linux-kernel - [PATCH v2 04/35] vfs: export vfs

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Message-Id: <20180507083807.28792-5-mszeredi@redhat.com>
Date:   Mon,  7 May 2018 10:37:36 +0200
From:   Miklos Szeredi <mszeredi@...hat.com>
To:     linux-unionfs@...r.kernel.org
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Al Viro <viro@...iv.linux.org.uk>
Subject: [PATCH v2 04/35] vfs: export vfs_ioctl() to modules

This is needed by the stacked ioctl implementation in overlayfs.

Signed-off-by: Miklos Szeredi <mszeredi@...hat.com>
---
 fs/internal.h      | 1 -
 fs/ioctl.c         | 1 +
 include/linux/fs.h | 2 ++
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/internal.h b/fs/internal.h
index b82725ba3054..6821cf475fc6 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -189,7 +189,6 @@ extern const struct dentry_operations ns_dentry_operations;
  */
 extern int do_vfs_ioctl(struct file *file, unsigned int fd, unsigned int cmd,
 		    unsigned long arg);
-extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 
 /*
  * iomap support:
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 4823431d1c9d..41071915f411 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -49,6 +49,7 @@ long vfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
  out:
 	return error;
 }
+EXPORT_SYMBOL(vfs_ioctl);
 
 static int ioctl_fibmap(struct file *filp, int __user *p)
 {
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 898fb798a3ff..26685011c4bd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1623,6 +1623,8 @@ int vfs_mkobj(struct dentry *, umode_t,
 		int (*f)(struct dentry *, umode_t, void *),
 		void *);
 
+extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+
 /*
  * VFS file helper functions.
  */
-- 
2.14.3