linux/debian/patches/features/all/rt/0275-cpu-rt-Fix-cpu_hotplug...

33 lines
1009 B
Diff

From fec70569a3e15aea34a4b22500ff2ba3830d789f Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Tue, 17 Jul 2012 10:45:59 -0400
Subject: [PATCH 275/290] cpu/rt: Fix cpu_hotplug variable initialization
The commit "cpu/rt: Rework cpu down for PREEMPT_RT" changed the double
meaning of the cpu_hotplug.lock, where it was a spinlock for RT and a
mutex for non-RT, to just a mutex for both. But the initialization of
the variable was not updated to reflect this change.
Cc: stable-rt@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/cpu.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 0964e93..8f87b72 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -54,11 +54,7 @@ static struct {
int refcount;
} cpu_hotplug = {
.active_writer = NULL,
-#ifdef CONFIG_PREEMPT_RT_FULL
- .lock = __SPIN_LOCK_UNLOCKED(cpu_hotplug.lock),
-#else
.lock = __MUTEX_INITIALIZER(cpu_hotplug.lock),
-#endif
.refcount = 0,
};