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 int bch2_reflink_p_invalid(const struct bch_fs *, struct bkey_s_c,
   6                            unsigned, struct printbuf *);
   7 void bch2_reflink_p_to_text(struct printbuf *, struct bch_fs *,
   8                             struct bkey_s_c);
   9 bool bch2_reflink_p_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);
  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         .trans_trigger  = bch2_trans_mark_reflink_p,            \
  16         .atomic_trigger = bch2_mark_reflink_p,                  \
  17         .min_val_size   = 16,                                   \
  18 })
  19
  20 int bch2_reflink_v_invalid(const struct bch_fs *, struct bkey_s_c,
  21                            unsigned, struct printbuf *);
  22 void bch2_reflink_v_to_text(struct printbuf *, struct bch_fs *,
  23                             struct bkey_s_c);
  24 int bch2_trans_mark_reflink_v(struct btree_trans *, enum btree_id, unsigned,
  25                               struct bkey_s_c, struct bkey_i *, unsigned);
  26
  27 #define bch2_bkey_ops_reflink_v ((struct bkey_ops) {            \
  28         .key_invalid    = bch2_reflink_v_invalid,               \
  29         .val_to_text    = bch2_reflink_v_to_text,               \
  30         .swab           = bch2_ptr_swab,                        \
  31         .trans_trigger  = bch2_trans_mark_reflink_v,            \
  32         .atomic_trigger = bch2_mark_extent,                     \
  33         .min_val_size   = 8,                                    \
  34 })
  35
  36 int bch2_indirect_inline_data_invalid(const struct bch_fs *, struct bkey_s_c,
  37                                       unsigned, struct printbuf *);
  38 void bch2_indirect_inline_data_to_text(struct printbuf *,
  39                                 struct bch_fs *, struct bkey_s_c);
  40 int bch2_trans_mark_indirect_inline_data(struct btree_trans *,
  41                                          enum btree_id, unsigned,
  42                               struct bkey_s_c, struct bkey_i *,
  43                               unsigned);
  44
  45 #define bch2_bkey_ops_indirect_inline_data ((struct bkey_ops) { \
  46         .key_invalid    = bch2_indirect_inline_data_invalid,    \
  47         .val_to_text    = bch2_indirect_inline_data_to_text,    \
  48         .trans_trigger  = bch2_trans_mark_indirect_inline_data, \
  49         .min_val_size   = 8,                                    \
  50 })
  51
  52 static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
  53 {
  54         switch (k.k->type) {
  55         case KEY_TYPE_reflink_v:
  56                 return &bkey_s_c_to_reflink_v(k).v->refcount;
  57         case KEY_TYPE_indirect_inline_data:
  58                 return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
  59         default:
  60                 return NULL;
  61         }
  62 }
  63
  64 static inline __le64 *bkey_refcount(struct bkey_i *k)
  65 {
  66         switch (k->k.type) {
  67         case KEY_TYPE_reflink_v:
  68                 return &bkey_i_to_reflink_v(k)->v.refcount;
  69         case KEY_TYPE_indirect_inline_data:
  70                 return &bkey_i_to_indirect_inline_data(k)->v.refcount;
  71         default:
  72                 return NULL;
  73         }
  74 }
  75
  76 s64 bch2_remap_range(struct bch_fs *, subvol_inum, u64,
  77                      subvol_inum, u64, u64, u64, s64 *);
  78
  79 #endif /* _BCACHEFS_REFLINK_H */