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Date: Tue, 5 Oct 2021 01:30:47 +0000 From: Liam Howlett <liam.howlett@...cle.com> To: "maple-tree@...ts.infradead.org" <maple-tree@...ts.infradead.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, David Hildenbrand <david@...hat.com>, Douglas Gilbert <dgilbert@...erlog.com> CC: Song Liu <songliubraving@...com>, Davidlohr Bueso <dave@...olabs.net>, "Paul E . McKenney" <paulmck@...nel.org>, Matthew Wilcox <willy@...radead.org>, David Rientjes <rientjes@...gle.com>, Axel Rasmussen <axelrasmussen@...gle.com>, Suren Baghdasaryan <surenb@...gle.com>, Vlastimil Babka <vbabka@...e.cz>, Rik van Riel <riel@...riel.com>, Peter Zijlstra <peterz@...radead.org> Subject: [PATCH v3 27/66] arch/powerpc: Remove mmap linked list from mm/book3s32/tlb From: "Liam R. Howlett" <Liam.Howlett@...cle.com> Start using the maple tree Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com> --- 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); -- 2.30.2
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