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Merge up to 2.6.25-rc3
Merge of 2.6.x-xfs-melb:linux:30555a by kenmcd.

#ifndef __LINUX_COMPILER_H
#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
#endif

/* These definitions are for GCC v3.x.  */
#include <linux/compiler-gcc.h>

#if __GNUC_MINOR__ >= 3
# define __used			__attribute__((__used__))
#else
# define __used			__attribute__((__unused__))
#endif

#if __GNUC_MINOR__ >= 4
#define __must_check		__attribute__((warn_unused_result))
#endif

/*
 * A trick to suppress uninitialized variable warning without generating any
 * code
 */
#define uninitialized_var(x) x = x

#define __always_inline		inline __attribute__((always_inline))