tdb: cleanup: tdb_release_extra_locks() helper

Move locking intelligence back into lock.c, rather than open-coding the
lock release in transaction.c.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/tdb/common/lock.c b/lib/tdb/common/lock.c
index 4f8970fd34..3013b06af6 100644
--- a/lib/tdb/common/lock.c
+++ b/lib/tdb/common/lock.c
@@ -702,3 +702,23 @@ bool tdb_have_extra_locks(struct tdb_context *tdb)
 	}
 	return false;
 }
+
+/* The transaction code uses this to remove all locks. */
+void tdb_release_extra_locks(struct tdb_context *tdb)
+{
+	unsigned int i;
+
+	if (tdb->allrecord_lock.count != 0) {
+		tdb_brunlock(tdb, tdb->allrecord_lock.ltype,
+			     FREELIST_TOP, 4*tdb->header.hash_size);
+		tdb->allrecord_lock.count = 0;
+	}
+
+	for (i=0;i<tdb->num_lockrecs;i++) {
+		tdb_brunlock(tdb, tdb->lockrecs[i].ltype,
+			     tdb->lockrecs[i].off, 1);
+	}
+	tdb->num_locks = 0;
+	tdb->num_lockrecs = 0;
+	SAFE_FREE(tdb->lockrecs);
+}