rgw file: allow RGWLibFS::write_completion_interval_s to be set in conf

Signed-off-by: Matt Benjamin <[email protected]>

src/common/config_opts.h

@@ -1366,6 +1366,9 @@ OPTION(rgw_nfs_lru_lanes, OPT_INT, 5)
 OPTION(rgw_nfs_lru_lane_hiwat, OPT_INT, 911)
 OPTION(rgw_nfs_fhcache_partitions, OPT_INT, 3)
 OPTION(rgw_nfs_fhcache_size, OPT_INT, 2017) /* 3*2017=6051 */
+OPTION(rgw_nfs_write_completion_interval_s, OPT_INT, 10) /* stateless (V3)
+							  * commit
+							  * delay */
 
 OPTION(rgw_zone, OPT_STR, "") // zone name
 OPTION(rgw_zone_root_pool, OPT_STR, ".rgw.root")    // pool where zone specific info is stored

src/rgw/librgw.cc

@@ -82,6 +82,10 @@ namespace rgw {
 
   void RGWLibProcess::run()
   {
+    /* write completion interval */
+    RGWLibFS::write_completion_interval_s =
+      cct->_conf->rgw_nfs_write_completion_interval_s;
+
     /* start write timer */
     RGWLibFS::write_timer.resume();
 

src/rgw/rgw_file.cc

@@ -38,6 +38,8 @@ namespace rgw {
 
   atomic<uint32_t> RGWLibFS::fs_inst;
 
+  uint32_t RGWLibFS::write_completion_interval_s = 10;
+
   ceph::timer<ceph::mono_clock> RGWLibFS::write_timer{
     ceph::construct_suspended};
 
@@ -815,7 +817,8 @@ namespace rgw {
 	  /* start write timer */
 	  f->write_req->timer_id =
 	    RGWLibFS::write_timer.add_event(
-	      std::chrono::seconds(10), WriteCompletion(*this));
+	      std::chrono::seconds(RGWLibFS::write_completion_interval_s),
+	      WriteCompletion(*this));
 	}
       }
     }

src/rgw/rgw_file.h

@@ -712,6 +712,7 @@ namespace rgw {
     RGWAccessKey key; // XXXX acc_key
 
     static atomic<uint32_t> fs_inst;
+    static uint32_t write_completion_interval_s;
     std::string fsid;
 
     using lock_guard = std::lock_guard<std::mutex>;