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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2013-11-11 17:47:06 +0100
committerSteven Rostedt <rostedt@goodmis.org>2013-11-11 17:47:06 +0100
commit3a81a5210b7d33bb6d836b4c4952a54166a336f3 (patch)
tree2aaf3a8773715709df30ae6acf9a5a8a61214929 /kernel/trace/trace.h
parenttracing: Do not use signed enums with unsigned long long in fgragh output (diff)
downloadlinux-3a81a5210b7d33bb6d836b4c4952a54166a336f3.tar.xz
linux-3a81a5210b7d33bb6d836b4c4952a54166a336f3.zip
tracing: Add rcu annotation for syscall trace descriptors
sparse complains about the enter/exit_sysycall_files[] variables being dereferenced with rcu_dereference_sched(). The fields need to be annotated with __rcu. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
-rw-r--r--kernel/trace/trace.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 11a04d6eaa23..7ca1993c33e4 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -192,8 +192,8 @@ struct trace_array {
#ifdef CONFIG_FTRACE_SYSCALLS
int sys_refcount_enter;
int sys_refcount_exit;
- struct ftrace_event_file *enter_syscall_files[NR_syscalls];
- struct ftrace_event_file *exit_syscall_files[NR_syscalls];
+ struct ftrace_event_file __rcu *enter_syscall_files[NR_syscalls];
+ struct ftrace_event_file __rcu *exit_syscall_files[NR_syscalls];
#endif
int stop_count;
int clock_id;