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| author |   Kan Liang <kan.liang@linux.intel.com> | 2022-09-01 06:09:56 -0700 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2022-09-06 11:33:02 +0200 |
| commit | a9a931e2666878343782c82d7d55cc173ddeb3e9 (patch) | |
| tree | 1a5c971a8b8270afec0a4c05b7d6ea0e9072599a /include/linux/perf_event.h | |
| parent | perf/x86/intel/pebs: Fix PEBS timestamps overwritten (diff) | |
| download | linux-dev-a9a931e2666878343782c82d7d55cc173ddeb3e9.tar.xz linux-dev-a9a931e2666878343782c82d7d55cc173ddeb3e9.zip | |
perf: Use sample_flags for branch stack
Use the new sample_flags to indicate whether the branch stack is filled
by the PMU driver.
Remove the br_stack from the perf_sample_data_init() to minimize the number
of cache lines touched.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220901130959.1285717-4-kan.liang@linux.intel.com
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 0978165a2d87..1e12e79454e0 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1011,7 +1011,6 @@ struct perf_sample_data { u64 sample_flags; u64 addr; struct perf_raw_record *raw; - struct perf_branch_stack *br_stack; u64 period; union perf_sample_weight weight; u64 txn; @@ -1021,6 +1020,8 @@ struct perf_sample_data { * The other fields, optionally {set,used} by * perf_{prepare,output}_sample(). */ + struct perf_branch_stack *br_stack; + u64 type; u64 ip; struct { @@ -1061,7 +1062,6 @@ static inline void perf_sample_data_init(struct perf_sample_data *data, data->sample_flags = 0; data->addr = addr; data->raw = NULL; - data->br_stack = NULL; data->period = period; data->weight.full = 0; data->data_src.val = PERF_MEM_NA; |