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    SubjectRe: [PATCH] mm/memory.c: Convert to use vmf_error()
    On Fri, Sep 06, 2019 at 12:13:00AM +0530, Souptick Joarder wrote:
    > +++ b/mm/memory.c
    > @@ -1750,13 +1750,10 @@ static vm_fault_t __vm_insert_mixed(struct vm_area_struct *vma,
    > } else {
    > return insert_pfn(vma, addr, pfn, pgprot, mkwrite);
    > }
    > -
    > - if (err == -ENOMEM)
    > - return VM_FAULT_OOM;
    > - if (err < 0 && err != -EBUSY)
    > - return VM_FAULT_SIGBUS;
    > -
    > - return VM_FAULT_NOPAGE;
    > + if (!err || err == -EBUSY)
    > + return VM_FAULT_NOPAGE;
    > + else
    > + return vmf_error(err);
    > }

    My plan is to convert insert_page() to return a VM_FAULT error code like
    insert_pfn() does. Need to finish off the vm_insert_page() conversions
    first ;-)

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