asm-generic/bitops/ext2-atomic.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
0003 #define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
0004
0005 /*
0006  * Spinlock based version of ext2 atomic bitops
0007  */
0008
0009 #define ext2_set_bit_atomic(lock, nr, addr)     \
0010     ({                      \
0011         int ret;                \
0012         spin_lock(lock);            \
0013         ret = __test_and_set_bit_le(nr, addr);  \
0014         spin_unlock(lock);          \
0015         ret;                    \
0016     })
0017
0018 #define ext2_clear_bit_atomic(lock, nr, addr)       \
0019     ({                      \
0020         int ret;                \
0021         spin_lock(lock);            \
0022         ret = __test_and_clear_bit_le(nr, addr);    \
0023         spin_unlock(lock);          \
0024         ret;                    \
0025     })
0026
0027 #endif /* _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ */