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author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-09-05 05:20:59 +0200 |
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committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-10-23 02:24:38 +0200 |
commit | f1e89c86fdd0f5e59f6768146c86437934202033 (patch) | |
tree | c5ba8766a3a029f0c10d6d0d09a57a7e28b7a51b /fs/nilfs2/the_nilfs.c | |
parent | nilfs2: get rid of GCDAT inode (diff) | |
download | linux-f1e89c86fdd0f5e59f6768146c86437934202033.tar.xz linux-f1e89c86fdd0f5e59f6768146c86437934202033.zip |
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/the_nilfs.c')
-rw-r--r-- | fs/nilfs2/the_nilfs.c | 58 |
1 files changed, 20 insertions, 38 deletions
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c index b7666bc04256..4d6763e28eb5 100644 --- a/fs/nilfs2/the_nilfs.c +++ b/fs/nilfs2/the_nilfs.c @@ -92,11 +92,6 @@ struct the_nilfs *alloc_nilfs(struct block_device *bdev) void destroy_nilfs(struct the_nilfs *nilfs) { might_sleep(); - if (nilfs_loaded(nilfs)) { - nilfs_mdt_destroy(nilfs->ns_sufile); - nilfs_mdt_destroy(nilfs->ns_cpfile); - nilfs_mdt_destroy(nilfs->ns_dat); - } if (nilfs_init(nilfs)) { brelse(nilfs->ns_sbh[0]); brelse(nilfs->ns_sbh[1]); @@ -104,11 +99,13 @@ void destroy_nilfs(struct the_nilfs *nilfs) kfree(nilfs); } -static int nilfs_load_super_root(struct the_nilfs *nilfs, sector_t sr_block) +static int nilfs_load_super_root(struct the_nilfs *nilfs, + struct super_block *sb, sector_t sr_block) { struct buffer_head *bh_sr; struct nilfs_super_root *raw_sr; struct nilfs_super_block **sbp = nilfs->ns_sbp; + struct nilfs_inode *rawi; unsigned dat_entry_size, segment_usage_size, checkpoint_size; unsigned inode_size; int err; @@ -125,34 +122,22 @@ static int nilfs_load_super_root(struct the_nilfs *nilfs, sector_t sr_block) inode_size = nilfs->ns_inode_size; - err = -ENOMEM; - nilfs->ns_dat = nilfs_dat_new(nilfs, dat_entry_size); - if (unlikely(!nilfs->ns_dat)) + rawi = (void *)bh_sr->b_data + NILFS_SR_DAT_OFFSET(inode_size); + err = nilfs_dat_read(sb, dat_entry_size, rawi, &nilfs->ns_dat); + if (err) goto failed; - nilfs->ns_cpfile = nilfs_cpfile_new(nilfs, checkpoint_size); - if (unlikely(!nilfs->ns_cpfile)) + rawi = (void *)bh_sr->b_data + NILFS_SR_CPFILE_OFFSET(inode_size); + err = nilfs_cpfile_read(sb, checkpoint_size, rawi, &nilfs->ns_cpfile); + if (err) goto failed_dat; - nilfs->ns_sufile = nilfs_sufile_new(nilfs, segment_usage_size); - if (unlikely(!nilfs->ns_sufile)) + rawi = (void *)bh_sr->b_data + NILFS_SR_SUFILE_OFFSET(inode_size); + err = nilfs_sufile_read(sb, segment_usage_size, rawi, + &nilfs->ns_sufile); + if (err) goto failed_cpfile; - err = nilfs_dat_read(nilfs->ns_dat, (void *)bh_sr->b_data + - NILFS_SR_DAT_OFFSET(inode_size)); - if (unlikely(err)) - goto failed_sufile; - - err = nilfs_cpfile_read(nilfs->ns_cpfile, (void *)bh_sr->b_data + - NILFS_SR_CPFILE_OFFSET(inode_size)); - if (unlikely(err)) - goto failed_sufile; - - err = nilfs_sufile_read(nilfs->ns_sufile, (void *)bh_sr->b_data + - NILFS_SR_SUFILE_OFFSET(inode_size)); - if (unlikely(err)) - goto failed_sufile; - raw_sr = (struct nilfs_super_root *)bh_sr->b_data; nilfs->ns_nongc_ctime = le64_to_cpu(raw_sr->sr_nongc_ctime); @@ -160,14 +145,11 @@ static int nilfs_load_super_root(struct the_nilfs *nilfs, sector_t sr_block) brelse(bh_sr); return err; - failed_sufile: - nilfs_mdt_destroy(nilfs->ns_sufile); - failed_cpfile: - nilfs_mdt_destroy(nilfs->ns_cpfile); + iput(nilfs->ns_cpfile); failed_dat: - nilfs_mdt_destroy(nilfs->ns_dat); + iput(nilfs->ns_dat); goto failed; } @@ -290,7 +272,7 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi) goto scan_error; } - err = nilfs_load_super_root(nilfs, ri.ri_super_root); + err = nilfs_load_super_root(nilfs, sbi->s_super, ri.ri_super_root); if (unlikely(err)) { printk(KERN_ERR "NILFS: error loading super root.\n"); goto failed; @@ -358,9 +340,9 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi) goto failed; failed_unload: - nilfs_mdt_destroy(nilfs->ns_cpfile); - nilfs_mdt_destroy(nilfs->ns_sufile); - nilfs_mdt_destroy(nilfs->ns_dat); + iput(nilfs->ns_cpfile); + iput(nilfs->ns_sufile); + iput(nilfs->ns_dat); failed: nilfs_clear_recovery_info(&ri); @@ -782,7 +764,7 @@ void nilfs_put_root(struct nilfs_root *root) rb_erase(&root->rb_node, &nilfs->ns_cptree); spin_unlock(&nilfs->ns_cptree_lock); if (root->ifile) - nilfs_mdt_destroy(root->ifile); + iput(root->ifile); kfree(root); } |