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Diffstat (limited to 'fs/bcachefs/btree_iter.h')
-rw-r--r--fs/bcachefs/btree_iter.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/bcachefs/btree_iter.h b/fs/bcachefs/btree_iter.h
index dca62375d7d3..222b7ce8a901 100644
--- a/fs/bcachefs/btree_iter.h
+++ b/fs/bcachefs/btree_iter.h
@@ -569,6 +569,15 @@ static inline struct bkey_s_c bch2_bkey_get_iter(struct btree_trans *trans,
bkey_s_c_to_##_type(__bch2_bkey_get_iter(_trans, _iter, \
_btree_id, _pos, _flags, KEY_TYPE_##_type))
+#define bkey_val_copy(_dst_v, _src_k) \
+do { \
+ unsigned b = min_t(unsigned, sizeof(*_dst_v), \
+ bkey_val_bytes(_src_k.k)); \
+ memcpy(_dst_v, _src_k.v, b); \
+ if (b < sizeof(*_dst_v)) \
+ memset((void *) (_dst_v) + b, 0, sizeof(*_dst_v) - b); \
+} while (0)
+
static inline int __bch2_bkey_get_val_typed(struct btree_trans *trans,
unsigned btree_id, struct bpos pos,
unsigned flags, unsigned type,