linux-kernel - [PATCH 25/35] sched/headers: Remove <linux/rwsem.h> from <linux/sched.h>

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Date:   Wed,  8 Feb 2017 19:51:17 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mike Galbraith <efault@....de>,
        Oleg Nesterov <oleg@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 25/35] sched/headers: Remove <linux/rwsem.h> from <linux/sched.h>

This is a stray header that is not needed by anything in sched.h,
so remove it.

Update files that relied on the stray inclusion.

This reduces the size of the header dependency graph.

Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Mike Galbraith <efault@....de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 include/linux/sched.h          | 2 --
 include/linux/user_namespace.h | 1 +
 kernel/utsname_sysctl.c        | 1 +
 3 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index fa722c4c18a3..da3847ac3956 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -226,8 +226,6 @@ struct task_cputime {
 #define prof_exp	stime
 #define sched_exp	sum_exec_runtime
 
-#include <linux/rwsem.h>
-
 #ifdef CONFIG_SCHED_INFO
 struct sched_info {
 	/* cumulative counters */
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 746ee376e603..b3613ee889d9 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -5,6 +5,7 @@
 #include <linux/nsproxy.h>
 #include <linux/ns_common.h>
 #include <linux/sched.h>
+#include <linux/rwsem.h>
 #include <linux/sysctl.h>
 #include <linux/err.h>
 
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index c8eac43267e9..233cd8fc6910 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -14,6 +14,7 @@
 #include <linux/utsname.h>
 #include <linux/sysctl.h>
 #include <linux/wait.h>
+#include <linux/rwsem.h>
 
 #ifdef CONFIG_PROC_SYSCTL
 
-- 
2.7.4