Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>
CC:     Song Liu <songliubraving@fb.com>,
        Davidlohr Bueso <dave@stgolabs.net>,
        "Paul E . McKenney" <paulmck@kernel.org>,
        Matthew Wilcox <willy@infradead.org>,
        Laurent Dufour <ldufour@linux.ibm.com>,
        David Rientjes <rientjes@google.com>,
        Axel Rasmussen <axelrasmussen@google.com>,
        Suren Baghdasaryan <surenb@google.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Rik van Riel <riel@surriel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Michel Lespinasse <walken.cr@gmail.com>,
        Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH 69/94] kernel/acct: Use maple tree iterators instead of linked
 list
Thread-Topic: [PATCH 69/94] kernel/acct: Use maple tree iterators instead of
 linked list
Thread-Index: AQHXPEQ9tY/56IFiC063oZwYqAVPwg==
Date:   Wed, 28 Apr 2021 15:36:22 +0000
Message-ID: <20210428153542.2814175-70-Liam.Howlett@Oracle.com>
References: <20210428153542.2814175-1-Liam.Howlett@Oracle.com>
In-Reply-To: <20210428153542.2814175-1-Liam.Howlett@Oracle.com>
Accept-Language: en-US
Content-Language: en-US
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 7314be04-8273-4567-5206-08d90a5b83fa
X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Apr 2021 15:36:22.1173
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: 2YmGP8fHtdd6RhdhOlk7G1uRtBSstTaD9fp8y+QO5/ajmJw9uA4Mtr2t5VZWY8W5AxpHMBTIJH/rr1j2WnPw2A==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4515
X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9968 signatures=668683
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 phishscore=0 spamscore=0
 mlxlogscore=999 malwarescore=0 bulkscore=0 adultscore=0 mlxscore=0
 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104060000
 definitions=main-2104280101
X-Proofpoint-GUID: DjvgGnqbNpVzvhglmzZDsN917t_CAyFN
X-Proofpoint-ORIG-GUID: DjvgGnqbNpVzvhglmzZDsN917t_CAyFN
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 kernel/acct.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/acct.c b/kernel/acct.c
index a64102be2bb0..82c79cab4faf 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -534,16 +534,16 @@ void acct_collect(long exitcode, int group_dead)
 	struct pacct_struct *pacct =3D &current->signal->pacct;
 	u64 utime, stime;
 	unsigned long vsize =3D 0;
+	MA_STATE(mas, &current->mm->mm_mt, 0, 0);
=20
 	if (group_dead && current->mm) {
 		struct vm_area_struct *vma;
=20
 		mmap_read_lock(current->mm);
-		vma =3D current->mm->mmap;
-		while (vma) {
+		rcu_read_lock();
+		mas_for_each(&mas, vma, ULONG_MAX)
 			vsize +=3D vma->vm_end - vma->vm_start;
-			vma =3D vma->vm_next;
-		}
+		rcu_read_unlock();
 		mmap_read_unlock(current->mm);
 	}
=20
--=20
2.30.2