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SubjectRe: powerpc/mm/nohash: do not flush the entire mm when range is a single page
On Tue, 2018-01-23 at 13:22:50 UTC, Christophe Leroy wrote:
> Most of the time, flush_tlb_range() is called on single pages.
> At the time being, flush_tlb_range() inconditionnaly calls
> flush_tlb_mm() which flushes at least the entire PID pages and on
> older CPUs like 4xx or 8xx it flushes the entire TLB table.
> This patch calls flush_tlb_page() instead of flush_tlb_mm() when
> the range is a single page.
> Signed-off-by: Christophe Leroy <>

Applied to powerpc next, thanks.


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