powerpc/mm: Export flush_all_mm()
With the optimizations introduced by commit a46cc7a9 ("powerpc/mm/radix: Improve TLB/PWC flushes"), flush_tlb_mm() no longer flushes the page walk cache (PWC) with radix. This patch introduces flush_all_mm(), which flushes everything, TLB and PWC, for a given mm. Signed-off-by:Frederic Barrat <fbarrat@linux.vnet.ibm.com> Reviewed-By:
Alistair Popple <alistair@popple.id.au> [mpe: Add a WARN_ON_ONCE() in the empty hash routines] Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
parent
5080332c
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