Messages in this thread Patch in this message | | | Date | Tue, 07 Dec 2021 16:44:19 -0500 | From | Steven Rostedt <> | Subject | [for-next][PATCH 13/13] tracing: Switch to kvfree_rcu() API |
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From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Instead of invoking a synchronize_rcu() to free a pointer after a grace period we can directly make use of new API that does the same but in more efficient way.
Link: https://lkml.kernel.org/r/20211124110308.2053-10-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> --- kernel/trace/trace_osnoise.c | 3 +-- kernel/trace/trace_probe.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index 7520d43aed55..4719a848bf17 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -138,8 +138,7 @@ static void osnoise_unregister_instance(struct trace_array *tr) if (!found) return; - synchronize_rcu(); - kfree(inst); + kvfree_rcu(inst); } /* diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 3ed2a3f37297..8a3822818bf8 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -1138,8 +1138,7 @@ int trace_probe_remove_file(struct trace_probe *tp, return -ENOENT; list_del_rcu(&link->list); - synchronize_rcu(); - kfree(link); + kvfree_rcu(link); if (list_empty(&tp->event->files)) trace_probe_clear_flag(tp, TP_FLAG_TRACE); -- 2.33.0
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