提交 b62e180c 编写于 作者: H Heiko Carstens 提交者: Ingo Molnar

locking: Inline spinlock code for all locking variants on s390

Speeds up several benchmarks in a measurable way, so inline
all spin-lock variants by default.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: NPeter 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: <20090831124419.319518405@de.ibm.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
上级 bb7bed08
......@@ -191,4 +191,33 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
#define _raw_read_relax(lock) cpu_relax()
#define _raw_write_relax(lock) cpu_relax()
#define __always_inline__spin_lock
#define __always_inline__read_lock
#define __always_inline__write_lock
#define __always_inline__spin_lock_bh
#define __always_inline__read_lock_bh
#define __always_inline__write_lock_bh
#define __always_inline__spin_lock_irq
#define __always_inline__read_lock_irq
#define __always_inline__write_lock_irq
#define __always_inline__spin_lock_irqsave
#define __always_inline__read_lock_irqsave
#define __always_inline__write_lock_irqsave
#define __always_inline__spin_trylock
#define __always_inline__read_trylock
#define __always_inline__write_trylock
#define __always_inline__spin_trylock_bh
#define __always_inline__spin_unlock
#define __always_inline__read_unlock
#define __always_inline__write_unlock
#define __always_inline__spin_unlock_bh
#define __always_inline__read_unlock_bh
#define __always_inline__write_unlock_bh
#define __always_inline__spin_unlock_irq
#define __always_inline__read_unlock_irq
#define __always_inline__write_unlock_irq
#define __always_inline__spin_unlock_irqrestore
#define __always_inline__read_unlock_irqrestore
#define __always_inline__write_unlock_irqrestore
#endif /* __ASM_SPINLOCK_H */
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册