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authorLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 08:25:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 08:25:51 -0700
commit9e9abecfc0ff3a9ad2ead954b37bbfcb863c775e (patch)
tree0c3ffda953b82750638a06507591ad587b565ff2 /arch/x86/vdso/vdso32-setup.c
parentd7bb545d86825e635cab33a1dd81ca0ad7b92887 (diff)
parent77ad386e596c6b0930cc2e09e3cce485e3ee7f72 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (613 commits) x86: standalone trampoline code x86: move suspend wakeup code to C x86: coding style fixes to arch/x86/kernel/acpi/sleep.c x86: setup_trampoline() - fix section mismatch warning x86: section mismatch fixes, #1 x86: fix paranoia about using BIOS quickboot mechanism. x86: print out buggy mptable x86: use cpu_online() x86: use cpumask_of_cpu() x86: remove unnecessary tmp local variable x86: remove unnecessary memset() x86: use ioapic_read_entry() and ioapic_write_entry() x86: avoid redundant loop in io_apic_level_ack_pending() x86: remove superfluous initialisation in boot code. x86: merge mpparse_{32,64}.c x86: unify mp_register_gsi x86: unify mp_config_acpi_legacy_irqs x86: unify mp_register_ioapic x86: unify uniq_io_apic_id x86: unify smp_scan_config ...
Diffstat (limited to 'arch/x86/vdso/vdso32-setup.c')
-rw-r--r--arch/x86/vdso/vdso32-setup.c11
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