Quelle  ext2-atomic.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
#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_ */