mcctrl: use vmf_insert_pfn for kernel >= 4.18

vmf_insert_pfn got added as a wrapper around vm_insert_pfn in 4.17
1c8f422059ae5da ("mm: change return type to vm_fault_t") and totally
replaced the later in 4.20 ae2b01f37044c ("mm: remove vm_insert_pfn()")

Compare with 4.18 here specifically to avoid troubles when rhel
backports this change later, and avoid adding a rhel version check down
the road.

Change-Id: Ibf108e2fb6f1199f89cde6a7973f4eb55447260b
This commit is contained in:
Dominique Martinet
2019-02-08 11:14:32 +09:00
parent 0a49b6eca5
commit 207d653b41

View File

@ -859,7 +859,13 @@ static int rus_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
}
}
else
error = vm_insert_pfn(vma, rva+(pix*PAGE_SIZE), pfn+pix);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 18, 0)
error = vmf_insert_pfn(vma, rva+(pix*PAGE_SIZE),
pfn+pix);
#else
error = vm_insert_pfn(vma, rva+(pix*PAGE_SIZE),
pfn+pix);
#endif
if (error) {
#if 1 /* POSTK_DEBUG_TEMP_FIX_11 */ /* rus_vm_fault() multi-thread fix */
printk("%s: vm_insert_pfn returned %d\n", __FUNCTION__, error);