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

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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>
This commit is contained in:
Thomas Gleixner
2011-01-26 20:06:06 +00:00
parent 41e5887fa3
commit aac72277fd
9 changed files with 5 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
arch/x86/include/asm/rwsem.h
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@@ -39,15 +39,6 @@
#ifdef __KERNEL__
#include <asm/asm.h>
extern asmregparm struct rw_semaphore *
rwsem_down_read_failed(struct rw_semaphore *sem);
extern asmregparm struct rw_semaphore *
rwsem_down_write_failed(struct rw_semaphore *sem);
extern asmregparm struct rw_semaphore *
rwsem_wake(struct rw_semaphore *);
extern asmregparm struct rw_semaphore *
rwsem_downgrade_wake(struct rw_semaphore *sem);
/*
* The bias values and the counter type limits the number of
* potential readers/writers to 32767 for 32 bits and 2147483647