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This commit moves __srcu_read_lock_lite() and __srcu_read_unlock_lite() into include/linux/srcu.h and marks them "static inline" so that they can be inlined into srcu_read_lock_lite() and srcu_read_unlock_lite(), respectively. They are not hand-inlined due to Tree SRCU and Tiny SRCU having different implementations. The earlier removal of smp_mb() combined with the inlining produce significant single-percentage performance wins. Link: https://lore.kernel.org/all/CAEf4BzYgiNmSb=ZKQ65tm6nJDi1UX2Gq26cdHSH1mPwXJYZj5g@mail.gmail.com/ Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: <bpf@vger.kernel.org> Reviewed-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org>