[PATCH] add schedule_timeout_{,un}interruptible() interfaces
Add schedule_timeout_{,un}interruptible() interfaces so that
schedule_timeout() callers don't have to worry about forgetting to add the
set_current_state() call beforehand.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ac70f84..4b83cb2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -203,6 +203,8 @@
#define MAX_SCHEDULE_TIMEOUT LONG_MAX
extern signed long FASTCALL(schedule_timeout(signed long timeout));
+extern signed long schedule_timeout_interruptible(signed long timeout);
+extern signed long schedule_timeout_uninterruptible(signed long timeout);
asmlinkage void schedule(void);
struct namespace;
diff --git a/kernel/timer.c b/kernel/timer.c
index 13e2b51..a0b716d 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1154,6 +1154,20 @@
EXPORT_SYMBOL(schedule_timeout);
+signed long __sched schedule_timeout_interruptible(signed long timeout)
+{
+ set_current_state(TASK_INTERRUPTIBLE);
+ return schedule_timeout(timeout);
+}
+EXPORT_SYMBOL(schedule_timeout_interruptible);
+
+signed long __sched schedule_timeout_uninterruptible(signed long timeout)
+{
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ return schedule_timeout(timeout);
+}
+EXPORT_SYMBOL(schedule_timeout_uninterruptible);
+
/* Thread ID - the internal kernel "pid" */
asmlinkage long sys_gettid(void)
{