From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9A5B7C88E75 for ; Tue, 15 Sep 2026 11:50:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C08E210FC2A; Tue, 15 Sep 2026 11:50:26 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="K53ZeQCF"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6BB8810FC25 for ; Tue, 15 Sep 2026 11:50:25 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 4C0B741256; Tue, 15 Sep 2026 11:50:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DF7B31F000FF; Tue, 15 Sep 2026 11:50:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789473025; bh=+t+FFRs/FSCskcUDJ5SBPkwP/MmkDDT89W6QZ8CQfY0=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=K53ZeQCFgiRlmkmUKqyt03ueVesYZEQr8ZHRmEnHJr7bteBPMY+FhF3KYLtuCparh nKgFz0/6jbq1bui4jC+jYX4ySwDgwyBFWSGcoZrPkCnnSxGxTvfC6BSUPgQq6hQvNN +1Spfhekga2XDw3G/J02TP4WSUtA8F4az2wYUgLljPdaWE7BVEbc0aUoQxQBuF0+j7 SIyPhVaxFVjk05zS3THf3p+jtDoLWiEkH1QK9B2j4QqMORMMx/IRGI5cyQTCspKNmd 5UGZ+jgOkWGk3ahuQaW3stL2pre2KPKFH28rNWpoqvzsKrFKXAxDwAFKyj9oMjB17X ecSlXehy4baoQ== From: sashiko-bot@kernel.org Subject: Re: [PATCH RFC POC 03/50] alpha: commit fds on syscall exit To: "Linus Torvalds" , "Christian Brauner" Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, "Jens Axboe" , linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, kvm@vger.kernel.org, sparclinux@vger.kernel.org, linux-hyperv@vger.kernel.org, "David Airlie" , linux-mm@kvack.org, bpf@vger.kernel.org, "Ingo Molnar" , "Michael S. Tsirkin" , linux-hexagon@vger.kernel.org, linux-parisc@vger.kernel.org, "Jan Kara" , linux-csky@vger.kernel.org, "Oleg Nesterov" , linux-snps-arc@lists.infradead.org, linux-m68k@lists.linux-m68k.org, dri-devel@lists.freedesktop.org, "Eugenio Perez" , linux-sh@vger.kernel.org, =?utf-8?b?Q2hy?= =?utf-8?b?aXN0aWFuIEJyYXVuZXIgKEFtdXRhYmxlKQ==?= , io-uring@vger.kernel.org, "Peter Zijlstra" , "Alexander Viro" , linux-arm-kernel@lists.infradead.org, linux-um@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-gpio@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "Jann Horn" , virtualization@lists.linux.dev, linux-alpha@vger.kernel.org, kexec@lists.infradead.org In-Reply-To: <20260915-work-fd-reserve-unify-folded-v1-3-4d5217d6b246@kernel.org> References: <20260915-work-fd-reserve-unify-folded-v1-0-4d5217d6b246@kernel.org> <20260915-work-fd-reserve-unify-folded-v1-3-4d5217d6b246@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 15 Sep 2026 11:50:23 +0000 Message-Id: <20260915115023.DF7B31F000FF@smtp.kernel.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" > Add TIF_FD_SLOTS and test it once the untraced system call has stored > its result. A task that reserved descriptors calls syscall_trace_leave() > and joins ret_from_sys_call with the flag gone. >=20 > We mirror the traced error path where the switch stack is set up and the > return address and the syscall restart state are placed in callee-saved > registers. >=20 > Btw, let's remove alpha... It's a pain. >=20 > Signed-off-by: Christian Brauner (Amutable) Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260915-work-fd-re= serve-unify-folded-v1-0-4d5217d6b246@kernel.org?part=3D3