[PATCH 1/3] mm: pgtable: correct the wrong comment about ptdesc->__page_flags

Qi Zheng
2024-03-04T11:08:15Z

The commit 32cc0b7c9d50 ("powerpc: add pte_free_defer() for pgtables
sharing page") introduced the use of PageActive flag to page table
fragments tracking, so the ptdesc->__page_flags is not unused, so
correct the wrong comment.

Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
---
include/linux/mm_types.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index a7223ba3ea1e..5ea77969daae 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -419,7 +419,7 @@ FOLIO_MATCH(compound_head, _head_2a);

/**
* struct ptdesc - Memory descriptor for page tables.
- * @__page_flags: Same as page flags. Unused for page tables.
+ * @__page_flags: Same as page flags. Powerpc only.
* @pt_rcu_head: For freeing page table pages.
* @pt_list: List of used page tables. Used for s390 and x86.
* @_pt_pad_1: Padding that aliases with page's compound head.
--
2.30.2