On Tue, Nov 20, 2012 at 05:14:53AM -0500, Christoph Hellwig wrote:

On Tue, Nov 20, 2012 at 05:29:41PM +0800, Zheng Liu wrote:

quoted

Hi all,

This patch series tries to remove a sanity check in fallocate from specific
filesystems because vfs has already checked it.

I am not very familiar with why we need to do this duplicated check.  Please let
me know if I miss something.

Each filesystem driver checks to see if a flag that it doesn't support
gets passed down.  This was done with the intention that we can add new
flags to the VFS without having to update every filesystem.

Thanks for your explanation.

Regards,
                                                - Zheng