2 files changed, 120 insertions, 0 deletions

diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
new file mode 100644
index 000000000000..e0a28b925ef0
--- /dev/null
+++ b/include/asm-generic/atomic.h
@@ -0,0 +1,116 @@
+#ifndef _ASM_GENERIC_ATOMIC_H
+#define _ASM_GENERIC_ATOMIC_H
+/*
+ * Copyright (C) 2005 Silicon Graphics, Inc.
+ *      Christoph Lameter <clameter@sgi.com>
+ *
+ * Allows to provide arch independent atomic definitions without the need to
+ * edit all arch specific atomic.h files.
+ */
+
+
+/*
+ * Suppport for atomic_long_t
+ *
+ * Casts for parameters are avoided for existing atomic functions in order to
+ * avoid issues with cast-as-lval under gcc 4.x and other limitations that the
+ * macros of a platform may have.
+ */
+
+#if BITS_PER_LONG == 64
+
+typedef atomic64_t atomic_long_t;
+
+#define ATOMIC_LONG_INIT(i)     ATOMIC64_INIT(i)
+
+static inline long atomic_long_read(atomic_long_t *l)
+{
+        atomic64_t *v = (atomic64_t *)l;
+
+        return (long)atomic64_read(v);
+}
+
+static inline void atomic_long_set(atomic_long_t *l, long i)
+{
+        atomic64_t *v = (atomic64_t *)l;
+
+        atomic_set(v, i);
+}
+
+static inline void atomic_long_inc(atomic_long_t *l)
+{
+        atomic64_t *v = (atomic64_t *)l;
+
+        atomic64_inc(v);
+}
+
+static inline void atomic_long_dec(atomic_long_t *l)
+{
+        atomic64_t *v = (atomic64_t *)l;
+
+        atomic64_dec(v);
+}
+
+static inline void atomic_long_add(long i, atomic_long_t *l)
+{
+        atomic64_t *v = (atomic64_t *)l;
+
+        atomic64_add(i, v);
+}
+
+static inline void atomic_long_sub(long i, atomic_long_t *l)
+{
+        atomic64_t *v = (atomic64_t *)l;
+
+        atomic64_sub(i, v);
+}
+
+#else
+
+typedef atomic_t atomic_long_t;
+
+#define ATOMIC_LONG_INIT(i)     ATOMIC_INIT(i)
+static inline long atomic_long_read(atomic_long_t *l)
+{
+        atomic_t *v = (atomic_t *)l;
+
+        return (long)atomic_read(v);
+}
+
+static inline void atomic_long_set(atomic_long_t *l, long i)
+{
+        atomic_t *v = (atomic_t *)l;
+
+        atomic_set(v, i);
+}
+
+static inline void atomic_long_inc(atomic_long_t *l)
+{
+        atomic_t *v = (atomic_t *)l;
+
+        atomic_inc(v);
+}
+
+static inline void atomic_long_dec(atomic_long_t *l)
+{
+        atomic_t *v = (atomic_t *)l;
+
+        atomic_dec(v);
+}
+
+static inline void atomic_long_add(long i, atomic_long_t *l)
+{
+        atomic_t *v = (atomic_t *)l;
+
+        atomic_add(i, v);
+}
+
+static inline void atomic_long_sub(long i, atomic_long_t *l)
+{
+        atomic_t *v = (atomic_t *)l;
+
+        atomic_sub(i, v);
+}
+
+#endif
+#endif
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 094d4917c1a9..35de20cf8fac 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -10,6 +10,8 @@
 #define ALIGN_FUNCTION()  . = ALIGN(8)
 
 #define RODATA                                                          \
+        . = ALIGN(4096);                                                \
+        __start_rodata = .;                                             \
         .rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {           \
                 *(.rodata) *(.rodata.*)                                 \
                 *(__vermagic)           /* Kernel version magic */      \
@@ -74,6 +76,8 @@
         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
                 *(__ksymtab_strings)                                    \
         }                                                               \
+        __end_rodata = .;                                               \
+        . = ALIGN(4096);                                                \
                                                                         \
         /* Built-in module parameters. */                               \
         __param : AT(ADDR(__param) - LOAD_OFFSET) {                     \