See upstream commit :
commit
3f1266f1f82d7b8c72472a8921e80aa3e611fb62
Author: Christoph Hellwig <hch@lst.de>
Date: Sat Jun 20 09:16:41 2020 +0200
block: move block-related definitions out of fs.h
Move most of the block related definition out of fs.h into more suitable
headers.
Change-Id: I8d072406a04f549d1ddb0f2ac392deaabbb26a92
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
#include <linux/mutex.h>
#include <linux/device.h>
+#include <linux/blkdev.h>
+
#include <lttng-events.h>
#include <lttng-tracer.h>
#include <wrapper/cpu.h>