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Commit aac72277 authored Jan 26, 2011 by Thomas Gleixner

rwsem: Move duplicate function prototypes to linux/rwsem.h



All architecture specific rwsem headers carry the same function
prototypes. Just x86 adds asmregparm, which is an empty define on all
other architectures. S390 has a stale rwsem_downgrade_write()
prototype.

Remove the duplicates and add the prototypes to linux/rwsem.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Henderson <rth@twiddle.net>
Acked-by: Tony Luck <tony.luck@intel.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: David Miller <davem@davemloft.net>
Cc: Chris Zankel <chris@zankel.net>
LKML-Reference: <20110126195833.970840140@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent 41e5887f

arch/alpha/include/asm/rwsem.h

+0 −5

Original line number	Diff line number	Diff line
		@@ -14,11 +14,6 @@

		#include <linux/compiler.h>

		extern struct rw_semaphore rwsem_down_read_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_down_write_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_wake(struct rw_semaphore );
		extern struct rw_semaphore rwsem_downgrade_wake(struct rw_semaphore sem);

		#define RWSEM_UNLOCKED_VALUE 0x0000000000000000L
		#define RWSEM_ACTIVE_BIAS 0x0000000000000001L
		#define RWSEM_ACTIVE_MASK 0x00000000ffffffffL

arch/ia64/include/asm/rwsem.h

+0 −5

Original line number	Diff line number	Diff line
		@@ -34,11 +34,6 @@
		#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
		#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)

		extern struct rw_semaphore rwsem_down_read_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_down_write_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_wake(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_downgrade_wake(struct rw_semaphore sem);

		/*
		* lock for reading
		*/

arch/powerpc/include/asm/rwsem.h

+0 −5

Original line number	Diff line number	Diff line
		@@ -28,11 +28,6 @@
		#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
		#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)

		extern struct rw_semaphore rwsem_down_read_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_down_write_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_wake(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_downgrade_wake(struct rw_semaphore sem);

		/*
		* lock for reading
		*/

arch/s390/include/asm/rwsem.h

+0 −6

Original line number	Diff line number	Diff line
		@@ -43,12 +43,6 @@

		#ifdef __KERNEL__

		extern struct rw_semaphore rwsem_down_read_failed(struct rw_semaphore );
		extern struct rw_semaphore rwsem_down_write_failed(struct rw_semaphore );
		extern struct rw_semaphore rwsem_wake(struct rw_semaphore );
		extern struct rw_semaphore rwsem_downgrade_wake(struct rw_semaphore );
		extern struct rw_semaphore rwsem_downgrade_write(struct rw_semaphore );

		#ifndef __s390x__
		#define RWSEM_UNLOCKED_VALUE 0x00000000
		#define RWSEM_ACTIVE_BIAS 0x00000001

arch/sh/include/asm/rwsem.h

+0 −5

Original line number	Diff line number	Diff line
		@@ -19,11 +19,6 @@
		#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
		#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)

		extern struct rw_semaphore rwsem_down_read_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_down_write_failed(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_wake(struct rw_semaphore sem);
		extern struct rw_semaphore rwsem_downgrade_wake(struct rw_semaphore sem);

		/*
		* lock for reading
		*/