RDMA/rtrs-clt: add an additional random 8 seconds before reconnecting (09e0dbbe) · Commits · 戴 / test

drivers/infiniband/ulp/rtrs/rtrs-clt.c

+12 −2

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@

		#include <linux/module.h>
		#include <linux/rculist.h>
		#include <linux/random.h>

		#include "rtrs-clt.h"
		#include "rtrs-log.h"
		@@ -23,6 +24,12 @@
		* leads to "false positives" failed reconnect attempts
		*/
		#define RTRS_RECONNECT_BACKOFF 1000
		/*
		* Wait for additional random time between 0 and 8 seconds
		* before starting to reconnect to avoid clients reconnecting
		* all at once in case of a major network outage
		*/
		#define RTRS_RECONNECT_SEED 8

		MODULE_DESCRIPTION("RDMA Transport Client");
		MODULE_LICENSE("GPL");
		@@ -306,7 +313,8 @@ static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con)
		*/
		delay_ms = clt->reconnect_delay_sec * 1000;
		queue_delayed_work(rtrs_wq, &sess->reconnect_dwork,
		msecs_to_jiffies(delay_ms));
		msecs_to_jiffies(delay_ms +
		prandom_u32() % RTRS_RECONNECT_SEED));
		} else {
		/*
		* Error can happen just on establishing new connection,
		@@ -2503,7 +2511,9 @@ reconnect_again:
		sess->stats->reconnects.fail_cnt++;
		delay_ms = clt->reconnect_delay_sec * 1000;
		queue_delayed_work(rtrs_wq, &sess->reconnect_dwork,
		msecs_to_jiffies(delay_ms));
		msecs_to_jiffies(delay_ms +
		prandom_u32() %
		RTRS_RECONNECT_SEED));
		}
		}