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Subject[PATCH AUTOSEL 5.3 18/68] nvme-tcp: fix wrong stop condition in io_work
Date
From: "Wunderlich, Mark" <mark.wunderlich@intel.com>

[ Upstream commit ddef29578a81a1d4d8f2b26a7adbfe21407ee3ea ]

Allow the do/while statement to continue if current time
is not after the proposed time 'deadline'. Intent is to
allow loop to proceed for a specific time period. Currently
the loop, as coded, will exit after first pass.

Signed-off-by: Mark Wunderlich <mark.wunderlich@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/host/tcp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 606b13d35d16f..bdadb27b28bbb 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1039,7 +1039,7 @@ static void nvme_tcp_io_work(struct work_struct *w)
{
struct nvme_tcp_queue *queue =
container_of(w, struct nvme_tcp_queue, io_work);
- unsigned long start = jiffies + msecs_to_jiffies(1);
+ unsigned long deadline = jiffies + msecs_to_jiffies(1);

do {
bool pending = false;
@@ -1064,7 +1064,7 @@ static void nvme_tcp_io_work(struct work_struct *w)
if (!pending)
return;

- } while (time_after(jiffies, start)); /* quota is exhausted */
+ } while (!time_after(jiffies, deadline)); /* quota is exhausted */

queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work);
}
--
2.20.1
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