On Thu, Mar 08, 2018 at 06:35:23PM +0530, Souptick Joarder wrote:
> Use new return type vm_fault_t for fault handler
> in struct vm_operations_struct.
>
> vmf_insert_mixed(), vmf_insert_pfn() and vmf_insert_page()
> are newly added inline wrapper functions.
>
> Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx>
Reviewed-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Andrew, the plan for these patches is to introduce the typedef, initially
just as documentation ("This function should return a VM_FAULT_ status").
We'll trickle the patches to individual drivers/filesystems in through
the maintainers, as far as possible. In a few months, we'll probably
dump a pile of patches to unloved drivers on you for merging. Then we'll
change the typedef to an unsigned int and break the compilation of any
unconverted driver.
Souptick has done a few dozen drivers already, and I've been doing my best
to keep up with reviewing the patches submitted. There's some interesting
patterns and commonalities between drivers (not to mention a few outright
bugs) that we've noticed, and this'll be a good time to clean them up.
It'd be great to get this into Linus' tree sooner so we can start
submitting the patches to the driver maintainers.
