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 9AD294BAA11 for ; Tue, 8 Sep 2026 12:45:53 +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=1788871554; cv=none; b=ABAejh4fZoMVzz2E5rabao1K3W9BzLtYUtfghlfdWgy+q770fbU2UuEuPPQEp0irEJAE9JshXIDIVofBqKkm6yZrvcbJhI+FmZFTm+VYidPp6ohKIXsvgt1uOddTA7rBDoWBfbcwqY8PVGPVt601eHUue4ZLl0jcOgj4QgxNceA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788871554; c=relaxed/simple; bh=NFt1W/ZDUnMJRdwmXneL7pwaAMBY8HDHu0XqwNArGoA=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=D/VrDasU9aR/keMJaisAFl1DNfjUfPR/DDml2scWCv0zRgI6Iu2Cmi8LK6H9thVeBkiA7FC/vFaIiWGnwf9pxelQ0vzj4gDt1coAz6JVlPd5UrO1LptbnxsnGevWH4EW4fO/FMro9WCqjEYr2Rr+jG8qwXdoEs3yy8ogIPZnMhE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dL2GT6ps; 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="dL2GT6ps" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BD7451F00A3E; Tue, 8 Sep 2026 12:45:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788871553; bh=NFt1W/ZDUnMJRdwmXneL7pwaAMBY8HDHu0XqwNArGoA=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=dL2GT6psh6nvF0fbH9IZp57brYXZ68fY78fxJWHE1/aNs+OeNYTAEEgi0mqvWxEbW 7TM9eAlXd9yMmcUb1zpw3qv//NoaW76l99+O/pV6SWZX1G9yf/VwhD/FhrJPRbZjob 4ca0h2P13PHjGgb2WEZmC4U5aMYMxavgQ1PX9hYpsfo4yGB8q4h8tIvsfMXM5z1a0l uQSMTzC0F+21r374arrJelLzdJLvhNjYKApAxHYMruPcrG1eT4sYI1As/XBacIr7WT 1Edt19AFtQHt3n3Ms7UkxBQYmBtCN2e8vGuLxH897Ge+dem22vJNrHog/jdwHwX8fX duzHYQP556AMA== From: sashiko-bot@kernel.org Subject: Re: [PATCH v2 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: "Vasily Gorbik" , "Heiko Carstens" , linux-s390@vger.kernel.org, "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20260908-rcu-pagetable-freeing-v2-9-1f60b64e878e@kernel.org> References: <20260908-rcu-pagetable-freeing-v2-0-1f60b64e878e@kernel.org> <20260908-rcu-pagetable-freeing-v2-9-1f60b64e878e@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 08 Sep 2026 12:45:52 +0000 Message-Id: <20260908124552.BD7451F00A3E@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/20260908-rcu-pageta= ble-freeing-v2-0-1f60b64e878e@kernel.org?part=3D9