On 2023/11/3 20:28, Matthew Wilcox wrote:
On Fri, Nov 03, 2023 at 03:29:05PM +0800, Kefeng Wang wrote:
Replace ten compound_head() calls with one page_folio().
This is going to conflict with Gregory Price's work:
https://lore.kernel.org/linux-mm/ZUCD1dsbrFjdZgVv@xxxxxxxxxxxx/
Perhaps the two of you can collaborate on a patch series?
Will check this patch.
u |= kpf_copy_bit(k, KPF_SLAB, PG_slab);
- if (PageTail(page) && PageSlab(page))
+ if (PageTail(page) && folio_test_slab(folio))
u |= 1 << KPF_SLAB;
This doesn't make sense ...
Yes, after commit dcb351cd095a ("page-flags: define behavior SL*B-
related flags on compound pages"), the slab could not be a tail,
I will drop this line.
