From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 86F3584DE9; Thu, 11 Jul 2024 09:35:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720690544; cv=none; b=qlKFQuejueMomtTL2CQtpicUE7kNnUuojq7gFBK6MQfmJDKAa8jb+eubgqwumAiU8FeOduQc3wSX89F7J6zsctqL3SQXP4NeBAbnZd+kwFQgZwP9UQLl/j4RQl3yjw92/fE/js7tfwcqlrcb8BYZH0zfduPMxYzcZP/peFQbS5c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720690544; c=relaxed/simple; bh=HeF1FWhP69kv9E1fMuc4FOLNyLItrBAvpmRXN57Uaho=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=L0Ug000ALwblaWKz5X41LZNNNybP1vDtnvkotkUVTvR4o+XJGcL9erMdgyIOx62F9WyWB0MNxMAHWE0e/hjROVBWvVz3/Y8bcyXk+bKxvaX2A9J8oOCWMudUddJd/C6QScVEh7OkU66bjhJ4FXj3tRysjmymoAocq0JM7A9TyV4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UknATB7w; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="UknATB7w" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7DCF5C116B1; Thu, 11 Jul 2024 09:35:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1720690544; bh=HeF1FWhP69kv9E1fMuc4FOLNyLItrBAvpmRXN57Uaho=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=UknATB7w78ctXY/P8OTLsLo9lXZZBQ3gpL/2tS3iqkwSfQhJCxZbjwvdLfqA4OhVJ CbR7P+o/sKA6/wTMUs7jSu6F6mSKGyer1K4ajK08cMjx1aw+2ELReaHPyRbBp1v+E2 /w33jK3NTWJEYzxiJzdnk0wQY178bWNFrU+7n+bg= Date: Thu, 11 Jul 2024 11:35:41 +0200 From: Greg Kroah-Hartman To: Michael Ellerman Cc: stable@vger.kernel.org, patches@lists.linux.dev, Benjamin Gray , Sasha Levin Subject: Re: [PATCH 6.9 057/197] powerpc/dexcr: Track the DEXCR per-process Message-ID: <2024071133-jaws-customs-79ce@gregkh> References: <20240709110708.903245467@linuxfoundation.org> <20240709110711.171129088@linuxfoundation.org> <87v81e6993.fsf@mail.lhotse> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87v81e6993.fsf@mail.lhotse> On Tue, Jul 09, 2024 at 10:27:20PM +1000, Michael Ellerman wrote: > Greg Kroah-Hartman writes: > > 6.9-stable review patch. If anyone has any objections, please let me know. > > > > ------------------ > > > > From: Benjamin Gray > > > > [ Upstream commit 75171f06c4507c3b6b5a69d793879fb20d108bb1 ] > > > > Add capability to make the DEXCR act as a per-process SPR. > > > > We do not yet have an interface for changing the values per task. We > > also expect the kernel to use a single DEXCR value across all tasks > > while in privileged state, so there is no need to synchronize after > > changing it (the userspace aspects will synchronize upon returning to > > userspace). > > > > Signed-off-by: Benjamin Gray > > Signed-off-by: Michael Ellerman > > Link: https://msgid.link/20240417112325.728010-3-bgray@linux.ibm.com > > Stable-dep-of: bbd99922d0f4 ("powerpc/dexcr: Reset DEXCR value across exec") > > This is listed as a dep, but I don't see that commit (bbd99922d0f4) > queued up? > > This series included user-visible changes including new prctls, it > shouldn't be backported piecemeal. > > I think this series shouldn't be backported unless someone explicitly > wants it. Thanks for the review, now removed. greg k-h