Merge commit 'v2.6.37-rc8' into perf/core

Merge reason: pick up latest -rc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 41 insertions, 15 deletions

diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 685ea65eb803..ce0775aa64c3 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -81,16 +81,41 @@ struct kthread_work {
 #define DEFINE_KTHREAD_WORK(work, fn)                                   \
         struct kthread_work work = KTHREAD_WORK_INIT(work, fn)
 
-static inline void init_kthread_worker(struct kthread_worker *worker)
-{
-        *worker = (struct kthread_worker)KTHREAD_WORKER_INIT(*worker);
-}
-
-static inline void init_kthread_work(struct kthread_work *work,
-                                     kthread_work_func_t fn)
-{
-        *work = (struct kthread_work)KTHREAD_WORK_INIT(*work, fn);
-}
+/*
+ * kthread_worker.lock and kthread_work.done need their own lockdep class
+ * keys if they are defined on stack with lockdep enabled.  Use the
+ * following macros when defining them on stack.
+ */
+#ifdef CONFIG_LOCKDEP
+# define KTHREAD_WORKER_INIT_ONSTACK(worker)                            \
+        ({ init_kthread_worker(&worker); worker; })
+# define DEFINE_KTHREAD_WORKER_ONSTACK(worker)                          \
+        struct kthread_worker worker = KTHREAD_WORKER_INIT_ONSTACK(worker)
+# define KTHREAD_WORK_INIT_ONSTACK(work, fn)                            \
+        ({ init_kthread_work((&work), fn); work; })
+# define DEFINE_KTHREAD_WORK_ONSTACK(work, fn)                          \
+        struct kthread_work work = KTHREAD_WORK_INIT_ONSTACK(work, fn)
+#else
+# define DEFINE_KTHREAD_WORKER_ONSTACK(worker) DEFINE_KTHREAD_WORKER(worker)
+# define DEFINE_KTHREAD_WORK_ONSTACK(work, fn) DEFINE_KTHREAD_WORK(work, fn)
+#endif
+
+extern void __init_kthread_worker(struct kthread_worker *worker,
+                        const char *name, struct lock_class_key *key);
+
+#define init_kthread_worker(worker)                                     \
+        do {                                                            \
+                static struct lock_class_key __key;                     \
+                __init_kthread_worker((worker), "("#worker")->lock", &__key); \
+        } while (0)
+
+#define init_kthread_work(work, fn)                                     \
+        do {                                                            \
+                memset((work), 0, sizeof(struct kthread_work));         \
+                INIT_LIST_HEAD(&(work)->node);                          \
+                (work)->func = (fn);                                    \
+                init_waitqueue_head(&(work)->done);                     \
+        } while (0)
 
 int kthread_worker_fn(void *worker_ptr);
 
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 123566912d73..e2b9e63afa68 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -70,7 +70,7 @@ struct nlmsghdr {
    Check                NLM_F_EXCL
  */
 
-#define NLMSG_ALIGNTO   4
+#define NLMSG_ALIGNTO   4U
 #define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
 #define NLMSG_HDRLEN     ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
 #define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(NLMSG_HDRLEN))
diff --git a/include/linux/taskstats.h b/include/linux/taskstats.h
index 341dddb55090..2466e550a41d 100644
--- a/include/linux/taskstats.h
+++ b/include/linux/taskstats.h
@@ -33,7 +33,7 @@
  */
 
 
-#define TASKSTATS_VERSION       7
+#define TASKSTATS_VERSION       8
 #define TS_COMM_LEN             32      /* should be >= TASK_COMM_LEN
                                          * in linux/sched.h */
 
@@ -188,6 +188,7 @@ enum {
         TASKSTATS_TYPE_STATS,           /* taskstats structure */
         TASKSTATS_TYPE_AGGR_PID,        /* contains pid + stats */
         TASKSTATS_TYPE_AGGR_TGID,       /* contains tgid + stats */
+        TASKSTATS_TYPE_NULL,            /* contains nothing */
         __TASKSTATS_TYPE_MAX,
 };
 
diff --git a/include/linux/unaligned/packed_struct.h b/include/linux/unaligned/packed_struct.h
index 2498bb9fe002..c9a6abd972a1 100644
--- a/include/linux/unaligned/packed_struct.h
+++ b/include/linux/unaligned/packed_struct.h
@@ -3,9 +3,9 @@
 
 #include <linux/kernel.h>
 
-struct __una_u16 { u16 x __attribute__((packed)); };
-struct __una_u32 { u32 x __attribute__((packed)); };
-struct __una_u64 { u64 x __attribute__((packed)); };
+struct __una_u16 { u16 x; } __attribute__((packed));
+struct __una_u32 { u32 x; } __attribute__((packed));
+struct __una_u64 { u64 x; } __attribute__((packed));
 
 static inline u16 __get_unaligned_cpu16(const void *p)
 {