Re: [RFC][PATCH 0/12]ext4: online defrag (ver 0.95)

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On Tue, Sep 30, 2008 at 05:40:54PM -0700, Andreas Dilger wrote:
> Instead of implementing an EXT4_IOC_FIEMAP_INO ioctl, what we had implemented
> is an EXT4_IOC_WRAPPER, which takes as arguments the inode number and the
> ioctl command + original ioctl data.  This allows inode ioctls to be called
> against the filesystem root for arbitrary inodes, and doesn't require new
> implementation for each ioctl:

Or just provide more generic open by handle functionality.  Shouldn't be
too much of a problem to do it in the VFS by reusing the exportfs code.

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