diff options
| -rw-r--r-- | arch/x86/include/asm/proto.h | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/process.c | 6 | ||||
| -rw-r--r-- | arch/x86/kernel/process_64.c | 8 |
3 files changed, 16 insertions, 1 deletions
diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h index 4e276f6cb1c1..8d3964fc5f91 100644 --- a/arch/x86/include/asm/proto.h +++ b/arch/x86/include/asm/proto.h @@ -31,4 +31,7 @@ void x86_report_nx(void); extern int reboot_force; +long do_arch_prctl_common(struct task_struct *task, int option, + unsigned long cpuid_enabled); + #endif /* _ASM_X86_PROTO_H */ diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 366db7782fc6..b12e95eceb83 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -545,3 +545,9 @@ out: put_task_stack(p); return ret; } + +long do_arch_prctl_common(struct task_struct *task, int option, + unsigned long cpuid_enabled) +{ + return -EINVAL; +} diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index e37f764c11cc..d81b0a60a45c 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -626,7 +626,13 @@ long do_arch_prctl_64(struct task_struct *task, int option, unsigned long arg2) SYSCALL_DEFINE2(arch_prctl, int, option, unsigned long, arg2) { - return do_arch_prctl_64(current, option, arg2); + long ret; + + ret = do_arch_prctl_64(current, option, arg2); + if (ret == -EINVAL) + ret = do_arch_prctl_common(current, option, arg2); + + return ret; } unsigned long KSTK_ESP(struct task_struct *task) |