aboutsummaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-09-05 12:20:59 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-10-23 09:24:38 +0900
commitf1e89c86fdd0f5e59f6768146c86437934202033 (patch)
treec5ba8766a3a029f0c10d6d0d09a57a7e28b7a51b /fs
parentc1c1d7092072093ad960db2f6c08f06705c57fa4 (diff)
downloadlinux-f1e89c86fdd0f5e59f6768146c86437934202033.tar.gz
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')
-rw-r--r--fs/nilfs2/cpfile.c49
-rw-r--r--fs/nilfs2/cpfile.h4
-rw-r--r--fs/nilfs2/dat.c61
-rw-r--r--fs/nilfs2/dat.h4
-rw-r--r--fs/nilfs2/ifile.c51
-rw-r--r--fs/nilfs2/ifile.h4
-rw-r--r--fs/nilfs2/inode.c13
-rw-r--r--fs/nilfs2/mdt.c16
-rw-r--r--fs/nilfs2/mdt.h3
-rw-r--r--fs/nilfs2/nilfs.h2
-rw-r--r--fs/nilfs2/sufile.c73
-rw-r--r--fs/nilfs2/sufile.h4
-rw-r--r--fs/nilfs2/super.c21
-rw-r--r--fs/nilfs2/the_nilfs.c58
14 files changed, 207 insertions, 156 deletions
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index 18737818db6..03de1da8795 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;
}
diff --git a/fs/nilfs2/cpfile.h b/fs/nilfs2/cpfile.h
index bc0809e0ab4..a242b9a314f 100644
--- a/fs/nilfs2/cpfile.h
+++ b/fs/nilfs2/cpfile.h
@@ -40,7 +40,7 @@ int nilfs_cpfile_get_stat(struct inode *, struct nilfs_cpstat *);
ssize_t nilfs_cpfile_get_cpinfo(struct inode *, __u64 *, int, void *, unsigned,
size_t);
-int nilfs_cpfile_read(struct inode *cpfile, struct nilfs_inode *raw_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);
#endif /* _NILFS_CPFILE_H */
diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c
index 7091c4e0f04..ab04a68f425 100644
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -463,39 +463,48 @@ ssize_t nilfs_dat_get_vinfo(struct inode *dat, void *buf, unsigned visz,
}
/**
- * nilfs_dat_read - read dat inode
- * @dat: dat inode
- * @raw_inode: on-disk dat inode
- */
-int nilfs_dat_read(struct inode *dat, struct nilfs_inode *raw_inode)
-{
- return nilfs_read_inode_common(dat, raw_inode);
-}
-
-/**
- * nilfs_dat_new - create dat file
- * @nilfs: nilfs object
+ * nilfs_dat_read - read or get dat inode
+ * @sb: super block instance
* @entry_size: size of a dat entry
+ * @raw_inode: on-disk dat inode
+ * @inodep: buffer to store the inode
*/
-struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size)
+int nilfs_dat_read(struct super_block *sb, size_t entry_size,
+ struct nilfs_inode *raw_inode, struct inode **inodep)
{
static struct lock_class_key dat_lock_key;
struct inode *dat;
struct nilfs_dat_info *di;
int err;
- dat = nilfs_mdt_new(nilfs, NULL, NILFS_DAT_INO, sizeof(*di));
- if (dat) {
- err = nilfs_palloc_init_blockgroup(dat, entry_size);
- if (unlikely(err)) {
- nilfs_mdt_destroy(dat);
- return NULL;
- }
+ dat = nilfs_iget_locked(sb, NULL, NILFS_DAT_INO);
+ if (unlikely(!dat))
+ return -ENOMEM;
+ if (!(dat->i_state & I_NEW))
+ goto out;
- di = NILFS_DAT_I(dat);
- lockdep_set_class(&di->mi.mi_sem, &dat_lock_key);
- nilfs_palloc_setup_cache(dat, &di->palloc_cache);
- nilfs_mdt_setup_shadow_map(dat, &di->shadow);
- }
- return dat;
+ err = nilfs_mdt_init(dat, NILFS_MDT_GFP, sizeof(*di));
+ if (err)
+ goto failed;
+
+ err = nilfs_palloc_init_blockgroup(dat, entry_size);
+ if (err)
+ goto failed;
+
+ di = NILFS_DAT_I(dat);
+ lockdep_set_class(&di->mi.mi_sem, &dat_lock_key);
+ nilfs_palloc_setup_cache(dat, &di->palloc_cache);
+ nilfs_mdt_setup_shadow_map(dat, &di->shadow);
+
+ err = nilfs_read_inode_common(dat, raw_inode);
+ if (err)
+ goto failed;
+
+ unlock_new_inode(dat);
+ out:
+ *inodep = dat;
+ return 0;
+ failed:
+ iget_failed(dat);
+ return err;
}
diff --git a/fs/nilfs2/dat.h b/fs/nilfs2/dat.h
index d31c3aab0ef..cbd8e973250 100644
--- a/fs/nilfs2/dat.h
+++ b/fs/nilfs2/dat.h
@@ -53,7 +53,7 @@ int nilfs_dat_freev(struct inode *, __u64 *, size_t);
int nilfs_dat_move(struct inode *, __u64, sector_t);
ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
-int nilfs_dat_read(struct inode *dat, struct nilfs_inode *raw_inode);
-struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size);
+int nilfs_dat_read(struct super_block *sb, size_t entry_size,
+ struct nilfs_inode *raw_inode, struct inode **inodep);
#endif /* _NILFS_DAT_H */
diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c
index 922d9dd42c8..9f8a2da67f9 100644
--- a/fs/nilfs2/ifile.c
+++ b/fs/nilfs2/ifile.c
@@ -161,25 +161,46 @@ int nilfs_ifile_get_inode_block(struct inode *ifile, ino_t ino,
}
/**
- * nilfs_ifile_new - create inode file
- * @sbi: nilfs_sb_info struct
+ * nilfs_ifile_read - read or get ifile inode
+ * @sb: super block instance
+ * @root: root object
* @inode_size: size of an inode
+ * @raw_inode: on-disk ifile inode
+ * @inodep: buffer to store the inode
*/
-struct inode *nilfs_ifile_new(struct nilfs_sb_info *sbi, size_t inode_size)
+int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
+ size_t inode_size, struct nilfs_inode *raw_inode,
+ struct inode **inodep)
{
struct inode *ifile;
int err;
- ifile = nilfs_mdt_new(sbi->s_nilfs, sbi->s_super, NILFS_IFILE_INO,
- sizeof(struct nilfs_ifile_info));
- if (ifile) {
- err = nilfs_palloc_init_blockgroup(ifile, inode_size);
- if (unlikely(err)) {
- nilfs_mdt_destroy(ifile);
- return NULL;
- }
- nilfs_palloc_setup_cache(ifile,
- &NILFS_IFILE_I(ifile)->palloc_cache);
- }
- return ifile;
+ ifile = nilfs_iget_locked(sb, root, NILFS_IFILE_INO);
+ if (unlikely(!ifile))
+ return -ENOMEM;
+ if (!(ifile->i_state & I_NEW))
+ goto out;
+
+ err = nilfs_mdt_init(ifile, NILFS_MDT_GFP,
+ sizeof(struct nilfs_ifile_info));
+ if (err)
+ goto failed;
+
+ err = nilfs_palloc_init_blockgroup(ifile, inode_size);
+ if (err)
+ goto failed;
+
+ nilfs_palloc_setup_cache(ifile, &NILFS_IFILE_I(ifile)->palloc_cache);
+
+ err = nilfs_read_inode_common(ifile, raw_inode);
+ if (err)
+ goto failed;
+
+ unlock_new_inode(ifile);
+ out:
+ *inodep = ifile;
+ return 0;
+ failed:
+ iget_failed(ifile);
+ return err;
}
diff --git a/fs/nilfs2/ifile.h b/fs/nilfs2/ifile.h
index cbca32e498f..59b6f2b51df 100644
--- a/fs/nilfs2/ifile.h
+++ b/fs/nilfs2/ifile.h
@@ -49,6 +49,8 @@ int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
int nilfs_ifile_delete_inode(struct inode *, ino_t);
int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
-struct inode *nilfs_ifile_new(struct nilfs_sb_info *sbi, size_t inode_size);
+int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
+ size_t inode_size, struct nilfs_inode *raw_inode,
+ struct inode **inodep);
#endif /* _NILFS_IFILE_H */
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 5485dd12da6..5b3d43fb4e1 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -506,16 +506,23 @@ static int nilfs_iget_set(struct inode *inode, void *opaque)
return 0;
}
-struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root,
- unsigned long ino)
+struct inode *nilfs_iget_locked(struct super_block *sb, struct nilfs_root *root,
+ unsigned long ino)
{
struct nilfs_iget_args args = {
.ino = ino, .root = root, .cno = 0, .for_gc = 0
};
+
+ return iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args);
+}
+
+struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root,
+ unsigned long ino)
+{
struct inode *inode;
int err;
- inode = iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args);
+ inode = nilfs_iget_locked(sb, root, ino);
if (unlikely(!inode))
return ERR_PTR(-ENOMEM);
if (!(inode->i_state & I_NEW))
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 3bbd340a513..44326cfe1fa 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -444,8 +444,7 @@ static const struct inode_operations def_mdt_iops;
static const struct file_operations def_mdt_fops;
-int nilfs_mdt_init(struct inode *inode, struct the_nilfs *nilfs,
- gfp_t gfp_mask, size_t objsz)
+int nilfs_mdt_init(struct inode *inode, gfp_t gfp_mask, size_t objsz)
{
struct nilfs_mdt_info *mi;
@@ -453,13 +452,17 @@ int nilfs_mdt_init(struct inode *inode, struct the_nilfs *nilfs,
if (!mi)
return -ENOMEM;
- mi->mi_nilfs = nilfs;
+ mi->mi_nilfs = NILFS_I_NILFS(inode);
init_rwsem(&mi->mi_sem);
inode->i_private = mi;
inode->i_mode = S_IFREG;
mapping_set_gfp_mask(inode->i_mapping, gfp_mask);
- inode->i_mapping->backing_dev_info = nilfs->ns_bdi;
+ inode->i_mapping->backing_dev_info = inode->i_sb->s_bdi;
+
+ inode->i_op = &def_mdt_iops;
+ inode->i_fop = &def_mdt_fops;
+ inode->i_mapping->a_ops = &def_mdt_aops;
return 0;
}
@@ -544,13 +547,10 @@ struct inode *nilfs_mdt_new(struct the_nilfs *nilfs, struct super_block *sb,
if (!inode)
return NULL;
- if (nilfs_mdt_init(inode, nilfs, NILFS_MDT_GFP, objsz) < 0) {
+ if (nilfs_mdt_init(inode, NILFS_MDT_GFP, objsz) < 0) {
nilfs_destroy_inode(inode);
return NULL;
}
- inode->i_op = &def_mdt_iops;
- inode->i_fop = &def_mdt_fops;
- inode->i_mapping->a_ops = &def_mdt_aops;
return inode;
}
diff --git a/fs/nilfs2/mdt.h b/fs/nilfs2/mdt.h
index 1e0901c3fd6..73ff7c05571 100644
--- a/fs/nilfs2/mdt.h
+++ b/fs/nilfs2/mdt.h
@@ -85,8 +85,7 @@ int nilfs_mdt_forget_block(struct inode *, unsigned long);
int nilfs_mdt_mark_block_dirty(struct inode *, unsigned long);
int nilfs_mdt_fetch_dirty(struct inode *);
-int nilfs_mdt_init(struct inode *inode, struct the_nilfs *nilfs,
- gfp_t gfp_mask, size_t objsz);
+int nilfs_mdt_init(struct inode *inode, gfp_t gfp_mask, size_t objsz);
struct inode *nilfs_mdt_new(struct the_nilfs *, struct super_block *, ino_t,
size_t);
struct inode *nilfs_mdt_new_common(struct the_nilfs *, struct super_block *,
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index e9f457951e3..2ca2ca5ca84 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -244,6 +244,8 @@ extern int nilfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern void nilfs_set_inode_flags(struct inode *);
extern int nilfs_read_inode_common(struct inode *, struct nilfs_inode *);
extern void nilfs_write_inode_common(struct inode *, struct nilfs_inode *, int);
+struct inode *nilfs_iget_locked(struct super_block *sb, struct nilfs_root *root,
+ unsigned long ino);
struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root,
unsigned long ino);
extern struct inode *nilfs_iget_for_gc(struct super_block *sb,
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index 3c6cc6005c2..599d9c27761 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -635,46 +635,55 @@ ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum, void *buf,
}
/**
- * nilfs_sufile_read - read sufile inode
- * @sufile: sufile inode
+ * nilfs_sufile_read - read or get sufile inode
+ * @sb: super block instance
+ * @susize: size of a segment usage entry
* @raw_inode: on-disk sufile inode
+ * @inodep: buffer to store the inode
*/
-int nilfs_sufile_read(struct inode *sufile, struct nilfs_inode *raw_inode)
+int nilfs_sufile_read(struct super_block *sb, size_t susize,
+ struct nilfs_inode *raw_inode, struct inode **inodep)
{
- struct nilfs_sufile_info *sui = NILFS_SUI(sufile);
+ struct inode *sufile;
+ struct nilfs_sufile_info *sui;
struct buffer_head *header_bh;
struct nilfs_sufile_header *header;
void *kaddr;
- int ret;
+ int err;
- ret = nilfs_read_inode_common(sufile, raw_inode);
- if (ret < 0)
- return ret;
+ sufile = nilfs_iget_locked(sb, NULL, NILFS_SUFILE_INO);
+ if (unlikely(!sufile))
+ return -ENOMEM;
+ if (!(sufile->i_state & I_NEW))
+ goto out;
- ret = nilfs_sufile_get_header_block(sufile, &header_bh);
- if (!ret) {
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
- header = kaddr + bh_offset(header_bh);
- sui->ncleansegs = le64_to_cpu(header->sh_ncleansegs);
- kunmap_atomic(kaddr, KM_USER0);
- brelse(header_bh);
- }
- return ret;
-}
+ err = nilfs_mdt_init(sufile, NILFS_MDT_GFP, sizeof(*sui));
+ if (err)
+ goto failed;
-/**
- * nilfs_sufile_new - create sufile
- * @nilfs: nilfs object
- * @susize: size of a segment usage entry
- */
-struct inode *nilfs_sufile_new(struct the_nilfs *nilfs, size_t susize)
-{
- struct inode *sufile;
+ nilfs_mdt_set_entry_size(sufile, susize,
+ sizeof(struct nilfs_sufile_header));
+
+ err = nilfs_read_inode_common(sufile, raw_inode);
+ if (err)
+ goto failed;
+
+ err = nilfs_sufile_get_header_block(sufile, &header_bh);
+ if (err)
+ goto failed;
- sufile = nilfs_mdt_new(nilfs, NULL, NILFS_SUFILE_INO,
- sizeof(struct nilfs_sufile_info));
- if (sufile)
- nilfs_mdt_set_entry_size(sufile, susize,
- sizeof(struct nilfs_sufile_header));
- return sufile;
+ sui = NILFS_SUI(sufile);
+ kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ header = kaddr + bh_offset(header_bh);
+ sui->ncleansegs = le64_to_cpu(header->sh_ncleansegs);
+ kunmap_atomic(kaddr, KM_USER0);
+ brelse(header_bh);
+
+ unlock_new_inode(sufile);
+ out:
+ *inodep = sufile;
+ return 0;
+ failed:
+ iget_failed(sufile);
+ return err;
}
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index 15163b8aff7..203f6102a62 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -61,8 +61,8 @@ void nilfs_sufile_do_cancel_free(struct inode *, __u64, struct buffer_head *,
void nilfs_sufile_do_set_error(struct inode *, __u64, struct buffer_head *,
struct buffer_head *);
-int nilfs_sufile_read(struct inode *sufile, struct nilfs_inode *raw_inode);
-struct inode *nilfs_sufile_new(struct the_nilfs *nilfs, size_t susize);
+int nilfs_sufile_read(struct super_block *sb, size_t susize,
+ struct nilfs_inode *raw_inode, struct inode **inodep);
/**
* nilfs_sufile_scrap - make a segment garbage
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 5893cb27c90..39e7d7f8eda 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -356,6 +356,10 @@ static void nilfs_put_super(struct super_block *sb)
up_write(&nilfs->ns_sem);
}
+ iput(nilfs->ns_sufile);
+ iput(nilfs->ns_cpfile);
+ iput(nilfs->ns_dat);
+
destroy_nilfs(nilfs);
sbi->s_super = NULL;
sb->s_fs_info = NULL;
@@ -403,10 +407,6 @@ int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno, int curr_mnt,
if (root->ifile)
goto reuse; /* already attached checkpoint */
- root->ifile = nilfs_ifile_new(sbi, nilfs->ns_inode_size);
- if (!root->ifile)
- goto failed;
-
down_read(&nilfs->ns_segctor_sem);
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, cno, 0, &raw_cp,
&bh_cp);
@@ -421,8 +421,10 @@ int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno, int curr_mnt,
}
goto failed;
}
- err = nilfs_read_inode_common(root->ifile, &raw_cp->cp_ifile_inode);
- if (unlikely(err))
+
+ err = nilfs_ifile_read(sbi->s_super, root, nilfs->ns_inode_size,
+ &raw_cp->cp_ifile_inode, &root->ifile);
+ if (err)
goto failed_bh;
atomic_set(&root->inodes_count, le64_to_cpu(raw_cp->cp_inodes_count));
@@ -895,7 +897,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
if (err) {
printk(KERN_ERR "NILFS: error loading last checkpoint "
"(checkpoint number=%llu).\n", (unsigned long long)cno);
- goto failed_nilfs;
+ goto failed_unload;
}
if (!(sb->s_flags & MS_RDONLY)) {
@@ -924,6 +926,11 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
failed_checkpoint:
nilfs_put_root(fsroot);
+ failed_unload:
+ iput(nilfs->ns_sufile);
+ iput(nilfs->ns_cpfile);
+ iput(nilfs->ns_dat);
+
failed_nilfs:
destroy_nilfs(nilfs);
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index b7666bc0425..4d6763e28eb 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);
}