Avoid waking up every thread sleeping in a select call during
suspend and resume by calling a freezable blocking call.
Signed-off-by: Colin Cross <ccr...@android.com>
---
fs/select.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/select.c b/fs/select.c
index 8c1c96c..6b14dc7 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -27,6 +27,7 @@
#include <linux/rcupdate.h>
#include <linux/hrtimer.h>
#include <linux/sched/rt.h>
+#include <linux/freezer.h>
#include <asm/uaccess.h>
@@ -236,7 +237,8 @@ int poll_schedule_timeout(struct poll_wqueues *pwq, int
state,
set_current_state(state);
if (!pwq->triggered)
- rc = schedule_hrtimeout_range(expires, slack, HRTIMER_MODE_ABS);
+ rc = freezable_schedule_hrtimeout_range(expires, slack,
+ HRTIMER_MODE_ABS);
__set_current_state(TASK_RUNNING);
/*
--
1.8.2.1
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