kernel/include/asm-generic/bitops/ext2-atomic.h

   1 #ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
   2 #define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
   3
   4 /*
   5  * Spinlock based version of ext2 atomic bitops
   6  */
   7
   8 #define ext2_set_bit_atomic(lock, nr, addr)             \
   9         ({                                              \
  10                 int ret;                                \
  11                 spin_lock(lock);                        \
  12                 ret = __test_and_set_bit_le(nr, addr);  \
  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);                        \
  21                 ret = __test_and_clear_bit_le(nr, addr);        \
  22                 spin_unlock(lock);                      \
  23                 ret;                                    \
  24         })
  25
  26 #endif /* _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ */