From 3cd499366107041d4f9c2696f0cf099a894a082b Mon Sep 17 00:00:00 2001 From: Szabolcs Nagy Date: Mon, 13 Jul 2020 19:43:44 +0000 Subject: [PATCH 12/16] sys/mman.h: add MREMAP_DONTUNMAP from linux v5.7 it remaps anon mappings without unmapping the original. chromeos plans to use it with userfaultfd, see: linux commit e346b3813067d4b17383f975f197a9aa28a3b077 mm/mremap: add MREMAP_DONTUNMAP to mremap() --- include/sys/mman.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/sys/mman.h b/include/sys/mman.h index 3bade727..4d603e91 100644 --- a/include/sys/mman.h +++ b/include/sys/mman.h @@ -101,6 +101,7 @@ extern "C" { #ifdef _GNU_SOURCE #define MREMAP_MAYMOVE 1 #define MREMAP_FIXED 2 +#define MREMAP_DONTUNMAP 4 #define MLOCK_ONFAULT 0x01 -- 2.28.0