git.sesse.net Git - bcachefs-tools-debian/blob - libbcachefs/reflink.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_REFLINK_H
   3 #define _BCACHEFS_REFLINK_H
   4
   5 const char *bch2_reflink_p_invalid(const struct bch_fs *, struct bkey_s_c);
   6 void bch2_reflink_p_to_text(struct printbuf *, struct bch_fs *,
   7                             struct bkey_s_c);
   8 enum merge_result bch2_reflink_p_merge(struct bch_fs *,
   9                                        struct bkey_s, struct bkey_s);
  10
  11 #define bch2_bkey_ops_reflink_p (struct bkey_ops) {             \
  12         .key_invalid    = bch2_reflink_p_invalid,               \
  13         .val_to_text    = bch2_reflink_p_to_text,               \
  14         .key_merge      = bch2_reflink_p_merge,         \
  15 }
  16
  17 const char *bch2_reflink_v_invalid(const struct bch_fs *, struct bkey_s_c);
  18 void bch2_reflink_v_to_text(struct printbuf *, struct bch_fs *,
  19                             struct bkey_s_c);
  20
  21 #define bch2_bkey_ops_reflink_v (struct bkey_ops) {             \
  22         .key_invalid    = bch2_reflink_v_invalid,               \
  23         .val_to_text    = bch2_reflink_v_to_text,               \
  24         .swab           = bch2_ptr_swab,                        \
  25 }
  26
  27 const char *bch2_indirect_inline_data_invalid(const struct bch_fs *,
  28                                               struct bkey_s_c);
  29 void bch2_indirect_inline_data_to_text(struct printbuf *,
  30                                 struct bch_fs *, struct bkey_s_c);
  31
  32 #define bch2_bkey_ops_indirect_inline_data (struct bkey_ops) {  \
  33         .key_invalid    = bch2_indirect_inline_data_invalid,    \
  34         .val_to_text    = bch2_indirect_inline_data_to_text,    \
  35 }
  36
  37 static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
  38 {
  39         switch (k.k->type) {
  40         case KEY_TYPE_reflink_v:
  41                 return &bkey_s_c_to_reflink_v(k).v->refcount;
  42         case KEY_TYPE_indirect_inline_data:
  43                 return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
  44         default:
  45                 return NULL;
  46         }
  47 }
  48
  49 static inline __le64 *bkey_refcount(struct bkey_i *k)
  50 {
  51         switch (k->k.type) {
  52         case KEY_TYPE_reflink_v:
  53                 return &bkey_i_to_reflink_v(k)->v.refcount;
  54         case KEY_TYPE_indirect_inline_data:
  55                 return &bkey_i_to_indirect_inline_data(k)->v.refcount;
  56         default:
  57                 return NULL;
  58         }
  59 }
  60
  61 s64 bch2_remap_range(struct bch_fs *, struct bpos, struct bpos,
  62                      u64, u64 *, u64, s64 *);
  63
  64 #endif /* _BCACHEFS_REFLINK_H */