On Mon, Apr 23, 2018 at 10:12:30PM +0530, Souptick Joarder wrote:
> On Sun, Apr 22, 2018 at 8:50 AM, Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
> > On Sun, Apr 22, 2018 at 03:47:24AM +0530, Souptick Joarder wrote:
> >> @@ -261,7 +261,7 @@ static inline int to_fault_error(int result)
> >> * \retval VM_FAULT_ERROR on general error
> >> * \retval NOPAGE_OOM not have memory for allocate new page
> >> */
> >> -static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf)
> >> +static vm_fault_t ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf)
> >> {
> >> struct lu_env *env;
> >> struct cl_io *io;
> >
> > Did you compile-test this with the sparse changes? Because I can see
> > a problem here:
>
> Yes, compile-tested. Sparse didn't throw any warning/error.
I think you need to check your setup ... I get this:
drivers/staging/lustre/lustre/llite/llite_mmap.c:277:31: warning: incorrect type in return expression (different base types)
drivers/staging/lustre/lustre/llite/llite_mmap.c:277:31: expected restricted vm_fault_t
drivers/staging/lustre/lustre/llite/llite_mmap.c:277:31: got long
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