The patch titled Subject: kselftest/vm: fix tests build with old libc has been added to the -mm tree. Its filename is kselftest-vm-fix-tests-build-with-old-libc.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/kselftest-vm-fix-tests-build-with-old-libc.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/kselftest-vm-fix-tests-build-with-old-libc.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx> Subject: kselftest/vm: fix tests build with old libc The error message when I build vm tests on debian10 (GLIBC 2.28): userfaultfd.c: In function `userfaultfd_pagemap_test': userfaultfd.c:1393:37: error: `MADV_PAGEOUT' undeclared (first use in this function); did you mean `MADV_RANDOM'? if (madvise(area_dst, test_pgsize, MADV_PAGEOUT)) ^~~~~~~~~~~~ MADV_RANDOM This patch includes these newer definitions from UAPI linux/mman.h, is useful to fix tests build on systems without these definitions in glibc sys/mman.h. Link: https://lkml.kernel.org/r/20220227055330.43087-2-zhouchengming@xxxxxxxxxxxxx Signed-off-by: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/vm/userfaultfd.c | 1 + 1 file changed, 1 insertion(+) --- a/tools/testing/selftests/vm/userfaultfd.c~kselftest-vm-fix-tests-build-with-old-libc +++ a/tools/testing/selftests/vm/userfaultfd.c @@ -46,6 +46,7 @@ #include <signal.h> #include <poll.h> #include <string.h> +#include <linux/mman.h> #include <sys/mman.h> #include <sys/syscall.h> #include <sys/ioctl.h> _ Patches currently in -mm which might be from zhouchengming@xxxxxxxxxxxxx are kselftest-vm-override-targets-from-arguments.patch kselftest-vm-fix-tests-build-with-old-libc.patch