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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 32F46CD5BB1 for ; Mon, 25 May 2026 15:50:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Date:Message-Id:From:Subject:Content-Transfer-Encoding:MIME-Version: Content-Type:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=7DFSewy4HiHsulqVjDY+J795cQvlcQzlXeEXsle8lBQ=; b=XriRKlExdknSgRfll0e9Q0/4we HiOoulx66lg/k2H54DnoZ71LQh1jKC7eKbr6q6qT+eBRD4RkNBSZZ/96GcbmwTokvx4X3XHBfeMUa xfbEU0XuK3h9+uZaFcwxNaKDHqUraib/qyYgHUQzj1GO3pvGziyWLv7J5pJhwKvxOPuRkii8HGyIO +y9bMH30yYhKlsIO3R+V4/dzixWl+bisYMZ/YN9ew0glcC0VDxy/Pk+2nWHYoYiXU4JVL2M5osJTh SZ9Cybst38RWilAO/qTCMJNhoFF43DGjCFgMobEky8QJrhJi/4Dd7DY8YDDZxxHQqZ1JGfg0I2VWR 2rgo2Nbw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wRXZG-0000000HYje-0e1d; Mon, 25 May 2026 15:50:14 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wRXZB-0000000HYiV-44GT for linux-arm-kernel@lists.infradead.org; Mon, 25 May 2026 15:50:10 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id E6F5B601F3; Mon, 25 May 2026 15:50:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 944691F000E9; Mon, 25 May 2026 15:50:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779724208; bh=7DFSewy4HiHsulqVjDY+J795cQvlcQzlXeEXsle8lBQ=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=VjYzFiUbbB+KydlfY9Z4MuBygfHZEOhzzF8hqPM3jzuAT12EAGWi4sWZ5Kj7xTBmG /xgXWuskpWqOfF/++ekEIAsipeAeQb3YtnKrQnv1758Mmm97CNXTov68HsnU7ff+cT 5WPDO01gr5uSuD8EesHTGnWwfCDqLnLRq9HUAX2SED9u5AdOZxvlTTWIODe+Pntcpi bHQnGL28WCVobvfZpLzPe+XKfGpoDvRcskhXnXu/QJRk1AFBymhjlbuU9uCvSG5UbJ ZqD0nShvHeADxBhybW/GnMY1bwvu6WG8sgtinirBkF0AbNyu6WkTYy1he2ImOo86lK Z8JDU7xInsufQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 9389A380AA66; Mon, 25 May 2026 15:50:16 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH 1/8] mm: Add ptep_try_install() for lockless empty-slot installs From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177972421514.2623932.18366712575128006806.git-patchwork-notify@kernel.org> Date: Mon, 25 May 2026 15:50:15 +0000 References: <20260517211232.1670594-2-tj@kernel.org> In-Reply-To: <20260517211232.1670594-2-tj@kernel.org> To: Tejun Heo Cc: void@manifault.com, arighi@nvidia.com, changwoo@igalia.com, ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev, memxor@gmail.com, catalin.marinas@arm.com, will@kernel.org, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, akpm@linux-foundation.org, david@kernel.org, rppt@kernel.org, emil@etsalapatis.com, sched-ext@lists.linux.dev, bpf@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello: This series was applied to bpf/bpf-next.git (master) by Alexei Starovoitov : On Sun, 17 May 2026 11:12:25 -1000 you wrote: > Add ptep_try_install(ptep, new_pte): atomically set *ptep to new_pte > iff it is currently pte_none(). Returns true on success, false if the > slot was already populated or the arch has no implementation. > > The intended caller is the upcoming bpf_arena kernel-side fault > recovery path. The install runs from a page fault and may have to > contend with locks already held by the faulting kernel caller, so > keeping it lock-free via cmpxchg is the safe choice. > > [...] Here is the summary with links: - [1/8] mm: Add ptep_try_install() for lockless empty-slot installs (no matching commit) - [2/8] bpf: Recover arena kernel faults with scratch page (no matching commit) - [3/8] bpf: Add sleepable variant of bpf_arena_alloc_pages for kernel callers https://git.kernel.org/bpf/bpf-next/c/f211c81ddc36 - [4/8] bpf: Add bpf_struct_ops_for_each_prog() https://git.kernel.org/bpf/bpf-next/c/7c48a28c1bbe - [5/8] bpf/arena: Add bpf_arena_map_kern_vm_start() and bpf_prog_arena() https://git.kernel.org/bpf/bpf-next/c/53cc12a2dc88 - [6/8] sched_ext: Require an arena for cid-form schedulers (no matching commit) - [7/8] sched_ext: Sub-allocator over kernel-claimed BPF arena pages (no matching commit) - [8/8] sched_ext: Convert ops.set_cmask() to arena-resident cmask (no matching commit) You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html