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arm64: mm: Remove vabits_user

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Previous patches have enabled 52-bit kernel + user VAs and there is no
longer any scenario where user VA != kernel VA size.

This patch removes the, now redundant, vabits_user variable and replaces
usage with vabits_actual where appropriate.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Steve Capper
2019-08-07 16:55:23 +01:00
committed by Will Deacon
parent b6d00d47e8
commit 2c624fe687
7 changed files with 5 additions and 16 deletions
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3
arch/arm64/mm/fault.c
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@@ -140,8 +140,7 @@ static void show_pte(unsigned long addr)
pr_alert("%s pgtable: %luk pages, %llu-bit VAs, pgdp=%016lx\n",
mm == &init_mm ? "swapper" : "user", PAGE_SIZE / SZ_1K,
mm == &init_mm ? vabits_actual : (int)vabits_user,
(unsigned long)virt_to_phys(mm->pgd));
vabits_actual, (unsigned long)virt_to_phys(mm->pgd));
pgdp = pgd_offset(mm, addr);
pgd = READ_ONCE(*pgdp);
pr_alert("[%016lx] pgd=%016llx", addr, pgd_val(pgd));