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 enum bkey_invalid_flags;
   6
   7 int bch2_reflink_p_invalid(struct bch_fs *, struct bkey_s_c,
   8                            enum bkey_invalid_flags, struct printbuf *);
   9 void bch2_reflink_p_to_text(struct printbuf *, struct bch_fs *,
  10                             struct bkey_s_c);
  11 bool bch2_reflink_p_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);
  12 int bch2_trans_mark_reflink_p(struct btree_trans *, enum btree_id, unsigned,
  13                               struct bkey_s_c, struct bkey_i *, unsigned);
  14 int bch2_mark_reflink_p(struct btree_trans *, enum btree_id, unsigned,
  15                         struct bkey_s_c, struct bkey_s_c, unsigned);
  16
  17 #define bch2_bkey_ops_reflink_p ((struct bkey_ops) {            \
  18         .key_invalid    = bch2_reflink_p_invalid,               \
  19         .val_to_text    = bch2_reflink_p_to_text,               \
  20         .key_merge      = bch2_reflink_p_merge,                 \
  21         .trans_trigger  = bch2_trans_mark_reflink_p,            \
  22         .atomic_trigger = bch2_mark_reflink_p,                  \
  23         .min_val_size   = 16,                                   \
  24 })
  25
  26 int bch2_reflink_v_invalid(struct bch_fs *, struct bkey_s_c,
  27                            enum bkey_invalid_flags, struct printbuf *);
  28 void bch2_reflink_v_to_text(struct printbuf *, struct bch_fs *,
  29                             struct bkey_s_c);
  30 int bch2_trans_mark_reflink_v(struct btree_trans *, enum btree_id, unsigned,
  31                               struct bkey_s_c, struct bkey_i *, unsigned);
  32
  33 #define bch2_bkey_ops_reflink_v ((struct bkey_ops) {            \
  34         .key_invalid    = bch2_reflink_v_invalid,               \
  35         .val_to_text    = bch2_reflink_v_to_text,               \
  36         .swab           = bch2_ptr_swab,                        \
  37         .trans_trigger  = bch2_trans_mark_reflink_v,            \
  38         .atomic_trigger = bch2_mark_extent,                     \
  39         .min_val_size   = 8,                                    \
  40 })
  41
  42 int bch2_indirect_inline_data_invalid(struct bch_fs *, struct bkey_s_c,
  43                                       enum bkey_invalid_flags, struct printbuf *);
  44 void bch2_indirect_inline_data_to_text(struct printbuf *,
  45                                 struct bch_fs *, struct bkey_s_c);
  46 int bch2_trans_mark_indirect_inline_data(struct btree_trans *,
  47                                          enum btree_id, unsigned,
  48                               struct bkey_s_c, struct bkey_i *,
  49                               unsigned);
  50
  51 #define bch2_bkey_ops_indirect_inline_data ((struct bkey_ops) { \
  52         .key_invalid    = bch2_indirect_inline_data_invalid,    \
  53         .val_to_text    = bch2_indirect_inline_data_to_text,    \
  54         .trans_trigger  = bch2_trans_mark_indirect_inline_data, \
  55         .min_val_size   = 8,                                    \
  56 })
  57
  58 static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
  59 {
  60         switch (k.k->type) {
  61         case KEY_TYPE_reflink_v:
  62                 return &bkey_s_c_to_reflink_v(k).v->refcount;
  63         case KEY_TYPE_indirect_inline_data:
  64                 return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
  65         default:
  66                 return NULL;
  67         }
  68 }
  69
  70 static inline __le64 *bkey_refcount(struct bkey_i *k)
  71 {
  72         switch (k->k.type) {
  73         case KEY_TYPE_reflink_v:
  74                 return &bkey_i_to_reflink_v(k)->v.refcount;
  75         case KEY_TYPE_indirect_inline_data:
  76                 return &bkey_i_to_indirect_inline_data(k)->v.refcount;
  77         default:
  78                 return NULL;
  79         }
  80 }
  81
  82 s64 bch2_remap_range(struct bch_fs *, subvol_inum, u64,
  83                      subvol_inum, u64, u64, u64, s64 *);
  84
  85 #endif /* _BCACHEFS_REFLINK_H */