From 5103e947b9b7ac18ddb21a04ee3486e94c6504d7 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 16 Nov 2007 11:45:54 -0500 Subject: xattr support for btrfs Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) (limited to 'fs/btrfs/ctree.h') diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 030d21d7f98c..27cadae1af63 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -63,7 +63,8 @@ extern struct kmem_cache *btrfs_path_cachep; #define BTRFS_FT_FIFO 5 #define BTRFS_FT_SOCK 6 #define BTRFS_FT_SYMLINK 7 -#define BTRFS_FT_MAX 8 +#define BTRFS_FT_XATTR 8 +#define BTRFS_FT_MAX 9 /* * the key defines the order in the tree, and so it also defines (optimal) @@ -226,7 +227,7 @@ struct btrfs_inode_item { struct btrfs_dir_item { struct btrfs_disk_key location; - __le16 flags; + __le16 data_len; __le16 name_len; u8 type; } __attribute__ ((__packed__)); @@ -367,7 +368,7 @@ struct btrfs_root { * the FS */ #define BTRFS_INODE_ITEM_KEY 1 - +#define BTRFS_XATTR_ITEM_KEY 2 /* reserve 2-15 close to the inode for later flexibility */ /* @@ -621,7 +622,7 @@ static inline void btrfs_set_item_key(struct extent_buffer *eb, } /* struct btrfs_dir_item */ -BTRFS_SETGET_FUNCS(dir_flags, struct btrfs_dir_item, flags, 16); +BTRFS_SETGET_FUNCS(dir_data_len, struct btrfs_dir_item, data_len, 16); BTRFS_SETGET_FUNCS(dir_type, struct btrfs_dir_item, type, 8); BTRFS_SETGET_FUNCS(dir_name_len, struct btrfs_dir_item, name_len, 16); @@ -962,6 +963,15 @@ int btrfs_delete_one_dir_name(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_dir_item *di); +int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans, + struct btrfs_root *root, const char *name, + u16 name_len, const void *data, u16 data_len, + u64 dir); +struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + struct btrfs_path *path, u64 dir, + const char *name, u16 name_len, + int mod); /* inode-map.c */ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans, struct btrfs_root *fs_root, @@ -1039,4 +1049,8 @@ int btrfs_sysfs_add_root(struct btrfs_root *root); void btrfs_sysfs_del_root(struct btrfs_root *root); void btrfs_sysfs_del_super(struct btrfs_fs_info *root); +/* xattr.c */ +ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size); +int btrfs_delete_xattrs(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct inode *inode); #endif -- cgit v1.2.3