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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-19 19:58:46 +0900 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-20 10:05:52 +0900 |
| commit | a057d2c01161444c48b12a60351ae6c7135f6e61 (patch) | |
| tree | 066316a4e9a9d1d2979873c31e7855eb9c093c49 /fs/nilfs2/the_nilfs.h | |
| parent | f50a4c8149cc135921a8a0476bff8e622f59aef9 (diff) | |
| download | blackbird-op-linux-a057d2c01161444c48b12a60351ae6c7135f6e61.tar.gz blackbird-op-linux-a057d2c01161444c48b12a60351ae6c7135f6e61.zip | |
nilfs2: add helper to get if volume is in a valid state
This adds a helper function, nilfs_valid_fs() which returns if nilfs
is in a valid state or not.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/the_nilfs.h')
| -rw-r--r-- | fs/nilfs2/the_nilfs.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h index 20abd55881e0..589786e33464 100644 --- a/fs/nilfs2/the_nilfs.h +++ b/fs/nilfs2/the_nilfs.h @@ -258,6 +258,16 @@ static inline void nilfs_put_sbinfo(struct nilfs_sb_info *sbi) kfree(sbi); } +static inline int nilfs_valid_fs(struct the_nilfs *nilfs) +{ + unsigned valid_fs; + + down_read(&nilfs->ns_sem); + valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS); + up_read(&nilfs->ns_sem); + return valid_fs; +} + static inline void nilfs_get_segment_range(struct the_nilfs *nilfs, __u64 segnum, sector_t *seg_start, sector_t *seg_end) |
