From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 4 Feb 2008 15:48:08 +0000 (+0100)
Subject: x86: remove cpa warning
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6ce9fc17d913ae51f8434d2826f306347820b07d;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

x86: remove cpa warning

this race is legit and can happen on SMP systems.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 72880993af89..0b029c97174e 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -356,10 +356,8 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 	 * up for us already:
 	 */
 	tmp = lookup_address(address, &level);
-	if (tmp != kpte) {
-		WARN_ON_ONCE(1);
+	if (tmp != kpte)
 		goto out_unlock;
-	}
 
 	address = __pa(address);
 	addr = address & PMD_PAGE_MASK;