Commit-ID: 3b3a9268bba62b35a29bafe0931715b1725fdf26
Gitweb: https://git.kernel.org/tip/3b3a9268bba62b35a29bafe0931715b1725fdf26
Author: Jann Horn <ja...@google.com>
AuthorDate: Mon, 19 Feb 2018 18:50:39 +0100
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 20 Feb 2018 09:33:39 +0100
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 <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>
---
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 800de81..c88573d 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)))
