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authorLinus Torvalds <torvalds@linux-foundation.org>2024-11-19 22:34:06 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2024-11-19 22:34:06 +0100
commitf41dac3efb7582cd3f518fadf7764d424f453788 (patch)
treeda2aee8b82625525adf671911ed862af43a1b60d /arch/Kconfig
parentMerge tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/ker... (diff)
parentperf/core: Correct perf sampling with guest VMs (diff)
downloadlinux-f41dac3efb7582cd3f518fadf7764d424f453788.tar.xz
linux-f41dac3efb7582cd3f518fadf7764d424f453788.zip
Merge tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar: "Uprobes: - Add BPF session support (Jiri Olsa) - Switch to RCU Tasks Trace flavor for better performance (Andrii Nakryiko) - Massively increase uretprobe SMP scalability by SRCU-protecting the uretprobe lifetime (Andrii Nakryiko) - Kill xol_area->slot_count (Oleg Nesterov) Core facilities: - Implement targeted high-frequency profiling by adding the ability for an event to "pause" or "resume" AUX area tracing (Adrian Hunter) VM profiling/sampling: - Correct perf sampling with guest VMs (Colton Lewis) New hardware support: - x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi) Misc fixes and enhancements: - x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter) - x86/amd: Warn only on new bits set (Breno Leitao) - x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init (Jean Delvare) - uprobes: Re-order struct uprobe_task to save some space (Christophe JAILLET) - x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang) - x86/rapl: Clean up cpumask and hotplug (Kan Liang) - uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg Nesterov)" * tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) perf/core: Correct perf sampling with guest VMs perf/x86: Refactor misc flag assignments perf/powerpc: Use perf_arch_instruction_pointer() perf/core: Hoist perf_instruction_pointer() and perf_misc_flags() perf/arm: Drop unused functions uprobes: Re-order struct uprobe_task to save some space perf/x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling perf/x86/intel/pt: Add support for pause / resume perf/core: Add aux_pause, aux_resume, aux_start_paused perf/x86/intel/pt: Fix buffer full but size is 0 case uprobes: SRCU-protect uretprobe lifetime (with timeout) uprobes: allow put_uprobe() from non-sleepable softirq context perf/x86/rapl: Clean up cpumask and hotplug perf/x86/rapl: Move the pmu allocation out of CPU hotplug uprobe: Add support for session consumer uprobe: Add data pointer to consumer handlers perf/x86/amd: Warn only on new bits set uprobes: fold xol_take_insn_slot() into xol_get_insn_slot() uprobes: kill xol_area->slot_count ...
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index bd9f095d69fa..b4ad3a6d29f1 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -135,6 +135,7 @@ config KPROBES_ON_FTRACE
config UPROBES
def_bool n
depends on ARCH_SUPPORTS_UPROBES
+ select TASKS_TRACE_RCU
help
Uprobes is the user-space counterpart to kprobes: they
enable instrumentation applications (such as 'perf probe')