| From: Alexander Gordeev <agordeev@linux.ibm.com> |
| Subject: pgtable: fix s390 ptdesc field comments |
| Date: Tue, 21 Nov 2023 20:43:49 +0100 |
| |
| Patch series "minor ptdesc updates", v3. |
| |
| |
| This patch (of 2): |
| |
| Since commit d08d4e7cd6bf ("s390/mm: use full 4KB page for 2KB PTE") there |
| is no fragmented page tracking on s390. Fix the corresponding comments. |
| |
| Link: https://lkml.kernel.org/r/cover.1700594815.git.agordeev@linux.ibm.com |
| Link: https://lkml.kernel.org/r/2eead241f3a45bed26c7911cf66bded1e35670b8.1700594815.git.agordeev@linux.ibm.com |
| Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> |
| Suggested-by: Heiko Carstens <hca@linux.ibm.com> |
| Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> |
| Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| include/linux/mm_types.h | 4 ++-- |
| 1 file changed, 2 insertions(+), 2 deletions(-) |
| |
| --- a/include/linux/mm_types.h~pgtable-fix-s390-ptdesc-field-comments |
| +++ a/include/linux/mm_types.h |
| @@ -401,11 +401,11 @@ FOLIO_MATCH(compound_head, _head_2a); |
| * @pmd_huge_pte: Protected by ptdesc->ptl, used for THPs. |
| * @__page_mapping: Aliases with page->mapping. Unused for page tables. |
| * @pt_mm: Used for x86 pgds. |
| - * @pt_frag_refcount: For fragmented page table tracking. Powerpc and s390 only. |
| + * @pt_frag_refcount: For fragmented page table tracking. Powerpc only. |
| * @_pt_pad_2: Padding to ensure proper alignment. |
| * @ptl: Lock for the page table. |
| * @__page_type: Same as page->page_type. Unused for page tables. |
| - * @_refcount: Same as page refcount. Used for s390 page tables. |
| + * @_refcount: Same as page refcount. |
| * @pt_memcg_data: Memcg data. Tracked for page tables here. |
| * |
| * This struct overlays struct page for now. Do not modify without a good |
| _ |
