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| author | Jiro SEKIBA <jir@unicus.jp> | 2010-06-28 17:49:32 +0900 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-07-23 10:02:10 +0900 |
| commit | d26493b6f017c0b0063a15bf893411ddae85eee4 (patch) | |
| tree | 994de3e7c0383f0e30e5e9c88c0c5d0261a834bc /fs/nilfs2/nilfs.h | |
| parent | 60f46b7efc1d6b980511c2644cb89903062f6e98 (diff) | |
| download | linux-d26493b6f017c0b0063a15bf893411ddae85eee4.tar.gz linux-d26493b6f017c0b0063a15bf893411ddae85eee4.tar.bz2 linux-d26493b6f017c0b0063a15bf893411ddae85eee4.zip | |
nilfs2: introduce nilfs_prepare_super
This function checks validity of super block pointers.
If first super block is invalid, it will swap the super blocks.
The function should be called before any super block information updates.
Caller must obtain nilfs->ns_sem.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/nilfs.h')
| -rw-r--r-- | fs/nilfs2/nilfs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h index 6718616183b7..462651061b03 100644 --- a/fs/nilfs2/nilfs.h +++ b/fs/nilfs2/nilfs.h @@ -272,6 +272,7 @@ extern int nilfs_store_magic_and_option(struct super_block *, struct nilfs_super_block *, char *); extern void nilfs_set_log_cursor(struct nilfs_super_block *, struct the_nilfs *); +extern struct nilfs_super_block **nilfs_prepare_super(struct nilfs_sb_info *); extern int nilfs_commit_super(struct nilfs_sb_info *, int); extern int nilfs_cleanup_super(struct nilfs_sb_info *); extern int nilfs_attach_checkpoint(struct nilfs_sb_info *, __u64); |