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    Subject[PATCH 4.15 084/146] x86/mm: Remove stale comment about KMEMCHECK
    Date
    4.15-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
    @@ -1248,10 +1248,6 @@ __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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