On 11.07.24 20:54, Jason A. Donenfeld wrote:
On Thu, Jul 11, 2024 at 08:24:07PM +0200, David Hildenbrand wrote:
And PG_large_rmappable seems to only be used for hugetlb branches.
It should be set for THP/large folios.
And it's tested too, apparently.
Okay, well, how disappointing is this below? Because I'm running out of
tricks for flag reuse.
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index b9e914e1face..c1ea49a7f198 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -110,6 +110,7 @@ enum pageflags {
PG_workingset,
PG_error,
PG_owner_priv_1, /* Owner use. If pagecache, fs may use*/
+ PG_owner_priv_2,
Oh no, no new page flags please :)
Maybe just follow what Linux suggested: pass vma to pte_dirty() and
always return false for these special VMAs.
--
Cheers,
David / dhildenb
