2017-03-17 06:18:50 +00:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
#ifndef _BCACHEFS_BKEY_H
|
|
|
|
#define _BCACHEFS_BKEY_H
|
|
|
|
|
|
|
|
#include <linux/bug.h>
|
|
|
|
#include "bcachefs_format.h"
|
|
|
|
|
|
|
|
#include "util.h"
|
|
|
|
#include "vstructs.h"
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
|
|
/*
|
|
|
|
* compiled unpack functions are disabled, pending a new interface for
|
|
|
|
* dynamically allocating executable memory:
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifdef CONFIG_X86_64
|
|
|
|
#define HAVE_BCACHEFS_COMPILED_UNPACK 1
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
|
|
|
|
void bch2_to_binary(char *, const u64 *, unsigned);
|
|
|
|
|
|
|
|
/* bkey with split value, const */
|
|
|
|
struct bkey_s_c {
|
|
|
|
const struct bkey *k;
|
|
|
|
const struct bch_val *v;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* bkey with split value */
|
|
|
|
struct bkey_s {
|
|
|
|
union {
|
|
|
|
struct {
|
|
|
|
struct bkey *k;
|
|
|
|
struct bch_val *v;
|
|
|
|
};
|
|
|
|
struct bkey_s_c s_c;
|
|
|
|
};
|
|
|
|
};
|
|
|
|
|
|
|
|
#define bkey_next(_k) vstruct_next(_k)
|
|
|
|
|
2019-11-10 04:50:52 +00:00
|
|
|
static inline struct bkey_packed *bkey_next_skip_noops(struct bkey_packed *k,
|
|
|
|
struct bkey_packed *end)
|
|
|
|
{
|
|
|
|
k = bkey_next(k);
|
|
|
|
|
|
|
|
while (k != end && !k->u64s)
|
|
|
|
k = (void *) ((u64 *) k + 1);
|
|
|
|
return k;
|
|
|
|
}
|
|
|
|
|
2019-05-30 00:06:06 +00:00
|
|
|
#define bkey_val_u64s(_k) ((_k)->u64s - BKEY_U64s)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
static inline size_t bkey_val_bytes(const struct bkey *k)
|
|
|
|
{
|
|
|
|
return bkey_val_u64s(k) * sizeof(u64);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void set_bkey_val_u64s(struct bkey *k, unsigned val_u64s)
|
|
|
|
{
|
|
|
|
k->u64s = BKEY_U64s + val_u64s;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void set_bkey_val_bytes(struct bkey *k, unsigned bytes)
|
|
|
|
{
|
|
|
|
k->u64s = BKEY_U64s + DIV_ROUND_UP(bytes, sizeof(u64));
|
|
|
|
}
|
|
|
|
|
2019-07-25 17:52:14 +00:00
|
|
|
#define bkey_val_end(_k) ((void *) (((u64 *) (_k).v) + bkey_val_u64s((_k).k)))
|
2018-11-01 19:10:01 +00:00
|
|
|
|
|
|
|
#define bkey_deleted(_k) ((_k)->type == KEY_TYPE_deleted)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
#define bkey_whiteout(_k) \
|
2018-11-01 19:10:01 +00:00
|
|
|
((_k)->type == KEY_TYPE_deleted || (_k)->type == KEY_TYPE_discard)
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
enum bkey_lr_packed {
|
|
|
|
BKEY_PACKED_BOTH,
|
|
|
|
BKEY_PACKED_RIGHT,
|
|
|
|
BKEY_PACKED_LEFT,
|
|
|
|
BKEY_PACKED_NONE,
|
|
|
|
};
|
|
|
|
|
|
|
|
#define bkey_lr_packed(_l, _r) \
|
|
|
|
((_l)->format + ((_r)->format << 1))
|
|
|
|
|
|
|
|
#define bkey_copy(_dst, _src) \
|
|
|
|
do { \
|
|
|
|
BUILD_BUG_ON(!type_is(_dst, struct bkey_i *) && \
|
|
|
|
!type_is(_dst, struct bkey_packed *)); \
|
|
|
|
BUILD_BUG_ON(!type_is(_src, struct bkey_i *) && \
|
|
|
|
!type_is(_src, struct bkey_packed *)); \
|
|
|
|
EBUG_ON((u64 *) (_dst) > (u64 *) (_src) && \
|
|
|
|
(u64 *) (_dst) < (u64 *) (_src) + \
|
|
|
|
((struct bkey *) (_src))->u64s); \
|
|
|
|
\
|
2019-10-22 21:35:35 +00:00
|
|
|
memcpy_u64s_small((_dst), (_src), \
|
|
|
|
((struct bkey *) (_src))->u64s); \
|
2017-03-17 06:18:50 +00:00
|
|
|
} while (0)
|
|
|
|
|
|
|
|
struct btree;
|
|
|
|
|
|
|
|
struct bkey_format_state {
|
|
|
|
u64 field_min[BKEY_NR_FIELDS];
|
|
|
|
u64 field_max[BKEY_NR_FIELDS];
|
|
|
|
};
|
|
|
|
|
|
|
|
void bch2_bkey_format_init(struct bkey_format_state *);
|
|
|
|
void bch2_bkey_format_add_key(struct bkey_format_state *, const struct bkey *);
|
|
|
|
void bch2_bkey_format_add_pos(struct bkey_format_state *, struct bpos);
|
|
|
|
struct bkey_format bch2_bkey_format_done(struct bkey_format_state *);
|
|
|
|
const char *bch2_bkey_format_validate(struct bkey_format *);
|
|
|
|
|
|
|
|
__pure
|
|
|
|
unsigned bch2_bkey_greatest_differing_bit(const struct btree *,
|
|
|
|
const struct bkey_packed *,
|
|
|
|
const struct bkey_packed *);
|
|
|
|
__pure
|
|
|
|
unsigned bch2_bkey_ffs(const struct btree *, const struct bkey_packed *);
|
|
|
|
|
|
|
|
__pure
|
|
|
|
int __bch2_bkey_cmp_packed_format_checked(const struct bkey_packed *,
|
|
|
|
const struct bkey_packed *,
|
|
|
|
const struct btree *);
|
|
|
|
|
|
|
|
__pure
|
|
|
|
int __bch2_bkey_cmp_left_packed_format_checked(const struct btree *,
|
|
|
|
const struct bkey_packed *,
|
|
|
|
const struct bpos *);
|
|
|
|
|
|
|
|
__pure
|
2020-11-07 17:31:20 +00:00
|
|
|
int bch2_bkey_cmp_packed(const struct btree *,
|
|
|
|
const struct bkey_packed *,
|
|
|
|
const struct bkey_packed *);
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
__pure
|
|
|
|
int __bch2_bkey_cmp_left_packed(const struct btree *,
|
|
|
|
const struct bkey_packed *,
|
|
|
|
const struct bpos *);
|
|
|
|
|
|
|
|
static inline __pure
|
|
|
|
int bkey_cmp_left_packed(const struct btree *b,
|
|
|
|
const struct bkey_packed *l, const struct bpos *r)
|
|
|
|
{
|
|
|
|
return __bch2_bkey_cmp_left_packed(b, l, r);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* we prefer to pass bpos by ref, but it's often enough terribly convenient to
|
|
|
|
* pass it by by val... as much as I hate c++, const ref would be nice here:
|
|
|
|
*/
|
|
|
|
__pure __flatten
|
|
|
|
static inline int bkey_cmp_left_packed_byval(const struct btree *b,
|
|
|
|
const struct bkey_packed *l,
|
|
|
|
struct bpos r)
|
|
|
|
{
|
|
|
|
return bkey_cmp_left_packed(b, l, &r);
|
|
|
|
}
|
|
|
|
|
|
|
|
#if 1
|
|
|
|
static __always_inline int bkey_cmp(struct bpos l, struct bpos r)
|
|
|
|
{
|
|
|
|
if (l.inode != r.inode)
|
|
|
|
return l.inode < r.inode ? -1 : 1;
|
|
|
|
if (l.offset != r.offset)
|
|
|
|
return l.offset < r.offset ? -1 : 1;
|
|
|
|
if (l.snapshot != r.snapshot)
|
|
|
|
return l.snapshot < r.snapshot ? -1 : 1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
int bkey_cmp(struct bpos l, struct bpos r);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static inline struct bpos bpos_min(struct bpos l, struct bpos r)
|
|
|
|
{
|
|
|
|
return bkey_cmp(l, r) < 0 ? l : r;
|
|
|
|
}
|
|
|
|
|
|
|
|
void bch2_bpos_swab(struct bpos *);
|
|
|
|
void bch2_bkey_swab_key(const struct bkey_format *, struct bkey_packed *);
|
|
|
|
|
|
|
|
static __always_inline int bversion_cmp(struct bversion l, struct bversion r)
|
|
|
|
{
|
2019-04-12 08:54:12 +00:00
|
|
|
return cmp_int(l.hi, r.hi) ?:
|
|
|
|
cmp_int(l.lo, r.lo);
|
2017-03-17 06:18:50 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#define ZERO_VERSION ((struct bversion) { .hi = 0, .lo = 0 })
|
|
|
|
#define MAX_VERSION ((struct bversion) { .hi = ~0, .lo = ~0ULL })
|
|
|
|
|
|
|
|
static __always_inline int bversion_zero(struct bversion v)
|
|
|
|
{
|
|
|
|
return !bversion_cmp(v, ZERO_VERSION);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_BCACHEFS_DEBUG
|
|
|
|
/* statement expressions confusing unlikely()? */
|
|
|
|
#define bkey_packed(_k) \
|
|
|
|
({ EBUG_ON((_k)->format > KEY_FORMAT_CURRENT); \
|
|
|
|
(_k)->format != KEY_FORMAT_CURRENT; })
|
|
|
|
#else
|
|
|
|
#define bkey_packed(_k) ((_k)->format != KEY_FORMAT_CURRENT)
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
|
|
* It's safe to treat an unpacked bkey as a packed one, but not the reverse
|
|
|
|
*/
|
|
|
|
static inline struct bkey_packed *bkey_to_packed(struct bkey_i *k)
|
|
|
|
{
|
|
|
|
return (struct bkey_packed *) k;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline const struct bkey_packed *bkey_to_packed_c(const struct bkey_i *k)
|
|
|
|
{
|
|
|
|
return (const struct bkey_packed *) k;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct bkey_i *packed_to_bkey(struct bkey_packed *k)
|
|
|
|
{
|
|
|
|
return bkey_packed(k) ? NULL : (struct bkey_i *) k;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline const struct bkey *packed_to_bkey_c(const struct bkey_packed *k)
|
|
|
|
{
|
|
|
|
return bkey_packed(k) ? NULL : (const struct bkey *) k;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned bkey_format_key_bits(const struct bkey_format *format)
|
|
|
|
{
|
|
|
|
return format->bits_per_field[BKEY_FIELD_INODE] +
|
|
|
|
format->bits_per_field[BKEY_FIELD_OFFSET] +
|
|
|
|
format->bits_per_field[BKEY_FIELD_SNAPSHOT];
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct bpos bkey_successor(struct bpos p)
|
|
|
|
{
|
|
|
|
struct bpos ret = p;
|
|
|
|
|
|
|
|
if (!++ret.offset)
|
|
|
|
BUG_ON(!++ret.inode);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct bpos bkey_predecessor(struct bpos p)
|
|
|
|
{
|
|
|
|
struct bpos ret = p;
|
|
|
|
|
|
|
|
if (!ret.offset--)
|
|
|
|
BUG_ON(!ret.inode--);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline u64 bkey_start_offset(const struct bkey *k)
|
|
|
|
{
|
|
|
|
return k->p.offset - k->size;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct bpos bkey_start_pos(const struct bkey *k)
|
|
|
|
{
|
|
|
|
return (struct bpos) {
|
|
|
|
.inode = k->p.inode,
|
|
|
|
.offset = bkey_start_offset(k),
|
|
|
|
.snapshot = k->p.snapshot,
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Packed helpers */
|
|
|
|
|
|
|
|
static inline unsigned bkeyp_key_u64s(const struct bkey_format *format,
|
|
|
|
const struct bkey_packed *k)
|
|
|
|
{
|
|
|
|
unsigned ret = bkey_packed(k) ? format->key_u64s : BKEY_U64s;
|
|
|
|
|
|
|
|
EBUG_ON(k->u64s < ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned bkeyp_key_bytes(const struct bkey_format *format,
|
|
|
|
const struct bkey_packed *k)
|
|
|
|
{
|
|
|
|
return bkeyp_key_u64s(format, k) * sizeof(u64);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned bkeyp_val_u64s(const struct bkey_format *format,
|
|
|
|
const struct bkey_packed *k)
|
|
|
|
{
|
|
|
|
return k->u64s - bkeyp_key_u64s(format, k);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline size_t bkeyp_val_bytes(const struct bkey_format *format,
|
|
|
|
const struct bkey_packed *k)
|
|
|
|
{
|
|
|
|
return bkeyp_val_u64s(format, k) * sizeof(u64);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void set_bkeyp_val_u64s(const struct bkey_format *format,
|
|
|
|
struct bkey_packed *k, unsigned val_u64s)
|
|
|
|
{
|
|
|
|
k->u64s = bkeyp_key_u64s(format, k) + val_u64s;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define bkeyp_val(_format, _k) \
|
|
|
|
((struct bch_val *) ((_k)->_data + bkeyp_key_u64s(_format, _k)))
|
|
|
|
|
|
|
|
extern const struct bkey_format bch2_bkey_format_current;
|
|
|
|
|
|
|
|
bool bch2_bkey_transform(const struct bkey_format *,
|
|
|
|
struct bkey_packed *,
|
|
|
|
const struct bkey_format *,
|
|
|
|
const struct bkey_packed *);
|
|
|
|
|
|
|
|
struct bkey __bch2_bkey_unpack_key(const struct bkey_format *,
|
|
|
|
const struct bkey_packed *);
|
|
|
|
|
|
|
|
#ifndef HAVE_BCACHEFS_COMPILED_UNPACK
|
|
|
|
struct bpos __bkey_unpack_pos(const struct bkey_format *,
|
|
|
|
const struct bkey_packed *);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
bool bch2_bkey_pack_key(struct bkey_packed *, const struct bkey *,
|
|
|
|
const struct bkey_format *);
|
|
|
|
|
|
|
|
enum bkey_pack_pos_ret {
|
|
|
|
BKEY_PACK_POS_EXACT,
|
|
|
|
BKEY_PACK_POS_SMALLER,
|
|
|
|
BKEY_PACK_POS_FAIL,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum bkey_pack_pos_ret bch2_bkey_pack_pos_lossy(struct bkey_packed *, struct bpos,
|
|
|
|
const struct btree *);
|
|
|
|
|
|
|
|
static inline bool bkey_pack_pos(struct bkey_packed *out, struct bpos in,
|
|
|
|
const struct btree *b)
|
|
|
|
{
|
|
|
|
return bch2_bkey_pack_pos_lossy(out, in, b) == BKEY_PACK_POS_EXACT;
|
|
|
|
}
|
|
|
|
|
|
|
|
void bch2_bkey_unpack(const struct btree *, struct bkey_i *,
|
|
|
|
const struct bkey_packed *);
|
|
|
|
bool bch2_bkey_pack(struct bkey_packed *, const struct bkey_i *,
|
|
|
|
const struct bkey_format *);
|
|
|
|
|
|
|
|
static inline u64 bkey_field_max(const struct bkey_format *f,
|
|
|
|
enum bch_bkey_fields nr)
|
|
|
|
{
|
|
|
|
return f->bits_per_field[nr] < 64
|
|
|
|
? (le64_to_cpu(f->field_offset[nr]) +
|
|
|
|
~(~0ULL << f->bits_per_field[nr]))
|
|
|
|
: U64_MAX;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef HAVE_BCACHEFS_COMPILED_UNPACK
|
|
|
|
|
|
|
|
int bch2_compile_bkey_format(const struct bkey_format *, void *);
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
static inline int bch2_compile_bkey_format(const struct bkey_format *format,
|
|
|
|
void *out) { return 0; }
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static inline void bkey_reassemble(struct bkey_i *dst,
|
|
|
|
struct bkey_s_c src)
|
|
|
|
{
|
|
|
|
dst->k = *src.k;
|
2020-03-24 21:00:48 +00:00
|
|
|
memcpy_u64s_small(&dst->v, src.v, bkey_val_u64s(src.k));
|
2017-03-17 06:18:50 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#define bkey_s_null ((struct bkey_s) { .k = NULL })
|
|
|
|
#define bkey_s_c_null ((struct bkey_s_c) { .k = NULL })
|
|
|
|
|
|
|
|
#define bkey_s_err(err) ((struct bkey_s) { .k = ERR_PTR(err) })
|
|
|
|
#define bkey_s_c_err(err) ((struct bkey_s_c) { .k = ERR_PTR(err) })
|
|
|
|
|
|
|
|
static inline struct bkey_s bkey_to_s(struct bkey *k)
|
|
|
|
{
|
|
|
|
return (struct bkey_s) { .k = k, .v = NULL };
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct bkey_s_c bkey_to_s_c(const struct bkey *k)
|
|
|
|
{
|
|
|
|
return (struct bkey_s_c) { .k = k, .v = NULL };
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct bkey_s bkey_i_to_s(struct bkey_i *k)
|
|
|
|
{
|
|
|
|
return (struct bkey_s) { .k = &k->k, .v = &k->v };
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct bkey_s_c bkey_i_to_s_c(const struct bkey_i *k)
|
|
|
|
{
|
|
|
|
return (struct bkey_s_c) { .k = &k->k, .v = &k->v };
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* For a given type of value (e.g. struct bch_extent), generates the types for
|
|
|
|
* bkey + bch_extent - inline, split, split const - and also all the conversion
|
|
|
|
* functions, which also check that the value is of the correct type.
|
|
|
|
*
|
|
|
|
* We use anonymous unions for upcasting - e.g. converting from e.g. a
|
|
|
|
* bkey_i_extent to a bkey_i - since that's always safe, instead of conversion
|
|
|
|
* functions.
|
|
|
|
*/
|
2018-11-01 19:10:01 +00:00
|
|
|
#define BKEY_VAL_ACCESSORS(name) \
|
|
|
|
struct bkey_i_##name { \
|
|
|
|
union { \
|
|
|
|
struct bkey k; \
|
|
|
|
struct bkey_i k_i; \
|
|
|
|
}; \
|
|
|
|
struct bch_##name v; \
|
|
|
|
}; \
|
|
|
|
\
|
2017-03-17 06:18:50 +00:00
|
|
|
struct bkey_s_c_##name { \
|
|
|
|
union { \
|
|
|
|
struct { \
|
|
|
|
const struct bkey *k; \
|
|
|
|
const struct bch_##name *v; \
|
|
|
|
}; \
|
|
|
|
struct bkey_s_c s_c; \
|
|
|
|
}; \
|
|
|
|
}; \
|
|
|
|
\
|
|
|
|
struct bkey_s_##name { \
|
|
|
|
union { \
|
|
|
|
struct { \
|
|
|
|
struct bkey *k; \
|
|
|
|
struct bch_##name *v; \
|
|
|
|
}; \
|
|
|
|
struct bkey_s_c_##name c; \
|
|
|
|
struct bkey_s s; \
|
|
|
|
struct bkey_s_c s_c; \
|
|
|
|
}; \
|
|
|
|
}; \
|
|
|
|
\
|
|
|
|
static inline struct bkey_i_##name *bkey_i_to_##name(struct bkey_i *k) \
|
|
|
|
{ \
|
2018-11-01 19:10:01 +00:00
|
|
|
EBUG_ON(k->k.type != KEY_TYPE_##name); \
|
2017-03-17 06:18:50 +00:00
|
|
|
return container_of(&k->k, struct bkey_i_##name, k); \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline const struct bkey_i_##name * \
|
|
|
|
bkey_i_to_##name##_c(const struct bkey_i *k) \
|
|
|
|
{ \
|
2018-11-01 19:10:01 +00:00
|
|
|
EBUG_ON(k->k.type != KEY_TYPE_##name); \
|
2017-03-17 06:18:50 +00:00
|
|
|
return container_of(&k->k, struct bkey_i_##name, k); \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline struct bkey_s_##name bkey_s_to_##name(struct bkey_s k) \
|
|
|
|
{ \
|
2018-11-01 19:10:01 +00:00
|
|
|
EBUG_ON(k.k->type != KEY_TYPE_##name); \
|
2017-03-17 06:18:50 +00:00
|
|
|
return (struct bkey_s_##name) { \
|
|
|
|
.k = k.k, \
|
|
|
|
.v = container_of(k.v, struct bch_##name, v), \
|
|
|
|
}; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline struct bkey_s_c_##name bkey_s_c_to_##name(struct bkey_s_c k)\
|
|
|
|
{ \
|
2018-11-01 19:10:01 +00:00
|
|
|
EBUG_ON(k.k->type != KEY_TYPE_##name); \
|
2017-03-17 06:18:50 +00:00
|
|
|
return (struct bkey_s_c_##name) { \
|
|
|
|
.k = k.k, \
|
|
|
|
.v = container_of(k.v, struct bch_##name, v), \
|
|
|
|
}; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline struct bkey_s_##name name##_i_to_s(struct bkey_i_##name *k)\
|
|
|
|
{ \
|
|
|
|
return (struct bkey_s_##name) { \
|
|
|
|
.k = &k->k, \
|
|
|
|
.v = &k->v, \
|
|
|
|
}; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline struct bkey_s_c_##name \
|
|
|
|
name##_i_to_s_c(const struct bkey_i_##name *k) \
|
|
|
|
{ \
|
|
|
|
return (struct bkey_s_c_##name) { \
|
|
|
|
.k = &k->k, \
|
|
|
|
.v = &k->v, \
|
|
|
|
}; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline struct bkey_s_##name bkey_i_to_s_##name(struct bkey_i *k) \
|
|
|
|
{ \
|
2018-11-01 19:10:01 +00:00
|
|
|
EBUG_ON(k->k.type != KEY_TYPE_##name); \
|
2017-03-17 06:18:50 +00:00
|
|
|
return (struct bkey_s_##name) { \
|
|
|
|
.k = &k->k, \
|
|
|
|
.v = container_of(&k->v, struct bch_##name, v), \
|
|
|
|
}; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline struct bkey_s_c_##name \
|
|
|
|
bkey_i_to_s_c_##name(const struct bkey_i *k) \
|
|
|
|
{ \
|
2018-11-01 19:10:01 +00:00
|
|
|
EBUG_ON(k->k.type != KEY_TYPE_##name); \
|
2017-03-17 06:18:50 +00:00
|
|
|
return (struct bkey_s_c_##name) { \
|
|
|
|
.k = &k->k, \
|
|
|
|
.v = container_of(&k->v, struct bch_##name, v), \
|
|
|
|
}; \
|
|
|
|
} \
|
|
|
|
\
|
|
|
|
static inline struct bkey_i_##name *bkey_##name##_init(struct bkey_i *_k)\
|
|
|
|
{ \
|
|
|
|
struct bkey_i_##name *k = \
|
|
|
|
container_of(&_k->k, struct bkey_i_##name, k); \
|
|
|
|
\
|
|
|
|
bkey_init(&k->k); \
|
|
|
|
memset(&k->v, 0, sizeof(k->v)); \
|
2018-11-01 19:10:01 +00:00
|
|
|
k->k.type = KEY_TYPE_##name; \
|
2017-03-17 06:18:50 +00:00
|
|
|
set_bkey_val_bytes(&k->k, sizeof(k->v)); \
|
|
|
|
\
|
|
|
|
return k; \
|
|
|
|
}
|
|
|
|
|
2018-11-01 19:10:01 +00:00
|
|
|
BKEY_VAL_ACCESSORS(cookie);
|
|
|
|
BKEY_VAL_ACCESSORS(btree_ptr);
|
|
|
|
BKEY_VAL_ACCESSORS(extent);
|
|
|
|
BKEY_VAL_ACCESSORS(reservation);
|
|
|
|
BKEY_VAL_ACCESSORS(inode);
|
|
|
|
BKEY_VAL_ACCESSORS(inode_generation);
|
|
|
|
BKEY_VAL_ACCESSORS(dirent);
|
|
|
|
BKEY_VAL_ACCESSORS(xattr);
|
|
|
|
BKEY_VAL_ACCESSORS(alloc);
|
|
|
|
BKEY_VAL_ACCESSORS(quota);
|
|
|
|
BKEY_VAL_ACCESSORS(stripe);
|
2019-08-16 13:59:56 +00:00
|
|
|
BKEY_VAL_ACCESSORS(reflink_p);
|
|
|
|
BKEY_VAL_ACCESSORS(reflink_v);
|
2019-11-09 21:43:16 +00:00
|
|
|
BKEY_VAL_ACCESSORS(inline_data);
|
2020-02-07 18:38:02 +00:00
|
|
|
BKEY_VAL_ACCESSORS(btree_ptr_v2);
|
2020-10-24 23:51:34 +00:00
|
|
|
BKEY_VAL_ACCESSORS(indirect_inline_data);
|
2018-11-01 19:13:19 +00:00
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
/* byte order helpers */
|
|
|
|
|
|
|
|
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
|
|
|
|
|
|
|
|
static inline unsigned high_word_offset(const struct bkey_format *f)
|
|
|
|
{
|
|
|
|
return f->key_u64s - 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define high_bit_offset 0
|
|
|
|
#define nth_word(p, n) ((p) - (n))
|
|
|
|
|
|
|
|
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
|
|
|
|
|
|
|
|
static inline unsigned high_word_offset(const struct bkey_format *f)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define high_bit_offset KEY_PACKED_BITS_START
|
|
|
|
#define nth_word(p, n) ((p) + (n))
|
|
|
|
|
|
|
|
#else
|
|
|
|
#error edit for your odd byteorder.
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#define high_word(f, k) ((k)->_data + high_word_offset(f))
|
|
|
|
#define next_word(p) nth_word(p, 1)
|
|
|
|
#define prev_word(p) nth_word(p, -1)
|
|
|
|
|
|
|
|
#ifdef CONFIG_BCACHEFS_DEBUG
|
|
|
|
void bch2_bkey_pack_test(void);
|
|
|
|
#else
|
|
|
|
static inline void bch2_bkey_pack_test(void) {}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#endif /* _BCACHEFS_BKEY_H */
|