> On Nov 12, 2024, at 12:25 AM, Song Liu <song@xxxxxxxxxx> wrote: > > bpf inode local storage can be useful beyond LSM programs. For example, > bcc/libbpf-tools file* can use inode local storage to simplify the logic. > This set makes inode local storage available to tracing program. > > 1/4 is missing change for bpf task local storage. 2/4 move inode local > storage from security blob to inode. > > Similar to task local storage in tracing program, it is necessary to add > recursion prevention logic for inode local storage. Patch 3/4 adds such > logic, and 4/4 add a test for the recursion prevention logic. > > Song Liu (4): > bpf: lsm: Remove hook to bpf_task_storage_free > bpf: Make bpf inode storage available to tracing program > bpf: Add recursion prevention logic for inode storage > selftest/bpf: Test inode local storage recursion prevention I accidentally sent some older .patch files together with this set. Please ignore this version. I will resend v2. Thanks, Song > > fs/inode.c | 1 + > include/linux/bpf.h | 9 + > include/linux/bpf_lsm.h | 29 --- > include/linux/fs.h | 4 + > kernel/bpf/Makefile | 3 +- > kernel/bpf/bpf_inode_storage.c | 185 +++++++++++++----- > kernel/bpf/bpf_lsm.c | 4 - > kernel/trace/bpf_trace.c | 8 + > security/bpf/hooks.c | 7 - > tools/testing/selftests/bpf/DENYLIST.s390x | 1 + > .../bpf/prog_tests/inode_local_storage.c | 72 +++++++ > .../bpf/progs/inode_storage_recursion.c | 90 +++++++++ > 12 files changed, 320 insertions(+), 93 deletions(-) > create mode 100644 tools/testing/selftests/bpf/prog_tests/inode_local_storage.c > create mode 100644 tools/testing/selftests/bpf/progs/inode_storage_recursion.c > > -- > 2.43.5
