locking, powerpc: Rename __spin_try_lock() and friends

Needed to avoid namespace conflicts when the common code
function bodies of _spin_try_lock() etc. are moved to a header
file where the function name would be __spin_try_lock().

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Horst Hartmann <horsth@linux.vnet.ibm.com>
Cc: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: <linux-arch@vger.kernel.org>
LKML-Reference: <20090831124415.918799705@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index c3b1931..198266c 100644 (file)
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -54,7 +54,7 @@
  * This returns the old value in the lock, so we succeeded
  * in getting the lock if the return value is 0.
  */
-static inline unsigned long __spin_trylock(raw_spinlock_t *lock)
+static inline unsigned long arch_spin_trylock(raw_spinlock_t *lock)
 {
        unsigned long tmp, token;
 
@@ -76,7 +76,7 @@ static inline unsigned long __spin_trylock(raw_spinlock_t *lock)
 static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 {
        CLEAR_IO_SYNC;
-       return __spin_trylock(lock) == 0;
+       return arch_spin_trylock(lock) == 0;
 }
 
 /*
@@ -108,7 +108,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 {
        CLEAR_IO_SYNC;
        while (1) {
-               if (likely(__spin_trylock(lock) == 0))
+               if (likely(arch_spin_trylock(lock) == 0))
                        break;
                do {
                        HMT_low();
@@ -126,7 +126,7 @@ void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
 
        CLEAR_IO_SYNC;
        while (1) {
-               if (likely(__spin_trylock(lock) == 0))
+               if (likely(arch_spin_trylock(lock) == 0))
                        break;
                local_save_flags(flags_dis);
                local_irq_restore(flags);
@@ -181,7 +181,7 @@ extern void __raw_spin_unlock_wait(raw_spinlock_t *lock);
  * This returns the old value in the lock + 1,
  * so we got a read lock if the return value is > 0.
  */
-static inline long __read_trylock(raw_rwlock_t *rw)
+static inline long arch_read_trylock(raw_rwlock_t *rw)
 {
        long tmp;
 
@@ -205,7 +205,7 @@ static inline long __read_trylock(raw_rwlock_t *rw)
  * This returns the old value in the lock,
  * so we got the write lock if the return value is 0.
  */
-static inline long __write_trylock(raw_rwlock_t *rw)
+static inline long arch_write_trylock(raw_rwlock_t *rw)
 {
        long tmp, token;
 
@@ -228,7 +228,7 @@ static inline long __write_trylock(raw_rwlock_t *rw)
 static inline void __raw_read_lock(raw_rwlock_t *rw)
 {
        while (1) {
-               if (likely(__read_trylock(rw) > 0))
+               if (likely(arch_read_trylock(rw) > 0))
                        break;
                do {
                        HMT_low();
@@ -242,7 +242,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
 static inline void __raw_write_lock(raw_rwlock_t *rw)
 {
        while (1) {
-               if (likely(__write_trylock(rw) == 0))
+               if (likely(arch_write_trylock(rw) == 0))
                        break;
                do {
                        HMT_low();
@@ -255,12 +255,12 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
 
 static inline int __raw_read_trylock(raw_rwlock_t *rw)
 {
-       return __read_trylock(rw) > 0;
+       return arch_read_trylock(rw) > 0;
 }
 
 static inline int __raw_write_trylock(raw_rwlock_t *rw)
 {
-       return __write_trylock(rw) == 0;
+       return arch_write_trylock(rw) == 0;
 }
 
 static inline void __raw_read_unlock(raw_rwlock_t *rw)