On 09/29/2014 03:05 PM, Christoph Hellwig wrote:
> Seems like this should be changed in the generic code, or is there some
> reason why it would return EIO only for devices, but not for regular
> files in this case?
> 

Regular files shouldn't be returning EIO and don't in my tests. The file
systems manage direct I/O EOF handling in their own block or direct_IO
callbacks.  Block devices do not and instead do the size checks up
front.  Raw devices were bypassing the block device check, so only the
raw driver should be having this issue.

David Jeffery
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