The following commit has been merged into the perf/core branch of tip:
Commit-ID: da6e8c7a252bb0bbad53f1e6993460e17d891652 Gitweb: https://git.kernel.org/tip/da6e8c7a252bb0bbad53f1e6993460e17d891652 Author: Peter Zijlstra (Intel) peterz@infradead.org AuthorDate: Tue, 21 Jan 2025 07:23:00 -08:00 Committer: Peter Zijlstra peterz@infradead.org CommitterDate: Mon, 03 Feb 2025 11:46:07 +01:00
perf/x86/intel: Apply static call for drain_pebs
The x86_pmu_drain_pebs static call was introduced in commit 7c9903c9bf71 ("x86/perf, static_call: Optimize x86_pmu methods"), but it's not really used to replace the old method.
Apply the static call for drain_pebs.
Fixes: 7c9903c9bf71 ("x86/perf, static_call: Optimize x86_pmu methods") Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Signed-off-by: Kan Liang kan.liang@linux.intel.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20250121152303.3128733-1-kan.liang@linux.intel.com --- arch/x86/events/intel/core.c | 2 +- arch/x86/events/intel/ds.c | 2 +- arch/x86/events/perf_event.h | 1 + 3 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 7601196..2acea83 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -3076,7 +3076,7 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status)
handled++; x86_pmu_handle_guest_pebs(regs, &data); - x86_pmu.drain_pebs(regs, &data); + static_call(x86_pmu_drain_pebs)(regs, &data); status &= intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI;
/* diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c index ba74e11..322963b 100644 --- a/arch/x86/events/intel/ds.c +++ b/arch/x86/events/intel/ds.c @@ -957,7 +957,7 @@ static inline void intel_pmu_drain_pebs_buffer(void) { struct perf_sample_data data;
- x86_pmu.drain_pebs(NULL, &data); + static_call(x86_pmu_drain_pebs)(NULL, &data); }
/* diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h index 31c2771..084e919 100644 --- a/arch/x86/events/perf_event.h +++ b/arch/x86/events/perf_event.h @@ -1107,6 +1107,7 @@ extern struct x86_pmu x86_pmu __read_mostly;
DECLARE_STATIC_CALL(x86_pmu_set_period, *x86_pmu.set_period); DECLARE_STATIC_CALL(x86_pmu_update, *x86_pmu.update); +DECLARE_STATIC_CALL(x86_pmu_drain_pebs, *x86_pmu.drain_pebs);
static __always_inline struct x86_perf_task_context_opt *task_context_opt(void *ctx) {