diff mbox series

[RFC,bpf-next] perf: Add perf_type_[uk]probe()

Message ID 20230621120042.3903-2-laoar.shao@gmail.com (mailing list archive)
State RFC
Delegated to: BPF
Headers show
Series [RFC,bpf-next] perf: Add perf_type_[uk]probe() | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR pending PR summary
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netdev/series_format success Single patches do not need cover letters
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netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1868 this patch: 1868
netdev/cc_maintainers warning 9 maintainers not CCed: namhyung@kernel.org alexander.shishkin@linux.intel.com adrian.hunter@intel.com acme@kernel.org mingo@redhat.com peterz@infradead.org linux-perf-users@vger.kernel.org mark.rutland@arm.com irogers@google.com
netdev/build_clang success Errors and warnings before: 283 this patch: 283
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netdev/verify_fixes success No Fixes tag
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Commit Message

Yafang Shao June 21, 2023, noon UTC 
Add perf_type_uprobe() to get the perf_type of uprobe and
perf_type_kprobe() to get the perf_type of kprobe.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
 include/linux/perf_event.h |  3 +++
 kernel/events/core.c       | 18 ++++++++++++++++++
 2 files changed, 21 insertions(+)
diff mbox series

Patch

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index d5628a7..79dbc70 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1881,4 +1881,7 @@  static inline void perf_lopwr_cb(bool mode)
 }
 #endif
 
+int perf_type_kprobe(void);
+int perf_type_uprobe(void);
+
 #endif /* _LINUX_PERF_EVENT_H */
diff --git a/kernel/events/core.c b/kernel/events/core.c
index db016e4..075d4fb 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -10456,6 +10456,24 @@  static inline bool perf_event_is_tracing(struct perf_event *event)
 	return false;
 }
 
+int perf_type_kprobe(void)
+{
+#ifdef CONFIG_KPROBE_EVENTS
+	return perf_kprobe.type;
+#else
+	return -EOPNOTSUPP;
+#endif
+}
+
+int perf_type_uprobe(void)
+{
+#ifdef CONFIG_UPROBE_EVENTS
+	return perf_uprobe.type;
+#else
+	return -EOPNOTSUPP;
+#endif
+}
+
 int perf_event_set_bpf_prog(struct perf_event *event, struct bpf_prog *prog,
 			    u64 bpf_cookie)
 {