Merge tag 'probes-v7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes updates from Masami Hiramatsu:
 "Asynchronous optprobe optimizer and cleanups:

   - Make optprobe optimizer multi-generational and asynchronous

     Rework the optimizer as a state machine to avoid calling
     time-consuming synchronize_rcu_tasks() while holding kprobe_mutex,
     text_mutex, and cpus_read_lock(). Uses call_rcu_tasks() and a fixed
     ring of generation slots instead, so locks are only held during the
     brief instruction- patching window

   - Use DEFINE_DEBUGFS_ATTRIBUTE for the kprobes enabled knob

     Replace a hand-rolled debugfs read/write pair (dating from 2007)
     with the proper DEFINE_DEBUGFS_ATTRIBUTE macro, removing dead code
     and the stale XXX comment

  Code quality and documentation cleanups:

   - Add const qualifier to new_argv allocation type in trace_probe.c,
     preparing for the type-aware kmalloc_obj allocator conversion

   - Clarify btf_find_struct_member() container parameter

     Rename the misleading @member_type parameter to @container_type and
     add proper kernel-doc documentation for all parameters and return
     values

  Boot tracing test framework and testcases:

   - Add a generic boot tracing test framework under
     tools/testing/selftests/ftrace/boottime/

     The test runner builds a minimal initramfs with busybox, boots
     QEMU, and runs tracefs checker scripts, supporting bootconfig,
     kernel command-line options, and multi-boot crash/reboot scenarios

   - Add boot-time tracing testcases

     Verify dynamic kprobe, synthetic events, eprobe, fprobe, tprobe,
     and trace instance creation via bootconfig

   - Add kernel cmdline tracing testcases

     Verify ftrace, trace_event, trace_buf_size, trace_options,
     trace_clock, and trace_instance kernel parameters

   - Add persistent ring buffer testcases:

     Verify memory reservation via reserve_mem= and trace data retention
     across guest crash/reboot, as well as backup instance creation and
     boot log preservation

   - Change non-unique test symbol from name_show to init_once in
     kprobe_non_uniq_symbol.tc for more reliable cross-architecture
     testing"

* tag 'probes-v7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ftrace/selftests: Change non-unique test symbol to init_once
  tracing/probes: Clarify btf_find_struct_member() container parameter and add kernel-doc
  kprobes: Make optprobe optimizer multi-generational and asynchronous
  tracing/probes: Add const to new_argv allocation type
  kprobes: use DEFINE_DEBUGFS_ATTRIBUTE for the enabled knob
  selftests/ftrace: Add persistent ring buffer testcases
  selftests/ftrace: Add kernel cmdline tracing testcases
  selftests/ftrace: Add boot-time tracing testcases
  selftests/ftrace: Add generic boot tracing test framework

0 files changed, 0 insertions, 0 deletions