Btrfs: clean up btrfs_ioctl a little bit
authorChristoph Hellwig <hch@lst.de>
Tue, 2 Dec 2008 11:36:08 +0000 (06:36 -0500)
committerChris Mason <chris.mason@oracle.com>
Tue, 2 Dec 2008 11:36:08 +0000 (06:36 -0500)
Provide a void __user *argp pointer so that we can avoid duplicating
the cast for various sub-command calls.

Signed-off-by: Christoph Hellwig <hch@lst.de>

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