linux-kernel - [PATCH 09/16] mm/huge_memory: fix comment in zap_huge

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: <20220622170627.19786-10-linmiaohe@huawei.com>
Date:   Thu, 23 Jun 2022 01:06:20 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <shy828301@...il.com>, <willy@...radead.org>, <zokeefe@...gle.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH 09/16] mm/huge_memory: fix comment in zap_huge_pud

The comment about deposited pgtable is borrowed from zap_huge_pmd but
there's no deposited pgtable stuff for huge pud in zap_huge_pud. Remove
it to avoid confusion.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/huge_memory.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index b42c8fa51e46..fd12fa930937 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1914,12 +1914,7 @@ int zap_huge_pud(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	ptl = __pud_trans_huge_lock(pud, vma);
 	if (!ptl)
 		return 0;
-	/*
-	 * For architectures like ppc64 we look at deposited pgtable
-	 * when calling pudp_huge_get_and_clear. So do the
-	 * pgtable_trans_huge_withdraw after finishing pudp related
-	 * operations.
-	 */
+
 	pudp_huge_get_and_clear_full(tlb->mm, addr, pud, tlb->fullmm);
 	tlb_remove_pud_tlb_entry(tlb, pud, addr);
 	if (vma_is_special_huge(vma)) {
-- 
2.23.0