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-rw-r--r--fs/bcachefs/bkey.h211
1 files changed, 7 insertions, 204 deletions
diff --git a/fs/bcachefs/bkey.h b/fs/bcachefs/bkey.h
index 831be01809..3a45d128f6 100644
--- a/fs/bcachefs/bkey.h
+++ b/fs/bcachefs/bkey.h
@@ -4,7 +4,7 @@
#include <linux/bug.h>
#include "bcachefs_format.h"
-
+#include "bkey_types.h"
#include "btree_types.h"
#include "util.h"
#include "vstructs.h"
@@ -31,57 +31,6 @@ void bch2_bkey_packed_to_binary_text(struct printbuf *,
const struct bkey_format *,
const struct bkey_packed *);
-/* 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_p_next(_k) vstruct_next(_k)
-
-static inline struct bkey_i *bkey_next(struct bkey_i *k)
-{
- return (struct bkey_i *) ((u64 *) k->_data + k->k.u64s);
-}
-
-#define bkey_val_u64s(_k) ((_k)->u64s - BKEY_U64s)
-
-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)
-{
- unsigned u64s = BKEY_U64s + val_u64s;
-
- BUG_ON(u64s > U8_MAX);
- k->u64s = u64s;
-}
-
-static inline void set_bkey_val_bytes(struct bkey *k, unsigned bytes)
-{
- set_bkey_val_u64s(k, DIV_ROUND_UP(bytes, sizeof(u64)));
-}
-
-#define bkey_val_end(_k) ((void *) (((u64 *) (_k).v) + bkey_val_u64s((_k).k)))
-
-#define bkey_deleted(_k) ((_k)->type == KEY_TYPE_deleted)
-
-#define bkey_whiteout(_k) \
- ((_k)->type == KEY_TYPE_deleted || (_k)->type == KEY_TYPE_whiteout)
-
enum bkey_lr_packed {
BKEY_PACKED_BOTH,
BKEY_PACKED_RIGHT,
@@ -362,10 +311,13 @@ static inline struct bpos bkey_start_pos(const struct bkey *k)
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;
+ return bkey_packed(k) ? format->key_u64s : BKEY_U64s;
+}
- EBUG_ON(k->u64s < ret);
- return ret;
+static inline bool bkeyp_u64s_valid(const struct bkey_format *f,
+ const struct bkey_packed *k)
+{
+ return ((unsigned) k->u64s - bkeyp_key_u64s(f, k) <= U8_MAX - BKEY_U64s);
}
static inline unsigned bkeyp_key_bytes(const struct bkey_format *format,
@@ -553,155 +505,6 @@ static inline void bkey_reassemble(struct bkey_i *dst,
memcpy_u64s_small(&dst->v, src.v, bkey_val_u64s(src.k));
}
-#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.
- */
-#define x(name, ...) \
-struct bkey_i_##name { \
- union { \
- struct bkey k; \
- struct bkey_i k_i; \
- }; \
- struct bch_##name v; \
-}; \
- \
-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) \
-{ \
- EBUG_ON(!IS_ERR_OR_NULL(k) && k->k.type != KEY_TYPE_##name); \
- 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) \
-{ \
- EBUG_ON(!IS_ERR_OR_NULL(k) && k->k.type != KEY_TYPE_##name); \
- return container_of(&k->k, struct bkey_i_##name, k); \
-} \
- \
-static inline struct bkey_s_##name bkey_s_to_##name(struct bkey_s k) \
-{ \
- EBUG_ON(!IS_ERR_OR_NULL(k.k) && k.k->type != KEY_TYPE_##name); \
- 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)\
-{ \
- EBUG_ON(!IS_ERR_OR_NULL(k.k) && k.k->type != KEY_TYPE_##name); \
- 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) \
-{ \
- EBUG_ON(!IS_ERR_OR_NULL(k) && k->k.type != KEY_TYPE_##name); \
- 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) \
-{ \
- EBUG_ON(!IS_ERR_OR_NULL(k) && k->k.type != KEY_TYPE_##name); \
- 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)); \
- k->k.type = KEY_TYPE_##name; \
- set_bkey_val_bytes(&k->k, sizeof(k->v)); \
- \
- return k; \
-}
-
-BCH_BKEY_TYPES();
-#undef x
-
/* byte order helpers */
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 15:46:31 +0000