From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794775723; b=W5VoyJZI8b3epZPNUAs0kbfP3ZYwjOf7hCNr9UF3JUUG334RFfHXZP7vREU9ALpTTsum SAF67a0wSTnFscndlOAMcZYf7n8fppLF5NTce6je6biv6ORsOo9eIcNmE27hioGD3aF7j k95CvvvbSN8lZkp6E3diWQ73pfw7iKAF1aMrkP5zxaI1rsg5ODS5YjdOS08q42oshgqjk bsAvX7ROJ1PywwGz/YDSO5Pm8EEtw6eB+mSAymunapItL+0lI6XTDnqKsU/EN86QkRhFL +tXeKSBlg7LW65Uy0H2IGgOTIpPk6yJafWPkuarov+kGYNXb2w+EIWwoDPvH3+W1yaQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794775723; h=Received:DKIM-Signature:Date:Message-ID:From:To:Cc:Subject; bh=YXZFSoyqHDpxDPbL85Hd+JvHtAklYY9AhdF+mYJH6M4=; b=xT6A3qcJBhOIb+xJ7z+oK0bMFzl7k43TgleNKWCSFGqAT8RgeDPlwNTcmA/4y0u+b4lE V80w90Y/java2aLaH/a0R/ZtzQBWN+Xyz6iz/AeSAQ7R955byn/byqKQUbrJKtXTOpI6c zZT+3uzkv2IwmoPrZ6BFejrjUFvyWBQBJaTJ2WMX/HUdp/LVfNkKZVkjuf824UJdwwcsJ MDXU07Ri13pvsld1yO06EUHVhmjSO4Po0psw6H6WVC/Z5Mp9puSjMaCEzLTwchspZfp+N lQ8V/5w9ysFqQb72au2XDHlz191PX3Wy+9VMzqBGrMzsmoLeRKL4wbnOx87V+P9OjSQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=CL3+OQ3K; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3BAF8606A323; Sun, 15 Nov 2026 20:48:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=CL3+OQ3K Received: by smtp.kernel.org (Postfix) with ESMTPSA id A39DA1F000C4; Sun, 15 Nov 2026 20:48:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794775722; bh=YXZFSoyqHDpxDPbL85Hd+JvHtAklYY9AhdF+mYJH6M4=; h=Date:From:To:Cc:Subject; b=CL3+OQ3Kg1EMfhonk48DtoCk4qu0AVNYDJxGCbKtLtAGloK7rDD+Or0Fh1HofXf7t I/Q3V0IbNaBqF8gG5jQhTutrZSsucOx6IemfHnEFaVqV9V+0QC2EUnvNJfoNLBJtIp zv4HUuY/M7M3HOit9QGea8+HQCzinOX3Q1VN95nRexRCva/yZqNWdHd0Cc0OXpFVjy L5q30ZnOJJdXh1UhFw0/yqcpPDOmPP0Pt3SO3250fGycYLBr9ivvZ1/V7MvZQb/fKf ov+7e9mKiSB3SEzWUPmg+ewc5bC9WTKXd/S7sgOj0s0RAY9OxdPZGY7Tm39Q6BJNS8 o9RN2AZETuSlA== Date: Sun, 15 Nov 2026 10:48:42 -1000 Message-ID: <7a3f079589dddf1444f015b874f1b9ed@kernel.org> From: Tejun Heo To: Linus Torvalds Cc: Johannes Weiner , Michal Koutny , Waiman Long , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [GIT PULL] cgroup: Fixes for v7.4-rc2 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list Hello, The following changes since commit 518cec2def9992192291f5028edc077fb2e475e9: cgroup/cpuset: Integrate compute_partition_effective_cpumask() into compute_effective_cpumask() (2026-10-26 07:44:43 -1000) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git tags/cgroup-for-7.4-rc2-fixes for you to fetch changes up to acec9637e03ca54bd3c3a0c1a6ad5c6dfa07c0df: cgroup/cpuset: Don't revive invalid partition without active CPU on hotplug (2026-11-15 10:15:12 -1000) ---------------------------------------------------------------- cgroup: Fixes for v7.4-rc2 - A file notification racing the file's removal could re-arm the notification timer after it was shut down, corrupting the timer wheel or firing on freed memory. - The v1 freezer could leave an exiting task frozen forever after its cgroup was thawed or removed. - With memcg built without the block cgroup controller, memcg reclaim waited on writeback and could deadlock against a filesystem freeze. memcg now selects the controller. - cpuset partition state could go wrong when CPUs move between nested partitions or go offline: isolated CPUs leaked or went missing, invalid partitions kept exclusive CPUs or came back with no usable CPU, and expanding a remote partition could fail. Separately, a forked child could inherit a corrupted memory node mask. ---------------------------------------------------------------- Chen Ridong (1): cpuset: add early empty cpumask check in partition_xcpus_add/del Christian Brauner (1): memcg: make MEMCG select BLK_CGROUP Mani Tofigh (2): cgroup: arm the notify timer only while the file exists cgroup/freezer: walk exiting tasks in the v1 freezer Ridong Chen (5): cgroup/cpuset: Reset partition data when an invalid partition stays invalid cpuset: settle isolation state when CPUs are given back to parent cpuset: generalize the validate_partition() interface cgroup/cpuset: Remove redundant WARN_ON_ONCE() in remote_cpus_update() cgroup/cpuset: Don't revive invalid partition without active CPU on hotplug Tejun Heo (1): cgroup/freezer: Fix exiting tasks left frozen forever after rmdir Waiman Long (6): cgroup/cpuset: Fix incorrect CPU accounting with parent's effective_xcpus expansion cgroup/cpuset: Recompute effective cpumask in update_cpumasks_hier() after calling update_parent_effective_cpumask() cgroup/cpuset: Do housekeeping check when isolated child with root parent may get more xcpus selftests/cgroup: Fix "test_cpuset_prs.sh -v" failures cgroup/cpuset: Protect current->mems_allowed read in cpuset_fork() cgroup/cpuset: Correctly set isolated_cpus when switching partition state init/Kconfig | 1 + kernel/cgroup/cgroup.c | 22 +- kernel/cgroup/cpuset.c | 316 +++++++++++----------- kernel/cgroup/legacy_freezer.c | 40 ++- tools/testing/selftests/cgroup/test_cpuset_prs.sh | 46 +++- 5 files changed, 251 insertions(+), 174 deletions(-) -- tejun