| From foo@baz Wed Dec 6 18:04:41 CET 2017 |
| From: Kees Cook <keescook@chromium.org> |
| Date: Sat, 2 Sep 2017 13:09:46 -0700 |
| Subject: locking/refcounts, x86/asm: Enable CONFIG_ARCH_HAS_REFCOUNT |
| |
| From: Kees Cook <keescook@chromium.org> |
| |
| |
| [ Upstream commit 39208aa7ecb7d9c4e86df782b5693270313cbab1 ] |
| |
| With the section inlining bug fixed for the x86 refcount protection, |
| we can turn the config back on. |
| |
| Signed-off-by: Kees Cook <keescook@chromium.org> |
| Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> |
| Cc: Elena <elena.reshetova@intel.com> |
| Cc: Linus Torvalds <torvalds@linux-foundation.org> |
| Cc: Mike Galbraith <efault@gmx.de> |
| Cc: Peter Zijlstra <peterz@infradead.org> |
| Cc: Thomas Gleixner <tglx@linutronix.de> |
| Cc: linux-arch <linux-arch@vger.kernel.org> |
| Link: http://lkml.kernel.org/r/1504382986-49301-3-git-send-email-keescook@chromium.org |
| Signed-off-by: Ingo Molnar <mingo@kernel.org> |
| Signed-off-by: Sasha Levin <alexander.levin@verizon.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| arch/x86/Kconfig | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/arch/x86/Kconfig |
| +++ b/arch/x86/Kconfig |
| @@ -56,7 +56,7 @@ config X86 |
| 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 if BROKEN |
| + select ARCH_HAS_REFCOUNT |
| select ARCH_HAS_UACCESS_FLUSHCACHE if X86_64 |
| select ARCH_HAS_SET_MEMORY |
| select ARCH_HAS_SG_CHAIN |
