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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-11-13 01:36:56 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-11-20 10:05:48 +0900
commit8707df38478c8e0958b706f0ea1cdf99d00a9469 (patch)
tree5bc882fda214b4020f65f1df217e7fae40c10145
parent79739565e15f2adbc482207a0800fc127c84d1a0 (diff)
nilfs2: separate read method of meta data files on super root block
Will displace nilfs_mdt_read_inode_direct function with an individual read method: nilfs_dat_read, nilfs_sufile_read, nilfs_cpfile_read. This provides the opportunity to initialize local variables of each metadata file after reading the inode. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
-rw-r--r--fs/nilfs2/cpfile.c10
-rw-r--r--fs/nilfs2/cpfile.h1
-rw-r--r--fs/nilfs2/dat.c10
-rw-r--r--fs/nilfs2/dat.h1
-rw-r--r--fs/nilfs2/sufile.c10
-rw-r--r--fs/nilfs2/sufile.h1
-rw-r--r--fs/nilfs2/the_nilfs.c12
7 files changed, 39 insertions, 6 deletions
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index 2aaefaec156..d5ad54e204a 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -928,6 +928,16 @@ 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
* @cpsize: size of a checkpoint entry
diff --git a/fs/nilfs2/cpfile.h b/fs/nilfs2/cpfile.h
index 8ff2b4f4656..bc0809e0ab4 100644
--- a/fs/nilfs2/cpfile.h
+++ b/fs/nilfs2/cpfile.h
@@ -40,6 +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);
#endif /* _NILFS_CPFILE_H */
diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c
index 239a4223499..eff3169ba10 100644
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -427,6 +427,16 @@ 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
* @entry_size: size of a dat entry
diff --git a/fs/nilfs2/dat.h b/fs/nilfs2/dat.h
index 98f33067cb8..d31c3aab0ef 100644
--- a/fs/nilfs2/dat.h
+++ b/fs/nilfs2/dat.h
@@ -53,6 +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);
#endif /* _NILFS_DAT_H */
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index 6fb707ab7e2..b344f27238f 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -659,6 +659,16 @@ ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum, void *buf,
}
/**
+ * nilfs_sufile_read - read sufile inode
+ * @sufile: sufile inode
+ * @raw_inode: on-disk sufile inode
+ */
+int nilfs_sufile_read(struct inode *sufile, struct nilfs_inode *raw_inode)
+{
+ return nilfs_read_inode_common(sufile, raw_inode);
+}
+
+/**
* nilfs_sufile_new - create sufile
* @nilfs: nilfs object
* @susize: size of a segment usage entry
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index 50d3191ae4f..b303a80ac3b 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -62,6 +62,7 @@ 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);
/**
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index d4a731fd4e3..bc7760c2a8f 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -204,18 +204,18 @@ static int nilfs_load_super_root(struct the_nilfs *nilfs,
nilfs_mdt_set_shadow(nilfs->ns_dat, nilfs->ns_gc_dat);
- err = nilfs_mdt_read_inode_direct(
- nilfs->ns_dat, bh_sr, NILFS_SR_DAT_OFFSET(inode_size));
+ 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_mdt_read_inode_direct(
- nilfs->ns_cpfile, bh_sr, NILFS_SR_CPFILE_OFFSET(inode_size));
+ 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_mdt_read_inode_direct(
- nilfs->ns_sufile, bh_sr, NILFS_SR_SUFILE_OFFSET(inode_size));
+ err = nilfs_sufile_read(nilfs->ns_sufile, (void *)bh_sr->b_data +
+ NILFS_SR_SUFILE_OFFSET(inode_size));
if (unlikely(err))
goto failed_sufile;