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powerpc/64s: mm_context.addr_limit is only used on hash

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Radix keeps no meaningful state in addr_limit, so remove it from radix
code and rename to slb_addr_limit to make it clear it applies to hash
only.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin
2017-11-10 04:27:40 +11:00
committed by Michael Ellerman
parent 85e3f1adcb
commit 4722476bce
11 changed files with 27 additions and 42 deletions
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4
arch/powerpc/mm/mmu_context_book3s64.c
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@@ -96,8 +96,8 @@ static int hash__init_new_context(struct mm_struct *mm)
* In the case of exec, use the default limit,
* otherwise inherit it from the mm we are duplicating.
*/
if (!mm->context.addr_limit)
mm->context.addr_limit = DEFAULT_MAP_WINDOW_USER64;
if (!mm->context.slb_addr_limit)
mm->context.slb_addr_limit = DEFAULT_MAP_WINDOW_USER64;
/*
* The old code would re-promote on fork, we don't do that when using