Commit-ID: 6a9f4efe78af6069a11946c64d3d4c86cb42046b
Gitweb: https://git.kernel.org/tip/6a9f4efe78af6069a11946c64d3d4c86cb42046b
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Sun, 12 May 2019 17:55:18 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 3 Jun 2019 11:58:27 +0200
perf/x86: Use update attribute groups for default attributes
Using the new pmu::update_attrs attribute group for default
attributes - freeze_on_smi, allow_tsx_force_abort.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20190512155518.21468-10-jolsa@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/events/core.c | 34 ----------------------------------
arch/x86/events/intel/core.c | 9 +++++----
arch/x86/events/perf_event.h | 3 ---
3 files changed, 5 insertions(+), 41 deletions(-)
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index dd0996ba75c3..f0e4804515d8 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -1618,32 +1618,6 @@ static struct attribute_group x86_pmu_format_group __ro_after_init = {
.attrs = NULL,
};
-/* Merge two pointer arrays */
-__init struct attribute **merge_attr(struct attribute **a, struct attribute **b)
-{
- struct attribute **new;
- int j, i;
-
- for (j = 0; a && a[j]; j++)
- ;
- for (i = 0; b && b[i]; i++)
- j++;
- j++;
-
- new = kmalloc_array(j, sizeof(struct attribute *), GFP_KERNEL);
- if (!new)
- return NULL;
-
- j = 0;
- for (i = 0; a && a[i]; i++)
- new[j++] = a[i];
- for (i = 0; b && b[i]; i++)
- new[j++] = b[i];
- new[j] = NULL;
-
- return new;
-}
-
ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page)
{
struct perf_pmu_events_attr *pmu_attr = \
@@ -1824,14 +1798,6 @@ static int __init init_hw_perf_events(void)
if (!x86_pmu.events_sysfs_show)
x86_pmu_events_group.attrs = &empty_attrs;
- if (x86_pmu.attrs) {
- struct attribute **tmp;
-
- tmp = merge_attr(x86_pmu_attr_group.attrs, x86_pmu.attrs);
- if (!WARN_ON(!tmp))
- x86_pmu_attr_group.attrs = tmp;
- }
-
pmu.attr_update = x86_pmu.attr_update;
pr_info("... version: %d\n", x86_pmu.version);
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 3bc967be7c7b..71001f005bfe 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3897,8 +3897,6 @@ static __initconst const struct x86_pmu core_pmu = {
.check_period = intel_pmu_check_period,
};
-static struct attribute *intel_pmu_attrs[];
-
static __initconst const struct x86_pmu intel_pmu = {
.name = "Intel",
.handle_irq = intel_pmu_handle_irq,
@@ -3930,8 +3928,6 @@ static __initconst const struct x86_pmu intel_pmu = {
.format_attrs = intel_arch3_formats_attr,
.events_sysfs_show = intel_event_sysfs_show,
- .attrs = intel_pmu_attrs,
-
.cpu_prepare = intel_pmu_cpu_prepare,
.cpu_starting = intel_pmu_cpu_starting,
.cpu_dying = intel_pmu_cpu_dying,
@@ -4458,6 +4454,10 @@ static struct attribute_group group_format_extra_skl = {
.is_visible = exra_is_visible,
};
+static struct attribute_group group_default = {
+ .attrs = intel_pmu_attrs,
+};
+
static const struct attribute_group *attr_update[] = {
&group_events_td,
&group_events_mem,
@@ -4466,6 +4466,7 @@ static const struct attribute_group *attr_update[] = {
&group_caps_lbr,
&group_format_extra,
&group_format_extra_skl,
+ &group_default,
NULL,
};
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 1da9b6f0b279..9bcec3f99e4a 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -636,7 +636,6 @@ struct x86_pmu {
const struct attribute_group **attr_update;
unsigned long attr_freeze_on_smi;
- struct attribute **attrs;
/*
* CPU Hotplug hooks
@@ -903,8 +902,6 @@ static inline void set_linear_ip(struct pt_regs *regs, unsigned long ip)
ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event);
ssize_t intel_event_sysfs_show(char *page, u64 config);
-struct attribute **merge_attr(struct attribute **a, struct attribute **b);
-
ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr,
char *page);
ssize_t events_ht_sysfs_show(struct device *dev, struct device_attribute *attr,
|