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From: Brent Cook <bcook@bpointsys.com>
To: linuxppc-embedded@ozlabs.org
Subject: [PATCH] Export PowerPC atomic operations to userspace
Date: Mon, 15 May 2006 11:54:52 -0500
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The atomic operations in asm/atomic.h are really useful from userspace too. 
Other architectures (i386, x86_64, mips) export these to userspace, but the 
powerpc versions are guarded by __KERNEL__ for some reason. Can we remove 
these if there is no good reason to guard them?

Signed-off-by: Brent Cook <bcook@bpointsys.com>

Index: linux-2.6-bps/include/asm-powerpc/atomic.h
===================================================================
--- linux-2.6-bps/include/asm-powerpc/atomic.h  (revision 77)
+++ linux-2.6-bps/include/asm-powerpc/atomic.h  (working copy)
@@ -7,7 +7,6 @@

 typedef struct { volatile int counter; } atomic_t;

-#ifdef __KERNEL__
 #include <linux/compiler.h>
 #include <asm/synch.h>
 #include <asm/asm-compat.h>
@@ -414,5 +413,4 @@
 #endif /* __powerpc64__ */

 #include <asm-generic/atomic.h>
-#endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_ATOMIC_H_ */