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Wed, 28 Apr 2021 15:36:46 +0000 From: Liam Howlett To: "maple-tree@lists.infradead.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Andrew Morton CC: Song Liu , Davidlohr Bueso , "Paul E . McKenney" , Matthew Wilcox , Laurent Dufour , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Vlastimil Babka , Rik van Riel , Peter Zijlstra , Michel Lespinasse , Liam Howlett Subject: [PATCH 55/94] arch/powerpc: Remove mmap linked list from mm/book3s32/tlb Thread-Topic: [PATCH 55/94] arch/powerpc: Remove mmap linked list from mm/book3s32/tlb Thread-Index: AQHXPEQ5yqMQ+4LCgk2H5dMsxH8uuQ== Date: Wed, 28 Apr 2021 15:36:15 +0000 Message-ID: <20210428153542.2814175-56-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 X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.30.2 authentication-results: lists.infradead.org; dkim=none (message not signed) header.d=none;lists.infradead.org; dmarc=none action=none header.from=oracle.com; x-originating-ip: [23.233.25.87] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 08d10088-6c66-44ee-8d91-08d90a5b6eec x-ms-traffictypediagnostic: CO1PR10MB4515: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7219; 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Howlett --- arch/powerpc/mm/book3s32/tlb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/book3s32/tlb.c b/arch/powerpc/mm/book3s32/tlb.c index 19f0ef950d77..2c8b991de8e8 100644 --- a/arch/powerpc/mm/book3s32/tlb.c +++ b/arch/powerpc/mm/book3s32/tlb.c @@ -81,6 +81,7 @@ EXPORT_SYMBOL(hash__flush_range); void hash__flush_tlb_mm(struct mm_struct *mm) { struct vm_area_struct *mp; + MA_STATE(mas, &mm->mm_mt, 0, 0); /* * It is safe to go down the mm's list of vmas when called @@ -88,8 +89,10 @@ void hash__flush_tlb_mm(struct mm_struct *mm) * unmap_region or exit_mmap, but not from vmtruncate on SMP - * but it seems dup_mmap is the only SMP case which gets here. */ - for (mp = mm->mmap; mp != NULL; mp = mp->vm_next) + rcu_read_lock(); + mas_for_each(&mas, mp, ULONG_MAX) hash__flush_range(mp->vm_mm, mp->vm_start, mp->vm_end); + rcu_read_unlock(); } EXPORT_SYMBOL(hash__flush_tlb_mm);