linux-kernel - [GIT PULL] probes: Updates for v6.14

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Message-Id: <20250122000643.ca462dec3a3b906933ef3aee@kernel.org>
Date: Wed, 22 Jan 2025 00:06:43 +0900
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Masami Hiramatsu (Google) <mhiramat@...nel.org>, Thomas Weißschuh <thomas.weissschuh@...utronix.de>, Steven Rostedt
 <rostedt@...dmis.org>, Masami Hiramatsu <mhiramat@...nel.org>,
 linux-kernel@...r.kernel.org
Subject: [GIT PULL] probes: Updates for v6.14

Hi Linus,

Probes updates for v6.14:

- kprobes: Cleanups using guard() and __free(): Use cleanup.h macros
  to cleanup code and remove all gotos from kprobes code. This work
  includes below changes.
  . kprobes: Adopt guard() and scoped_guard()
  . jump_label: Define guard() for jump_label_lock
  . kprobes: Use guard() for external locks
  . kprobes: Use guard for rcu_read_lock
  . kprobes: Remove unneeded goto
  . kprobes: Remove remaining gotos

- tracing/probes: Also cleanups tracing/*probe events code with guard()
  and __free(). These patches are just to simplify the parser codes.
  This work includes below changes.
  . tracing/kprobe: Adopt guard() and scoped_guard()
  . tracing/uprobe: Adopt guard() and scoped_guard()
  . tracing/eprobe: Adopt guard() and scoped_guard()
  . tracing: Use __free() in trace_probe for cleanup
  . tracing: Use __free() for kprobe events to cleanup
  . tracing/kprobes: Simplify __trace_kprobe_create() by removing gotos

- kprobes: Reduce preempt disable scope in check_kprobe_access_safe()
  This reduces preempt disable time only when getting the module
  refcount in check_kprobe_access_safe(). Previously it disabled
  preempt needlessly for other checks including
  jump_label_text_reserved(), but it took long time because of
  the linear search.


Please pull the latest probes-v6.14 tree, which can be found at:


  git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
probes-v6.14

Tag SHA1: fb6828c54b6b19d45d80d34fa9b7c03aa2e9a87b
Head SHA1: 927054606d08d95827f854246293f8379480ed15


Masami Hiramatsu (Google) (12):
      kprobes: Adopt guard() and scoped_guard()
      tracing/kprobe: Adopt guard() and scoped_guard()
      tracing/uprobe: Adopt guard() and scoped_guard()
      tracing/eprobe: Adopt guard() and scoped_guard()
      jump_label: Define guard() for jump_label_lock
      kprobes: Use guard() for external locks
      kprobes: Use guard for rcu_read_lock
      kprobes: Remove unneeded goto
      kprobes: Remove remaining gotos
      tracing: Use __free() in trace_probe for cleanup
      tracing: Use __free() for kprobe events to cleanup
      tracing/kprobes: Simplify __trace_kprobe_create() by removing gotos

Thomas Weißschuh (1):
      kprobes: Reduce preempt disable scope in check_kprobe_access_safe()

----
 include/linux/jump_label.h  |   3 +
 kernel/kprobes.c            | 592 ++++++++++++++++++++------------------------
 kernel/trace/trace_eprobe.c |  36 ++-
 kernel/trace/trace_kprobe.c | 155 ++++++------
 kernel/trace/trace_probe.c  |  51 ++--
 kernel/trace/trace_uprobe.c |  15 +-
 6 files changed, 384 insertions(+), 468 deletions(-)

-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>