BUG: Ecryptfs ioctl handling

From: Alan Cox
Date: Thu May 22 2008 - 07:00:58 EST

Ecryptfs has an ioctl method that checks for the underlying fs ioctl
method and can call down into. Unfortunately however it doesn't check for
an underlying unlocked_ioctl method and call that if present.

Notices while removing the remaining users of ->ioctl from my dev tree.

Really ecryptfs needs its own ->unlocked_ioctl op to call into either
unlocked ioctl below or lock_kernel/ioctl/unlock_kernel below.

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