7 files changed, 73 insertions, 57 deletions

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index e4e8e117d27d..499900d0cee7 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -378,6 +378,7 @@ struct cgroup_subsys {
          * - initiating hotplug events
          */
         struct mutex hierarchy_mutex;
+        struct lock_class_key subsys_key;
 
         /*
          * Link to parent, and list entry in parent's children.
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 3e0f64c335c8..3e68469c1885 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -282,6 +282,18 @@ static inline void dmaengine_put(void)
 }
 #endif
 
+#ifdef CONFIG_NET_DMA
+#define net_dmaengine_get()     dmaengine_get()
+#define net_dmaengine_put()     dmaengine_put()
+#else
+static inline void net_dmaengine_get(void)
+{
+}
+static inline void net_dmaengine_put(void)
+{
+}
+#endif
+
 dma_cookie_t dma_async_memcpy_buf_to_buf(struct dma_chan *chan,
         void *dest, void *src, size_t len);
 dma_cookie_t dma_async_memcpy_buf_to_pg(struct dma_chan *chan,
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index f1d2fba19ea0..03be7f29ca01 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -33,7 +33,8 @@ unsigned long hugetlb_total_pages(void);
 int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
                         unsigned long address, int write_access);
 int hugetlb_reserve_pages(struct inode *inode, long from, long to,
-                                                struct vm_area_struct *vma);
+                                                struct vm_area_struct *vma,
+                                                int acctflags);
 void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed);
 
 extern unsigned long hugepages_treat_as_movable;
@@ -138,7 +139,7 @@ static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)
 
 extern const struct file_operations hugetlbfs_file_operations;
 extern struct vm_operations_struct hugetlb_vm_ops;
-struct file *hugetlb_file_setup(const char *name, size_t);
+struct file *hugetlb_file_setup(const char *name, size_t, int);
 int hugetlb_get_quota(struct address_space *mapping, long delta);
 void hugetlb_put_quota(struct address_space *mapping, long delta);
 
@@ -158,9 +159,9 @@ static inline void set_file_hugepages(struct file *file)
 }
 #else /* !CONFIG_HUGETLBFS */
 
-#define is_file_hugepages(file)         0
-#define set_file_hugepages(file)        BUG()
-#define hugetlb_file_setup(name,size)   ERR_PTR(-ENOSYS)
+#define is_file_hugepages(file)                 0
+#define set_file_hugepages(file)                BUG()
+#define hugetlb_file_setup(name,size,acctflag)  ERR_PTR(-ENOSYS)
 
 #endif /* !CONFIG_HUGETLBFS */
 
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index ea0ea1a4c36f..e752d973fa21 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -48,12 +48,11 @@ extern struct fs_struct init_fs;
         .posix_timers    = LIST_HEAD_INIT(sig.posix_timers),            \
         .cpu_timers     = INIT_CPU_TIMERS(sig.cpu_timers),              \
         .rlim           = INIT_RLIMITS,                                 \
-        .cputime        = { .totals = {                                 \
-                .utime = cputime_zero,                                  \
-                .stime = cputime_zero,                                  \
-                .sum_exec_runtime = 0,                                  \
-                .lock = __SPIN_LOCK_UNLOCKED(sig.cputime.totals.lock),  \
-        }, },                                                           \
+        .cputimer       = {                                             \
+                .cputime = INIT_CPUTIME,                                \
+                .running = 0,                                           \
+                .lock = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock),        \
+        },                                                              \
 }
 
 extern struct nsproxy init_nsproxy;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e8ddc98b8405..323561582c10 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1129,8 +1129,7 @@ extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
         unsigned long flag, unsigned long pgoff);
 extern unsigned long mmap_region(struct file *file, unsigned long addr,
         unsigned long len, unsigned long flags,
-        unsigned int vm_flags, unsigned long pgoff,
-        int accountable);
+        unsigned int vm_flags, unsigned long pgoff);
 
 static inline unsigned long do_mmap(struct file *file, unsigned long addr,
         unsigned long len, unsigned long prot,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 699edb8e1853..426666dd8203 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -445,7 +445,6 @@ struct pacct_struct {
  * @utime:              time spent in user mode, in &cputime_t units
  * @stime:              time spent in kernel mode, in &cputime_t units
  * @sum_exec_runtime:   total time spent on the CPU, in nanoseconds
- * @lock:               lock for fields in this struct
  *
  * This structure groups together three kinds of CPU time that are
  * tracked for threads and thread groups.  Most things considering
@@ -456,23 +455,33 @@ struct task_cputime {
         cputime_t utime;
         cputime_t stime;
         unsigned long long sum_exec_runtime;
-        spinlock_t lock;
 };
 /* Alternate field names when used to cache expirations. */
 #define prof_exp        stime
 #define virt_exp        utime
 #define sched_exp       sum_exec_runtime
 
+#define INIT_CPUTIME    \
+        (struct task_cputime) {                                 \
+                .utime = cputime_zero,                          \
+                .stime = cputime_zero,                          \
+                .sum_exec_runtime = 0,                          \
+        }
+
 /**
- * struct thread_group_cputime - thread group interval timer counts
- * @totals:             thread group interval timers; substructure for
- *                      uniprocessor kernel, per-cpu for SMP kernel.
+ * struct thread_group_cputimer - thread group interval timer counts
+ * @cputime:            thread group interval timers.
+ * @running:            non-zero when there are timers running and
+ *                      @cputime receives updates.
+ * @lock:               lock for fields in this struct.
  *
  * This structure contains the version of task_cputime, above, that is
- * used for thread group CPU clock calculations.
+ * used for thread group CPU timer calculations.
  */
-struct thread_group_cputime {
-        struct task_cputime totals;
+struct thread_group_cputimer {
+        struct task_cputime cputime;
+        int running;
+        spinlock_t lock;
 };
 
 /*
@@ -521,10 +530,10 @@ struct signal_struct {
         cputime_t it_prof_incr, it_virt_incr;
 
         /*
-         * Thread group totals for process CPU clocks.
-         * See thread_group_cputime(), et al, for details.
+         * Thread group totals for process CPU timers.
+         * See thread_group_cputimer(), et al, for details.
          */
-        struct thread_group_cputime cputime;
+        struct thread_group_cputimer cputimer;
 
         /* Earliest-expiration cache. */
         struct task_cputime cputime_expires;
@@ -561,7 +570,7 @@ struct signal_struct {
          * Live threads maintain their own counters and add to these
          * in __exit_signal, except for the group leader.
          */
-        cputime_t cutime, cstime;
+        cputime_t utime, stime, cutime, cstime;
         cputime_t gtime;
         cputime_t cgtime;
         unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
@@ -570,6 +579,14 @@ struct signal_struct {
         struct task_io_accounting ioac;
 
         /*
+         * Cumulative ns of schedule CPU time fo dead threads in the
+         * group, not including a zombie group leader, (This only differs
+         * from jiffies_to_ns(utime + stime) if sched_clock uses something
+         * other than jiffies.)
+         */
+        unsigned long long sum_sched_runtime;
+
+        /*
          * We don't bother to synchronize most readers of this at all,
          * because there is no reader checking a limit that actually needs
          * to get both rlim_cur and rlim_max atomically, and either one
@@ -2185,27 +2202,14 @@ static inline int spin_needbreak(spinlock_t *lock)
 /*
  * Thread group CPU time accounting.
  */
-
-static inline
-void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times)
-{
-        struct task_cputime *totals = &tsk->signal->cputime.totals;
-        unsigned long flags;
-
-        spin_lock_irqsave(&totals->lock, flags);
-        *times = *totals;
-        spin_unlock_irqrestore(&totals->lock, flags);
-}
+void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times);
+void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
 
 static inline void thread_group_cputime_init(struct signal_struct *sig)
 {
-        sig->cputime.totals = (struct task_cputime){
-                .utime = cputime_zero,
-                .stime = cputime_zero,
-                .sum_exec_runtime = 0,
-        };
-
-        spin_lock_init(&sig->cputime.totals.lock);
+        sig->cputimer.cputime = INIT_CPUTIME;
+        spin_lock_init(&sig->cputimer.lock);
+        sig->cputimer.running = 0;
 }
 
 static inline void thread_group_cputime_free(struct signal_struct *sig)
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 0eda02ff2414..f9f900cfd066 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -95,13 +95,13 @@ struct old_linux_dirent;
 #define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__)
 #define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__)
 
-#define SYSCALL_DEFINE0(name)   asmlinkage long sys_##name(void)
-#define SYSCALL_DEFINE1(...)    SYSCALL_DEFINEx(1, __VA_ARGS__)
-#define SYSCALL_DEFINE2(...)    SYSCALL_DEFINEx(2, __VA_ARGS__)
-#define SYSCALL_DEFINE3(...)    SYSCALL_DEFINEx(3, __VA_ARGS__)
-#define SYSCALL_DEFINE4(...)    SYSCALL_DEFINEx(4, __VA_ARGS__)
-#define SYSCALL_DEFINE5(...)    SYSCALL_DEFINEx(5, __VA_ARGS__)
-#define SYSCALL_DEFINE6(...)    SYSCALL_DEFINEx(6, __VA_ARGS__)
+#define SYSCALL_DEFINE0(name)      asmlinkage long sys_##name(void)
+#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
+#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
+#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
+#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
+#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
+#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
 
 #ifdef CONFIG_PPC64
 #define SYSCALL_ALIAS(alias, name)                                      \
@@ -121,21 +121,21 @@ struct old_linux_dirent;
 
 #define SYSCALL_DEFINE(name) static inline long SYSC_##name
 #define SYSCALL_DEFINEx(x, name, ...)                                   \
-        asmlinkage long sys_##name(__SC_DECL##x(__VA_ARGS__));          \
-        static inline long SYSC_##name(__SC_DECL##x(__VA_ARGS__));      \
-        asmlinkage long SyS_##name(__SC_LONG##x(__VA_ARGS__))           \
+        asmlinkage long sys##name(__SC_DECL##x(__VA_ARGS__));           \
+        static inline long SYSC##name(__SC_DECL##x(__VA_ARGS__));       \
+        asmlinkage long SyS##name(__SC_LONG##x(__VA_ARGS__))            \
         {                                                               \
                 __SC_TEST##x(__VA_ARGS__);                              \
-                return (long) SYSC_##name(__SC_CAST##x(__VA_ARGS__));   \
+                return (long) SYSC##name(__SC_CAST##x(__VA_ARGS__));    \
         }                                                               \
-        SYSCALL_ALIAS(sys_##name, SyS_##name);                          \
-        static inline long SYSC_##name(__SC_DECL##x(__VA_ARGS__))
+        SYSCALL_ALIAS(sys##name, SyS##name);                            \
+        static inline long SYSC##name(__SC_DECL##x(__VA_ARGS__))
 
 #else /* CONFIG_HAVE_SYSCALL_WRAPPERS */
 
 #define SYSCALL_DEFINE(name) asmlinkage long sys_##name
 #define SYSCALL_DEFINEx(x, name, ...)                                   \
-        asmlinkage long sys_##name(__SC_DECL##x(__VA_ARGS__))
+        asmlinkage long sys##name(__SC_DECL##x(__VA_ARGS__))
 
 #endif /* CONFIG_HAVE_SYSCALL_WRAPPERS */