78668fe0bb
For backpointers, we need to switch the order triggers are run in: we need to run triggers for deletions/overwrites before triggers for inserts. To avoid breaking the reflink triggers, this patch moves deleting of indirect extents with refcount=0 to their triggers, instead of doing it when we update those keys. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_REFLINK_H
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#define _BCACHEFS_REFLINK_H
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const char *bch2_reflink_p_invalid(const struct bch_fs *, struct bkey_s_c);
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void bch2_reflink_p_to_text(struct printbuf *, struct bch_fs *,
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struct bkey_s_c);
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bool bch2_reflink_p_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);
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#define bch2_bkey_ops_reflink_p (struct bkey_ops) { \
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.key_invalid = bch2_reflink_p_invalid, \
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.val_to_text = bch2_reflink_p_to_text, \
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.key_merge = bch2_reflink_p_merge, \
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.trans_trigger = bch2_trans_mark_reflink_p, \
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.atomic_trigger = bch2_mark_reflink_p, \
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}
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const char *bch2_reflink_v_invalid(const struct bch_fs *, struct bkey_s_c);
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void bch2_reflink_v_to_text(struct printbuf *, struct bch_fs *,
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struct bkey_s_c);
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int bch2_trans_mark_reflink_v(struct btree_trans *, struct bkey_s_c,
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struct bkey_i *, unsigned);
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#define bch2_bkey_ops_reflink_v (struct bkey_ops) { \
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.key_invalid = bch2_reflink_v_invalid, \
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.val_to_text = bch2_reflink_v_to_text, \
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.swab = bch2_ptr_swab, \
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.trans_trigger = bch2_trans_mark_reflink_v, \
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.atomic_trigger = bch2_mark_extent, \
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}
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const char *bch2_indirect_inline_data_invalid(const struct bch_fs *,
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struct bkey_s_c);
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void bch2_indirect_inline_data_to_text(struct printbuf *,
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struct bch_fs *, struct bkey_s_c);
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int bch2_trans_mark_indirect_inline_data(struct btree_trans *,
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struct bkey_s_c, struct bkey_i *,
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unsigned);
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#define bch2_bkey_ops_indirect_inline_data (struct bkey_ops) { \
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.key_invalid = bch2_indirect_inline_data_invalid, \
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.val_to_text = bch2_indirect_inline_data_to_text, \
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.trans_trigger = bch2_trans_mark_indirect_inline_data, \
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}
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static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
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{
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switch (k.k->type) {
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case KEY_TYPE_reflink_v:
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return &bkey_s_c_to_reflink_v(k).v->refcount;
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case KEY_TYPE_indirect_inline_data:
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return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
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default:
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return NULL;
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}
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}
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static inline __le64 *bkey_refcount(struct bkey_i *k)
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{
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switch (k->k.type) {
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case KEY_TYPE_reflink_v:
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return &bkey_i_to_reflink_v(k)->v.refcount;
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case KEY_TYPE_indirect_inline_data:
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return &bkey_i_to_indirect_inline_data(k)->v.refcount;
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default:
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return NULL;
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}
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}
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s64 bch2_remap_range(struct bch_fs *, subvol_inum, u64,
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subvol_inum, u64, u64, u64, s64 *);
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#endif /* _BCACHEFS_REFLINK_H */
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