locking/refcounts: Remove stale comment from the ARCH_HAS_REFCOUNT Kconfig entry

ARCH_HAS_REFCOUNT is no longer marked as broken ('if BROKEN'), so remove
the stale comment regarding it being broken.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20171229195303.17781-1-ebiggers3@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d4fc98c50378c40bc901f6446d2bfff68151eb6a..ff4e9cd998544c00db08b44f8dd0ee91b7a1ad58 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -55,7 +55,6 @@ config X86
        select ARCH_HAS_GCOV_PROFILE_ALL
        select ARCH_HAS_KCOV                    if X86_64
        select ARCH_HAS_PMEM_API                if X86_64
-       # Causing hangs/crashes, see the commit that added this change for details.
        select ARCH_HAS_REFCOUNT
        select ARCH_HAS_UACCESS_FLUSHCACHE      if X86_64
        select ARCH_HAS_SET_MEMORY