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 05B60198845; Mon, 26 Aug 2024 22:58:27 +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=1724713108; cv=none; b=MQXJeWgZIxKp3IrMElnIQ5whqgAHSX+J/5nMppI1brvoKWllaQJP4G1EbholvSABhp/clAcWEYBXzcKDodRSTAnCnEUKaTftloMfFcAC2RoqjBuoJwMEcfFiT4jIRP8UbfUDoQnrXbzO54raKZfZuEK2vQFQ7jfydZiC36t+ouI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724713108; c=relaxed/simple; bh=e6lLBcx4ERTTLg8tRujSMSZE/P5cT3AkTyBpKv97ESU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=a89MgEJD3r/0SfDEQe9vpzHhUp0GdgAXhxn9Q9yhbsNl8L5mb02/HH2GLMw6sfeH8CtmuiOiZpGDqIyRuQzPjAAAHo8sqJiGBNtZ0cqGEEVLp//UrsC4TFMNdkstNjTCUetRjg4OxXn48hbvn5e885kdmkmwaqa2ogCtBb2PCGY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FTFbxB8S; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FTFbxB8S" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5F48FC8B7A1; Mon, 26 Aug 2024 22:58:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724713107; bh=e6lLBcx4ERTTLg8tRujSMSZE/P5cT3AkTyBpKv97ESU=; h=From:To:Cc:Subject:Date:From; b=FTFbxB8STnSYaaw04zm/Ayp3R2ovXuQCGJCe3vU5hfYRb6S9b6PLTJo0M4lLSVfCv W4rKGmb1xJjum0w06xylUoRlZjF2Fr7s9OUFGqvCHoq7dY4xSp6gmEsOZjXUPQvJJM CW91ItY+M/vmmEucyGIRUfVzVaQzrB4V3w+N39PNd9MwH1XMca04zfEoaXeaxCfPNA bRBxa4apHRS6dx/Zi20ZSbcSUW1e1MPw0w47rgGuHlxi3wysOwlhNbKsX8aUBOC22s J0yIIRexDd8w2gR6iWWbVAZv8HMG2JLfHl5kM/HZ6BJ4O56mQAWKXntfEUBaFGPQu4 6iayWTYkWgmBQ== From: Tejun Heo To: void@manifault.com, peterz@infradead.org, mingo@redhat.com Cc: cgroups@vger.kernel.org, lizefan.x@bytedance.com, hannes@cmpxchg.org, mkoutny@suse.com, kernel-team@meta.com, linux-kernel@vger.kernel.org Subject: [PATCHSET v2 sched_ext/for-6.12] sched_ext: Add cgroup support Date: Mon, 26 Aug 2024 12:57:38 -1000 Message-ID: <20240826225822.791578-1-tj@kernel.org> X-Mailer: git-send-email 2.46.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This is v2 of sched_ext cgroup support patchset. Changes from v1 (http://lkml.kernel.org/r/20240808002550.731248-1-tj@kernel.org) are: - cgroup interface file visiblity toggling based on SCX_OPS flags is dropped as it caused more confusion than helping anything. sched_ext now just warns when unimplemented features are used. This was originally taken from the cgroup integration part of the sched_ext v6 patchset: http://lkml.kernel.org/r/20240501151312.635565-1-tj@kernel.org This patchset is on top of sched_ext/for-6.12 (9ad2861b773d ("sched_ext: Allow dequeue_task_scx to fail")) and contains the following patches: 0001-sched-Expose-css_tg.patch 0002-sched-Make-cpu_shares_read_u64-use-tg_weight.patch 0003-sched-Introduce-CONFIG_GROUP_SCHED_WEIGHT.patch 0004-sched_ext-Add-cgroup-support.patch 0005-sched_ext-Add-a-cgroup-scheduler-which-uses-flattene.patch 0001-0003 are sched core preparations. Straightforward. No functional changes. 0004 adds cgroup support to sched_ext. 0005 implements an example scheduler which uses the cgroup support. The patchset is also available in the following git branch: git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git scx-cgroup-v2 diffstat follows. Thanks. include/linux/sched/ext.h | 3 init/Kconfig | 10 kernel/sched/core.c | 98 +++- kernel/sched/ext.c | 519 ++++++++++++++++++++++++- kernel/sched/ext.h | 22 + kernel/sched/sched.h | 14 tools/sched_ext/Makefile | 2 tools/sched_ext/README.md | 12 tools/sched_ext/include/scx/common.bpf.h | 1 tools/sched_ext/scx_flatcg.bpf.c | 949 ++++++++++++++++++++++++++++++++++++++++++++++ tools/sched_ext/scx_flatcg.c | 233 +++++++++++ tools/sched_ext/scx_flatcg.h | 51 ++ tools/testing/selftests/sched_ext/maximal.bpf.c | 32 + 13 files changed, 1906 insertions(+), 40 deletions(-) -- tejun