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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-07-21 20:22:20 +0200 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-07-23 03:02:16 +0200 |
| commit | c5ca48aabe8b11674bf1102abe52d17ecc053f9c (patch) | |
| tree | 18c7647b42981d457c59cd4a842ca342a239770d /fs/nilfs2/nilfs.h | |
| parent | nilfs2: add feature set fields to super block (diff) | |
| download | linux-c5ca48aabe8b11674bf1102abe52d17ecc053f9c.tar.xz linux-c5ca48aabe8b11674bf1102abe52d17ecc053f9c.zip | |
nilfs2: reject incompatible filesystem
This forces nilfs to check compatibility of feature flags so as to
reject a filesystem with unknown features when it mounts or remounts
the filesystem.
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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h index cfedc48d78d9..0842d775b3e0 100644 --- a/fs/nilfs2/nilfs.h +++ b/fs/nilfs2/nilfs.h @@ -275,6 +275,8 @@ extern struct nilfs_super_block * nilfs_read_super_block(struct super_block *, u64, int, struct buffer_head **); extern int nilfs_store_magic_and_option(struct super_block *, struct nilfs_super_block *, char *); +extern int nilfs_check_feature_compatibility(struct super_block *, + struct nilfs_super_block *); 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 *, |