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author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-09-05 03:20:59 (GMT) |
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committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-10-23 00:24:38 (GMT) |
commit | f1e89c86fdd0f5e59f6768146c86437934202033 (patch) | |
tree | c5ba8766a3a029f0c10d6d0d09a57a7e28b7a51b /fs/nilfs2/cpfile.c | |
parent | c1c1d7092072093ad960db2f6c08f06705c57fa4 (diff) | |
download | linux-fsl-qoriq-f1e89c86fdd0f5e59f6768146c86437934202033.tar.xz |
nilfs2: use iget for all metadata files
This makes use of iget5_locked to allocate or get inode for metadata
files to stop using own inode allocator.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/cpfile.c')
-rw-r--r-- | fs/nilfs2/cpfile.c | 49 |
1 files changed, 31 insertions, 18 deletions
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c index 1873781..03de1da 100644 --- a/fs/nilfs2/cpfile.c +++ b/fs/nilfs2/cpfile.c @@ -933,27 +933,40 @@ int nilfs_cpfile_get_stat(struct inode *cpfile, struct nilfs_cpstat *cpstat) } /** - * nilfs_cpfile_read - read cpfile inode - * @cpfile: cpfile inode - * @raw_inode: on-disk cpfile inode - */ -int nilfs_cpfile_read(struct inode *cpfile, struct nilfs_inode *raw_inode) -{ - return nilfs_read_inode_common(cpfile, raw_inode); -} - -/** - * nilfs_cpfile_new - create cpfile - * @nilfs: nilfs object + * nilfs_cpfile_read - read or get cpfile inode + * @sb: super block instance * @cpsize: size of a checkpoint entry + * @raw_inode: on-disk cpfile inode + * @inodep: buffer to store the inode */ -struct inode *nilfs_cpfile_new(struct the_nilfs *nilfs, size_t cpsize) +int nilfs_cpfile_read(struct super_block *sb, size_t cpsize, + struct nilfs_inode *raw_inode, struct inode **inodep) { struct inode *cpfile; + int err; - cpfile = nilfs_mdt_new(nilfs, NULL, NILFS_CPFILE_INO, 0); - if (cpfile) - nilfs_mdt_set_entry_size(cpfile, cpsize, - sizeof(struct nilfs_cpfile_header)); - return cpfile; + cpfile = nilfs_iget_locked(sb, NULL, NILFS_CPFILE_INO); + if (unlikely(!cpfile)) + return -ENOMEM; + if (!(cpfile->i_state & I_NEW)) + goto out; + + err = nilfs_mdt_init(cpfile, NILFS_MDT_GFP, 0); + if (err) + goto failed; + + nilfs_mdt_set_entry_size(cpfile, cpsize, + sizeof(struct nilfs_cpfile_header)); + + err = nilfs_read_inode_common(cpfile, raw_inode); + if (err) + goto failed; + + unlock_new_inode(cpfile); + out: + *inodep = cpfile; + return 0; + failed: + iget_failed(cpfile); + return err; } |