1 files changed, 25 insertions, 18 deletions

diff --git a/libbcachefs/extents.h b/libbcachefs/extents.h
index 879e7d21..9110acae 100644
--- a/libbcachefs/extents.h
+++ b/libbcachefs/extents.h
@@ -89,6 +89,18 @@ static inline void __extent_entry_insert(struct bkey_i *k,
 	memcpy_u64s_small(dst, new, extent_entry_u64s(new));
 }
 
+static inline void extent_entry_drop(struct bkey_s k, union bch_extent_entry *entry)
+{
+	union bch_extent_entry *next = extent_entry_next(entry);
+
+	/* stripes have ptrs, but their layout doesn't work with this code */
+	BUG_ON(k.k->type == KEY_TYPE_stripe);
+
+	memmove_u64s_down(entry, next,
+			  (u64 *) bkey_val_end(k) - (u64 *) next);
+	k.k->u64s -= (u64 *) next - (u64 *) entry;
+}
+
 static inline bool extent_entry_is_ptr(const union bch_extent_entry *e)
 {
 	return extent_entry_type(e) == BCH_EXTENT_ENTRY_ptr;
@@ -190,6 +202,11 @@ static inline bool crc_is_compressed(struct bch_extent_crc_unpacked crc)
 		crc.compression_type != BCH_COMPRESSION_TYPE_incompressible);
 }
 
+static inline bool crc_is_encoded(struct bch_extent_crc_unpacked crc)
+{
+	return crc.csum_type != BCH_CSUM_none || crc_is_compressed(crc);
+}
+
 /* bkey_ptrs: generically over any key type that has ptrs */
 
 struct bkey_ptrs_c {
@@ -693,6 +710,14 @@ int bch2_bkey_ptrs_invalid(const struct bch_fs *, struct bkey_s_c,
 
 void bch2_ptr_swab(struct bkey_s);
 
+const struct bch_extent_rebalance *bch2_bkey_rebalance_opts(struct bkey_s_c);
+unsigned bch2_bkey_ptrs_need_rebalance(struct bch_fs *, struct bkey_s_c,
+				       unsigned, unsigned);
+bool bch2_bkey_needs_rebalance(struct bch_fs *, struct bkey_s_c);
+
+int bch2_bkey_set_needs_rebalance(struct bch_fs *, struct bkey_i *,
+				  unsigned, unsigned);
+
 /* Generic extent code: */
 
 enum bch_extent_overlap {
@@ -737,22 +762,4 @@ static inline void bch2_key_resize(struct bkey *k, unsigned new_size)
 	k->size = new_size;
 }
 
-/*
- * In extent_sort_fix_overlapping(), insert_fixup_extent(),
- * extent_merge_inline() - we're modifying keys in place that are packed. To do
- * that we have to unpack the key, modify the unpacked key - then this
- * copies/repacks the unpacked to the original as necessary.
- */
-static inline void extent_save(struct btree *b, struct bkey_packed *dst,
-			       struct bkey *src)
-{
-	struct bkey_format *f = &b->format;
-	struct bkey_i *dst_unpacked;
-
-	if ((dst_unpacked = packed_to_bkey(dst)))
-		dst_unpacked->k = *src;
-	else
-		BUG_ON(!bch2_bkey_pack_key(dst, src, f));
-}
-
 #endif /* _BCACHEFS_EXTENTS_H */