[PATCH 12/12] generic minix_{test,set,test_and_clear,test,find_first_zero}_bit()

[mita@miraclelinux.com (Akinobu Mita)]

This patch introduces the C-language equivalents of the functions below:

HAVE_ARCH_MINIX_BITOPS is defined when the architecture has its own
version of these functions.

int minix_test_and_set_bit(int nr, volatile unsigned long *addr);
int minix_set_bit(int nr, volatile unsigned long *addr);
int minix_test_and_clear_bit(int nr, volatile unsigned long *addr);
int minix_test_bit(int nr, const volatile unsigned long *addr);
unsigned long minix_find_first_zero_bit(const unsigned long *addr,
                                        unsigned long size);

This code largely copied from:
include/asm-sparc/bitops.h

Index: 2.6-git/include/asm-generic/bitops.h
===================================================================
--- 2.6-git.orig/include/asm-generic/bitops.h	2006-01-25 19:14:12.000000000 +0900
+++ 2.6-git/include/asm-generic/bitops.h	2006-01-25 19:14:12.000000000 +0900
@@ -667,6 +667,21 @@
 
 #endif /* HAVE_ARCH_EXT2_ATOMIC_BITOPS */
 
+#ifndef HAVE_ARCH_MINIX_BITOPS
+
+#define minix_test_and_set_bit(nr,addr)	\
+	__test_and_set_bit((nr),(unsigned long *)(addr))
+#define minix_set_bit(nr,addr)		\
+	__set_bit((nr),(unsigned long *)(addr))
+#define minix_test_and_clear_bit(nr,addr) \
+	__test_and_clear_bit((nr),(unsigned long *)(addr))
+#define minix_test_bit(nr,addr)		\
+	test_bit((nr),(unsigned long *)(addr))
+#define minix_find_first_zero_bit(addr,size) \
+	find_first_zero_bit((unsigned long *)(addr),(size))
+
+#endif /* HAVE_ARCH_MINIX_BITOPS */
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_GENERIC_BITOPS_H */
-
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