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[PATCH] sched/core: add __sched tag for io_schedule()




non-inline io_schedule() was introduced in
commit 10ab56434f2f ("sched/core: Separate out io_schedule_prepare() and io_schedule_finish()")
Keep in line with io_schedule_timeout, Otherwise
"/proc/<pid>/wchan" will report io_schedule()
rather than its callers when waiting io.

Reported-by: Jilong Kou <koujilong@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Signed-off-by: Gao Xiang <gaoxiang25@xxxxxxxxxx>
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 102dfcf0a29a..361d60423c11 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5122,7 +5122,7 @@ long __sched io_schedule_timeout(long timeout)
 }
 EXPORT_SYMBOL(io_schedule_timeout);
 
-void io_schedule(void)
+void __sched io_schedule(void)
 {
 	int token;
 
-- 
2.17.1