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mm, dax: change pmd_fault() to take only vmf parameter

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pmd_fault() and related functions really only need the vmf parameter since
the additional parameters are all included in the vmf struct.  Remove the
additional parameter and simplify pmd_fault() and friends.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Dave Jiang <[email protected]>
Reviewed-by: Ross Zwisler <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Steven Rostedt <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Dave Jiang 2017-02-22 15:40:06 -08:00 • committed by Linus Torvalds
commit f42003917b
8 changed files with 74 additions and 85 deletions
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9
mm/memory.c
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@ -3471,11 +3471,10 @@ out:
static int create_huge_pmd(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
if (vma_is_anonymous(vma))
if (vma_is_anonymous(vmf->vma))
return do_huge_pmd_anonymous_page(vmf);
if (vma->vm_ops->pmd_fault)
return vma->vm_ops->pmd_fault(vma, vmf);
if (vmf->vma->vm_ops->pmd_fault)
return vmf->vma->vm_ops->pmd_fault(vmf);
return VM_FAULT_FALLBACK;
}
@ -3484,7 +3483,7 @@ static int wp_huge_pmd(struct vm_fault *vmf, pmd_t orig_pmd)
if (vma_is_anonymous(vmf->vma))
return do_huge_pmd_wp_page(vmf, orig_pmd);
if (vmf->vma->vm_ops->pmd_fault)
return vmf->vma->vm_ops->pmd_fault(vmf->vma, vmf);
return vmf->vma->vm_ops->pmd_fault(vmf);
/* COW handled on pte level: split pmd */
VM_BUG_ON_VMA(vmf->vma->vm_flags & VM_SHARED, vmf->vma);