Merge branch 'master' into upstream

6 files changed, 23 insertions, 51 deletions

diff --git a/include/asm-i386/alternative.h b/include/asm-i386/alternative.h
index 96adbabec740..b01a7ec409ce 100644
--- a/include/asm-i386/alternative.h
+++ b/include/asm-i386/alternative.h
@@ -88,9 +88,6 @@ static inline void alternatives_smp_switch(int smp) {}
 /*
  * Alternative inline assembly for SMP.
  *
- * alternative_smp() takes two versions (SMP first, UP second) and is
- * for more complex stuff such as spinlocks.
- *
  * The LOCK_PREFIX macro defined here replaces the LOCK and
  * LOCK_PREFIX macros used everywhere in the source tree.
  *
@@ -110,21 +107,6 @@ static inline void alternatives_smp_switch(int smp) {}
  */
 
 #ifdef CONFIG_SMP
-#define alternative_smp(smpinstr, upinstr, args...)                     \
-        asm volatile ("661:\n\t" smpinstr "\n662:\n"                    \
-                      ".section .smp_altinstructions,\"a\"\n"           \
-                      "  .align 4\n"                                    \
-                      "  .long 661b\n"            /* label */           \
-                      "  .long 663f\n"            /* new instruction */ \
-                      "  .byte 0x68\n"            /* X86_FEATURE_UP */  \
-                      "  .byte 662b-661b\n"       /* sourcelen */       \
-                      "  .byte 664f-663f\n"       /* replacementlen */  \
-                      ".previous\n"                                     \
-                      ".section .smp_altinstr_replacement,\"awx\"\n"    \
-                      "663:\n\t" upinstr "\n"     /* replacement */     \
-                      "664:\n\t.fill 662b-661b,1,0x42\n" /* space for original */ \
-                      ".previous" : args)
-
 #define LOCK_PREFIX \
                 ".section .smp_locks,\"a\"\n"   \
                 "  .align 4\n"                  \
@@ -133,8 +115,6 @@ static inline void alternatives_smp_switch(int smp) {}
                 "661:\n\tlock; "
 
 #else /* ! CONFIG_SMP */
-#define alternative_smp(smpinstr, upinstr, args...) \
-        asm volatile (upinstr : args)
 #define LOCK_PREFIX ""
 #endif
 
diff --git a/include/asm-i386/mach-default/mach_mpspec.h b/include/asm-i386/mach-default/mach_mpspec.h
index 6b5dadcf1d0e..51c9a9775932 100644
--- a/include/asm-i386/mach-default/mach_mpspec.h
+++ b/include/asm-i386/mach-default/mach_mpspec.h
@@ -3,6 +3,10 @@
 
 #define MAX_IRQ_SOURCES 256
 
+#if CONFIG_BASE_SMALL == 0
+#define MAX_MP_BUSSES 256
+#else
 #define MAX_MP_BUSSES 32
+#endif
 
 #endif /* __ASM_MACH_MPSPEC_H */
diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h
index 96b0bef2ea56..87c069ccba08 100644
--- a/include/asm-i386/rwlock.h
+++ b/include/asm-i386/rwlock.h
@@ -21,23 +21,21 @@
 #define RW_LOCK_BIAS_STR        "0x01000000"
 
 #define __build_read_lock_ptr(rw, helper)   \
-        alternative_smp("lock; subl $1,(%0)\n\t" \
+        asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" \
                         "jns 1f\n" \
                         "call " helper "\n\t" \
-                        "1:\n", \
-                        "subl $1,(%0)\n\t", \
-                        :"a" (rw) : "memory")
+                        "1:\n" \
+                        ::"a" (rw) : "memory")
 
 #define __build_read_lock_const(rw, helper)   \
-        alternative_smp("lock; subl $1,%0\n\t" \
+        asm volatile(LOCK_PREFIX " subl $1,%0\n\t" \
                         "jns 1f\n" \
                         "pushl %%eax\n\t" \
                         "leal %0,%%eax\n\t" \
                         "call " helper "\n\t" \
                         "popl %%eax\n\t" \
-                        "1:\n", \
-                        "subl $1,%0\n\t", \
-                        "+m" (*(volatile int *)rw) : : "memory")
+                        "1:\n" \
+                        :"+m" (*(volatile int *)rw) : : "memory")
 
 #define __build_read_lock(rw, helper)   do { \
                                                 if (__builtin_constant_p(rw)) \
@@ -47,23 +45,21 @@
                                         } while (0)
 
 #define __build_write_lock_ptr(rw, helper) \
-        alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
+        asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
                         "jz 1f\n" \
                         "call " helper "\n\t" \
-                        "1:\n", \
-                        "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t", \
-                        :"a" (rw) : "memory")
+                        "1:\n" \
+                        ::"a" (rw) : "memory")
 
 #define __build_write_lock_const(rw, helper) \
-        alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
+        asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
                         "jz 1f\n" \
                         "pushl %%eax\n\t" \
                         "leal %0,%%eax\n\t" \
                         "call " helper "\n\t" \
                         "popl %%eax\n\t" \
-                        "1:\n", \
-                        "subl $" RW_LOCK_BIAS_STR ",%0\n\t", \
-                        "+m" (*(volatile int *)rw) : : "memory")
+                        "1:\n" \
+                        :"+m" (*(volatile int *)rw) : : "memory")
 
 #define __build_write_lock(rw, helper)  do { \
                                                 if (__builtin_constant_p(rw)) \
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h
index d816c62a7a1d..d1020363c41a 100644
--- a/include/asm-i386/spinlock.h
+++ b/include/asm-i386/spinlock.h
@@ -22,7 +22,7 @@
 
 #define __raw_spin_lock_string \
         "\n1:\t" \
-        "lock ; decb %0\n\t" \
+        LOCK_PREFIX " ; decb %0\n\t" \
         "jns 3f\n" \
         "2:\t" \
         "rep;nop\n\t" \
@@ -38,7 +38,7 @@
  */
 #define __raw_spin_lock_string_flags \
         "\n1:\t" \
-        "lock ; decb %0\n\t" \
+        LOCK_PREFIX " ; decb %0\n\t" \
         "jns 5f\n" \
         "2:\t" \
         "testl $0x200, %1\n\t" \
@@ -57,15 +57,9 @@
         "jmp 4b\n" \
         "5:\n\t"
 
-#define __raw_spin_lock_string_up \
-        "\n\tdecb %0"
-
 static inline void __raw_spin_lock(raw_spinlock_t *lock)
 {
-        alternative_smp(
-                __raw_spin_lock_string,
-                __raw_spin_lock_string_up,
-                "+m" (lock->slock) : : "memory");
+        asm(__raw_spin_lock_string : "+m" (lock->slock) : : "memory");
 }
 
 /*
@@ -76,10 +70,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 #ifndef CONFIG_PROVE_LOCKING
 static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
 {
-        alternative_smp(
-                __raw_spin_lock_string_flags,
-                __raw_spin_lock_string_up,
-                "+m" (lock->slock) : "r" (flags) : "memory");
+        asm(__raw_spin_lock_string_flags : "+m" (lock->slock) : "r" (flags) : "memory");
 }
 #endif
 
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index fc1c8ddae149..d983b74e4d9f 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -324,8 +324,6 @@
 #define __NR_vmsplice           316
 #define __NR_move_pages         317
 
-#ifdef __KERNEL__
-
 #define NR_syscalls 318
 
 /*
@@ -425,6 +423,8 @@ __asm__ volatile ("push %%ebp ; push %%ebx ; movl 4(%2),%%ebp ; " \
 __syscall_return(type,__res); \
 }
 
+#ifdef __KERNEL__
+
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h
index 69f0f1df6722..4c1a0b968569 100644
--- a/include/asm-i386/unwind.h
+++ b/include/asm-i386/unwind.h
@@ -87,6 +87,7 @@ static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
 #else
 
 #define UNW_PC(frame) ((void)(frame), 0)
+#define UNW_SP(frame) ((void)(frame), 0)
 
 static inline int arch_unw_user_mode(const void *info)
 {