[v10,0/5] lib,kprobes: kretprobe scalability improvement

Message

wuqiang.matt Oct. 15, 2023, 5:32 a.m. UTC

This patch series introduces a scalable and lockless ring-array based
object pool to improve scalability of kretprobed routines.

v10:
  *) objpool simplified and improved according to Masami's advices

wuqiang.matt (5):
  lib: objpool added: ring-array based lockless MPMC
  lib: objpool test module added
  kprobes: kretprobe scalability improvement with objpool
  kprobes: freelist.h removed
  MAINTAINERS: objpool added

 MAINTAINERS              |   7 +
 include/linux/freelist.h | 129 --------
 include/linux/kprobes.h  |  11 +-
 include/linux/objpool.h  | 176 ++++++++++
 include/linux/rethook.h  |  16 +-
 kernel/kprobes.c         |  93 +++---
 kernel/trace/fprobe.c    |  32 +-
 kernel/trace/rethook.c   |  90 +++--
 lib/Kconfig.debug        |  11 +
 lib/Makefile             |   4 +-
 lib/objpool.c            | 286 ++++++++++++++++
 lib/test_objpool.c       | 689 +++++++++++++++++++++++++++++++++++++++
 12 files changed, 1270 insertions(+), 274 deletions(-)
 delete mode 100644 include/linux/freelist.h
 create mode 100644 include/linux/objpool.h
 create mode 100644 lib/objpool.c
 create mode 100644 lib/test_objpool.c