linux-kernel - [PATCH] rcu: don't include <linux/ktime.h> in rcutiny.h

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Message-Id: <20190822015343.4058-1-hch@lst.de>
Date:   Thu, 22 Aug 2019 10:53:43 +0900
From:   Christoph Hellwig <hch@....de>
To:     paulmck@...ux.ibm.com, josh@...htriplett.org
Cc:     rcu@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] rcu: don't include <linux/ktime.h> in rcutiny.h

The kbuild reported a built failure due to a header loop when RCUTINY is
enabled with my pending riscv-nommu port.  Switch rcutiny.h to only
include the minimal required header to get HZ instead.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 include/linux/rcutiny.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 8e727f57d814..9bf1dfe7781f 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -12,7 +12,7 @@
 #ifndef __LINUX_TINY_H
 #define __LINUX_TINY_H
 
-#include <linux/ktime.h>
+#include <asm/param.h> /* for HZ */
 
 /* Never flag non-existent other CPUs! */
 static inline bool rcu_eqs_special_set(int cpu) { return false; }
-- 
2.20.1