On Fri, Nov 20, 2020 at 6:36 AM Will Deacon [off-list ref] 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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