diff options
Diffstat (limited to 'source4/lib/ldb/ldb_tdb/ldb_cache.c')
| -rw-r--r-- | source4/lib/ldb/ldb_tdb/ldb_cache.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/source4/lib/ldb/ldb_tdb/ldb_cache.c b/source4/lib/ldb/ldb_tdb/ldb_cache.c index 84932ac47f..467f1ac34d 100644 --- a/source4/lib/ldb/ldb_tdb/ldb_cache.c +++ b/source4/lib/ldb/ldb_tdb/ldb_cache.c @@ -316,6 +316,12 @@ int ltdb_cache_load(struct ldb_module *module) uint64_t seq; struct ldb_message *baseinfo; + /* a very fast check to avoid extra database reads */ + if (ltdb->cache != NULL && + tdb_get_seqnum(ltdb->tdb) == ltdb->tdb_seqnum) { + return 0; + } + if (ltdb->cache == NULL) { ltdb->cache = talloc_zero(ltdb, struct ltdb_cache); if (ltdb->cache == NULL) goto failed; @@ -349,6 +355,8 @@ int ltdb_cache_load(struct ldb_module *module) } } + ltdb->tdb_seqnum = tdb_get_seqnum(ltdb->tdb); + /* if the current internal sequence number is the same as the one in the database then assume the rest of the cache is OK */ seq = ldb_msg_find_attr_as_uint64(baseinfo, LTDB_SEQUENCE_NUMBER, 0); |