rpcsvc: scale rpcsvc_request_handler threads

Scale rpcsvc_request_handler threads to match the scaling of event
handler threads.

Please refer to https://bugzilla.redhat.com/show_bug.cgi?id=1467614#c51
for a discussion about why we need multi-threaded rpcsvc request
handlers.

Change-Id: Ib6838fb8b928e15602a3d36fd66b7ba08999430b
Signed-off-by: Milind Changire <mchangir@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/rpc/rpc-lib/src/rpcsvc.h b/rpc/rpc-lib/src/rpcsvc.h
index 878eea28999..ec76b659965 100644
--- a/rpc/rpc-lib/src/rpcsvc.h
+++ b/rpc/rpc-lib/src/rpcsvc.h
@@ -422,6 +422,12 @@ struct rpcsvc_program {
         pthread_mutex_t         queue_lock;
         pthread_cond_t          queue_cond;
         pthread_t               thread;
+        int                     threadcount;
+        /* eventthreadcount is just a readonly copy of the actual value
+         * owned by the event sub-system
+         * It is used to control the scaling of rpcsvc_request_handler threads
+         */
+        int                     eventthreadcount;
 };
 
 typedef struct rpcsvc_cbk_program {
@@ -639,4 +645,6 @@ rpcsvc_auth_array (rpcsvc_t *svc, char *volname, int *autharr, int arrlen);
 rpcsvc_vector_sizer
 rpcsvc_get_program_vector_sizer (rpcsvc_t *svc, uint32_t prognum,
                                  uint32_t progver, int procnum);
+extern int
+rpcsvc_ownthread_reconf (rpcsvc_t *svc, int new_eventthreadcount);
 #endif