diff options
| author | Dave Airlie <airlied@redhat.com> | 2024-04-22 14:35:22 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2024-04-22 14:35:52 +1000 |
| commit | 0208ca55aa9c9b997da1f5bc45c4e98916323f08 (patch) | |
| tree | e3130b2116f7738ac7cd79ad71698f545bb7db69 /mm/memory.c | |
| parent | 2871ec40994912ce4f2e2d5072a428eb84c77d3c (diff) | |
| parent | ed30a4a51bb196781c8058073ea720133a65596f (diff) | |
Linux 6.9-rc5
I've had a persistent msm failure on clang, and the fix is in fixes
so just pull it back to fix that.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c index 904f70b99498..d2155ced45f8 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -5973,6 +5973,10 @@ int follow_phys(struct vm_area_struct *vma, goto out; pte = ptep_get(ptep); + /* Never return PFNs of anon folios in COW mappings. */ + if (vm_normal_folio(vma, address, pte)) + goto unlock; + if ((flags & FOLL_WRITE) && !pte_write(pte)) goto unlock; |