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 C846D2E889B; Fri, 25 Jul 2025 11:27:31 +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=1753442851; cv=none; b=TJUI0nhnQEcxhuZuv6cGkDOUR6IqfDA7fEKzieUGOOkGI3TgqCXtey0Pw892TBlrIasjuYjeENUd6OybavtvOlv7tR22oZXsKD0v3C+CYkuYf+KVPnRcmLrgmZdOS4Ysx7dQOXFVXK2b3E8yVcJINIurXPpJqMdAUZt6Zrop/sk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753442851; c=relaxed/simple; bh=+0FqvfHaUmIQOw15n52x7426VXgjnN+qBk8JbTg7lzs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZOYpsP6wxNM489wyDzGhXoTcQ227PaSVo5iSxz5dm/LIJ+/ASOejFQUaHvpKQ/9g7JBZQaK9yZuV6dG8youwd3isELQXvnE6WiBrstfmT4v+9Z329z95LHnHObK1QRqZBzB8U2VucTGc46b/+6GklfU1Ylnu/x5N6cwukAJCUwM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=a91dA7v9; 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="a91dA7v9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 89AA1C4CEF5; Fri, 25 Jul 2025 11:27:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753442851; bh=+0FqvfHaUmIQOw15n52x7426VXgjnN+qBk8JbTg7lzs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a91dA7v9YKWWdgBOZsJIqRvfCuoPL33JdzhnAczZNECwUo81+rzd7RxBD/6uPYPJs 3CBRkJjy+is/3C6QS0EQoK46KxGLovfpAsEWw19oTvx+vrrB1zhzfQ0DVFCngn0639 R39XN+PTBaRJN+0tn75MZyKKg7JNXqOi2t1+tX+lnKGPB5RFxfQTmW/5kbi8Tk3Arz bw8nlq4ufJbn1mtSMBpbU45eYLGpITpxX00i80SWIv6GGm5X0MrluiMRs8tiVztksu JNnJDAqsLuUQTILyOlfI9xBcZBnPfCAQUgdVK9vts15oB4SDr1iTWaxg1tXrlzGtVB F68uHxyFfRqlg== From: Christian Brauner To: Linus Torvalds Cc: Christian Brauner , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [GIT PULL 09/14 for v6.17] vfs bpf Date: Fri, 25 Jul 2025 13:27:15 +0200 Message-ID: <20250725-vfs-bpf-a1ee4bf91435@brauner> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250725-vfs-617-1bcbd4ae2ea6@brauner> References: <20250725-vfs-617-1bcbd4ae2ea6@brauner> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2873; i=brauner@kernel.org; h=from:subject:message-id; bh=+0FqvfHaUmIQOw15n52x7426VXgjnN+qBk8JbTg7lzs=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWQ0Z4m6/T6j68jjnC2XznXBX6sy7Zn5js4cdyOL2Weu3 wmXcr7XUcrCIMbFICumyOLQbhIut5ynYrNRpgbMHFYmkCEMXJwCMJHAGYwMvyTfmItl9yTZPX+b rD89z7Oq1HbjrCm5sd9+P7rhqbvpCsN/z6inxZPSb8y3aGCTE7s69ZXrCZYGOXPmTaFSl7cbTVT lBQA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Content-Transfer-Encoding: 8bit Hey Linus, /* Summary */ These changes allow bpf to read extended attributes from cgroupfs. This is useful in redirecting AF_UNIX socket connections based on cgroup membership of the socket. One use-case is the ability to implement log namespaces in systemd so services and containers are redirected to different journals. Please note that I plan on merging bpf changes related to the vfs exclusively via vfs trees. /* Testing */ gcc (Debian 14.2.0-19) 14.2.0 Debian clang version 19.1.7 (3) No build failures or warnings were observed. /* Conflicts */ Merge conflicts with mainline ============================= No known conflicts. Merge conflicts with other trees ================================ No known conflicts. The following changes since commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494: Linux 6.16-rc1 (2025-06-08 13:44:43 -0700) are available in the Git repository at: git@gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.17-rc1.bpf for you to fetch changes up to 70619d40e8307b4b2ce1d08405e7b827c61ba4a8: selftests/kernfs: test xattr retrieval (2025-07-02 14:18:22 +0200) Please consider pulling these changes from the signed vfs-6.17-rc1.bpf tag. Thanks! Christian ---------------------------------------------------------------- vfs-6.17-rc1.bpf ---------------------------------------------------------------- Christian Brauner (3): kernfs: remove iattr_mutex Merge patch series "Introduce bpf_cgroup_read_xattr" selftests/kernfs: test xattr retrieval Song Liu (3): bpf: Introduce bpf_cgroup_read_xattr to read xattr of cgroup's node bpf: Mark cgroup_subsys_state->cgroup RCU safe selftests/bpf: Add tests for bpf_cgroup_read_xattr fs/bpf_fs_kfuncs.c | 34 +++++ fs/kernfs/inode.c | 70 ++++----- kernel/bpf/helpers.c | 3 + kernel/bpf/verifier.c | 5 + tools/testing/selftests/bpf/bpf_experimental.h | 3 + .../selftests/bpf/prog_tests/cgroup_xattr.c | 145 +++++++++++++++++++ .../selftests/bpf/progs/cgroup_read_xattr.c | 158 +++++++++++++++++++++ .../selftests/bpf/progs/read_cgroupfs_xattr.c | 60 ++++++++ tools/testing/selftests/filesystems/.gitignore | 1 + tools/testing/selftests/filesystems/Makefile | 2 +- tools/testing/selftests/filesystems/kernfs_test.c | 38 +++++ 11 files changed, 486 insertions(+), 33 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/cgroup_xattr.c create mode 100644 tools/testing/selftests/bpf/progs/cgroup_read_xattr.c create mode 100644 tools/testing/selftests/bpf/progs/read_cgroupfs_xattr.c create mode 100644 tools/testing/selftests/filesystems/kernfs_test.c