linux-kernel - [RFC PATCH 04/18] mm: convert to use ptep_clear() in pte_clear_not_present

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220429133552.33768-5-zhengqi.arch@bytedance.com>
Date:   Fri, 29 Apr 2022 21:35:38 +0800
From:   Qi Zheng <zhengqi.arch@...edance.com>
To:     akpm@...ux-foundation.org, tglx@...utronix.de,
        kirill.shutemov@...ux.intel.com, mika.penttila@...tfour.com,
        david@...hat.com, jgg@...dia.com, tj@...nel.org, dennis@...nel.org,
        ming.lei@...hat.com
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, songmuchun@...edance.com,
        zhouchengming@...edance.com, Qi Zheng <zhengqi.arch@...edance.com>
Subject: [RFC PATCH 04/18] mm: convert to use ptep_clear() in pte_clear_not_present_full()

After commit 08d5b29eac7d ("mm: ptep_clear() page table helper"),
the ptep_clear() can be used to track the clearing of PTE page
table entries, but pte_clear_not_present_full() is not covered,
so also convert it to use ptep_clear(), we will need this call
in subsequent patches.

Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>
---
 include/linux/pgtable.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index f4f4077b97aa..bed9a559d45b 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -423,7 +423,7 @@ static inline void pte_clear_not_present_full(struct mm_struct *mm,
 					      pte_t *ptep,
 					      int full)
 {
-	pte_clear(mm, address, ptep);
+	ptep_clear(mm, address, ptep);
 }
 #endif
 
-- 
2.20.1