fs/bcachefs/reflink.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_REFLINK_H
   3 #define _BCACHEFS_REFLINK_H
   4
   5 enum bch_validate_flags;
   6
   7 int bch2_reflink_p_invalid(struct bch_fs *, struct bkey_s_c,
   8                            enum bch_validate_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_trigger_reflink_p(struct btree_trans *, enum btree_id, unsigned,
  13                            struct bkey_s_c, struct bkey_s,
  14                            enum btree_iter_update_trigger_flags);
  15
  16 #define bch2_bkey_ops_reflink_p ((struct bkey_ops) {            \
  17         .key_invalid    = bch2_reflink_p_invalid,               \
  18         .val_to_text    = bch2_reflink_p_to_text,               \
  19         .key_merge      = bch2_reflink_p_merge,                 \
  20         .trigger        = bch2_trigger_reflink_p,               \
  21         .min_val_size   = 16,                                   \
  22 })
  23
  24 int bch2_reflink_v_invalid(struct bch_fs *, struct bkey_s_c,
  25                            enum bch_validate_flags, struct printbuf *);
  26 void bch2_reflink_v_to_text(struct printbuf *, struct bch_fs *,
  27                             struct bkey_s_c);
  28 int bch2_trigger_reflink_v(struct btree_trans *, enum btree_id, unsigned,
  29                            struct bkey_s_c, struct bkey_s,
  30                            enum btree_iter_update_trigger_flags);
  31
  32 #define bch2_bkey_ops_reflink_v ((struct bkey_ops) {            \
  33         .key_invalid    = bch2_reflink_v_invalid,               \
  34         .val_to_text    = bch2_reflink_v_to_text,               \
  35         .swab           = bch2_ptr_swab,                        \
  36         .trigger        = bch2_trigger_reflink_v,               \
  37         .min_val_size   = 8,                                    \
  38 })
  39
  40 int bch2_indirect_inline_data_invalid(struct bch_fs *, struct bkey_s_c,
  41                                       enum bch_validate_flags, struct printbuf *);
  42 void bch2_indirect_inline_data_to_text(struct printbuf *,
  43                                 struct bch_fs *, struct bkey_s_c);
  44 int bch2_trigger_indirect_inline_data(struct btree_trans *,
  45                                          enum btree_id, unsigned,
  46                               struct bkey_s_c, struct bkey_s,
  47                               enum btree_iter_update_trigger_flags);
  48
  49 #define bch2_bkey_ops_indirect_inline_data ((struct bkey_ops) { \
  50         .key_invalid    = bch2_indirect_inline_data_invalid,    \
  51         .val_to_text    = bch2_indirect_inline_data_to_text,    \
  52         .trigger        = bch2_trigger_indirect_inline_data,    \
  53         .min_val_size   = 8,                                    \
  54 })
  55
  56 static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
  57 {
  58         switch (k.k->type) {
  59         case KEY_TYPE_reflink_v:
  60                 return &bkey_s_c_to_reflink_v(k).v->refcount;
  61         case KEY_TYPE_indirect_inline_data:
  62                 return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
  63         default:
  64                 return NULL;
  65         }
  66 }
  67
  68 static inline __le64 *bkey_refcount(struct bkey_s k)
  69 {
  70         switch (k.k->type) {
  71         case KEY_TYPE_reflink_v:
  72                 return &bkey_s_to_reflink_v(k).v->refcount;
  73         case KEY_TYPE_indirect_inline_data:
  74                 return &bkey_s_to_indirect_inline_data(k).v->refcount;
  75         default:
  76                 return NULL;
  77         }
  78 }
  79
  80 s64 bch2_remap_range(struct bch_fs *, subvol_inum, u64,
  81                      subvol_inum, u64, u64, u64, s64 *);
  82
  83 #endif /* _BCACHEFS_REFLINK_H */