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
  22 #define bch2_bkey_ops_reflink_v (struct bkey_ops) {             \
  23         .key_invalid    = bch2_reflink_v_invalid,               \
  24         .val_to_text    = bch2_reflink_v_to_text,               \
  25         .swab           = bch2_ptr_swab,                        \
  26         .trans_trigger  = bch2_trans_mark_extent,               \
  27         .atomic_trigger = bch2_mark_extent,                     \
  28 }
  29
  30 const char *bch2_indirect_inline_data_invalid(const struct bch_fs *,
  31                                               struct bkey_s_c);
  32 void bch2_indirect_inline_data_to_text(struct printbuf *,
  33                                 struct bch_fs *, struct bkey_s_c);
  34
  35 #define bch2_bkey_ops_indirect_inline_data (struct bkey_ops) {  \
  36         .key_invalid    = bch2_indirect_inline_data_invalid,    \
  37         .val_to_text    = bch2_indirect_inline_data_to_text,    \
  38 }
  39
  40 static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
  41 {
  42         switch (k.k->type) {
  43         case KEY_TYPE_reflink_v:
  44                 return &bkey_s_c_to_reflink_v(k).v->refcount;
  45         case KEY_TYPE_indirect_inline_data:
  46                 return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
  47         default:
  48                 return NULL;
  49         }
  50 }
  51
  52 static inline __le64 *bkey_refcount(struct bkey_i *k)
  53 {
  54         switch (k->k.type) {
  55         case KEY_TYPE_reflink_v:
  56                 return &bkey_i_to_reflink_v(k)->v.refcount;
  57         case KEY_TYPE_indirect_inline_data:
  58                 return &bkey_i_to_indirect_inline_data(k)->v.refcount;
  59         default:
  60                 return NULL;
  61         }
  62 }
  63
  64 s64 bch2_remap_range(struct bch_fs *, subvol_inum, u64,
  65                      subvol_inum, u64, u64, u64, s64 *);
  66
  67 #endif /* _BCACHEFS_REFLINK_H */