diff options
Diffstat (limited to 'arch/sh/kernel/vsyscall/vsyscall.c')
| -rw-r--r-- | arch/sh/kernel/vsyscall/vsyscall.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c index add35c51e017..1563dcc55fd3 100644 --- a/arch/sh/kernel/vsyscall/vsyscall.c +++ b/arch/sh/kernel/vsyscall/vsyscall.c @@ -14,6 +14,7 @@ #include <linux/module.h> #include <linux/elf.h> #include <linux/sched.h> +#include <linux/sysctl.h> #include <linux/err.h> /* @@ -30,6 +31,18 @@ static int __init vdso_setup(char *s) } __setup("vdso=", vdso_setup); +static const struct ctl_table vdso_table[] = { + { + .procname = "vdso_enabled", + .data = &vdso_enabled, + .maxlen = sizeof(vdso_enabled), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + }, +}; + /* * These symbols are defined by vsyscall.o to mark the bounds * of the ELF DSO images included therein. @@ -58,6 +71,14 @@ int __init vsyscall_init(void) return 0; } +static int __init vm_sysctl_init(void) +{ + register_sysctl_init("vm", vdso_table); + return 0; +} + +fs_initcall(vm_sysctl_init); + /* Setup a VMA at program startup for the vsyscall page */ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) { |