Message ID | 20211005012959.1110504-64-Liam.Howlett@oracle.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Tue, 5 Oct 2021 01:31:57 +0000 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>, David Hildenbrand <david@redhat.com>, Douglas Gilbert <dgilbert@interlog.com> CC: Song Liu <songliubraving@fb.com>, Davidlohr Bueso <dave@stgolabs.net>, "Paul E . McKenney" <paulmck@kernel.org>, Matthew Wilcox <willy@infradead.org>, 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> Subject: [PATCH v3 63/66] s390: Use the maple tree iterator for vdso Thread-Topic: [PATCH v3 63/66] s390: Use the maple tree iterator for vdso Thread-Index: AQHXuYivwAYb+k6u/0auHS7iYjc0tw== Date: Tue, 5 Oct 2021 01:31:14 +0000 Message-ID: <20211005012959.1110504-64-Liam.Howlett@oracle.com> References: <20211005012959.1110504-1-Liam.Howlett@oracle.com> In-Reply-To: <20211005012959.1110504-1-Liam.Howlett@oracle.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.30.2 x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 5f17f406-99b1-4c69-0daf-08d9879fec11 x-ms-traffictypediagnostic: MN2PR10MB4288: x-microsoft-antispam-prvs: <MN2PR10MB4288E5EDA60E67848C661EE8FDAF9@MN2PR10MB4288.namprd10.prod.outlook.com> x-ms-oob-tlc-oobclassifiers: OLM:2958; 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Series |
Introducing the Maple Tree
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expand
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diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index 99694260cac9..26be77ed45c6 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -68,10 +68,11 @@ static struct page *find_timens_vvar_page(struct vm_area_struct *vma) int vdso_join_timens(struct task_struct *task, struct time_namespace *ns) { struct mm_struct *mm = task->mm; + MA_STATE(mas, &mm->mm_mt, 0, 0); struct vm_area_struct *vma; mmap_read_lock(mm); - for (vma = mm->mmap; vma; vma = vma->vm_next) { + mas_for_each(&mas, vma, ULONG_MAX) { unsigned long size = vma->vm_end - vma->vm_start; if (!vma_is_special_mapping(vma, &vvar_mapping))
remove vma->vm_next and use the maple tree mas_for_each iterator. Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> --- arch/s390/kernel/vdso.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)