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-rw-r--r--include/linux/perf_event.h6
-rw-r--r--include/linux/sysfs.h8
2 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 2bca72f3028b..16e38c286d46 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -256,6 +256,7 @@ struct pmu {
struct module *module;
struct device *dev;
const struct attribute_group **attr_groups;
+ const struct attribute_group **attr_update;
const char *name;
int type;
@@ -749,6 +750,11 @@ struct perf_event_context {
int nr_stat;
int nr_freq;
int rotate_disable;
+ /*
+ * Set when nr_events != nr_active, except tolerant to events not
+ * necessary to be active due to scheduling constraints, such as cgroups.
+ */
+ int rotate_necessary;
refcount_t refcount;
struct task_struct *task;
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 786816cf4aa5..965236795750 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -268,6 +268,8 @@ int __must_check sysfs_create_group(struct kobject *kobj,
const struct attribute_group *grp);
int __must_check sysfs_create_groups(struct kobject *kobj,
const struct attribute_group **groups);
+int __must_check sysfs_update_groups(struct kobject *kobj,
+ const struct attribute_group **groups);
int sysfs_update_group(struct kobject *kobj,
const struct attribute_group *grp);
void sysfs_remove_group(struct kobject *kobj,
@@ -433,6 +435,12 @@ static inline int sysfs_create_groups(struct kobject *kobj,
return 0;
}
+static inline int sysfs_update_groups(struct kobject *kobj,
+ const struct attribute_group **groups)
+{
+ return 0;
+}
+
static inline int sysfs_update_group(struct kobject *kobj,
const struct attribute_group *grp)
{
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