[PATCH bpf-next v3 0/4] Support RENAME_EXCHANGE on bpffs
flat view
STALE1820d
LANDED
From: Lorenz Bauer <hidden>
Date: 2021-10-28 09:48:23
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), filesystems (vfs and infrastructure), kernel selftest framework, memory management, the rest, tmpfs (shmem filesystem) · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Alexander Viro, Christian Brauner, Shuah Khan, Shuah Khan, Andrew Morton, Linus Torvalds, Hugh Dickins
Status: Landed in mainline.
Revision v3 (3 revisions archived).
Revisions (3)
- v1
- v2 [diff against previous]
- v3 current [diff against previous]
Add support for renameat2(RENAME_EXCHANGE) on bpffs. This is useful for atomic upgrades of our sk_lookup control plane. v3: - Re-use shmem_exchange (Miklos) v2: - Test exchanging a map and a directory (Alexei) - Use ASSERT macros (Andrii) Lorenz Bauer (4): libfs: move shmem_exchange to simple_rename_exchange libfs: support RENAME_EXCHANGE in simple_rename() selftests: bpf: convert test_bpffs to ASSERT macros selftests: bpf: test RENAME_EXCHANGE and RENAME_NOREPLACE on bpffs fs/libfs.c | 29 ++++++- include/linux/fs.h | 2 + mm/shmem.c | 24 +----- .../selftests/bpf/prog_tests/test_bpffs.c | 85 ++++++++++++++++--- 4 files changed, 105 insertions(+), 35 deletions(-) -- 2.32.0