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-rw-r--r--arch/x86/mm/pageattr.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 16ce841f08d6..c870424aa9ad 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -260,17 +260,6 @@ try_preserve_large_page(pte_t *kpte, unsigned long address,
260 pgprot_t old_prot, new_prot; 260 pgprot_t old_prot, new_prot;
261 int level, do_split = 1; 261 int level, do_split = 1;
262 262
263 /*
264 * An Athlon 64 X2 showed hard hangs if we tried to preserve
265 * largepages and changed the PSE entry from RW to RO.
266 *
267 * As AMD CPUs have a long series of erratas in this area,
268 * (and none of the known ones seem to explain this hang),
269 * disable this code until the hang can be debugged:
270 */
271 if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
272 return 1;
273
274 spin_lock_irqsave(&pgd_lock, flags); 263 spin_lock_irqsave(&pgd_lock, flags);
275 /* 264 /*
276 * Check for races, another CPU might have split this page 265 * Check for races, another CPU might have split this page