12 files changed, 102 insertions, 52 deletions

diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index fd57b8477fab..e994197f84b7 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -120,14 +120,23 @@ static inline void atomic_dec(atomic_t *v)
 #define atomic_dec_and_test(v)          (atomic_sub_return(1, (v)) == 0)
 #define atomic_inc_and_test(v)          (atomic_add_return(1, (v)) == 0)
 
-#define atomic_add_unless(v, a, u)                              \
-({                                                              \
-        int c, old;                                             \
-        c = atomic_read(v);                                     \
-        while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
-                c = old;                                        \
-        c != (u);                                               \
-})
+#define atomic_xchg(ptr, v)             (xchg(&(ptr)->counter, (v)))
+#define atomic_cmpxchg(v, old, new)     (cmpxchg(&((v)->counter), (old), (new)))
+
+#define cmpxchg_local(ptr, o, n)                                               \
+        ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
+                        (unsigned long)(n), sizeof(*(ptr))))
+
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+
+static inline int atomic_add_unless(atomic_t *v, int a, int u)
+{
+  int c, old;
+  c = atomic_read(v);
+  while (c != u && (old = atomic_cmpxchg(v, c, c + a)) != c)
+    c = old;
+  return c != u;
+}
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
@@ -141,15 +150,6 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
         raw_local_irq_restore(flags);
 }
 
-#define atomic_xchg(ptr, v)             (xchg(&(ptr)->counter, (v)))
-#define atomic_cmpxchg(v, old, new)     (cmpxchg(&((v)->counter), (old), (new)))
-
-#define cmpxchg_local(ptr, o, n)                                               \
-        ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
-                        (unsigned long)(n), sizeof(*(ptr))))
-
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-
 /* Assume that atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()     barrier()
 #define smp_mb__after_atomic_dec()      barrier()
diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h
index 1914e9742512..110fa700f853 100644
--- a/include/asm-generic/bitops/find.h
+++ b/include/asm-generic/bitops/find.h
@@ -1,15 +1,50 @@
 #ifndef _ASM_GENERIC_BITOPS_FIND_H_
 #define _ASM_GENERIC_BITOPS_FIND_H_
 
-#ifndef CONFIG_GENERIC_FIND_NEXT_BIT
+/**
+ * find_next_bit - find the next set bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The bitmap size in bits
+ */
 extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
                 size, unsigned long offset);
 
+/**
+ * find_next_zero_bit - find the next cleared bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The bitmap size in bits
+ */
 extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
                 long size, unsigned long offset);
-#endif
+
+#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
+
+/**
+ * find_first_bit - find the first set bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum size to search
+ *
+ * Returns the bit number of the first set bit.
+ */
+extern unsigned long find_first_bit(const unsigned long *addr,
+                                    unsigned long size);
+
+/**
+ * find_first_zero_bit - find the first cleared bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum size to search
+ *
+ * Returns the bit number of the first cleared bit.
+ */
+extern unsigned long find_first_zero_bit(const unsigned long *addr,
+                                         unsigned long size);
+#else /* CONFIG_GENERIC_FIND_FIRST_BIT */
 
 #define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
 #define find_first_zero_bit(addr, size) find_next_zero_bit((addr), (size), 0)
 
+#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
+
 #endif /*_ASM_GENERIC_BITOPS_FIND_H_ */
diff --git a/include/asm-generic/cputime.h b/include/asm-generic/cputime.h
index ca0f239f0e13..2bcc5c7c22a6 100644
--- a/include/asm-generic/cputime.h
+++ b/include/asm-generic/cputime.h
@@ -33,10 +33,10 @@ typedef u64 cputime64_t;
 
 
 /*
- * Convert cputime to milliseconds and back.
+ * Convert cputime to microseconds and back.
  */
-#define cputime_to_msecs(__ct)          jiffies_to_msecs(__ct)
-#define msecs_to_cputime(__msecs)       msecs_to_jiffies(__msecs)
+#define cputime_to_usecs(__ct)          jiffies_to_usecs(__ct);
+#define usecs_to_cputime(__msecs)       usecs_to_jiffies(__msecs);
 
 /*
  * Convert cputime to seconds and back.
diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index a70b2d2bfc14..0fc16e3f0bfc 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -122,7 +122,7 @@
 
 struct f_owner_ex {
         int     type;
-        pid_t   pid;
+        __kernel_pid_t  pid;
 };
 
 /* for F_[GET|SET]FL */
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 8ca18e26d7e3..ff5c66080c8c 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -210,7 +210,7 @@ extern void gpio_unexport(unsigned gpio);
 
 #endif  /* CONFIG_GPIO_SYSFS */
 
-#else   /* !CONFIG_HAVE_GPIO_LIB */
+#else   /* !CONFIG_GPIOLIB */
 
 static inline int gpio_is_valid(int number)
 {
@@ -239,7 +239,7 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value)
         gpio_set_value(gpio, value);
 }
 
-#endif /* !CONFIG_HAVE_GPIO_LIB */
+#endif /* !CONFIG_GPIOLIB */
 
 #ifndef CONFIG_GPIO_SYSFS
 
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 118601fce92d..3577ca11a0be 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -19,7 +19,9 @@
 #include <asm-generic/iomap.h>
 #endif
 
+#ifndef mmiowb
 #define mmiowb() do {} while (0)
+#endif
 
 /*****************************************************************************/
 /*
@@ -28,39 +30,51 @@
  * differently. On the simple architectures, we just read/write the
  * memory location directly.
  */
+#ifndef __raw_readb
 static inline u8 __raw_readb(const volatile void __iomem *addr)
 {
         return *(const volatile u8 __force *) addr;
 }
+#endif
 
+#ifndef __raw_readw
 static inline u16 __raw_readw(const volatile void __iomem *addr)
 {
         return *(const volatile u16 __force *) addr;
 }
+#endif
 
+#ifndef __raw_readl
 static inline u32 __raw_readl(const volatile void __iomem *addr)
 {
         return *(const volatile u32 __force *) addr;
 }
+#endif
 
 #define readb __raw_readb
 #define readw(addr) __le16_to_cpu(__raw_readw(addr))
 #define readl(addr) __le32_to_cpu(__raw_readl(addr))
 
+#ifndef __raw_writeb
 static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
 {
         *(volatile u8 __force *) addr = b;
 }
+#endif
 
+#ifndef __raw_writew
 static inline void __raw_writew(u16 b, volatile void __iomem *addr)
 {
         *(volatile u16 __force *) addr = b;
 }
+#endif
 
+#ifndef __raw_writel
 static inline void __raw_writel(u32 b, volatile void __iomem *addr)
 {
         *(volatile u32 __force *) addr = b;
 }
+#endif
 
 #define writeb __raw_writeb
 #define writew(b,addr) __raw_writew(__cpu_to_le16(b),addr)
@@ -122,6 +136,7 @@ static inline void outl(u32 b, unsigned long addr)
 #define outw_p(x, addr) outw((x), (addr))
 #define outl_p(x, addr) outl((x), (addr))
 
+#ifndef insb
 static inline void insb(unsigned long addr, void *buffer, int count)
 {
         if (count) {
@@ -132,7 +147,9 @@ static inline void insb(unsigned long addr, void *buffer, int count)
                 } while (--count);
         }
 }
+#endif
 
+#ifndef insw
 static inline void insw(unsigned long addr, void *buffer, int count)
 {
         if (count) {
@@ -143,7 +160,9 @@ static inline void insw(unsigned long addr, void *buffer, int count)
                 } while (--count);
         }
 }
+#endif
 
+#ifndef insl
 static inline void insl(unsigned long addr, void *buffer, int count)
 {
         if (count) {
@@ -154,7 +173,9 @@ static inline void insl(unsigned long addr, void *buffer, int count)
                 } while (--count);
         }
 }
+#endif
 
+#ifndef outsb
 static inline void outsb(unsigned long addr, const void *buffer, int count)
 {
         if (count) {
@@ -164,7 +185,9 @@ static inline void outsb(unsigned long addr, const void *buffer, int count)
                 } while (--count);
         }
 }
+#endif
 
+#ifndef outsw
 static inline void outsw(unsigned long addr, const void *buffer, int count)
 {
         if (count) {
@@ -174,7 +197,9 @@ static inline void outsw(unsigned long addr, const void *buffer, int count)
                 } while (--count);
         }
 }
+#endif
 
+#ifndef outsl
 static inline void outsl(unsigned long addr, const void *buffer, int count)
 {
         if (count) {
@@ -184,6 +209,7 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
                 } while (--count);
         }
 }
+#endif
 
 #ifndef CONFIG_GENERIC_IOMAP
 #define ioread8(addr)           readb(addr)
diff --git a/include/asm-generic/ioctls.h b/include/asm-generic/ioctls.h
index 8554cb6a81b9..a3216655d657 100644
--- a/include/asm-generic/ioctls.h
+++ b/include/asm-generic/ioctls.h
@@ -62,7 +62,9 @@
 #define TCSETSW2        _IOW('T', 0x2C, struct termios2)
 #define TCSETSF2        _IOW('T', 0x2D, struct termios2)
 #define TIOCGRS485      0x542E
+#ifndef TIOCSRS485
 #define TIOCSRS485      0x542F
+#endif
 #define TIOCGPTN        _IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK      _IOW('T', 0x31, int)  /* Lock/unlock Pty */
 #define TCGETX          0x5432 /* SYS5 TCGETX compatibility */
diff --git a/include/asm-generic/kdebug.h b/include/asm-generic/kdebug.h
index 11e57b6a85fc..d1814497bcdb 100644
--- a/include/asm-generic/kdebug.h
+++ b/include/asm-generic/kdebug.h
@@ -3,7 +3,7 @@
 
 enum die_val {
         DIE_UNUSED,
-        DIE_OOPS=1
+        DIE_OOPS = 1,
 };
 
 #endif /* _ASM_GENERIC_KDEBUG_H */
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 08923b684768..d17784ea37ff 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -55,14 +55,18 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
  */
 #define per_cpu(var, cpu) \
         (*SHIFT_PERCPU_PTR(&(var), per_cpu_offset(cpu)))
-#define __get_cpu_var(var) \
-        (*SHIFT_PERCPU_PTR(&(var), my_cpu_offset))
-#define __raw_get_cpu_var(var) \
-        (*SHIFT_PERCPU_PTR(&(var), __my_cpu_offset))
 
-#define this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, my_cpu_offset)
+#ifndef __this_cpu_ptr
 #define __this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset)
+#endif
+#ifdef CONFIG_DEBUG_PREEMPT
+#define this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, my_cpu_offset)
+#else
+#define this_cpu_ptr(ptr) __this_cpu_ptr(ptr)
+#endif
 
+#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))
+#define __raw_get_cpu_var(var) (*__this_cpu_ptr(&(var)))
 
 #ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
 extern void setup_per_cpu_areas(void);
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index f4d4120e5128..6f3c6ae4fe03 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -108,7 +108,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
 #endif
 
 #ifndef __HAVE_ARCH_PAGE_CLEAR_DIRTY
-#define page_clear_dirty(page)          do { } while (0)
+#define page_clear_dirty(page, mapped)  do { } while (0)
 #endif
 
 #ifndef __HAVE_ARCH_PAGE_TEST_DIRTY
diff --git a/include/asm-generic/system.h b/include/asm-generic/system.h
index efa403b5e121..4b0b9cbbfae5 100644
--- a/include/asm-generic/system.h
+++ b/include/asm-generic/system.h
@@ -21,6 +21,7 @@
 #include <linux/irqflags.h>
 
 #include <asm/cmpxchg-local.h>
+#include <asm/cmpxchg.h>
 
 struct task_struct;
 
@@ -136,25 +137,6 @@ unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
 #define xchg(ptr, x) \
         ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
 
-static inline unsigned long __cmpxchg(volatile unsigned long *m,
-                                      unsigned long old, unsigned long new)
-{
-        unsigned long retval;
-        unsigned long flags;
-
-        local_irq_save(flags);
-        retval = *m;
-        if (retval == old)
-                *m = new;
-        local_irq_restore(flags);
-        return retval;
-}
-
-#define cmpxchg(ptr, o, n)                                      \
-        ((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
-                                        (unsigned long)(o),     \
-                                        (unsigned long)(n)))
-
 #endif /* !__ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index f4229fb315e1..2c0fc10956ba 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -150,6 +150,7 @@
 #define DATA_DATA                                                       \
         *(.data)                                                        \
         *(.ref.data)                                                    \
+        *(.data..shared_aligned) /* percpu related */                   \
         DEV_KEEP(init.data)                                             \
         DEV_KEEP(exit.data)                                             \
         CPU_KEEP(init.data)                                             \
@@ -636,7 +637,7 @@
 
 #ifdef CONFIG_BLK_DEV_INITRD
 #define INIT_RAM_FS                                                     \
-        . = ALIGN(PAGE_SIZE);                                           \
+        . = ALIGN(4);                                                   \
         VMLINUX_SYMBOL(__initramfs_start) = .;                          \
         *(.init.ramfs)                                                  \
         VMLINUX_SYMBOL(__initramfs_end) = .;