[lustre-devel] [PATCH v2] staging: lustre: Change return type to vm_fault_t

[Greg KH]

On Thu, May 17, 2018 at 12:27:11AM +0530, Souptick Joarder wrote:
> Use new return type vm_fault_t for fault handler. For
> now, this is just documenting that the function returns
> a VM_FAULT value rather than an errno. Once all instances
> are converted, vm_fault_t will become a distinct type.
> 
> Commit 1c8f422059ae ("mm: change return type to vm_fault_t")
> 

What does that line mean?  Please be more descriptive.

confused,

greg k-h