[PATCH v2 01/13] barriers: Introduce smp_cond_load_relaxed and atomic_cond_read_relaxed

Whilst we currently provide smp_cond_load_acquire and atomic_cond_read_acquire, there are cases where the ACQUIRE semantics are not required because of a subsequent fence or release operation once the conditional loop has exited. This patch adds relaxed versions of the conditional spinning

[PATCH v2 01/13] barriers: Introduce smp_cond_load_relaxed and atomic_cond_read_relaxed

Whilst we currently provide smp_cond_load_acquire and atomic_cond_read_acquire, there are cases where the ACQUIRE semantics are not required because of a subsequent fence or release operation once the conditional loop has exited. This patch adds relaxed versions of the conditional spinning