[PATCH] fs/nsfs.c: include headers for missing declarations

[Eric Biggers <ebiggers@xxxxxxxxxx>]

From: Eric Biggers <ebiggers@xxxxxxxxxx>

Include linux/proc_fs.h and fs/internal.h to address the following
'sparse' warnings:

    fs/nsfs.c:40:32: warning: symbol 'ns_dentry_operations' was not declared. Should it be static?
    fs/nsfs.c:144:5: warning: symbol 'open_related_ns' was not declared. Should it be static?

Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
 fs/nsfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/nsfs.c b/fs/nsfs.c
index e3bf08c5af411..d0e8391ae3d77 100644
--- a/fs/nsfs.c
+++ b/fs/nsfs.c
@@ -2,6 +2,7 @@
 #include <linux/mount.h>
 #include <linux/file.h>
 #include <linux/fs.h>
+#include <linux/proc_fs.h>
 #include <linux/proc_ns.h>
 #include <linux/magic.h>
 #include <linux/ktime.h>
@@ -10,6 +11,8 @@
 #include <linux/nsfs.h>
 #include <linux/uaccess.h>
 
+#include "internal.h"
+
 static struct vfsmount *nsfs_mnt;
 
 static long ns_ioctl(struct file *filp, unsigned int ioctl,
-- 
2.22.0.rc1.257.g3120a18244-goog