxFEn4izwRds4OOM JUm7Vxv9kCHOR1PuytpmqEmZRrRSyK1yMtv8gu5mAcn9dBKksEbNjyi3d0CM5NF+UM R7T+wVGDfWPcQ== From: sashiko-bot@kernel.org Subject: Re: [PATCH 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: "Heiko Carstens" , linux-s390@vger.kernel.org, "Vasily Gorbik" , "Christian Borntraeger" , "Alexander Gordeev" In-Reply-To: <20260901-rcu-pagetable-freeing-v1-9-5456a81c8212@kernel.org> References: <20260901-rcu-pagetable-freeing-v1-0-5456a81c8212@kernel.org> <20260901-rcu-pagetable-freeing-v1-9-5456a81c8212@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 01 Sep 2026 11:30:50 +0000 Message-Id: <20260901113051.2256B1F000E9@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 > [ ... ] >=20 > This forms part of an overall effort to switch every architecture to this > mode. >=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/20260901-rcu-pageta= ble-freeing-v1-0-5456a81c8212@kernel.org?part=3D9