• Linus Torvalds's avatar
    Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c05f3642
    Linus Torvalds authored
    Pull perf updates from Ingo Molnar:
     "The main updates in this cycle were:
       - Lots of perf tooling changes too voluminous to list (big perf trace
         and perf stat improvements, lots of libtraceevent reorganization,
         etc.), so I'll list the authors and refer to the changelog for
           Benjamin Peterson, Jérémie Galarneau, Kim Phillips, Peter
           Zijlstra, Ravi Bangoria, Sangwon Hong, Sean V Kelley, Steven
           Rostedt, Thomas Gleixner, Ding Xiang, Eduardo Habkost, Thomas
           Richter, Andi Kleen, Sanskriti Sharma, Adrian Hunter, Tzvetomir
           Stoyanov, Arnaldo Carvalho de Melo, Jiri Olsa.
         ... with the bulk of the changes written by Jiri Olsa, Tzvetomir
         Stoyanov and Arnaldo Carvalho de Melo.
       - Continued intel_rdt work with a focus on playing well with perf
         events. This also imported some non-perf RDT work due to
         dependencies. (Reinette Chatre)
       - Implement counter freezing for Arch Perfmon v4 (Skylake and newer).
         This allows to speed up the PMI handler by avoiding unnecessary MSR
         writes and make it more accurate. (Andi Kleen)
       - kprobes cleanups and simplification (Masami Hiramatsu)
       - Intel Goldmont PMU updates (Kan Liang)
       - ... plus misc other fixes and updates"
    * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (155 commits)
      kprobes/x86: Use preempt_enable() in optimized_callback()
      x86/intel_rdt: Prevent pseudo-locking from using stale pointers
      kprobes, x86/ptrace.h: Make regs_get_kernel_stack_nth() not fault on bad stack
      perf/x86/intel: Export mem events only if there's PEBS support
      x86/cpu: Drop pointless static qualifier in punit_dev_state_show()
      x86/intel_rdt: Fix initial allocation to consider CDP
      x86/intel_rdt: CBM overlap should also check for overlap with CDP peer
      x86/intel_rdt: Introduce utility to obtain CDP peer
      tools lib traceevent, perf tools: Move struct tep_handler definition in a local header file
      tools lib traceevent: Separate out tep_strerror() for strerror_r() issues
      perf python: More portable way to make CFLAGS work with clang
      perf python: Make clang_has_option() work on Python 3
      perf tools: Free temporary 'sys' string in read_event_files()
      perf tools: Avoid double free in read_event_file()
      perf tools: Free 'printk' string in parse_ftrace_printk()
      perf tools: Cleanup trace-event-info 'tdata' leak
      perf strbuf: Match va_{add,copy} with va_end
      perf test: S390 does not support watchpoints in test 22
      perf auxtrace: Include missing asm/bitsperlong.h to get BITS_PER_LONG
      tools include: Adopt linux/bits.h
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