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Date: Fri, 20 Nov 2020 09:20:43 -0800 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Will Deacon <will@...nel.org> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Android Kernel Team <kernel-team@...roid.com>, Catalin Marinas <catalin.marinas@....com>, Yu Zhao <yuzhao@...gle.com>, Minchan Kim <minchan@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Anshuman Khandual <anshuman.khandual@....com>, Linux-MM <linux-mm@...ck.org>, Linux ARM <linux-arm-kernel@...ts.infradead.org> Subject: Re: [PATCH 3/6] tlb: mmu_gather: Remove unused start/end arguments from tlb_finish_mmu() On Fri, Nov 20, 2020 at 6:36 AM Will Deacon <will@...nel.org> wrote: > > tlb_finish_mmu() takes two confusing and unused 'start'/'end' address > arguments. Remove them. Ack, but please add the history to it. Those arguments were used, up until 7a30df49f63a ("mm: mmu_gather: remove __tlb_reset_range() for force flush"). And the thing is, using a range flush in theory might be better, but for simplicity it's now doing a "fullmm" one, which is why those arguments no longer matter. (And I think we track the range better now too, which may be another reason they aren't needed) Linus Linus
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