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| author | Gu Zheng <guz.fnst@cn.fujitsu.com> | 2014-10-20 17:45:50 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-11-03 16:07:36 -0800 |
| commit | c6ac4c0ec416e77cab09cac6cee2d100fbd7fc82 (patch) | |
| tree | 24dd196ef82d5a87dc683640fb5366a1d27e19ba /fs/f2fs/f2fs.h | |
| parent | fa528722d06ecbee9d918b9eec58c5d4c2978839 (diff) | |
| download | linux-c6ac4c0ec416e77cab09cac6cee2d100fbd7fc82.tar.bz2 | |
f2fs: introduce f2fs_change_bit to simplify the change bit logic
Introduce f2fs_change_bit to simplify the change bit logic in
function set_to_next_nat{sit}.
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 3608c13aa7a2..60045a24f0d5 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1073,6 +1073,15 @@ static inline int f2fs_clear_bit(unsigned int nr, char *addr) return ret; } +static inline void f2fs_change_bit(unsigned int nr, char *addr) +{ + int mask; + + addr += (nr >> 3); + mask = 1 << (7 - (nr & 0x07)); + *addr ^= mask; +} + /* used for f2fs_inode_info->flags */ enum { FI_NEW_INODE, /* indicate newly allocated inode */ |