Commit 8d52ba60 authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: reflink_format.h 



Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent b2fa1b63

fs/bcachefs/bcachefs_format.h

+2 −47
Original line number Diff line number Diff line
@@ -423,14 +423,6 @@ struct bch_csum { 
	__le64			hi;

} __packed __aligned(8);



struct bch_reservation {

	struct bch_val		v;



	__le32			generation;

	__u8			nr_replicas;

	__u8			pad[3];

} __packed __aligned(8);



struct bch_backpointer {

	struct bch_val		v;

	__u8			btree_id;
@@ -441,45 +433,6 @@ struct bch_backpointer { 
	struct bpos		pos;

} __packed __aligned(8);



#include "extents_format.h"



/* Reflink: */



struct bch_reflink_p {

	struct bch_val		v;

	__le64			idx;

	/*

	 * A reflink pointer might point to an indirect extent which is then

	 * later split (by copygc or rebalance). If we only pointed to part of

	 * the original indirect extent, and then one of the fragments is

	 * outside the range we point to, we'd leak a refcount: so when creating

	 * reflink pointers, we need to store pad values to remember the full

	 * range we were taking a reference on.

	 */

	__le32			front_pad;

	__le32			back_pad;

} __packed __aligned(8);



struct bch_reflink_v {

	struct bch_val		v;

	__le64			refcount;

	union bch_extent_entry	start[0];

	__u64			_data[];

} __packed __aligned(8);



struct bch_indirect_inline_data {

	struct bch_val		v;

	__le64			refcount;

	u8			data[];

};



/* Inline data */



struct bch_inline_data {

	struct bch_val		v;

	u8			data[];

};



/* LRU btree: */



struct bch_lru {
@@ -542,6 +495,8 @@ struct bch_sb_field { 
	x(downgrade,			14)



#include "alloc_background_format.h"

#include "extents_format.h"

#include "reflink_format.h"

#include "ec_format.h"

#include "inode_format.h"

#include "dirent_format.h"

fs/bcachefs/extents_format.h

+13 −0
Original line number Diff line number Diff line
@@ -279,4 +279,17 @@ struct bch_extent { 
#define BKEY_BTREE_PTR_U64s_MAX					\

	(BKEY_U64s + BKEY_BTREE_PTR_VAL_U64s_MAX)



struct bch_reservation {

	struct bch_val		v;



	__le32			generation;

	__u8			nr_replicas;

	__u8			pad[3];

} __packed __aligned(8);



struct bch_inline_data {

	struct bch_val		v;

	u8			data[];

};



#endif /* _BCACHEFS_EXTENTS_FORMAT_H */

fs/bcachefs/reflink_format.h

0 → 100644
+33 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _BCACHEFS_REFLINK_FORMAT_H

#define _BCACHEFS_REFLINK_FORMAT_H



struct bch_reflink_p {

	struct bch_val		v;

	__le64			idx;

	/*

	 * A reflink pointer might point to an indirect extent which is then

	 * later split (by copygc or rebalance). If we only pointed to part of

	 * the original indirect extent, and then one of the fragments is

	 * outside the range we point to, we'd leak a refcount: so when creating

	 * reflink pointers, we need to store pad values to remember the full

	 * range we were taking a reference on.

	 */

	__le32			front_pad;

	__le32			back_pad;

} __packed __aligned(8);



struct bch_reflink_v {

	struct bch_val		v;

	__le64			refcount;

	union bch_extent_entry	start[0];

	__u64			_data[];

} __packed __aligned(8);



struct bch_indirect_inline_data {

	struct bch_val		v;

	__le64			refcount;

	u8			data[];

};



#endif /* _BCACHEFS_REFLINK_FORMAT_H */