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-rw-r--r--rpc/rpc-lib/src/rpc-drc.c63
1 files changed, 62 insertions, 1 deletions
diff --git a/rpc/rpc-lib/src/rpc-drc.c b/rpc/rpc-lib/src/rpc-drc.c
index 66d07cf..8181e6a 100644
--- a/rpc/rpc-lib/src/rpc-drc.c
+++ b/rpc/rpc-lib/src/rpc-drc.c
@@ -708,10 +708,15 @@ rpcsvc_drc_init (rpcsvc_t *svc, dict_t *options)
uint32_t drc_size = 0;
uint32_t drc_factor = 0;
rpcsvc_drc_globals_t *drc = NULL;
+ static gf_boolean_t drc_inited = _gf_false;
GF_ASSERT (svc);
GF_ASSERT (options);
+ /* Already inited */
+ if (drc_inited)
+ return 0;
+
if (!svc->drc) {
drc = GF_CALLOC (1, sizeof (rpcsvc_drc_globals_t),
gf_common_mt_drc_globals_t);
@@ -732,11 +737,12 @@ rpcsvc_drc_init (rpcsvc_t *svc, dict_t *options)
/* Toggle DRC on/off, when more drc types(persistent/cluster)
are added, we shouldn't treat this as boolean */
- ret = dict_get_str_boolean (options, "nfs.drc", _gf_false);
+ ret = dict_get_str_boolean (options, "nfs.drc", _gf_true);
if (ret == -1) {
gf_log (GF_RPCSVC, GF_LOG_INFO, "drc user options need second look");
ret = _gf_true;
}
+ drc->enable_drc = ret;
if (ret == _gf_false) {
/* drc off */
@@ -796,6 +802,7 @@ rpcsvc_drc_init (rpcsvc_t *svc, dict_t *options)
gf_log (GF_RPCSVC, GF_LOG_DEBUG, "drc init successful");
drc->status = DRC_INITIATED;
+ drc_inited = _gf_true;
out:
UNLOCK (&drc->lock);
@@ -809,3 +816,57 @@ rpcsvc_drc_init (rpcsvc_t *svc, dict_t *options)
}
return ret;
}
+
+int
+rpcsvc_drc_reconfigure (rpcsvc_t *svc, dict_t *options)
+{
+ int ret = -1;
+ gf_boolean_t enable_drc = _gf_false;
+ rpcsvc_drc_globals_t *drc = NULL;
+ uint32_t drc_size = 0;
+
+ if ((!svc) || (!options))
+ return (-1);
+
+ drc = svc->drc;
+ /* reconfig for drc-size */
+ if (dict_get_uint32 (options, "nfs.drc-size", &drc_size))
+ drc_size = DRC_DEFAULT_CACHE_SIZE;
+
+ if (drc->global_cache_size != drc_size) {
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "nfs.drc-size size can not "
+ "be reconfigured without NFS server restart.");
+ return (-1);
+ }
+
+ /* reconfig for nfs.drc */
+ ret = dict_get_str_boolean (options, "nfs.drc", _gf_true);
+ if (ret < 0) {
+ ret = _gf_true;
+ }
+ enable_drc = ret;
+
+ if (drc->enable_drc == enable_drc)
+ return 0;
+
+ drc->enable_drc = enable_drc;
+ if (enable_drc) {
+ if (drc == NULL)
+ return rpcsvc_drc_init(svc, options);
+ } else {
+ if (drc == NULL)
+ return (0);
+
+ LOCK (&drc->lock);
+ (void) rpcsvc_unregister_notify (svc, rpcsvc_drc_notify, THIS);
+ if (drc->mempool) {
+ mem_pool_destroy (drc->mempool);
+ drc->mempool = NULL;
+ }
+ UNLOCK (&drc->lock);
+ GF_FREE (drc);
+ svc->drc = NULL;
+ }
+
+ return (0);
+}