From: Davidlohr Bueso <dave@stgolabs.net>
Date: Tue, 17 Feb 2015 21:47:55 +0000 (-0800)
Subject: ipc,sem: use current->state helpers
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=52644c9ab3faefbfbf07a19c24c4e74e33cfd796;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

ipc,sem: use current->state helpers

Call __set_current_state() instead of assigning the new state directly.
These interfaces also aid CONFIG_DEBUG_ATOMIC_SLEEP environments, keeping
track of who changed the state.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/ipc/sem.c b/ipc/sem.c
index 6115146563f9..92842113c6a9 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1941,7 +1941,7 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
 	queue.sleeper = current;
 
 sleep_again:
-	current->state = TASK_INTERRUPTIBLE;
+	__set_current_state(TASK_INTERRUPTIBLE);
 	sem_unlock(sma, locknum);
 	rcu_read_unlock();