930ae745f5
This patch introduces the C-language equivalents of the functions below:
int ext2_set_bit(int nr, volatile unsigned long *addr);
int ext2_clear_bit(int nr, volatile unsigned long *addr);
int ext2_test_bit(int nr, const volatile unsigned long *addr);
unsigned long ext2_find_first_zero_bit(const unsigned long *addr,
unsigned long size);
unsinged long ext2_find_next_zero_bit(const unsigned long *addr,
unsigned long size);
In include/asm-generic/bitops/ext2-non-atomic.h
This code largely copied from:
include/asm-powerpc/bitops.h
include/asm-parisc/bitops.h
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 lines
693 B
C
18 lines
693 B
C
#ifndef _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_
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#define _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_
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#include <asm-generic/bitops/le.h>
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#define ext2_set_bit(nr,addr) \
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generic___test_and_set_le_bit((nr),(unsigned long *)(addr))
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#define ext2_clear_bit(nr,addr) \
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generic___test_and_clear_le_bit((nr),(unsigned long *)(addr))
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#define ext2_test_bit(nr,addr) \
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generic_test_le_bit((nr),(unsigned long *)(addr))
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#define ext2_find_first_zero_bit(addr, size) \
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generic_find_first_zero_le_bit((unsigned long *)(addr), (size))
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#define ext2_find_next_zero_bit(addr, size, off) \
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generic_find_next_zero_le_bit((unsigned long *)(addr), (size), (off))
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#endif /* _ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_ */
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