linux-kernel - [PATCH] mm/hmm.c : Remove additional check for lockdep_assert

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-next>] [day] [month] [year] [list]

Message-Id: <1584065460-22205-1-git-send-email-jrdr.linux@gmail.com>
Date:   Fri, 13 Mar 2020 07:41:00 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     jglisse@...hat.com, akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Souptick Joarder <jrdr.linux@...il.com>
Subject: [PATCH] mm/hmm.c : Remove additional check for lockdep_assert_held()

walk_page_range() already has a check for lockdep_assert_held().
So additional check for lockdep_assert_held() can be removed from
hmm_range_fault().

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
 mm/hmm.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/hmm.c b/mm/hmm.c
index 72e5a6d..b201e1e 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -681,7 +681,6 @@ long hmm_range_fault(struct hmm_range *range, unsigned int flags)
 	struct mm_struct *mm = range->notifier->mm;
 	int ret;
 
-	lockdep_assert_held(&mm->mmap_sem);
 
 	do {
 		/* If range is no longer valid force retry. */
-- 
1.9.1