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authorMark Fasheh <mfasheh@suse.com>2008-11-13 00:43:34 +0100
committerMark Fasheh <mfasheh@suse.com>2009-04-03 20:39:15 +0200
commit4a12ca3a00a244e1fd1e673d151ea38b71e11d55 (patch)
tree84e30310a7d93ead9910f761e19d3fe73c5861b3 /fs/ocfs2/dir.h
parentocfs2: Remove debugfs file local_alloc_stats (diff)
downloadlinux-4a12ca3a00a244e1fd1e673d151ea38b71e11d55.tar.xz
linux-4a12ca3a00a244e1fd1e673d151ea38b71e11d55.zip
ocfs2: Introduce dir lookup helper struct
Many directory manipulation calls pass around a tuple of dirent, and it's containing buffer_head. Dir indexing has a bit more state, but instead of adding yet more arguments to functions, we introduce 'struct ocfs2_dir_lookup_result'. In this patch, it simply holds the same tuple, but future patches will add more state. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Acked-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/dir.h')
-rw-r--r--fs/ocfs2/dir.h30
1 files changed, 17 insertions, 13 deletions
diff --git a/fs/ocfs2/dir.h b/fs/ocfs2/dir.h
index c511e2e18e9f..505d3af9bba5 100644
--- a/fs/ocfs2/dir.h
+++ b/fs/ocfs2/dir.h
@@ -26,44 +26,48 @@
#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_dir_lookup_result {
+ struct buffer_head *dl_leaf_bh;
+ struct ocfs2_dir_entry *dl_entry;
+};
+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);
@@ -74,7 +78,7 @@ 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,