From aa6b6f081dd825016f26cc1c2abf74e29e601b70 Mon Sep 17 00:00:00 2001
From: Ben Walker <benjamin.walker@intel.com>
Date: Fri, 18 Sep 2020 13:10:49 -0700
Subject: [PATCH] thread: Update thread->last_tsc at the start of polling

It may have been a long time since the thread last executed
so ensure this time is accurate.

Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: Iaa4c35b50cdc05ebb41724ed9946c5232d242ee3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4321
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
---
 lib/thread/thread.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/thread/thread.c b/lib/thread/thread.c
index f95f167d9..599a48b85 100644
--- a/lib/thread/thread.c
+++ b/lib/thread/thread.c
@@ -572,6 +572,8 @@ thread_poll(struct spdk_thread *thread, uint32_t max_msgs, uint64_t now)
 	spdk_msg_fn critical_msg;
 	int rc = 0;
 
+	thread->tsc_last = now;
+
 	critical_msg = thread->critical_msg;
 	if (spdk_unlikely(critical_msg != NULL)) {
 		critical_msg(NULL);