diff options
author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-12 14:56:43 (GMT) |
---|---|---|
committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-20 01:05:48 (GMT) |
commit | 79739565e15f2adbc482207a0800fc127c84d1a0 (patch) | |
tree | 10d61f5a31e4de5c90a6c9c10f0f0bc8e68d1550 /fs/nilfs2/dat.c | |
parent | 5731e191f254af9135ad843119804a500528ecf3 (diff) | |
download | linux-fsl-qoriq-79739565e15f2adbc482207a0800fc127c84d1a0.tar.xz |
nilfs2: separate constructor of metadata files
This will displace nilfs_mdt_new() constructor with individual
metadata file constructors like nilfs_dat_new(), new_sufile_new(),
nilfs_cpfile_new(), and nilfs_ifile_new().
This makes it possible for each metadata file to have own
intialization code.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/dat.c')
-rw-r--r-- | fs/nilfs2/dat.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c index 1ff8e15..239a422 100644 --- a/fs/nilfs2/dat.c +++ b/fs/nilfs2/dat.c @@ -425,3 +425,26 @@ ssize_t nilfs_dat_get_vinfo(struct inode *dat, void *buf, unsigned visz, return nvi; } + +/** + * nilfs_dat_new - create dat file + * @nilfs: nilfs object + * @entry_size: size of a dat entry + */ +struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size) +{ + static struct lock_class_key dat_lock_key; + struct inode *dat; + int err; + + dat = nilfs_mdt_new(nilfs, NULL, NILFS_DAT_INO, 0); + if (dat) { + err = nilfs_palloc_init_blockgroup(dat, entry_size); + if (unlikely(err)) { + nilfs_mdt_destroy(dat); + return NULL; + } + lockdep_set_class(&NILFS_MDT(dat)->mi_sem, &dat_lock_key); + } + return dat; +} |