[RFC PATCH 22/37] mm: enable speculative fault handling through do_swap_page()

[Michel Lespinasse]

Change do_swap_page() to allow speculative fault execution to proceed.

Signed-off-by: Michel Lespinasse <michel@xxxxxxxxxxxxxx>
---
 mm/memory.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index ab3160719bf3..6eddd7b4e89c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3340,11 +3340,6 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
 	vm_fault_t ret = 0;
 	void *shadow = NULL;
 
-	if (vmf->flags & FAULT_FLAG_SPECULATIVE) {
-		pte_unmap(vmf->pte);
-		return VM_FAULT_RETRY;
-	}
-
 #if defined(CONFIG_SMP) || defined(CONFIG_PREEMPTION)
 	if (sizeof(pte_t) > sizeof(unsigned long)) {
 		/*
-- 
2.20.1