linux-kernel - [PATCH] x86/mm: remove stale comment about kmemcheck

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Message-Id: <20180219175039.253089-1-jannh@google.com>
Date:   Mon, 19 Feb 2018 18:50:39 +0100
From:   Jann Horn <jannh@...gle.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] x86/mm: remove stale comment about kmemcheck

This comment referred to a conditional call to kmemcheck_hide() that was
here until commit 4950276672fc ("kmemcheck: remove annotations"). Now that
kmemcheck has been removed, it doesn't make sense anymore.

Signed-off-by: Jann Horn <jannh@...gle.com>
---
 arch/x86/mm/fault.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 800de815519c..c88573d90f3e 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1248,10 +1248,6 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	tsk = current;
 	mm = tsk->mm;
 
-	/*
-	 * Detect and handle instructions that would cause a page fault for
-	 * both a tracked kernel page and a userspace page.
-	 */
 	prefetchw(&mm->mmap_sem);
 
 	if (unlikely(kmmio_fault(regs, address)))
-- 
2.16.1.291.g4437f3f132-goog