diff options
| author | Qi Zheng <zhengqi.arch@bytedance.com> | 2024-03-04 19:07:18 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-06 13:04:18 -0800 |
| commit | 22beb471b46a1a408720498f7895232edab559d1 (patch) | |
| tree | 826ef5c9d9c6fdfbb6c0ddf3c1c7fc8224075f10 /include/linux/mm_types.h | |
| parent | 72741db6836b4fc3c810e33a53f7cb9cf2cd48a7 (diff) | |
mm: pgtable: correct the wrong comment about ptdesc->__page_flags
Patch series "minor fixes and supplement for ptdesc".
In this series, the [PATCH 1/3] and [PATCH 2/3] are fixes for some issues
discovered during code inspection.
The [PATCH 3/3] is a supplement to ptdesc conversion in s390, I don't know
why this is not done in the commit 6326c26c1514 ("s390: convert various
pgalloc functions to use ptdescs"), maybe I missed something. And since I
don't have an s390 environment, I hope kernel test robot can help compile
and test, and this is why I did not fold [PATCH 2/3] and [PATCH 3/3] into
one patch.
This patch (of 3):
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.
Link: https://lkml.kernel.org/r/cover.1709541697.git.zhengqi.arch@bytedance.com
Link: https://lkml.kernel.org/r/cc42d5915fd98fd802f920de243f535efcfe01db.1709541697.git.zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 2 |
1 files changed, 1 insertions, 1 deletions
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. |