diff options
Diffstat (limited to 'arch/x86/vdso/vdso32-setup.c')
| -rw-r--r-- | arch/x86/vdso/vdso32-setup.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c index 348f1341e1c8..e2af8eee80e3 100644 --- a/arch/x86/vdso/vdso32-setup.c +++ b/arch/x86/vdso/vdso32-setup.c @@ -210,8 +210,12 @@ static int use_sysenter __read_mostly = -1; /* May not be __init: called during resume */ void syscall32_cpu_init(void) { - if (use_sysenter < 0) - use_sysenter = (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL); + if (use_sysenter < 0) { + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) + use_sysenter = 1; + if (boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR) + use_sysenter = 1; + } /* Load these always in case some future AMD CPU supports SYSENTER from compat mode too. */ @@ -325,6 +329,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack) int ret = 0; bool compat; + if (vdso_enabled == VDSO_DISABLED) + return 0; + down_write(&mm->mmap_sem); /* Test compat mode once here, in case someone |