diff options
Diffstat (limited to 'nscd/grpcache.c')
| -rw-r--r-- | nscd/grpcache.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/nscd/grpcache.c b/nscd/grpcache.c index 38311701a7..8b9b13df16 100644 --- a/nscd/grpcache.c +++ b/nscd/grpcache.c @@ -205,10 +205,19 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req, dataset = NULL; if (he == NULL) - dataset = (struct dataset *) mempool_alloc (db, total + n, 1); + { + /* Prevent an INVALIDATE request from pruning the data between + the two calls to cache_add. */ + if (db->propagate) + pthread_mutex_lock (&db->prune_run_lock); + dataset = (struct dataset *) mempool_alloc (db, total + n, 1); + } if (dataset == NULL) { + if (he == NULL && db->propagate) + pthread_mutex_unlock (&db->prune_run_lock); + /* We cannot permanently add the result in the moment. But we can provide the result as is. Store the data in some temporary memory. */ @@ -396,6 +405,8 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req, out: pthread_rwlock_unlock (&db->lock); + if (he == NULL && db->propagate) + pthread_mutex_unlock (&db->prune_run_lock); } } |