delayed-ref.h File Reference

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Data Structures
struct	btrfs_delayed_ref_node
struct	btrfs_delayed_extent_op
struct	btrfs_delayed_ref_head
struct	btrfs_delayed_tree_ref
struct	btrfs_delayed_data_ref
struct	btrfs_delayed_ref_root

Macros
#define	BTRFS_ADD_DELAYED_REF   1 /* add one backref to the tree */
#define	BTRFS_DROP_DELAYED_REF   2 /* delete one backref from the tree */
#define	BTRFS_ADD_DELAYED_EXTENT   3 /* record a full extent allocation */
#define	BTRFS_UPDATE_DELAYED_HEAD   4 /* not changing ref count on head ref */

Functions
int	btrfs_add_delayed_tree_ref (struct btrfs_fs_info *fs_info, struct btrfs_trans_handle *trans, u64 bytenr, u64 num_bytes, u64 parent, u64 ref_root, int level, int action, struct btrfs_delayed_extent_op *extent_op, int for_cow)
int	btrfs_add_delayed_data_ref (struct btrfs_fs_info *fs_info, struct btrfs_trans_handle *trans, u64 bytenr, u64 num_bytes, u64 parent, u64 ref_root, u64 owner, u64 offset, int action, struct btrfs_delayed_extent_op *extent_op, int for_cow)
int	btrfs_add_delayed_extent_op (struct btrfs_fs_info *fs_info, struct btrfs_trans_handle *trans, u64 bytenr, u64 num_bytes, struct btrfs_delayed_extent_op *extent_op)
void	btrfs_merge_delayed_refs (struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, struct btrfs_delayed_ref_root *delayed_refs, struct btrfs_delayed_ref_head *head)
struct btrfs_delayed_ref_head *	btrfs_find_delayed_ref_head (struct btrfs_trans_handle *trans, u64 bytenr)
int	btrfs_delayed_ref_lock (struct btrfs_trans_handle *trans, struct btrfs_delayed_ref_head *head)
int	btrfs_find_ref_cluster (struct btrfs_trans_handle *trans, struct list_head *cluster, u64 search_start)
int	btrfs_check_delayed_seq (struct btrfs_fs_info *fs_info, struct btrfs_delayed_ref_root *delayed_refs, u64 seq)

Macro Definition Documentation

#define BTRFS_ADD_DELAYED_EXTENT   3 /* record a full extent allocation */

Definition at line 24 of file delayed-ref.h.

#define BTRFS_ADD_DELAYED_REF   1 /* add one backref to the tree */

Definition at line 22 of file delayed-ref.h.

#define BTRFS_DROP_DELAYED_REF   2 /* delete one backref from the tree */

Definition at line 23 of file delayed-ref.h.

#define BTRFS_UPDATE_DELAYED_HEAD   4 /* not changing ref count on head ref */

Definition at line 25 of file delayed-ref.h.

Function Documentation

int btrfs_add_delayed_data_ref	(	struct btrfs_fs_info *	fs_info,
		struct btrfs_trans_handle *	trans,
		u64	bytenr,
		u64	num_bytes,
		u64	parent,
		u64	ref_root,
		u64	owner,
		u64	offset,
		int	action,
		struct btrfs_delayed_extent_op *	extent_op,
		int	for_cow
	)

Definition at line 776 of file delayed-ref.c.

int btrfs_add_delayed_extent_op	(	struct btrfs_fs_info *	fs_info,
		struct btrfs_trans_handle *	trans,
		u64	bytenr,
		u64	num_bytes,
		struct btrfs_delayed_extent_op *	extent_op
	)

Definition at line 821 of file delayed-ref.c.

int btrfs_add_delayed_tree_ref	(	struct btrfs_fs_info *	fs_info,
		struct btrfs_trans_handle *	trans,
		u64	bytenr,
		u64	num_bytes,
		u64	parent,
		u64	ref_root,
		int	level,
		int	action,
		struct btrfs_delayed_extent_op *	extent_op,
		int	for_cow
	)

Definition at line 729 of file delayed-ref.c.

int btrfs_check_delayed_seq	(	struct btrfs_fs_info *	fs_info,
		struct btrfs_delayed_ref_root *	delayed_refs,
		u64	seq
	)

Definition at line 344 of file delayed-ref.c.

int btrfs_delayed_ref_lock	(	struct btrfs_trans_handle *	trans,
		struct btrfs_delayed_ref_head *	head
	)

Definition at line 212 of file delayed-ref.c.

struct btrfs_delayed_ref_head* btrfs_find_delayed_ref_head ( struct btrfs_trans_handle *  trans, u64  bytenr  )

read

Definition at line 852 of file delayed-ref.c.

int btrfs_find_ref_cluster	(	struct btrfs_trans_handle *	trans,
		struct list_head *	cluster,
		u64	search_start
	)

Definition at line 366 of file delayed-ref.c.

void btrfs_merge_delayed_refs	(	struct btrfs_trans_handle *	trans,
		struct btrfs_fs_info *	fs_info,
		struct btrfs_delayed_ref_root *	delayed_refs,
		struct btrfs_delayed_ref_head *	head
	)

Definition at line 307 of file delayed-ref.c.