mm/arm64: override clear_young_dirty_ptes() batch helper
authorLance Yang <ioworker0@gmail.com>
Thu, 18 Apr 2024 13:44:33 +0000 (21:44 +0800)
committerAndrew Morton <akpm@linux-foundation.org>
Mon, 6 May 2024 00:53:42 +0000 (17:53 -0700)
commit89e86854fb0aa6e20c0f3d88285fa9cedef4f4e0
tree6e881a37e074f07403a369c4518b8f637319a128
parent1b68112c40395b3b0fed3c8bb648e2d9d0b37ec2
mm/arm64: override clear_young_dirty_ptes() batch helper

The per-pte get_and_clear/modify/set approach would result in
unfolding/refolding for contpte mappings on arm64.  So we need to override
clear_young_dirty_ptes() for arm64 to avoid it.

Link: https://lkml.kernel.org/r/20240418134435.6092-3-ioworker0@gmail.com
Signed-off-by: Lance Yang <ioworker0@gmail.com>
Suggested-by: Barry Song <21cnbao@gmail.com>
Suggested-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jeff Xie <xiehuan09@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
arch/arm64/include/asm/pgtable.h
arch/arm64/mm/contpte.c