| From 3b3a9268bba62b35a29bafe0931715b1725fdf26 Mon Sep 17 00:00:00 2001 |
| From: Jann Horn <jannh@google.com> |
| Date: Mon, 19 Feb 2018 18:50:39 +0100 |
| Subject: x86/mm: Remove stale comment about KMEMCHECK |
| |
| 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))) |
