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authorJann Horn <jannh@google.com>2018-02-19 20:50:39 +0300
committerIngo Molnar <mingo@kernel.org>2018-02-20 11:33:39 +0300
commit3b3a9268bba62b35a29bafe0931715b1725fdf26 (patch)
treed3833581153f47a1145c310beb6c030ac620986e
parent842cef9113c2120f74f645111ded1e020193d84c (diff)
downloadlinux-3b3a9268bba62b35a29bafe0931715b1725fdf26.tar.xz
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@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>
-rw-r--r--arch/x86/mm/fault.c4
1 files changed, 0 insertions, 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)))