10 files changed, 74 insertions, 75 deletions

diff --git a/include/asm-i386/atomic.h b/include/asm-i386/atomic.h
index 4f061fa73794..51a166242522 100644
--- a/include/asm-i386/atomic.h
+++ b/include/asm-i386/atomic.h
@@ -46,8 +46,8 @@ static __inline__ void atomic_add(int i, atomic_t *v)
 {
         __asm__ __volatile__(
                 LOCK_PREFIX "addl %1,%0"
-                :"=m" (v->counter)
-                :"ir" (i), "m" (v->counter));
+                :"+m" (v->counter)
+                :"ir" (i));
 }
 
 /**
@@ -61,8 +61,8 @@ static __inline__ void atomic_sub(int i, atomic_t *v)
 {
         __asm__ __volatile__(
                 LOCK_PREFIX "subl %1,%0"
-                :"=m" (v->counter)
-                :"ir" (i), "m" (v->counter));
+                :"+m" (v->counter)
+                :"ir" (i));
 }
 
 /**
@@ -80,8 +80,8 @@ static __inline__ int atomic_sub_and_test(int i, atomic_t *v)
 
         __asm__ __volatile__(
                 LOCK_PREFIX "subl %2,%0; sete %1"
-                :"=m" (v->counter), "=qm" (c)
-                :"ir" (i), "m" (v->counter) : "memory");
+                :"+m" (v->counter), "=qm" (c)
+                :"ir" (i) : "memory");
         return c;
 }
 
@@ -95,8 +95,7 @@ static __inline__ void atomic_inc(atomic_t *v)
 {
         __asm__ __volatile__(
                 LOCK_PREFIX "incl %0"
-                :"=m" (v->counter)
-                :"m" (v->counter));
+                :"+m" (v->counter));
 }
 
 /**
@@ -109,8 +108,7 @@ static __inline__ void atomic_dec(atomic_t *v)
 {
         __asm__ __volatile__(
                 LOCK_PREFIX "decl %0"
-                :"=m" (v->counter)
-                :"m" (v->counter));
+                :"+m" (v->counter));
 }
 
 /**
@@ -127,8 +125,8 @@ static __inline__ int atomic_dec_and_test(atomic_t *v)
 
         __asm__ __volatile__(
                 LOCK_PREFIX "decl %0; sete %1"
-                :"=m" (v->counter), "=qm" (c)
-                :"m" (v->counter) : "memory");
+                :"+m" (v->counter), "=qm" (c)
+                : : "memory");
         return c != 0;
 }
 
@@ -146,8 +144,8 @@ static __inline__ int atomic_inc_and_test(atomic_t *v)
 
         __asm__ __volatile__(
                 LOCK_PREFIX "incl %0; sete %1"
-                :"=m" (v->counter), "=qm" (c)
-                :"m" (v->counter) : "memory");
+                :"+m" (v->counter), "=qm" (c)
+                : : "memory");
         return c != 0;
 }
 
@@ -166,8 +164,8 @@ static __inline__ int atomic_add_negative(int i, atomic_t *v)
 
         __asm__ __volatile__(
                 LOCK_PREFIX "addl %2,%0; sets %1"
-                :"=m" (v->counter), "=qm" (c)
-                :"ir" (i), "m" (v->counter) : "memory");
+                :"+m" (v->counter), "=qm" (c)
+                :"ir" (i) : "memory");
         return c;
 }
 
diff --git a/include/asm-i386/futex.h b/include/asm-i386/futex.h
index 7b8ceefd010f..946d97cfea23 100644
--- a/include/asm-i386/futex.h
+++ b/include/asm-i386/futex.h
@@ -20,8 +20,8 @@
         .align  8\n\
         .long   1b,3b\n\
         .previous"                                              \
-        : "=r" (oldval), "=r" (ret), "=m" (*uaddr)              \
-        : "i" (-EFAULT), "m" (*uaddr), "0" (oparg), "1" (0))
+        : "=r" (oldval), "=r" (ret), "+m" (*uaddr)              \
+        : "i" (-EFAULT), "0" (oparg), "1" (0))
 
 #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
   __asm__ __volatile (                                          \
@@ -38,9 +38,9 @@
         .align  8\n\
         .long   1b,4b,2b,4b\n\
         .previous"                                              \
-        : "=&a" (oldval), "=&r" (ret), "=m" (*uaddr),           \
+        : "=&a" (oldval), "=&r" (ret), "+m" (*uaddr),           \
           "=&r" (tem)                                           \
-        : "r" (oparg), "i" (-EFAULT), "m" (*uaddr), "1" (0))
+        : "r" (oparg), "i" (-EFAULT), "1" (0))
 
 static inline int
 futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
@@ -123,7 +123,7 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
                 "       .long   1b,3b                           \n"
                 "       .previous                               \n"
 
-                : "=a" (oldval), "=m" (*uaddr)
+                : "=a" (oldval), "+m" (*uaddr)
                 : "i" (-EFAULT), "r" (newval), "0" (oldval)
                 : "memory"
         );
diff --git a/include/asm-i386/local.h b/include/asm-i386/local.h
index 3b4998c51d08..12060e22f7e2 100644
--- a/include/asm-i386/local.h
+++ b/include/asm-i386/local.h
@@ -17,32 +17,30 @@ static __inline__ void local_inc(local_t *v)
 {
         __asm__ __volatile__(
                 "incl %0"
-                :"=m" (v->counter)
-                :"m" (v->counter));
+                :"+m" (v->counter));
 }
 
 static __inline__ void local_dec(local_t *v)
 {
         __asm__ __volatile__(
                 "decl %0"
-                :"=m" (v->counter)
-                :"m" (v->counter));
+                :"+m" (v->counter));
 }
 
 static __inline__ void local_add(long i, local_t *v)
 {
         __asm__ __volatile__(
                 "addl %1,%0"
-                :"=m" (v->counter)
-                :"ir" (i), "m" (v->counter));
+                :"+m" (v->counter)
+                :"ir" (i));
 }
 
 static __inline__ void local_sub(long i, local_t *v)
 {
         __asm__ __volatile__(
                 "subl %1,%0"
-                :"=m" (v->counter)
-                :"ir" (i), "m" (v->counter));
+                :"+m" (v->counter)
+                :"ir" (i));
 }
 
 /* On x86, these are no better than the atomic variants. */
diff --git a/include/asm-i386/posix_types.h b/include/asm-i386/posix_types.h
index 4e47ed059ad6..133e31e7dfde 100644
--- a/include/asm-i386/posix_types.h
+++ b/include/asm-i386/posix_types.h
@@ -51,12 +51,12 @@ typedef struct {
 #undef  __FD_SET
 #define __FD_SET(fd,fdsetp) \
                 __asm__ __volatile__("btsl %1,%0": \
-                        "=m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))
+                        "+m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))
 
 #undef  __FD_CLR
 #define __FD_CLR(fd,fdsetp) \
                 __asm__ __volatile__("btrl %1,%0": \
-                        "=m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))
+                        "+m" (*(__kernel_fd_set *) (fdsetp)):"r" ((int) (fd)))
 
 #undef  __FD_ISSET
 #define __FD_ISSET(fd,fdsetp) (__extension__ ({ \
diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h
index 94f00195d543..96b0bef2ea56 100644
--- a/include/asm-i386/rwlock.h
+++ b/include/asm-i386/rwlock.h
@@ -37,7 +37,7 @@
                         "popl %%eax\n\t" \
                         "1:\n", \
                         "subl $1,%0\n\t", \
-                        "=m" (*(volatile int *)rw) : : "memory")
+                        "+m" (*(volatile int *)rw) : : "memory")
 
 #define __build_read_lock(rw, helper)   do { \
                                                 if (__builtin_constant_p(rw)) \
@@ -63,7 +63,7 @@
                         "popl %%eax\n\t" \
                         "1:\n", \
                         "subl $" RW_LOCK_BIAS_STR ",%0\n\t", \
-                        "=m" (*(volatile int *)rw) : : "memory")
+                        "+m" (*(volatile int *)rw) : : "memory")
 
 #define __build_write_lock(rw, helper)  do { \
                                                 if (__builtin_constant_p(rw)) \
diff --git a/include/asm-i386/rwsem.h b/include/asm-i386/rwsem.h
index 2f07601562e7..43113f5608eb 100644
--- a/include/asm-i386/rwsem.h
+++ b/include/asm-i386/rwsem.h
@@ -111,8 +111,8 @@ LOCK_PREFIX	"  incl      (%%eax)\n\t" /* adds 0x00000001, returns the old value
                 "  jmp       1b\n"
                 LOCK_SECTION_END
                 "# ending down_read\n\t"
-                : "=m"(sem->count)
-                : "a"(sem), "m"(sem->count)
+                : "+m" (sem->count)
+                : "a" (sem)
                 : "memory", "cc");
 }
 
@@ -133,8 +133,8 @@ LOCK_PREFIX	"  cmpxchgl  %2,%0\n\t"
                 "  jnz       1b\n\t"
                 "2:\n\t"
                 "# ending __down_read_trylock\n\t"
-                : "+m"(sem->count), "=&a"(result), "=&r"(tmp)
-                : "i"(RWSEM_ACTIVE_READ_BIAS)
+                : "+m" (sem->count), "=&a" (result), "=&r" (tmp)
+                : "i" (RWSEM_ACTIVE_READ_BIAS)
                 : "memory", "cc");
         return result>=0 ? 1 : 0;
 }
@@ -161,8 +161,8 @@ LOCK_PREFIX	"  xadd      %%edx,(%%eax)\n\t" /* subtract 0x0000ffff, returns the
                 "  jmp       1b\n"
                 LOCK_SECTION_END
                 "# ending down_write"
-                : "=m"(sem->count), "=d"(tmp)
-                : "a"(sem), "1"(tmp), "m"(sem->count)
+                : "+m" (sem->count), "=d" (tmp)
+                : "a" (sem), "1" (tmp)
                 : "memory", "cc");
 }
 
@@ -205,8 +205,8 @@ LOCK_PREFIX	"  xadd      %%edx,(%%eax)\n\t" /* subtracts 1, returns the old valu
                 "  jmp       1b\n"
                 LOCK_SECTION_END
                 "# ending __up_read\n"
-                : "=m"(sem->count), "=d"(tmp)
-                : "a"(sem), "1"(tmp), "m"(sem->count)
+                : "+m" (sem->count), "=d" (tmp)
+                : "a" (sem), "1" (tmp)
                 : "memory", "cc");
 }
 
@@ -231,8 +231,8 @@ LOCK_PREFIX	"  xaddl     %%edx,(%%eax)\n\t" /* tries to transition 0xffff0001 ->
                 "  jmp       1b\n"
                 LOCK_SECTION_END
                 "# ending __up_write\n"
-                : "=m"(sem->count)
-                : "a"(sem), "i"(-RWSEM_ACTIVE_WRITE_BIAS), "m"(sem->count)
+                : "+m" (sem->count)
+                : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS)
                 : "memory", "cc", "edx");
 }
 
@@ -256,8 +256,8 @@ LOCK_PREFIX	"  addl      %2,(%%eax)\n\t" /* transitions 0xZZZZ0001 -> 0xYYYY0001
                 "  jmp       1b\n"
                 LOCK_SECTION_END
                 "# ending __downgrade_write\n"
-                : "=m"(sem->count)
-                : "a"(sem), "i"(-RWSEM_WAITING_BIAS), "m"(sem->count)
+                : "+m" (sem->count)
+                : "a" (sem), "i" (-RWSEM_WAITING_BIAS)
                 : "memory", "cc");
 }
 
@@ -268,8 +268,8 @@ static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
 {
         __asm__ __volatile__(
 LOCK_PREFIX     "addl %1,%0"
-                : "=m"(sem->count)
-                : "ir"(delta), "m"(sem->count));
+                : "+m" (sem->count)
+                : "ir" (delta));
 }
 
 /*
@@ -280,10 +280,9 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
         int tmp = delta;
 
         __asm__ __volatile__(
-LOCK_PREFIX     "xadd %0,(%2)"
-                : "+r"(tmp), "=m"(sem->count)
-                : "r"(sem), "m"(sem->count)
-                : "memory");
+LOCK_PREFIX     "xadd %0,%1"
+                : "+r" (tmp), "+m" (sem->count)
+                : : "memory");
 
         return tmp+delta;
 }
diff --git a/include/asm-i386/semaphore.h b/include/asm-i386/semaphore.h
index f7a0f310c524..d51e800acf29 100644
--- a/include/asm-i386/semaphore.h
+++ b/include/asm-i386/semaphore.h
@@ -107,7 +107,7 @@ static inline void down(struct semaphore * sem)
                 "call __down_failed\n\t"
                 "jmp 1b\n"
                 LOCK_SECTION_END
-                :"=m" (sem->count)
+                :"+m" (sem->count)
                 :
                 :"memory","ax");
 }
@@ -132,7 +132,7 @@ static inline int down_interruptible(struct semaphore * sem)
                 "call __down_failed_interruptible\n\t"
                 "jmp 1b\n"
                 LOCK_SECTION_END
-                :"=a" (result), "=m" (sem->count)
+                :"=a" (result), "+m" (sem->count)
                 :
                 :"memory");
         return result;
@@ -157,7 +157,7 @@ static inline int down_trylock(struct semaphore * sem)
                 "call __down_failed_trylock\n\t"
                 "jmp 1b\n"
                 LOCK_SECTION_END
-                :"=a" (result), "=m" (sem->count)
+                :"=a" (result), "+m" (sem->count)
                 :
                 :"memory");
         return result;
@@ -182,7 +182,7 @@ static inline void up(struct semaphore * sem)
                 "jmp 1b\n"
                 LOCK_SECTION_END
                 ".subsection 0\n"
-                :"=m" (sem->count)
+                :"+m" (sem->count)
                 :
                 :"memory","ax");
 }
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h
index 87c40f830653..d816c62a7a1d 100644
--- a/include/asm-i386/spinlock.h
+++ b/include/asm-i386/spinlock.h
@@ -65,7 +65,7 @@ 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");
+                "+m" (lock->slock) : : "memory");
 }
 
 /*
@@ -79,7 +79,7 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long fla
         alternative_smp(
                 __raw_spin_lock_string_flags,
                 __raw_spin_lock_string_up,
-                "=m" (lock->slock) : "r" (flags) : "memory");
+                "+m" (lock->slock) : "r" (flags) : "memory");
 }
 #endif
 
@@ -88,7 +88,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
         char oldval;
         __asm__ __volatile__(
                 "xchgb %b0,%1"
-                :"=q" (oldval), "=m" (lock->slock)
+                :"=q" (oldval), "+m" (lock->slock)
                 :"0" (0) : "memory");
         return oldval > 0;
 }
@@ -104,7 +104,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 
 #define __raw_spin_unlock_string \
         "movb $1,%0" \
-                :"=m" (lock->slock) : : "memory"
+                :"+m" (lock->slock) : : "memory"
 
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lock)
@@ -118,7 +118,7 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 
 #define __raw_spin_unlock_string \
         "xchgb %b0, %1" \
-                :"=q" (oldval), "=m" (lock->slock) \
+                :"=q" (oldval), "+m" (lock->slock) \
                 :"0" (oldval) : "memory"
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lock)
@@ -199,13 +199,13 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock)
 
 static inline void __raw_read_unlock(raw_rwlock_t *rw)
 {
-        asm volatile(LOCK_PREFIX "incl %0" :"=m" (rw->lock) : : "memory");
+        asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory");
 }
 
 static inline void __raw_write_unlock(raw_rwlock_t *rw)
 {
         asm volatile(LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ", %0"
-                                 : "=m" (rw->lock) : : "memory");
+                                 : "+m" (rw->lock) : : "memory");
 }
 
 #endif /* __ASM_SPINLOCK_H */
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index db398d88b1d9..49928eb33f8b 100644
--- a/include/asm-i386/system.h
+++ b/include/asm-i386/system.h
@@ -82,10 +82,6 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
 #define savesegment(seg, value) \
         asm volatile("mov %%" #seg ",%0":"=rm" (value))
 
-/*
- * Clear and set 'TS' bit respectively
- */
-#define clts() __asm__ __volatile__ ("clts")
 #define read_cr0() ({ \
         unsigned int __dummy; \
         __asm__ __volatile__( \
@@ -94,7 +90,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
         __dummy; \
 })
 #define write_cr0(x) \
-        __asm__ __volatile__("movl %0,%%cr0": :"r" (x));
+        __asm__ __volatile__("movl %0,%%cr0": :"r" (x))
 
 #define read_cr2() ({ \
         unsigned int __dummy; \
@@ -104,7 +100,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
         __dummy; \
 })
 #define write_cr2(x) \
-        __asm__ __volatile__("movl %0,%%cr2": :"r" (x));
+        __asm__ __volatile__("movl %0,%%cr2": :"r" (x))
 
 #define read_cr3() ({ \
         unsigned int __dummy; \
@@ -114,7 +110,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
         __dummy; \
 })
 #define write_cr3(x) \
-        __asm__ __volatile__("movl %0,%%cr3": :"r" (x));
+        __asm__ __volatile__("movl %0,%%cr3": :"r" (x))
 
 #define read_cr4() ({ \
         unsigned int __dummy; \
@@ -123,7 +119,6 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
                 :"=r" (__dummy)); \
         __dummy; \
 })
-
 #define read_cr4_safe() ({                            \
         unsigned int __dummy;                         \
         /* This could fault if %cr4 does not exist */ \
@@ -135,15 +130,19 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \
                 : "=r" (__dummy): "0" (0));           \
         __dummy;                                      \
 })
-
 #define write_cr4(x) \
-        __asm__ __volatile__("movl %0,%%cr4": :"r" (x));
+        __asm__ __volatile__("movl %0,%%cr4": :"r" (x))
+
+/*
+ * Clear and set 'TS' bit respectively
+ */
+#define clts() __asm__ __volatile__ ("clts")
 #define stts() write_cr0(8 | read_cr0())
 
 #endif  /* __KERNEL__ */
 
 #define wbinvd() \
-        __asm__ __volatile__ ("wbinvd": : :"memory");
+        __asm__ __volatile__ ("wbinvd": : :"memory")
 
 static inline unsigned long get_limit(unsigned long segment)
 {
@@ -454,8 +453,6 @@ static inline unsigned long long __cmpxchg64(volatile void *ptr, unsigned long l
 #define set_mb(var, value) do { var = value; barrier(); } while (0)
 #endif
 
-#define set_wmb(var, value) do { var = value; wmb(); } while (0)
-
 #include <linux/irqflags.h>
 
 /*
diff --git a/include/asm-i386/thread_info.h b/include/asm-i386/thread_info.h
index 2833fa2c0dd0..54d6d7aea938 100644
--- a/include/asm-i386/thread_info.h
+++ b/include/asm-i386/thread_info.h
@@ -140,6 +140,8 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SECCOMP             8       /* secure computing */
 #define TIF_RESTORE_SIGMASK     9       /* restore signal mask in do_signal() */
 #define TIF_MEMDIE              16
+#define TIF_DEBUG               17      /* uses debug registers */
+#define TIF_IO_BITMAP           18      /* uses I/O bitmap */
 
 #define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
@@ -151,6 +153,8 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_AUDIT      (1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP            (1<<TIF_SECCOMP)
 #define _TIF_RESTORE_SIGMASK    (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_DEBUG              (1<<TIF_DEBUG)
+#define _TIF_IO_BITMAP          (1<<TIF_IO_BITMAP)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
@@ -159,6 +163,9 @@ static inline struct thread_info *current_thread_info(void)
 /* work to do on any return to u-space */
 #define _TIF_ALLWORK_MASK       (0x0000FFFF & ~_TIF_SECCOMP)
 
+/* flags to check in __switch_to() */
+#define _TIF_WORK_CTXSW (_TIF_DEBUG|_TIF_IO_BITMAP)
+
 /*
  * Thread-synchronous status.
  *