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Diffstat (limited to 'drivers/dax')
-rw-r--r--drivers/dax/device.c22
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 30665a3ff6ea..93ebedc5ec8c 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -228,32 +228,26 @@ static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax,
}
#endif /* !CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
-static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf,
- enum page_entry_size pe_size)
+static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf, unsigned int order)
{
struct file *filp = vmf->vma->vm_file;
vm_fault_t rc = VM_FAULT_SIGBUS;
int id;
struct dev_dax *dev_dax = filp->private_data;
- dev_dbg(&dev_dax->dev, "%s: %s (%#lx - %#lx) size = %d\n", current->comm,
+ dev_dbg(&dev_dax->dev, "%s: %s (%#lx - %#lx) order:%d\n", current->comm,
(vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read",
- vmf->vma->vm_start, vmf->vma->vm_end, pe_size);
+ vmf->vma->vm_start, vmf->vma->vm_end, order);
id = dax_read_lock();
- switch (pe_size) {
- case PE_SIZE_PTE:
+ if (order == 0)
rc = __dev_dax_pte_fault(dev_dax, vmf);
- break;
- case PE_SIZE_PMD:
+ else if (order == PMD_ORDER)
rc = __dev_dax_pmd_fault(dev_dax, vmf);
- break;
- case PE_SIZE_PUD:
+ else if (order == PUD_ORDER)
rc = __dev_dax_pud_fault(dev_dax, vmf);
- break;
- default:
+ else
rc = VM_FAULT_SIGBUS;
- }
dax_read_unlock(id);
@@ -262,7 +256,7 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf,
static vm_fault_t dev_dax_fault(struct vm_fault *vmf)
{
- return dev_dax_huge_fault(vmf, PE_SIZE_PTE);
+ return dev_dax_huge_fault(vmf, 0);
}
static int dev_dax_may_split(struct vm_area_struct *vma, unsigned long addr)