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| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-05-17 09:30:24 -0400 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-05-17 09:30:24 -0400 |
| commit | 9c3a985f88fa4de82bf4bda906095ce6444e9039 (patch) | |
| tree | 4b02653fcb1ba1e6b342d98ac58f6206c56be935 /include/linux/mm_inline.h | |
| parent | 86634ba3dfc789497805da3d5774fcc1953cbe41 (diff) | |
| parent | ac9a78681b921877518763ba0e89202254349d1b (diff) | |
| download | lwn-9c3a985f88fa4de82bf4bda906095ce6444e9039.tar.gz lwn-9c3a985f88fa4de82bf4bda906095ce6444e9039.zip | |
Merge drm/drm-next into drm-intel-next
Backmerge to get some hwmon dependencies.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'include/linux/mm_inline.h')
| -rw-r--r-- | include/linux/mm_inline.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index de1e622dd366..0e1d239a882c 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -557,6 +557,12 @@ pte_install_uffd_wp_if_needed(struct vm_area_struct *vma, unsigned long addr, /* The current status of the pte should be "cleared" before calling */ WARN_ON_ONCE(!pte_none(*pte)); + /* + * NOTE: userfaultfd_wp_unpopulated() doesn't need this whole + * thing, because when zapping either it means it's dropping the + * page, or in TTU where the present pte will be quickly replaced + * with a swap pte. There's no way of leaking the bit. + */ if (vma_is_anonymous(vma) || !userfaultfd_wp(vma)) return; |