Avoid waking up every thread sleeping in a nanosleep call during
suspend and resume by calling a freezable blocking call.

Signed-off-by: Colin Cross <ccr...@android.com>
---
 kernel/hrtimer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 14be27f..e036276 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -47,6 +47,7 @@
 #include <linux/sched/sysctl.h>
 #include <linux/sched/rt.h>
 #include <linux/timer.h>
+#include <linux/freezer.h>
 
 #include <asm/uaccess.h>
 
@@ -1525,7 +1526,7 @@ static int __sched do_nanosleep(struct hrtimer_sleeper 
*t, enum hrtimer_mode mod
                        t->task = NULL;
 
                if (likely(t->task))
-                       schedule();
+                       freezable_schedule();
 
                hrtimer_cancel(&t->timer);
                mode = HRTIMER_MODE_ABS;
-- 
1.8.2.1

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