Move c_src dirs back to toplevel

[bcachefs-tools-debian] / libbcachefs / bkey.h

diff --git a/libbcachefs/bkey.h b/libbcachefs/bkey.h
index 01687e48cdceceecad37a39b6747c44eaadfa25c..831be01809f2c9271d4db159377decd1b8686bb6 100644 (file)
--- a/libbcachefs/bkey.h
+++ b/libbcachefs/bkey.h
@@ -9,9 +9,23 @@
 #include "util.h"
 #include "vstructs.h"
 
+enum bkey_invalid_flags {
+       BKEY_INVALID_WRITE              = (1U << 0),
+       BKEY_INVALID_COMMIT             = (1U << 1),
+       BKEY_INVALID_JOURNAL            = (1U << 2),
+};
+
+#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_bkey_packed_to_binary_text(struct printbuf *,
                                     const struct bkey_format *,
@@ -34,7 +48,12 @@ struct bkey_s {
        };
 };
 
-#define bkey_next(_k)          vstruct_next(_k)
+#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)
 
@@ -73,19 +92,15 @@ enum bkey_lr_packed {
 #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);                \
-                                                               \
-       memcpy_u64s_small((_dst), (_src),                       \
-                         ((struct bkey *) (_src))->u64s);      \
-} while (0)
+static inline void bkey_p_copy(struct bkey_packed *dst, const struct bkey_packed *src)
+{
+       memcpy_u64s_small(dst, src, src->u64s);
+}
+
+static inline void bkey_copy(struct bkey_i *dst, const struct bkey_i *src)
+{
+       memcpy_u64s_small(dst, src, src->k.u64s);
+}
 
 struct btree;
 
@@ -378,7 +393,7 @@ static inline void set_bkeyp_val_u64s(const struct bkey_format *format,
 }
 
 #define bkeyp_val(_format, _k)                                         \
-        ((struct bch_val *) ((_k)->_data + bkeyp_key_u64s(_format, _k)))
+        ((struct bch_val *) ((u64 *) (_k)->_data + bkeyp_key_u64s(_format, _k)))
 
 extern const struct bkey_format bch2_bkey_format_current;
 
@@ -492,7 +507,7 @@ static inline struct bpos bkey_unpack_pos(const struct btree *b,
 
 /* Disassembled bkeys */
 
-static inline struct bkey_s_c bkey_disassemble(struct btree *b,
+static inline struct bkey_s_c bkey_disassemble(const struct btree *b,
                                               const struct bkey_packed *k,
                                               struct bkey *u)
 {
@@ -502,7 +517,7 @@ static inline struct bkey_s_c bkey_disassemble(struct btree *b,
 }
 
 /* non const version: */
-static inline struct bkey_s __bkey_disassemble(struct btree *b,
+static inline struct bkey_s __bkey_disassemble(const struct btree *b,
                                               struct bkey_packed *k,
                                               struct bkey *u)
 {
@@ -606,20 +621,20 @@ struct bkey_s_##name {                                                    \
                                                                        \
 static inline struct bkey_i_##name *bkey_i_to_##name(struct bkey_i *k) \
 {                                                                      \
-       EBUG_ON(k->k.type != KEY_TYPE_##name);                          \
+       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(k->k.type != KEY_TYPE_##name);                          \
+       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(k.k->type != KEY_TYPE_##name);                          \
+       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),           \
@@ -628,7 +643,7 @@ static inline struct bkey_s_##name bkey_s_to_##name(struct bkey_s k)        \
                                                                        \
 static inline struct bkey_s_c_##name bkey_s_c_to_##name(struct bkey_s_c k)\
 {                                                                      \
-       EBUG_ON(k.k->type != KEY_TYPE_##name);                          \
+       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),           \
@@ -654,7 +669,7 @@ name##_i_to_s_c(const struct bkey_i_##name *k)                              \
                                                                        \
 static inline struct bkey_s_##name bkey_i_to_s_##name(struct bkey_i *k)        \
 {                                                                      \
-       EBUG_ON(k->k.type != KEY_TYPE_##name);                          \
+       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),         \
@@ -664,7 +679,7 @@ static inline struct bkey_s_##name bkey_i_to_s_##name(struct bkey_i *k)     \
 static inline struct bkey_s_c_##name                                   \
 bkey_i_to_s_c_##name(const struct bkey_i *k)                           \
 {                                                                      \
-       EBUG_ON(k->k.type != KEY_TYPE_##name);                          \
+       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),         \
@@ -713,7 +728,7 @@ static inline unsigned high_word_offset(const struct bkey_format *f)
 #error edit for your odd byteorder.
 #endif
 
-#define high_word(f, k)                ((k)->_data + high_word_offset(f))
+#define high_word(f, k)                ((u64 *) (k)->_data + high_word_offset(f))
 #define next_word(p)           nth_word(p, 1)
 #define prev_word(p)           nth_word(p, -1)
 
@@ -752,11 +767,12 @@ static inline void bch2_bkey_format_add_key(struct bkey_format_state *s, const s
 #define x(id, field) __bkey_format_add(s, id, k->field);
        bkey_fields()
 #undef x
-       __bkey_format_add(s, BKEY_FIELD_OFFSET, bkey_start_offset(k));
 }
 
 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 *);
+int bch2_bkey_format_invalid(struct bch_fs *, struct bkey_format *,
+                            enum bkey_invalid_flags, struct printbuf *);
+void bch2_bkey_format_to_text(struct printbuf *, const struct bkey_format *);
 
 #endif /* _BCACHEFS_BKEY_H */