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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2011-04-30 11:56:12 +0200 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2011-05-10 15:21:45 +0200 |
| commit | 56eb55388580ebd51f3bbd9af40ebb56849356af (patch) | |
| tree | 7d1ed80fa05150c40a75d5755981c8d949ae634b /fs/nilfs2/inode.c | |
| parent | nilfs2: super root size should change depending on inode size (diff) | |
| download | linux-56eb55388580ebd51f3bbd9af40ebb56849356af.tar.xz linux-56eb55388580ebd51f3bbd9af40ebb56849356af.zip | |
nilfs2: zero fill unused portion of super root block
The super root block is newly-allocated each time it is written back
to disk, so unused portion of the block should be cleared.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/inode.c')
| -rw-r--r-- | fs/nilfs2/inode.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 2cc8c087b2d5..699170e0f308 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -596,6 +596,16 @@ void nilfs_write_inode_common(struct inode *inode, raw_inode->i_flags = cpu_to_le32(ii->i_flags); raw_inode->i_generation = cpu_to_le32(inode->i_generation); + if (NILFS_ROOT_METADATA_FILE(inode->i_ino)) { + struct the_nilfs *nilfs = inode->i_sb->s_fs_info; + + /* zero-fill unused portion in the case of super root block */ + raw_inode->i_xattr = 0; + raw_inode->i_pad = 0; + memset((void *)raw_inode + sizeof(*raw_inode), 0, + nilfs->ns_inode_size - sizeof(*raw_inode)); + } + if (has_bmap) nilfs_bmap_write(ii->i_bmap, raw_inode); else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) |