Commit d455179f authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: alloc_background_format.h 



Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 72e08010

fs/bcachefs/alloc_background_format.h

0 → 100644
+92 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _BCACHEFS_ALLOC_BACKGROUND_FORMAT_H

#define _BCACHEFS_ALLOC_BACKGROUND_FORMAT_H



struct bch_alloc {

	struct bch_val		v;

	__u8			fields;

	__u8			gen;

	__u8			data[];

} __packed __aligned(8);



#define BCH_ALLOC_FIELDS_V1()			\

	x(read_time,		16)		\

	x(write_time,		16)		\

	x(data_type,		8)		\

	x(dirty_sectors,	16)		\

	x(cached_sectors,	16)		\

	x(oldest_gen,		8)		\

	x(stripe,		32)		\

	x(stripe_redundancy,	8)



enum {

#define x(name, _bits) BCH_ALLOC_FIELD_V1_##name,

	BCH_ALLOC_FIELDS_V1()

#undef x

};



struct bch_alloc_v2 {

	struct bch_val		v;

	__u8			nr_fields;

	__u8			gen;

	__u8			oldest_gen;

	__u8			data_type;

	__u8			data[];

} __packed __aligned(8);



#define BCH_ALLOC_FIELDS_V2()			\

	x(read_time,		64)		\

	x(write_time,		64)		\

	x(dirty_sectors,	32)		\

	x(cached_sectors,	32)		\

	x(stripe,		32)		\

	x(stripe_redundancy,	8)



struct bch_alloc_v3 {

	struct bch_val		v;

	__le64			journal_seq;

	__le32			flags;

	__u8			nr_fields;

	__u8			gen;

	__u8			oldest_gen;

	__u8			data_type;

	__u8			data[];

} __packed __aligned(8);



LE32_BITMASK(BCH_ALLOC_V3_NEED_DISCARD,struct bch_alloc_v3, flags,  0,  1)

LE32_BITMASK(BCH_ALLOC_V3_NEED_INC_GEN,struct bch_alloc_v3, flags,  1,  2)



struct bch_alloc_v4 {

	struct bch_val		v;

	__u64			journal_seq;

	__u32			flags;

	__u8			gen;

	__u8			oldest_gen;

	__u8			data_type;

	__u8			stripe_redundancy;

	__u32			dirty_sectors;

	__u32			cached_sectors;

	__u64			io_time[2];

	__u32			stripe;

	__u32			nr_external_backpointers;

	__u64			fragmentation_lru;

} __packed __aligned(8);



#define BCH_ALLOC_V4_U64s_V0	6

#define BCH_ALLOC_V4_U64s	(sizeof(struct bch_alloc_v4) / sizeof(__u64))



BITMASK(BCH_ALLOC_V4_NEED_DISCARD,	struct bch_alloc_v4, flags,  0,  1)

BITMASK(BCH_ALLOC_V4_NEED_INC_GEN,	struct bch_alloc_v4, flags,  1,  2)

BITMASK(BCH_ALLOC_V4_BACKPOINTERS_START,struct bch_alloc_v4, flags,  2,  8)

BITMASK(BCH_ALLOC_V4_NR_BACKPOINTERS,	struct bch_alloc_v4, flags,  8,  14)



#define KEY_TYPE_BUCKET_GENS_BITS	8

#define KEY_TYPE_BUCKET_GENS_NR		(1U << KEY_TYPE_BUCKET_GENS_BITS)

#define KEY_TYPE_BUCKET_GENS_MASK	(KEY_TYPE_BUCKET_GENS_NR - 1)



struct bch_bucket_gens {

	struct bch_val		v;

	u8			gens[KEY_TYPE_BUCKET_GENS_NR];

} __packed __aligned(8);



#endif /* _BCACHEFS_ALLOC_BACKGROUND_FORMAT_H */

fs/bcachefs/bcachefs_format.h

+2 −93
Original line number Diff line number Diff line
@@ -710,89 +710,6 @@ struct bch_reservation { 
#define BKEY_BTREE_PTR_U64s_MAX					\

	(BKEY_U64s + BKEY_BTREE_PTR_VAL_U64s_MAX)





/* Bucket/allocation information: */



struct bch_alloc {

	struct bch_val		v;

	__u8			fields;

	__u8			gen;

	__u8			data[];

} __packed __aligned(8);



#define BCH_ALLOC_FIELDS_V1()			\

	x(read_time,		16)		\

	x(write_time,		16)		\

	x(data_type,		8)		\

	x(dirty_sectors,	16)		\

	x(cached_sectors,	16)		\

	x(oldest_gen,		8)		\

	x(stripe,		32)		\

	x(stripe_redundancy,	8)



enum {

#define x(name, _bits) BCH_ALLOC_FIELD_V1_##name,

	BCH_ALLOC_FIELDS_V1()

#undef x

};



struct bch_alloc_v2 {

	struct bch_val		v;

	__u8			nr_fields;

	__u8			gen;

	__u8			oldest_gen;

	__u8			data_type;

	__u8			data[];

} __packed __aligned(8);



#define BCH_ALLOC_FIELDS_V2()			\

	x(read_time,		64)		\

	x(write_time,		64)		\

	x(dirty_sectors,	32)		\

	x(cached_sectors,	32)		\

	x(stripe,		32)		\

	x(stripe_redundancy,	8)



struct bch_alloc_v3 {

	struct bch_val		v;

	__le64			journal_seq;

	__le32			flags;

	__u8			nr_fields;

	__u8			gen;

	__u8			oldest_gen;

	__u8			data_type;

	__u8			data[];

} __packed __aligned(8);



LE32_BITMASK(BCH_ALLOC_V3_NEED_DISCARD,struct bch_alloc_v3, flags,  0,  1)

LE32_BITMASK(BCH_ALLOC_V3_NEED_INC_GEN,struct bch_alloc_v3, flags,  1,  2)



struct bch_alloc_v4 {

	struct bch_val		v;

	__u64			journal_seq;

	__u32			flags;

	__u8			gen;

	__u8			oldest_gen;

	__u8			data_type;

	__u8			stripe_redundancy;

	__u32			dirty_sectors;

	__u32			cached_sectors;

	__u64			io_time[2];

	__u32			stripe;

	__u32			nr_external_backpointers;

	__u64			fragmentation_lru;

} __packed __aligned(8);



#define BCH_ALLOC_V4_U64s_V0	6

#define BCH_ALLOC_V4_U64s	(sizeof(struct bch_alloc_v4) / sizeof(__u64))



BITMASK(BCH_ALLOC_V4_NEED_DISCARD,	struct bch_alloc_v4, flags,  0,  1)

BITMASK(BCH_ALLOC_V4_NEED_INC_GEN,	struct bch_alloc_v4, flags,  1,  2)

BITMASK(BCH_ALLOC_V4_BACKPOINTERS_START,struct bch_alloc_v4, flags,  2,  8)

BITMASK(BCH_ALLOC_V4_NR_BACKPOINTERS,	struct bch_alloc_v4, flags,  8,  14)



#define BCH_ALLOC_V4_NR_BACKPOINTERS_MAX	40



struct bch_backpointer {

	struct bch_val		v;

	__u8			btree_id;
@@ -803,15 +720,6 @@ struct bch_backpointer { 
	struct bpos		pos;

} __packed __aligned(8);



#define KEY_TYPE_BUCKET_GENS_BITS	8

#define KEY_TYPE_BUCKET_GENS_NR		(1U << KEY_TYPE_BUCKET_GENS_BITS)

#define KEY_TYPE_BUCKET_GENS_MASK	(KEY_TYPE_BUCKET_GENS_NR - 1)



struct bch_bucket_gens {

	struct bch_val		v;

	u8			gens[KEY_TYPE_BUCKET_GENS_NR];

} __packed __aligned(8);



/* Erasure coding */



struct bch_stripe {
@@ -991,8 +899,9 @@ struct bch_sb_field { 
	x(ext,				13)	\

	x(downgrade,			14)



#include "dirent_format.h"

#include "alloc_background_format.h"

#include "inode_format.h"

#include "dirent_format.h"

#include "xattr_format.h"

#include "quota_format.h"

#include "sb-counters_format.h"