[PATCH] dm: export blkdev_driver_ioctl
Export blkdev_driver_ioctl for device-mapper.
If we get as far as the device-mapper ioctl handler, we know the ioctl is not
a standard block layer BLK* one, so we don't need to check for them a second
time and can call blkdev_driver_ioctl() directly.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/block/ioctl.c b/block/ioctl.c
index 309760b..58aab63 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -199,8 +199,8 @@
return -ENOIOCTLCMD;
}
-static int blkdev_driver_ioctl(struct inode *inode, struct file *file,
- struct gendisk *disk, unsigned cmd, unsigned long arg)
+int blkdev_driver_ioctl(struct inode *inode, struct file *file,
+ struct gendisk *disk, unsigned cmd, unsigned long arg)
{
int ret;
if (disk->fops->unlocked_ioctl)
@@ -215,6 +215,7 @@
return -ENOTTY;
}
+EXPORT_SYMBOL_GPL(blkdev_driver_ioctl);
int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
unsigned long arg)