• Gerald Schaefer's avatar
    thp, x86: introduce HAVE_ARCH_TRANSPARENT_HUGEPAGE · 15626062
    Gerald Schaefer authored
    Cleanup patch in preparation for transparent hugepage support on s390.
    Adding new architectures to the TRANSPARENT_HUGEPAGE config option can
    make the "depends" line rather ugly, like "depends on (X86 || (S390 &&
    64BIT)) && MMU".
    
    This patch adds a HAVE_ARCH_TRANSPARENT_HUGEPAGE instead.  x86 already has
    MMU "def_bool y", so the MMU check is superfluous there and
    HAVE_ARCH_TRANSPARENT_HUGEPAGE can be selected in arch/x86/Kconfig.
    Signed-off-by: default avatarGerald Schaefer <gerald.schaefer@de.ibm.com>
    Cc: Ingo Molnar <mingo@kernel.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: "H. Peter Anvin" <hpa@zytor.com>
    Cc: Andrea Arcangeli <aarcange@redhat.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Hugh Dickins <hughd@google.com>
    Cc: Hillf Danton <dhillf@gmail.com>
    Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
    Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    15626062
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