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    Subject[PATCH 02/14] arch/tile: provide a definition of MAP_STACK
    It's convenient for userspace (in particular, glibc) to find a
    definition of MAP_STACK. We use MAP_GROWSDOWN as an alias since
    that's appropriate for the main stack, and since our current
    allocation of mmap flags bits is running a bit short otherwise.

    Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
    ---
    arch/tile/include/asm/mman.h | 1 +
    1 files changed, 1 insertions(+), 0 deletions(-)

    diff --git a/arch/tile/include/asm/mman.h b/arch/tile/include/asm/mman.h
    index 4c6811e..81b8fc3 100644
    --- a/arch/tile/include/asm/mman.h
    +++ b/arch/tile/include/asm/mman.h
    @@ -23,6 +23,7 @@
    #define MAP_POPULATE 0x0040 /* populate (prefault) pagetables */
    #define MAP_NONBLOCK 0x0080 /* do not block on IO */
    #define MAP_GROWSDOWN 0x0100 /* stack-like segment */
    +#define MAP_STACK MAP_GROWSDOWN /* provide convenience alias */
    #define MAP_LOCKED 0x0200 /* pages are locked */
    #define MAP_NORESERVE 0x0400 /* don't check for reservations */
    #define MAP_DENYWRITE 0x0800 /* ETXTBSY */
    --
    1.6.5.2


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