kaiser: add "nokaiser" boot option, using ALTERNATIVE

[android-x86/kernel.git] / arch / x86 / mm / tlb.c

diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 7759b65..e7934ae 100644 (file)
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -39,8 +39,7 @@ static void load_new_mm_cr3(pgd_t *pgdir)
 {
        unsigned long new_mm_cr3 = __pa(pgdir);
 
-#ifdef CONFIG_KAISER
-       if (this_cpu_has(X86_FEATURE_PCID)) {
+       if (kaiser_enabled && this_cpu_has(X86_FEATURE_PCID)) {
                /*
                 * We reuse the same PCID for different tasks, so we must
                 * flush all the entries for the PCID out when we change tasks.
@@ -57,7 +56,6 @@ static void load_new_mm_cr3(pgd_t *pgdir)
                new_mm_cr3 |= X86_CR3_PCID_KERN_FLUSH;
                kaiser_flush_tlb_on_return_to_user();
        }
-#endif /* CONFIG_KAISER */
 
        /*
         * Caution: many callers of this function expect