Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 19 Mar 2019 16:56:18 -0700
In-Reply-To: <20190319235619.260832-1-surenb@google.com>
Message-Id: <20190319235619.260832-7-surenb@google.com>
Mime-Version: 1.0
References: <20190319235619.260832-1-surenb@google.com>
Subject: [PATCH v6 6/7] refactor header includes to allow kthread.h inclusion
 in psi_types.h
From:   Suren Baghdasaryan <surenb@google.com>
To:     gregkh@linuxfoundation.org
Cc:     tj@kernel.org, lizefan@huawei.com, hannes@cmpxchg.org,
        axboe@kernel.dk, dennis@kernel.org, dennisszhou@gmail.com,
        mingo@redhat.com, peterz@infradead.org, akpm@linux-foundation.org,
        corbet@lwn.net, cgroups@vger.kernel.org, linux-mm@kvack.org,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        kernel-team@android.com, Suren Baghdasaryan <surenb@google.com>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

kthread.h can't be included in psi_types.h because it creates a circular
inclusion with kthread.h eventually including psi_types.h and complaining
on kthread structures not being defined because they are defined further
in the kthread.h. Resolve this by removing psi_types.h inclusion from the
headers included from kthread.h.

Signed-off-by: Suren Baghdasaryan <surenb@google.com>
---
 drivers/spi/spi-rockchip.c | 1 +
 include/linux/kthread.h    | 3 ++-
 include/linux/sched.h      | 1 -
 kernel/kthread.c           | 1 +
 4 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 3912526ead66..cdb613d38062 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -15,6 +15,7 @@
 
 #include <linux/clk.h>
 #include <linux/dmaengine.h>
+#include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/pinctrl/consumer.h>
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 2c89e60bc752..0f9da966934e 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -4,7 +4,6 @@
 /* Simple interface for creating and stopping kernel threads without mess. */
 #include <linux/err.h>
 #include <linux/sched.h>
-#include <linux/cgroup.h>
 
 __printf(4, 5)
 struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
@@ -198,6 +197,8 @@ bool kthread_cancel_delayed_work_sync(struct kthread_delayed_work *work);
 
 void kthread_destroy_worker(struct kthread_worker *worker);
 
+struct cgroup_subsys_state;
+
 #ifdef CONFIG_BLK_CGROUP
 void kthread_associate_blkcg(struct cgroup_subsys_state *css);
 struct cgroup_subsys_state *kthread_blkcg(void);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1549584a1538..20b9f03399a7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -26,7 +26,6 @@
 #include <linux/latencytop.h>
 #include <linux/sched/prio.h>
 #include <linux/signal_types.h>
-#include <linux/psi_types.h>
 #include <linux/mm_types_task.h>
 #include <linux/task_io_accounting.h>
 #include <linux/rseq.h>
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 5942eeafb9ac..be4e8795561a 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -11,6 +11,7 @@
 #include <linux/kthread.h>
 #include <linux/completion.h>
 #include <linux/err.h>
+#include <linux/cgroup.h>
 #include <linux/cpuset.h>
 #include <linux/unistd.h>
 #include <linux/file.h>
-- 
2.21.0.225.g810b269d1ac-goog