diff mbox series

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

Message ID cc42d5915fd98fd802f920de243f535efcfe01db.1709541697.git.zhengqi.arch@bytedance.com
State New
Headers
Series minor fixes and supplement for ptdesc |

Commit Message

Qi Zheng March 4, 2024, 11:07 a.m. UTC 
  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 mbox series

Patch

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.