4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jann Horn jannh@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 jannh@google.com Acked-by: Thomas Gleixner tglx@linutronix.de Cc: Andy Lutomirski luto@kernel.org Cc: Borislav Petkov bp@alien8.de Cc: Brian Gerst brgerst@gmail.com Cc: Denys Vlasenko dvlasenk@redhat.com Cc: H. Peter Anvin hpa@zytor.com Cc: Josh Poimboeuf jpoimboe@redhat.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Link: http://lkml.kernel.org/r/20180219175039.253089-1-jannh@google.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@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)))