Displaying 4 results from an estimated 4 matches for "pte_hol".
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pte_hole
2019 Jul 26
0
[PATCH v2 5/7] mm/hmm: make full use of walk_page_range()
...range->page_shift &&
- range->page_shift != PAGE_SHIFT)
- return -EINVAL;
- } else {
- if (range->page_shift != PAGE_SHIFT)
- return -EINVAL;
- }
+ mm_walk.mm = hmm->mm;
+ mm_walk.pud_entry = hmm_vma_walk_pud;
+ mm_walk.pmd_entry = hmm_vma_walk_pmd;
+ mm_walk.pte_hole = hmm_vma_walk_hole;
+ mm_walk.hugetlb_entry = hmm_vma_walk_hugetlb_entry;
+ mm_walk.test_walk = hmm_vma_walk_test;
- if (!(vma->vm_flags & VM_READ)) {
- /*
- * If vma do not allow read access, then assume that it
- * does not allow write access, either. HMM does not
- * suppo...
2019 Sep 11
0
[PATCH 1/4] mm/hmm: make full use of walk_page_range()
...ctures
+ * that allow write without read.
+ */
+ if (!(vma->vm_flags & VM_READ)) {
+ (void) hmm_pfns_fill(start, end, range, HMM_PFN_NONE);
+ return -EPERM;
+ }
+
+ return 0;
}
/*
@@ -857,6 +879,7 @@ static const struct mm_walk_ops hmm_walk_ops = {
.pmd_entry = hmm_vma_walk_pmd,
.pte_hole = hmm_vma_walk_hole,
.hugetlb_entry = hmm_vma_walk_hugetlb_entry,
+ .test_walk = hmm_vma_walk_test,
};
/**
@@ -889,63 +912,27 @@ static const struct mm_walk_ops hmm_walk_ops = {
*/
long hmm_range_fault(struct hmm_range *range, unsigned int flags)
{
- const unsigned long device_vma = VM_I...
2019 Jul 26
13
[PATCH v2 0/7] mm/hmm: more HMM clean up
Here are seven more patches for things I found to clean up.
This was based on top of Christoph's seven patches:
"hmm_range_fault related fixes and legacy API removal v3".
I assume this will go into Jason's tree since there will likely be
more HMM changes in this cycle.
Changes from v1 to v2:
Added AMD GPU to hmm_update removal.
Added 2 patches from Christoph.
Added 2 patches as
2019 Sep 11
6
[PATCH 0/4] HMM tests and minor fixes
These changes are based on Jason's latest hmm branch.
Patch 1 was previously posted here [1] but was dropped from the orginal
series. Hopefully, the tests will reduce concerns about edge conditions.
I'm sure more tests could be usefully added but I thought this was a good
starting point.
[1] https://lore.kernel.org/linux-mm/20190726005650.2566-6-rcampbell at nvidia.com/
Ralph Campbell