[deliverable/linux.git] / include / asm-generic / bitops / ext2-atomic.h

#ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
#define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_

/*
 * Spinlock based version of ext2 atomic bitops
 */

#define ext2_set_bit_atomic(lock, nr, addr)		\
	({						\
		int ret;				\
		spin_lock(lock);			\
		ret = __test_and_set_bit_le(nr, addr);	\
		spin_unlock(lock);			\
		ret;					\
	})

#define ext2_clear_bit_atomic(lock, nr, addr)		\
	({						\
		int ret;				\
		spin_lock(lock);			\
		ret = __test_and_clear_bit_le(nr, addr);	\
		spin_unlock(lock);			\
		ret;					\
	})

#endif /* _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ */
Commit	Line	Data
765f34fe AM	1	#ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
	2	#define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
	3
148817ba AM	4	/*
	5	* Spinlock based version of ext2 atomic bitops
	6	*/
	7
765f34fe AM	8	#define ext2_set_bit_atomic(lock, nr, addr) \
	9	({ \
	10	int ret; \
	11	spin_lock(lock); \
c5653005	12	ret = __test_and_set_bit_le(nr, addr); \
765f34fe AM	13	spin_unlock(lock); \
	14	ret; \
	15	})
	16
	17	#define ext2_clear_bit_atomic(lock, nr, addr) \
	18	({ \
	19	int ret; \
	20	spin_lock(lock); \
c5653005	21	ret = __test_and_clear_bit_le(nr, addr); \
765f34fe AM	22	spin_unlock(lock); \
	23	ret; \
	24	})
	25
	26	#endif /* _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ */