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Brooklyn/tools/perf/util/namespaces.h
crowetic a94b3d14aa Brooklyn+ (PLUS) changes
Changes included (and more):

1. Dynamic RAM merge

2. Real-time page scan and allocation

3. Cache compression

4. Real-time IRQ checks

5. Dynamic I/O allocation for Java heap

6. Java page migration

7. Contiguous memory allocation

8. Idle pages tracking

9. Per CPU RAM usage tracking

10. ARM NEON scalar multiplication library

11. NEON/ARMv8 crypto extensions

12. NEON SHA, Blake, RIPEMD crypto extensions

13. Parallel NEON crypto engine for multi-algo based CPU stress reduction
2022-05-12 10:47:00 -07:00

83 lines
1.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
*
* Copyright (C) 2017 Hari Bathini, IBM Corporation
*/
#ifndef __PERF_NAMESPACES_H
#define __PERF_NAMESPACES_H
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/stddef.h>
#include <linux/perf_event.h>
#include <linux/refcount.h>
#include <linux/types.h>
#ifndef HAVE_SETNS_SUPPORT
int setns(int fd, int nstype);
#endif
struct perf_record_namespaces;
struct namespaces {
struct list_head list;
u64 end_time;
struct perf_ns_link_info link_info[];
};
struct namespaces *namespaces__new(struct perf_record_namespaces *event);
void namespaces__free(struct namespaces *namespaces);
struct nsinfo {
pid_t pid;
pid_t tgid;
pid_t nstgid;
bool need_setns;
bool in_pidns;
char *mntns_path;
refcount_t refcnt;
};
struct nscookie {
int oldns;
int newns;
char *oldcwd;
};
int nsinfo__init(struct nsinfo *nsi);
struct nsinfo *nsinfo__new(pid_t pid);
struct nsinfo *nsinfo__copy(const struct nsinfo *nsi);
struct nsinfo *nsinfo__get(struct nsinfo *nsi);
void nsinfo__put(struct nsinfo *nsi);
bool nsinfo__need_setns(const struct nsinfo *nsi);
void nsinfo__clear_need_setns(struct nsinfo *nsi);
pid_t nsinfo__tgid(const struct nsinfo *nsi);
pid_t nsinfo__nstgid(const struct nsinfo *nsi);
pid_t nsinfo__pid(const struct nsinfo *nsi);
pid_t nsinfo__in_pidns(const struct nsinfo *nsi);
void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc);
void nsinfo__mountns_exit(struct nscookie *nc);
char *nsinfo__realpath(const char *path, struct nsinfo *nsi);
int nsinfo__stat(const char *filename, struct stat *st, struct nsinfo *nsi);
bool nsinfo__is_in_root_namespace(void);
static inline void __nsinfo__zput(struct nsinfo **nsip)
{
if (nsip) {
nsinfo__put(*nsip);
*nsip = NULL;
}
}
#define nsinfo__zput(nsi) __nsinfo__zput(&nsi)
const char *perf_ns__name(unsigned int id);
#endif /* __PERF_NAMESPACES_H */