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         .trans_trigger  = bch2_trans_mark_reflink_p,            \
  15         .atomic_trigger = bch2_mark_reflink_p,                  \
  16 }
  17
  18 const char *bch2_reflink_v_invalid(const struct bch_fs *, struct bkey_s_c);
  19 void bch2_reflink_v_to_text(struct printbuf *, struct bch_fs *,
  20                             struct bkey_s_c);
  21 int bch2_trans_mark_reflink_v(struct btree_trans *, struct bkey_s_c,
  22                               struct bkey_i *, unsigned);
  23
  24 #define bch2_bkey_ops_reflink_v (struct bkey_ops) {             \
  25         .key_invalid    = bch2_reflink_v_invalid,               \
  26         .val_to_text    = bch2_reflink_v_to_text,               \
  27         .swab           = bch2_ptr_swab,                        \
  28         .trans_trigger  = bch2_trans_mark_reflink_v,            \
  29         .atomic_trigger = bch2_mark_extent,                     \
  30 }
  31
  32 const char *bch2_indirect_inline_data_invalid(const struct bch_fs *,
  33                                               struct bkey_s_c);
  34 void bch2_indirect_inline_data_to_text(struct printbuf *,
  35                                 struct bch_fs *, struct bkey_s_c);
  36 int bch2_trans_mark_indirect_inline_data(struct btree_trans *,
  37                               struct bkey_s_c, struct bkey_i *,
  38                               unsigned);
  39
  40 #define bch2_bkey_ops_indirect_inline_data (struct bkey_ops) {  \
  41         .key_invalid    = bch2_indirect_inline_data_invalid,    \
  42         .val_to_text    = bch2_indirect_inline_data_to_text,    \
  43         .trans_trigger  = bch2_trans_mark_indirect_inline_data, \
  44 }
  45
  46 static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
  47 {
  48         switch (k.k->type) {
  49         case KEY_TYPE_reflink_v:
  50                 return &bkey_s_c_to_reflink_v(k).v->refcount;
  51         case KEY_TYPE_indirect_inline_data:
  52                 return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
  53         default:
  54                 return NULL;
  55         }
  56 }
  57
  58 static inline __le64 *bkey_refcount(struct bkey_i *k)
  59 {
  60         switch (k->k.type) {
  61         case KEY_TYPE_reflink_v:
  62                 return &bkey_i_to_reflink_v(k)->v.refcount;
  63         case KEY_TYPE_indirect_inline_data:
  64                 return &bkey_i_to_indirect_inline_data(k)->v.refcount;
  65         default:
  66                 return NULL;
  67         }
  68 }
  69
  70 s64 bch2_remap_range(struct bch_fs *, subvol_inum, u64,
  71                      subvol_inum, u64, u64, u64, s64 *);
  72
  73 #endif /* _BCACHEFS_REFLINK_H */