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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2020-11-05 21:32:36 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-11-06 08:33:23 -0500
commit0264c8c9e1b53e9dbb41fae5e54756e84644bc60 (patch)
tree63d5169796dea5946cdc81a091c57d72e64c1195 /include/linux/ftrace.h
parent645f224e7ba2f4200bf163153d384ceb0de5462e (diff)
ftrace: Move the recursion testing into global headers
Currently, if a callback is registered to a ftrace function and its ftrace_ops does not have the RECURSION flag set, it is encapsulated in a helper function that does the recursion for it. Really, all the callbacks should have their own recursion protection for performance reasons. But they should not all implement their own. Move the recursion helpers to global headers, so that all callbacks can use them. Link: https://lkml.kernel.org/r/20201028115612.460535535@goodmis.org Link: https://lkml.kernel.org/r/20201106023546.166456258@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/ftrace.h')
-rw-r--r--include/linux/ftrace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 1bd3a0356ae4..0e4164a7f56d 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -7,6 +7,7 @@
#ifndef _LINUX_FTRACE_H
#define _LINUX_FTRACE_H
+#include <linux/trace_recursion.h>
#include <linux/trace_clock.h>
#include <linux/kallsyms.h>
#include <linux/linkage.h>