mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-24 02:18:54 +00:00
765f34fe32
This patch introduces the C-language equivalents of the functions below: int ext2_set_bit_atomic(int nr, volatile unsigned long *addr); int ext2_clear_bit_atomic(int nr, volatile unsigned long *addr); In include/asm-generic/bitops/ext2-atomic.h This code largely copied from: include/asm-sparc/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>
23 lines
529 B
C
23 lines
529 B
C
#ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
|
|
#define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
|
|
|
|
#define ext2_set_bit_atomic(lock, nr, addr) \
|
|
({ \
|
|
int ret; \
|
|
spin_lock(lock); \
|
|
ret = ext2_set_bit((nr), (unsigned long *)(addr)); \
|
|
spin_unlock(lock); \
|
|
ret; \
|
|
})
|
|
|
|
#define ext2_clear_bit_atomic(lock, nr, addr) \
|
|
({ \
|
|
int ret; \
|
|
spin_lock(lock); \
|
|
ret = ext2_clear_bit((nr), (unsigned long *)(addr)); \
|
|
spin_unlock(lock); \
|
|
ret; \
|
|
})
|
|
|
|
#endif /* _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ */
|