• K
    mm: define default PGTABLE_LEVELS to two · 235a8f02
    Kirill A. Shutemov 提交于
    By this time all architectures which support more than two page table
    levels should be covered.  This patch add default definiton of
    PGTABLE_LEVELS equal 2.
    
    We also add assert to detect inconsistence between CONFIG_PGTABLE_LEVELS
    and __PAGETABLE_PMD_FOLDED/__PAGETABLE_PUD_FOLDED.
    Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Tested-by: NGuenter Roeck <linux@roeck-us.net>
    Cc: Richard Henderson <rth@twiddle.net>
    Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
    Cc: Matt Turner <mattst88@gmail.com>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: "H. Peter Anvin" <hpa@zytor.com>
    Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Catalin Marinas <catalin.marinas@arm.com>
    Cc: Chris Metcalf <cmetcalf@ezchip.com>
    Cc: David Howells <dhowells@redhat.com>
    Cc: Fenghua Yu <fenghua.yu@intel.com>
    Cc: Geert Uytterhoeven <geert@linux-m68k.org>
    Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
    Cc: Helge Deller <deller@gmx.de>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Jeff Dike <jdike@addtoit.com>
    Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
    Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: Richard Weinberger <richard@nod.at>
    Cc: Russell King <linux@arm.linux.org.uk>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Tony Luck <tony.luck@intel.com>
    Cc: Will Deacon <will.deacon@arm.com>
    Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
    235a8f02
pgtable.h 19.5 KB