| From: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> |
| Subject: mm: fixup vma.h for nommu |
| Date: Sun, 25 Aug 2024 12:29:47 +0100 |
| |
| Some series of includes result in vma.h being imported by nommu under |
| certain circumstances, which references FIRST_USER_ADDRESS and |
| USER_PGTABLES_CEILING, neither of which are necessarily defined in a nommu |
| scenario. |
| |
| Work around this by wrapping the inline function which references these |
| (init_vma_munmap()) in an #ifdef CONFIG_MMU. |
| |
| Link: https://lkml.kernel.org/r/7d0ea994-f750-49c5-b392-ae7117369cf3@lucifer.local |
| Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> |
| Reported-by: SeongJae Park <sj@kernel.org> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| mm/vma.h | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| --- a/mm/vma.h~mm-remove-duplicated-include-in-vma_internalh-fix |
| +++ a/mm/vma.h |
| @@ -225,6 +225,7 @@ static inline int vma_iter_store_gfp(str |
| } |
| |
| |
| +#ifdef CONFIG_MMU |
| /* |
| * These three helpers classifies VMAs for virtual memory accounting. |
| */ |
| @@ -255,6 +256,7 @@ static inline bool is_data_mapping(vm_fl |
| { |
| return (flags & (VM_WRITE | VM_SHARED | VM_STACK)) == VM_WRITE; |
| } |
| +#endif |
| |
| |
| static inline void vma_iter_config(struct vma_iterator *vmi, |
| _ |
