From: Dev Jain <dev.jain@arm.com>
To: akpm@linux-foundation.org, david@kernel.org, ljs@kernel.org,
hughd@google.com, chrisl@kernel.org, kasong@tencent.com
Cc: Dev Jain <dev.jain@arm.com>,
riel@surriel.com, liam@infradead.org, vbabka@kernel.org,
harry@kernel.org, jannh@google.com, lance.yang@linux.dev,
baolin.wang@linux.alibaba.com, shikemeng@huaweicloud.com,
nphamcs@gmail.com, baoquan.he@linux.dev, baohua@kernel.org,
youngjun.park@lge.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, rppt@kernel.org, surenb@google.com,
mhocko@suse.com, pfalcato@suse.de, ryan.roberts@arm.com,
anshuman.khandual@arm.com
Subject: [PATCH 6/8] mm/memory: use set_softleaf_ptes for uffd-wp markers
Date: Thu, 23 Jul 2026 07:09:02 +0000 [thread overview]
Message-ID: <20260723070905.3422276-7-dev.jain@arm.com> (raw)
In-Reply-To: <20260723070905.3422276-1-dev.jain@arm.com>
Use set_softleaf_ptes() to store multiple uffd-wp marker entries instead
of open coding the batched setting.
Signed-off-by: Dev Jain <dev.jain@arm.com>
---
mm/memory.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index 7a8442fda0b51..390ea3aefbccb 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1733,14 +1733,8 @@ bool cond_install_uffd_wp_ptes(struct vm_area_struct *vma,
if (likely(!arm_uffd_pte))
return false;
- for (;;) {
- set_pte_at(vma->vm_mm, addr, ptep,
- make_pte_marker(PTE_MARKER_UFFD_WP));
- if (--nr_ptes == 0)
- break;
- ptep++;
- addr += PAGE_SIZE;
- }
+ set_softleaf_ptes(vma->vm_mm, addr, ptep,
+ make_pte_marker(PTE_MARKER_UFFD_WP), nr_ptes);
return true;
}
--
2.43.0
next prev parent reply other threads:[~2026-07-23 7:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-23 7:08 [PATCH 0/8] Optimize anonymous swapbacked large folio unmapping Dev Jain
2026-07-23 7:08 ` [PATCH 1/8] mm/swapfile: add batched version of folio_dup_swap Dev Jain
2026-07-23 7:08 ` [PATCH 2/8] mm/swapfile: add batched version of folio_put_swap Dev Jain
2026-07-23 7:08 ` [PATCH 3/8] mm/rmap: mm/rmap: Add batched version of folio_try_share_anon_rmap_pte Dev Jain
2026-07-23 7:09 ` [PATCH 4/8] mm/internal: rename swap offset helpers to softleaf offset Dev Jain
2026-07-23 7:09 ` [PATCH 5/8] mm/internal: add set_softleaf_ptes Dev Jain
2026-07-23 7:09 ` Dev Jain [this message]
2026-07-23 7:09 ` [PATCH 7/8] mm: move anon-exclusive batch helper to internal.h Dev Jain
2026-07-23 7:09 ` [PATCH 8/8] mm/rmap: batch unmap anonymous swap-backed large folios Dev Jain
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