2012年3月 6日

[ANNOUNCE] 3.2.9-rt16

Dear RT Folks,

I'm pleased to announce the 3.2.9-rt16 release.

Changes vs. 3.2.9-rt15:

* cpu hotplug lock init fix [ Steven ]

* seqlock fix CONFIG typo

The incremental patch against 3.2.9-rt15 can be found here:

http://www.kernel.org/pub/linux/kernel/projects/rt/3.2/incr/patch-3.2.9-rt15-rt16.patch.xz

and is appended below.


The RT patch against 3.2.9 can be found here:

http://www.kernel.org/pub/linux/kernel/projects/rt/3.2/patch-3.2.9-rt16.patch.xz


The split quilt queue is available at:

http://www.kernel.org/pub/linux/kernel/projects/rt/3.2/patches-3.2.9-rt16.tar.xz


Enjoy,

tglx

Index: linux-3.2/include/linux/seqlock.h
===================================================================
--- linux-3.2.orig/include/linux/seqlock.h
+++ linux-3.2/include/linux/seqlock.h
@@ -177,7 +177,7 @@ typedef struct {
/*
* Read side functions for starting and finalizing a read side section.
*/
-#ifndef CONFIG_PREEMPT_RT
+#ifndef CONFIG_PREEMPT_RT_FULL
static inline unsigned read_seqbegin(const seqlock_t *sl)
{
return read_seqcount_begin(&sl->seqcount);
Index: linux-3.2/kernel/cpu.c
===================================================================
--- linux-3.2.orig/kernel/cpu.c
+++ linux-3.2/kernel/cpu.c
@@ -59,16 +59,20 @@ 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,
};

#ifdef CONFIG_PREEMPT_RT_FULL
-# define hotplug_lock() spin_lock(&cpu_hotplug.lock)
-# define hotplug_unlock() spin_unlock(&cpu_hotplug.lock)
+# define hotplug_lock() rt_spin_lock(&cpu_hotplug.lock)
+# define hotplug_unlock() rt_spin_unlock(&cpu_hotplug.lock)
#else
# define hotplug_lock() mutex_lock(&cpu_hotplug.lock)
-# define hotplug_lock() mutex_unlock(&cpu_hotplug.lock)
+# define hotplug_unlock() mutex_unlock(&cpu_hotplug.lock)
#endif

struct hotplug_pcp {
Index: linux-3.2/localversion-rt
===================================================================
--- linux-3.2.orig/localversion-rt
+++ linux-3.2/localversion-rt
@@ -1 +1 @@
--rt15
+-rt16
Index: linux-3.2/include/net/neighbour.h
===================================================================
--- linux-3.2.orig/include/net/neighbour.h
+++ linux-3.2/include/net/neighbour.h
@@ -385,7 +385,7 @@ struct neighbour_cb {

#define NEIGH_CB(skb) ((struct neighbour_cb *)(skb)->cb)

-static inline void neigh_ha_snapshot(char *dst, const struct neighbour *n,
+static inline void neigh_ha_snapshot(char *dst, struct neighbour *n,
const struct net_device *dev)
{
unsigned int seq;
--
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投稿者 xml-rpc : 2012年3月 6日 19:20
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