mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
f8bcf1e223
Allow callers to get the ordered_events last flush timestamp. This is needed in perf inject to obey finished-round ordering when injecting additional events (e.g. from a guest perf.data file) with timestamps. Any additional events that have timestamps before the last flush time must be injected before the corresponding FINISHED_ROUND event. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: kvm@vger.kernel.org Link: https://lore.kernel.org/r/20220711093218.10967-4-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __ORDERED_EVENTS_H
|
|
#define __ORDERED_EVENTS_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct perf_sample;
|
|
|
|
struct ordered_event {
|
|
u64 timestamp;
|
|
u64 file_offset;
|
|
const char *file_path;
|
|
union perf_event *event;
|
|
struct list_head list;
|
|
};
|
|
|
|
enum oe_flush {
|
|
OE_FLUSH__NONE,
|
|
OE_FLUSH__FINAL,
|
|
OE_FLUSH__ROUND,
|
|
OE_FLUSH__HALF,
|
|
OE_FLUSH__TOP,
|
|
OE_FLUSH__TIME,
|
|
};
|
|
|
|
struct ordered_events;
|
|
|
|
typedef int (*ordered_events__deliver_t)(struct ordered_events *oe,
|
|
struct ordered_event *event);
|
|
|
|
struct ordered_events_buffer {
|
|
struct list_head list;
|
|
struct ordered_event event[];
|
|
};
|
|
|
|
struct ordered_events {
|
|
u64 last_flush;
|
|
u64 next_flush;
|
|
u64 max_timestamp;
|
|
u64 max_alloc_size;
|
|
u64 cur_alloc_size;
|
|
struct list_head events;
|
|
struct list_head cache;
|
|
struct list_head to_free;
|
|
struct ordered_events_buffer *buffer;
|
|
struct ordered_event *last;
|
|
ordered_events__deliver_t deliver;
|
|
int buffer_idx;
|
|
unsigned int nr_events;
|
|
enum oe_flush last_flush_type;
|
|
u32 nr_unordered_events;
|
|
bool copy_on_queue;
|
|
void *data;
|
|
};
|
|
|
|
int ordered_events__queue(struct ordered_events *oe, union perf_event *event,
|
|
u64 timestamp, u64 file_offset, const char *file_path);
|
|
void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event);
|
|
int ordered_events__flush(struct ordered_events *oe, enum oe_flush how);
|
|
int ordered_events__flush_time(struct ordered_events *oe, u64 timestamp);
|
|
void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver,
|
|
void *data);
|
|
void ordered_events__free(struct ordered_events *oe);
|
|
void ordered_events__reinit(struct ordered_events *oe);
|
|
u64 ordered_events__first_time(struct ordered_events *oe);
|
|
|
|
static inline
|
|
void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
|
|
{
|
|
oe->max_alloc_size = size;
|
|
}
|
|
|
|
static inline
|
|
void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy)
|
|
{
|
|
oe->copy_on_queue = copy;
|
|
}
|
|
|
|
static inline u64 ordered_events__last_flush_time(struct ordered_events *oe)
|
|
{
|
|
return oe->last_flush;
|
|
}
|
|
|
|
#endif /* __ORDERED_EVENTS_H */
|