Commit 072792dc authored May 11, 2017 by Joe Thornber Committed by Mike Snitzer May 14, 2017

dm cache: fix incorrect 'idle_time' reset in IO tracker



Some bios have no payload (eg, a FLUSH), don't reset the idle_time when
these come in.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

parent 2ea659a9

drivers/md/dm-cache-target.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -94,6 +94,9 @@ static void iot_io_begin(struct io_tracker *iot, sector_t len)

		static void __iot_io_end(struct io_tracker *iot, sector_t len)
		{
		if (!len)
		return;

		iot->in_flight -= len;
		if (!iot->in_flight)
		iot->idle_time = jiffies;