From 3561106278cddd2f007bd27fd4c3e90caaf14b43 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 14 Sep 2021 14:19:24 +0000 Subject: [PATCH] Add MADV_POPULATE_READ and MADV_POPULATE_WRITE from Linux 5.14 to bits/mman-linux.h Linux 5.14 adds constants MADV_POPULATE_READ and MADV_POPULATE_WRITE (with the same values on all architectures). Add these to glibc's bits/mman-linux.h. Tested for x86_64. --- sysdeps/unix/sysv/linux/bits/mman-linux.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h index 3b1ae418e0..31451c28d9 100644 --- a/sysdeps/unix/sysv/linux/bits/mman-linux.h +++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h @@ -89,6 +89,10 @@ # define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK. */ # define MADV_COLD 20 /* Deactivate these pages. */ # define MADV_PAGEOUT 21 /* Reclaim these pages. */ +# define MADV_POPULATE_READ 22 /* Populate (prefault) page tables + readable. */ +# define MADV_POPULATE_WRITE 23 /* Populate (prefault) page tables + writable. */ # define MADV_HWPOISON 100 /* Poison a page for testing. */ #endif