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SubjectRe: [RFC PATCH 1/2] mm: move tlb_table_flush to tlb_flush_mmu_free
On Thu, Sep 06, 2018 at 04:29:59PM -0400, Rik van Riel wrote:
> On Thu, 2018-08-23 at 18:47 +1000, Nicholas Piggin wrote:
> > There is no need to call this from tlb_flush_mmu_tlbonly, it
> > logically belongs with tlb_flush_mmu_free. This allows some
> > code consolidation with a subsequent fix.
> >
> > Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
>
> Reviewed-by: Rik van Riel <riel@surriel.com>
>
> This patch also fixes an infinite recursion bug
> with CONFIG_HAVE_RCU_TABLE_FREE enabled, which
> has this call trace:
>
> tlb_table_flush
> -> tlb_table_invalidate
> -> tlb_flush_mmu_tlbonly
> -> tlb_table_flush
> -> ... (infinite recursion)
>
> This should probably be applied sooner rather than
> later.

It's already in mainline with a cc stable afaict.

Will

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