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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-08-25 10:45:44 +0200 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-10-23 02:24:34 +0200 |
| commit | 4d8d9293dce503eb0e083e17a02a328d397e7f00 (patch) | |
| tree | ffa2dce7f100b1346131adc01cf93e280b225509 /fs/nilfs2/nilfs.h | |
| parent | nilfs2: add checkpoint tree to nilfs object (diff) | |
| download | linux-4d8d9293dce503eb0e083e17a02a328d397e7f00.tar.xz linux-4d8d9293dce503eb0e083e17a02a328d397e7f00.zip | |
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.h | 7 |
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 */ |