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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-08-25 12:45:44 +0400
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-10-23 04:24:34 +0400
commit4d8d9293dce503eb0e083e17a02a328d397e7f00 (patch)
treeffa2dce7f100b1346131adc01cf93e280b225509 /fs/nilfs2/nilfs.h
parentba65ae4729bf81c58d9fc847f67d57eec525b042 (diff)
downloadlinux-4d8d9293dce503eb0e083e17a02a328d397e7f00.tar.xz
nilfs2: set pointer to root object in inodes
This puts a pointer to nilfs_root object in the private part of on-memory inode, and makes nilfs_iget function pick up the inode with the same root object. Non-root inodes inherit its nilfs_root object from parent inode. That of the root inode is allocated through nilfs_attach_checkpoint() function. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/nilfs.h')
-rw-r--r--fs/nilfs2/nilfs.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 797cd437970e..21d90c4b4e2d 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -59,6 +59,7 @@ struct nilfs_inode_info {
#endif
struct buffer_head *i_bh; /* i_bh contains a new or dirty
disk inode */
+ struct nilfs_root *i_root;
struct inode vfs_inode;
};
@@ -247,7 +248,8 @@ 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);
-extern struct inode *nilfs_iget(struct super_block *, unsigned long);
+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,
unsigned long ino, __u64 cno);
extern void nilfs_update_inode(struct inode *, struct buffer_head *);
@@ -285,7 +287,8 @@ extern struct nilfs_super_block **nilfs_prepare_super(struct nilfs_sb_info *,
int flip);
extern int nilfs_commit_super(struct nilfs_sb_info *, int);
extern int nilfs_cleanup_super(struct nilfs_sb_info *);
-extern int nilfs_attach_checkpoint(struct nilfs_sb_info *, __u64);
+int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno, int curr_mnt,
+ struct nilfs_root **root);
extern void nilfs_detach_checkpoint(struct nilfs_sb_info *);
/* gcinode.c */