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