diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-11-01 16:15:42 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-11-01 16:15:42 -1000 |
| commit | 05bf73aa27ba89474763cea7b9cd2626eda61e01 (patch) | |
| tree | 0430a2d85df344f59030ac518a696a63139bfafd /MAINTAINERS | |
| parent | 1b10d2c8c6219bfc86d8c7d53a4f97a0a706d1ba (diff) | |
| parent | 4758560fa268cecfa1144f015aa9f2525d164b7e (diff) | |
Merge tag 'probes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes updates from Masami Hiramatsu:
"Cleanups:
- kprobes: Fixes typo in kprobes samples
- tracing/eprobes: Remove 'break' after return
kretprobe/fprobe performance improvements:
- lib: Introduce new `objpool`, which is a high performance lockless
object queue. This uses per-cpu ring array to allocate/release
objects from the pre-allocated object pool.
Since the index of ring array is a 32bit sequential counter, we can
retry to push/pop the object pointer from the ring without lock (as
seq-lock does)
- lib: Add an objpool test module to test the functionality and
evaluate the performance under some circumstances
- kprobes/fprobe: Improve kretprobe and rethook scalability
performance with objpool.
This improves both legacy kretprobe and fprobe exit handler (which
is based on rethook) to be scalable on SMP systems. Even with
8-threads parallel test, it shows a great scalability improvement
- Remove unneeded freelist.h which is replaced by objpool
- objpool: Add maintainers entry for the objpool
- objpool: Fix to remove unused include header lines"
* tag 'probes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
kprobes: unused header files removed
MAINTAINERS: objpool added
kprobes: freelist.h removed
kprobes: kretprobe scalability improvement
lib: objpool test module added
lib: objpool added: ring-array based lockless MPMC
tracing/eprobe: drop unneeded breaks
samples: kprobes: Fixes a typo
Diffstat (limited to 'MAINTAINERS')
| -rw-r--r-- | MAINTAINERS | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 6f0dda0603b8..14e1194faa4b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15553,6 +15553,13 @@ F: include/linux/objagg.h F: lib/objagg.c F: lib/test_objagg.c +OBJPOOL +M: Matt Wu <wuqiang.matt@bytedance.com> +S: Supported +F: include/linux/objpool.h +F: lib/objpool.c +F: lib/test_objpool.c + OBJTOOL M: Josh Poimboeuf <jpoimboe@kernel.org> M: Peter Zijlstra <peterz@infradead.org> |