diff mbox series

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

Message ID 20210407014502.24091-23-michel@lespinasse.org (mailing list archive)
State New, archived
Headers show
Series [RFC,01/37] mmap locking API: mmap_lock_is_contended returns a bool | expand

Commit Message

Michel Lespinasse April 7, 2021, 1:44 a.m. UTC 
Change do_swap_page() to allow speculative fault execution to proceed.

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

Patch

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)) {
 		/*