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ia64: expose number of page table levels on Kconfig level

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We would want to use number of page table level to define mm_struct.
Let's expose it as CONFIG_PGTABLE_LEVELS.

We need to define PGTABLE_LEVELS before sourcing init/Kconfig:
arch/Kconfig will define default value and it's sourced from init/Kconfig.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov
2015-04-14 15:45:45 -07:00
committed by Linus Torvalds
parent 1bcad26e9d
commit 4d66bcc7cf
6 changed files with 23 additions and 31 deletions
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4
arch/ia64/kernel/machine_kexec.c
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@@ -156,9 +156,9 @@ void arch_crash_save_vmcoreinfo(void)
VMCOREINFO_OFFSET(node_memblk_s, start_paddr);
VMCOREINFO_OFFSET(node_memblk_s, size);
#endif
#ifdef CONFIG_PGTABLE_3
#if CONFIG_PGTABLE_LEVELS == 3
VMCOREINFO_CONFIG(PGTABLE_3);
#elif defined(CONFIG_PGTABLE_4)
#elif CONFIG_PGTABLE_LEVELS == 4
VMCOREINFO_CONFIG(PGTABLE_4);
#endif
}