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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91E07EB64D7 for ; Fri, 16 Jun 2023 16:30:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244144AbjFPQaW (ORCPT ); Fri, 16 Jun 2023 12:30:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229935AbjFPQaW (ORCPT ); Fri, 16 Jun 2023 12:30:22 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40A21297A for ; Fri, 16 Jun 2023 09:30:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id CD2FC61B95 for ; Fri, 16 Jun 2023 16:30:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 2EEA5C433C0; Fri, 16 Jun 2023 16:30:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686933020; bh=5uu+YHj0xfgHXctEozIuOa6T5BFR5lY8KLB5ut6qO2M=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=nkO/pZ92LpgE8VJfscCdh1Pc2ImBDE4RFPJ854rBJ4z6NnHvz+H5MlvzWzxYqVH+Z q3YEn83LWKy1wx/JJ6/tSKYTcWcHnAFcBemEyBpYc6eLfGXqQ2UpZC9EbW519PnrSi eNaGx8JZEEUaseKy9v3e6lB2dWykrDzdpGj91r04ZlgD7oaJPmYpq+2ec1genoNIXu XnL2AbVd87NyMlMkuI6uQ+DvCNmGig+X68AGDJuqIBFMMr5yeFqqpIZcb0eLg4eB12 oWbd2sNxUmFACrk8mWmkIxdshvvT8isIhaxMZsHJgCinohKAh+V5a31LPodTcw5iAC e03zN1bwnC42Q== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id 084F5E21EEA; Fri, 16 Jun 2023 16:30:20 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v4] bpf: Remove in_atomic() from bpf_link_put(). From: patchwork-bot+netdevbpf@kernel.org Message-Id: <168693302002.15027.13621981423578755110.git-patchwork-notify@kernel.org> Date: Fri, 16 Jun 2023 16:30:20 +0000 References: <20230614083430.oENawF8f@linutronix.de> In-Reply-To: <20230614083430.oENawF8f@linutronix.de> To: Sebastian Andrzej Siewior Cc: andrii.nakryiko@gmail.com, alexei.starovoitov@gmail.com, bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, paulmck@kernel.org, peterz@infradead.org, tglx@linutronix.de, linux-fsdevel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hello: This patch was applied to bpf/bpf-next.git (master) by Andrii Nakryiko : On Wed, 14 Jun 2023 10:34:30 +0200 you wrote: > bpf_free_inode() is invoked as a RCU callback. Usually RCU callbacks are > invoked within softirq context. By setting rcutree.use_softirq=0 boot > option the RCU callbacks will be invoked in a per-CPU kthread with > bottom halves disabled which implies a RCU read section. > > On PREEMPT_RT the context remains fully preemptible. The RCU read > section however does not allow schedule() invocation. The latter happens > in mutex_lock() performed by bpf_trampoline_unlink_prog() originated > from bpf_link_put(). > > [...] Here is the summary with links: - [v4] bpf: Remove in_atomic() from bpf_link_put(). https://git.kernel.org/bpf/bpf-next/c/ab5d47bd41b1 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html