#define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header))
#define BTRFS_LEAF_DATA_SIZE(fs_info) \
(__BTRFS_LEAF_DATA_SIZE(fs_info->nodesize))
-#define BTRFS_MAX_XATTR_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r->fs_info) - \
- sizeof(struct btrfs_item) -\
- sizeof(struct btrfs_dir_item))
-
/*
* this is a very generous portion of the super block, giving us
BTRFS_FILE_EXTENT_INLINE_DATA_START;
}
+static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_fs_info *info)
+{
+ return BTRFS_MAX_ITEM_SIZE(info) - sizeof(struct btrfs_dir_item);
+}
+
/*
* inode items have the data typically returned from stat and store other
* info about object characteristics. There is one for every file and dir in
return btrfs_item_end(eb, btrfs_item_nr(nr));
}
-static inline u32 btrfs_item_offset_nr(struct extent_buffer *eb, int nr)
+static inline u32 btrfs_item_offset_nr(const struct extent_buffer *eb, int nr)
{
return btrfs_item_offset(eb, btrfs_item_nr(nr));
}
u32 blocksize, u64 root_objectid,
struct btrfs_disk_key *key, int level,
u64 hint, u64 empty_size);
-int btrfs_alloc_extent(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- u64 num_bytes, u64 parent,
- u64 root_objectid, u64 ref_generation,
- u64 owner, u64 empty_size, u64 hint_byte,
- u64 search_end, struct btrfs_key *ins, int data);
int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 bytenr,
u64 offset, int metadata, u64 *refs, u64 *flags);