diff --git a/configure b/configure index 978505611b..429c938708 100755 --- a/configure +++ b/configure @@ -2408,6 +2408,18 @@ else pty_h=no fi +cat > $TMPC < +int main(int argc, char *argv[]) { + return mlockall(MCL_FUTURE); +} +EOF +if compile_prog "" "" ; then + have_mlockall=yes +else + have_mlockall=no +fi + ######################################### # vhost interdependencies and host support @@ -7902,6 +7914,9 @@ fi if test "$pty_h" = "yes" ; then echo "HAVE_PTY_H=y" >> $config_host_mak fi +if test "$have_mlockall" = "yes" ; then + echo "HAVE_MLOCKALL=y" >> $config_host_mak +fi if test "$fuzzing" = "yes" ; then if test "$have_fuzzer" = "yes"; then FUZZ_LDFLAGS=" -fsanitize=address,fuzzer" diff --git a/os-posix.c b/os-posix.c index 3cd52e1e70..b674b20b1b 100644 --- a/os-posix.c +++ b/os-posix.c @@ -337,6 +337,7 @@ bool is_daemonized(void) int os_mlock(void) { +#ifdef HAVE_MLOCKALL int ret = 0; ret = mlockall(MCL_CURRENT | MCL_FUTURE); @@ -345,4 +346,7 @@ int os_mlock(void) } return ret; +#else + return -ENOSYS; +#endif }