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xattr support for btrfs

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Josef Bacik
2007-11-16 11:45:54 -05:00
committed by Chris Mason
parent 0591fb56fb
commit 5103e947b9
9 changed files with 751 additions and 14 deletions
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22
fs/btrfs/ctree.h
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@ -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