lkml.org 
[lkml]   [2013]   [Nov]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/2] tracing: Add __rcu to enter/exit_syscall_files
Date
Add __rcu annotation to the contents of enter/exit_syscall_files to
signify that they're protected by rcu and to silence the following
sparse warnings when CONFIG_SPARSE_RCU_POINTER=y:

kernel/trace/trace_syscalls.c:320:23: error: incompatible types in
comparison expression (different address spaces)
kernel/trace/trace_syscalls.c:368:23: error: incompatible types in
comparison expression (different address spaces)

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
---
kernel/trace/trace.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 11a04d6..7ca1993 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;
--
1.8.3.1


\
 
 \ /
  Last update: 2013-11-11 06:21    [W:0.027 / U:0.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site