4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jann Horn <ja...@google.com>

commit 3b3a9268bba62b35a29bafe0931715b1725fdf26 upstream.

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 <ja...@google.com>
Acked-by: Thomas Gleixner <t...@linutronix.de>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Brian Gerst <brge...@gmail.com>
Cc: Denys Vlasenko <dvlas...@redhat.com>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Josh Poimboeuf <jpoim...@redhat.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Link: http://lkml.kernel.org/r/20180219175039.253089-1-ja...@google.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 arch/x86/mm/fault.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1252,10 +1252,6 @@ __do_page_fault(struct pt_regs *regs, un
        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)))


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