diff options
Diffstat (limited to 'fs/ocfs2/dir.h')
-rw-r--r-- | fs/ocfs2/dir.h | 57 |
1 files changed, 43 insertions, 14 deletions
diff --git a/fs/ocfs2/dir.h b/fs/ocfs2/dir.h index c511e2e..e683f3d 100644 --- a/fs/ocfs2/dir.h +++ b/fs/ocfs2/dir.h @@ -26,44 +26,70 @@ #ifndef OCFS2_DIR_H #define OCFS2_DIR_H -struct buffer_head *ocfs2_find_entry(const char *name, - int namelen, - struct inode *dir, - struct ocfs2_dir_entry **res_dir); +struct ocfs2_dx_hinfo { + u32 major_hash; + u32 minor_hash; +}; + +struct ocfs2_dir_lookup_result { + struct buffer_head *dl_leaf_bh; /* Unindexed leaf + * block */ + struct ocfs2_dir_entry *dl_entry; /* Target dirent in + * unindexed leaf */ + + struct buffer_head *dl_dx_root_bh; /* Root of indexed + * tree */ + + struct buffer_head *dl_dx_leaf_bh; /* Indexed leaf block */ + struct ocfs2_dx_entry *dl_dx_entry; /* Target dx_entry in + * indexed leaf */ + struct ocfs2_dx_hinfo dl_hinfo; /* Name hash results */ + + struct buffer_head *dl_prev_leaf_bh;/* Previous entry in + * dir free space + * list. NULL if + * previous entry is + * dx root block. */ +}; + +void ocfs2_free_dir_lookup_result(struct ocfs2_dir_lookup_result *res); + +int ocfs2_find_entry(const char *name, int namelen, + struct inode *dir, + struct ocfs2_dir_lookup_result *lookup); int ocfs2_delete_entry(handle_t *handle, struct inode *dir, - struct ocfs2_dir_entry *de_del, - struct buffer_head *bh); + struct ocfs2_dir_lookup_result *res); int __ocfs2_add_entry(handle_t *handle, struct inode *dir, const char *name, int namelen, struct inode *inode, u64 blkno, struct buffer_head *parent_fe_bh, - struct buffer_head *insert_bh); + struct ocfs2_dir_lookup_result *lookup); static inline int ocfs2_add_entry(handle_t *handle, struct dentry *dentry, struct inode *inode, u64 blkno, struct buffer_head *parent_fe_bh, - struct buffer_head *insert_bh) + struct ocfs2_dir_lookup_result *lookup) { return __ocfs2_add_entry(handle, dentry->d_parent->d_inode, dentry->d_name.name, dentry->d_name.len, - inode, blkno, parent_fe_bh, insert_bh); + inode, blkno, parent_fe_bh, lookup); } int ocfs2_update_entry(struct inode *dir, handle_t *handle, - struct buffer_head *de_bh, struct ocfs2_dir_entry *de, + struct ocfs2_dir_lookup_result *res, struct inode *new_entry_inode); int ocfs2_check_dir_for_entry(struct inode *dir, const char *name, int namelen); int ocfs2_empty_dir(struct inode *inode); + int ocfs2_find_files_on_disk(const char *name, int namelen, u64 *blkno, struct inode *inode, - struct buffer_head **dirent_bh, - struct ocfs2_dir_entry **dirent); + struct ocfs2_dir_lookup_result *res); int ocfs2_lookup_ino_from_name(struct inode *dir, const char *name, int namelen, u64 *blkno); int ocfs2_readdir(struct file *filp, void *dirent, filldir_t filldir); @@ -74,14 +100,17 @@ int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb, struct buffer_head *parent_fe_bh, const char *name, int namelen, - struct buffer_head **ret_de_bh); + struct ocfs2_dir_lookup_result *lookup); struct ocfs2_alloc_context; int ocfs2_fill_new_dir(struct ocfs2_super *osb, handle_t *handle, struct inode *parent, struct inode *inode, struct buffer_head *fe_bh, - struct ocfs2_alloc_context *data_ac); + struct ocfs2_alloc_context *data_ac, + struct ocfs2_alloc_context *meta_ac); + +int ocfs2_dx_dir_truncate(struct inode *dir, struct buffer_head *di_bh); struct ocfs2_dir_block_trailer *ocfs2_dir_trailer_from_size(int blocksize, void *data); |