On Fri, Nov 10, 2023 at 11:33:19AM +0800, Kefeng Wang wrote:
> Replace nine compound_head() calls with one page_folio().
>
Sorry to echo Matthew, but this commit message is extremely
insufficient and just outright wrong.
Single pass through, here's the real change list:
1) changes PageFLAG() calls to folio_test_FLAG calls
2) changes compound_head() flag checks to folio_test_FLAG checks
3) change page count to folio ref count
-- without even looking... is this even correct? Need more
explanation here. Is page count === folio ref count?
So there are really 3 changes in this patch set that should be broken
out separately, even if they all depend on folio flags, because they
need separate explanation and validation for correctness.
> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
> ---
> fs/proc/page.c | 20 ++++++++++----------
> 1 file changed, 10 insertions(+), 10 deletions(-)
>
