diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /include/asm-generic/bitops/ext2-atomic.h | |
Diffstat (limited to 'include/asm-generic/bitops/ext2-atomic.h')
| -rw-r--r-- | include/asm-generic/bitops/ext2-atomic.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/ext2-atomic.h b/include/asm-generic/bitops/ext2-atomic.h new file mode 100644 index 00000000..87f0f109 --- /dev/null +++ b/include/asm-generic/bitops/ext2-atomic.h @@ -0,0 +1,26 @@ +#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_ */ |