10 files changed, 54 insertions, 18 deletions

diff --git a/include/asm-generic/bitops/atomic.h b/include/asm-generic/bitops/atomic.h
index c8946465e63a..ecc44a8e2b44 100644
--- a/include/asm-generic/bitops/atomic.h
+++ b/include/asm-generic/bitops/atomic.h
@@ -15,19 +15,19 @@
 #  define ATOMIC_HASH_SIZE 4
 #  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) a)/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
-extern raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
 /* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
 #define _atomic_spin_lock_irqsave(l,f) do {     \
-        raw_spinlock_t *s = ATOMIC_HASH(l);     \
+        arch_spinlock_t *s = ATOMIC_HASH(l);    \
         local_irq_save(f);                      \
-        __raw_spin_lock(s);                     \
+        arch_spin_lock(s);                      \
 } while(0)
 
 #define _atomic_spin_unlock_irqrestore(l,f) do {        \
-        raw_spinlock_t *s = ATOMIC_HASH(l);             \
-        __raw_spin_unlock(s);                           \
+        arch_spinlock_t *s = ATOMIC_HASH(l);            \
+        arch_spin_unlock(s);                            \
         local_irq_restore(f);                           \
 } while(0)
 
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 4b6755984d24..18c435d7c082 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -113,22 +113,22 @@ extern void warn_slowpath_null(const char *file, const int line);
 #endif
 
 #define WARN_ON_ONCE(condition) ({                              \
-        static int __warned;                                    \
+        static bool __warned;                                   \
         int __ret_warn_once = !!(condition);                    \
                                                                 \
         if (unlikely(__ret_warn_once))                          \
                 if (WARN_ON(!__warned))                         \
-                        __warned = 1;                           \
+                        __warned = true;                        \
         unlikely(__ret_warn_once);                              \
 })
 
 #define WARN_ONCE(condition, format...) ({                      \
-        static int __warned;                                    \
+        static bool __warned;                                   \
         int __ret_warn_once = !!(condition);                    \
                                                                 \
         if (unlikely(__ret_warn_once))                          \
                 if (WARN(!__warned, format))                    \
-                        __warned = 1;                           \
+                        __warned = true;                        \
         unlikely(__ret_warn_once);                              \
 })
 
diff --git a/include/asm-generic/cacheflush.h b/include/asm-generic/cacheflush.h
index ba4ec39a1131..57b5c3c82e86 100644
--- a/include/asm-generic/cacheflush.h
+++ b/include/asm-generic/cacheflush.h
@@ -13,6 +13,7 @@
 #define flush_cache_dup_mm(mm)                  do { } while (0)
 #define flush_cache_range(vma, start, end)      do { } while (0)
 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 #define flush_dcache_page(page)                 do { } while (0)
 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index 495dc8af4044..681ddf3e844c 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -3,8 +3,6 @@
 
 #include <linux/types.h>
 
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
 #define O_ACCMODE       00000003
 #define O_RDONLY        00000000
 #define O_WRONLY        00000001
@@ -27,8 +25,8 @@
 #ifndef O_NONBLOCK
 #define O_NONBLOCK      00004000
 #endif
-#ifndef O_SYNC
-#define O_SYNC          00010000
+#ifndef O_DSYNC
+#define O_DSYNC         00010000        /* used to be O_SYNC, see below */
 #endif
 #ifndef FASYNC
 #define FASYNC          00020000        /* fcntl, for BSD compatibility */
@@ -51,6 +49,25 @@
 #ifndef O_CLOEXEC
 #define O_CLOEXEC       02000000        /* set close_on_exec */
 #endif
+
+/*
+ * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag.  We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics.  It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#ifndef O_SYNC
+#define __O_SYNC        04000000
+#define O_SYNC          (__O_SYNC|O_DSYNC)
+#endif
+
 #ifndef O_NDELAY
 #define O_NDELAY        O_NONBLOCK
 #endif
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 66d6106a2067..204bed37e82d 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -28,6 +28,7 @@ static inline int gpio_is_valid(int number)
         return ((unsigned)number) < ARCH_NR_GPIOS;
 }
 
+struct device;
 struct seq_file;
 struct module;
 
@@ -181,6 +182,8 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value)
 
 #ifndef CONFIG_GPIO_SYSFS
 
+struct device;
+
 /* sysfs support is only available with gpiolib, where it's optional */
 
 static inline int gpio_export(unsigned gpio, bool direction_may_change)
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index 4c8d0afae711..fb2d63f13f4c 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -47,7 +47,7 @@
 
 #elif defined(CONFIG_SPARSEMEM_VMEMMAP)
 
-/* memmap is virtually contigious.  */
+/* memmap is virtually contiguous.  */
 #define __pfn_to_page(pfn)      (vmemmap + (pfn))
 #define __page_to_pfn(page)     (unsigned long)((page) - vmemmap)
 
diff --git a/include/asm-generic/mman-common.h b/include/asm-generic/mman-common.h
index 5ee13b2fd223..20111265afd8 100644
--- a/include/asm-generic/mman-common.h
+++ b/include/asm-generic/mman-common.h
@@ -19,6 +19,11 @@
 #define MAP_TYPE        0x0f            /* Mask for type of mapping */
 #define MAP_FIXED       0x10            /* Interpret addr exactly */
 #define MAP_ANONYMOUS   0x20            /* don't use a file */
+#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED
+# define MAP_UNINITIALIZED 0x4000000    /* For anonymous mmap, memory could be uninitialized */
+#else
+# define MAP_UNINITIALIZED 0x0          /* Don't support this flag */
+#endif
 
 #define MS_ASYNC        1               /* sync memory asynchronously */
 #define MS_INVALIDATE   2               /* invalidate the caches */
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 90079c373f1c..8087b90d4673 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -56,6 +56,9 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
 #define __raw_get_cpu_var(var) \
         (*SHIFT_PERCPU_PTR(&per_cpu_var(var), __my_cpu_offset))
 
+#define this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, my_cpu_offset)
+#define __this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset)
+
 
 #ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
 extern void setup_per_cpu_areas(void);
@@ -66,6 +69,8 @@ extern void setup_per_cpu_areas(void);
 #define per_cpu(var, cpu)                       (*((void)(cpu), &per_cpu_var(var)))
 #define __get_cpu_var(var)                      per_cpu_var(var)
 #define __raw_get_cpu_var(var)                  per_cpu_var(var)
+#define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0)
+#define __this_cpu_ptr(ptr) this_cpu_ptr(ptr)
 
 #endif  /* SMP */
 
diff --git a/include/asm-generic/socket.h b/include/asm-generic/socket.h
index 538991cef6f0..9a6115e7cf63 100644
--- a/include/asm-generic/socket.h
+++ b/include/asm-generic/socket.h
@@ -63,4 +63,5 @@
 #define SO_PROTOCOL             38
 #define SO_DOMAIN               39
 
+#define SO_RXQ_OVFL             40
 #endif /* __ASM_GENERIC_SOCKET_H */
diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h
index d76b66acea95..6a0b30f78a62 100644
--- a/include/asm-generic/unistd.h
+++ b/include/asm-generic/unistd.h
@@ -622,16 +622,20 @@ __SYSCALL(__NR_move_pages, sys_move_pages)
 __SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
 #define __NR_perf_event_open 241
 __SYSCALL(__NR_perf_event_open, sys_perf_event_open)
+#define __NR_accept4 242
+__SYSCALL(__NR_accept4, sys_accept4)
+#define __NR_recvmmsg 243
+__SYSCALL(__NR_recvmmsg, sys_recvmmsg)
 
 #undef __NR_syscalls
-#define __NR_syscalls 242
+#define __NR_syscalls 244
 
 /*
  * All syscalls below here should go away really,
  * these are provided for both review and as a porting
  * help for the C library version.
 *
- * Last chance: are any of these important enought to
+ * Last chance: are any of these important enough to
  * enable by default?
  */
 #ifdef __ARCH_WANT_SYSCALL_NO_AT
@@ -802,7 +806,7 @@ __SYSCALL(__NR_fork, sys_ni_syscall)
 #define __NR_statfs __NR3264_statfs
 #define __NR_fstatfs __NR3264_fstatfs
 #define __NR_truncate __NR3264_truncate
-#define __NR_ftruncate __NR3264_truncate
+#define __NR_ftruncate __NR3264_ftruncate
 #define __NR_lseek __NR3264_lseek
 #define __NR_sendfile __NR3264_sendfile
 #define __NR_newfstatat __NR3264_fstatat
@@ -818,7 +822,7 @@ __SYSCALL(__NR_fork, sys_ni_syscall)
 #define __NR_statfs64 __NR3264_statfs
 #define __NR_fstatfs64 __NR3264_fstatfs
 #define __NR_truncate64 __NR3264_truncate
-#define __NR_ftruncate64 __NR3264_truncate
+#define __NR_ftruncate64 __NR3264_ftruncate
 #define __NR_llseek __NR3264_lseek
 #define __NR_sendfile64 __NR3264_sendfile
 #define __NR_fstatat64 __NR3264_fstatat