From: Chris Metcalf Date: Thu, 14 Oct 2010 19:09:02 +0000 (-0400) Subject: arch/tile: provide a definition of MAP_STACK X-Git-Tag: firefly_0821_release~7613^2~3626^2~12 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bbacff94d0c38163ef01361de006797c92e69e58;p=firefly-linux-kernel-4.4.55.git 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 --- diff --git a/arch/tile/include/asm/mman.h b/arch/tile/include/asm/mman.h index 4c6811e3e8dc..81b8fc348d63 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 */