TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

perf/x86/intel: Apply static call for drain_pebs

Browse Source 
The x86_pmu_drain_pebs static call was introduced in commit 7c9903c9bf
("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: 7c9903c9bf ("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
This commit is contained in:
Peter Zijlstra (Intel)
2025-01-21 07:23:00 -08:00
committed by Peter Zijlstra
parent 83179cd678
commit 314dfe1057
3 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/x86/events/intel/core.c
+1 -1
View File
@@ -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;
/*
arch/x86/events/intel/ds.c
+1 -1
View File
@@ -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);
}
/*
arch/x86/events/perf_event.h
+1
View File
@@ -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)
{