[patch 6/7] um: Convert mmapper to unlocked_ioctl

[Thomas Gleixner]

The ioctl is empty and needs no serialization. We might remove it
completely but that would change the return value from -ENOIOCTLCMD to
-ENOTTY.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
---
 arch/um/drivers/mmapper_kern.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Index: linux-2.6-tip/arch/um/drivers/mmapper_kern.c
===================================================================
--- linux-2.6-tip.orig/arch/um/drivers/mmapper_kern.c
+++ linux-2.6-tip/arch/um/drivers/mmapper_kern.c
@@ -46,8 +46,8 @@ static ssize_t mmapper_write(struct file
 	return count;
 }
 
-static int mmapper_ioctl(struct inode *inode, struct file *file,
-			 unsigned int cmd, unsigned long arg)
+static long mmapper_ioctl(struct file *file, unsigned int cmd,
+			  unsigned long arg)
 {
 	return -ENOIOCTLCMD;
 }
@@ -91,7 +91,7 @@ static const struct file_operations mmap
 	.owner		= THIS_MODULE,
 	.read		= mmapper_read,
 	.write		= mmapper_write,
-	.ioctl		= mmapper_ioctl,
+	.unlocked_ioctl	= mmapper_ioctl,
 	.mmap		= mmapper_mmap,
 	.open		= mmapper_open,
 	.release	= mmapper_release,


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