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d=arm.com; s=foss; t=1788241502; bh=tmJo3rjw0Sr3OV0lC41Li6x3+cmR1t0LVTih0JfnMfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mxQNKj4Wb0AEhmFu9i0suaBsQYFruZECm4SWTseJP7rcY2W3tIcJc2YI9lEycAGbN ZsPZbxPAQokrm2WN4mK1Ud3PO6iU7lcQ+kcXpB4dNkc5H19R67JsXBZnnUMZTQD+38 NeY2MAeNqKc1GX+dQ6Zfqt+VNWjlIMJLzoHmT2n0= From: Dev Jain To: akpm@linux-foundation.org, david@kernel.org, ljs@kernel.org, hughd@google.com, chrisl@kernel.org, kasong@tencent.com Cc: Dev Jain , 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 v2 7/8] mm/memory: use set_softleaf_ptes for uffd-wp markers Date: Tue, 1 Sep 2026 05:43:54 +0000 Message-ID: <20260901054358.4049095-8-dev.jain@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260901054358.4049095-1-dev.jain@arm.com> References: <20260901054358.4049095-1-dev.jain@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 59DFB140003 X-Stat-Signature: f6aifjqhhnmn3gdxxetwy7w9kyce6pm3 X-Rspam-User: X-HE-Tag: 1788241503-604905 X-HE-Meta: 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 Wt5QUPgY FUisZJD0kJwBkR7RxjrUpDllXL+hANQlaZe29EvVUYQ7WTyotdglARZKVfF0f294+rkGN+sy0X522sR6pigCIOpa5FVj5r51cY1KnWs4zcxeAp1VG/g2jQfGOfGB2e/ACgWeGVDYhAkFCpLD4OLUt9YwSdcJW9IIVfEJCxooCc7dYExeMPIpBjRLq+tVKanCnzNwiHXOy0tUWflm8qWtoOuxHiZxQ7M7ZVpkJ/E0XJ0iDf20OfZqvspnJ6rGXaFoMe38k0TP/kezgoXeLOCD7lvPEspMiCBggeJB1 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Use set_softleaf_ptes() to store multiple uffd-wp marker entries instead of open coding the batched setting. Signed-off-by: Dev Jain --- mm/memory.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 7ce8413a8117d..8c45fb25fd8dd 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1737,14 +1737,8 @@ 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