Re: [PATCH 0/3] virtio/vringh: kill off ACCESS_ONCE()
From: Peter Zijlstra <peterz@infradead.org>
Date: 2016-11-25 12:44:22
Also in:
kvm, lkml, virtualization
On Fri, Nov 25, 2016 at 01:40:44PM +0100, Peter Zijlstra wrote:
#define SINGLE_LOAD(x) \
{( \
compiletime_assert_atomic_type(typeof(x)); \Should be: compiletime_assert_atomic_type(x);
WARN_SINGLE_COPY_ALIGNMENT(&(x)); \
READ_ONCE(x); \
})
#define SINGLE_STORE(x, v) \
({ \
compiletime_assert_atomic_type(typeof(x)); \idem
WARN_SINGLE_COPY_ALIGNMENT(&(x)); \ WRITE_ONCE(x, v); \ })