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zcomp::stream is a per-CPU pointer, pointing to struct zcomp_strm which contains two pointers. Having struct zcomp_strm allocated directly as per-CPU memory would avoid one additional memory allocation and a pointer dereference. This also simplifies the addition of a local_lock to struct zcomp_strm. Allocate zcomp::stream directly as per-CPU memory. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20200527201119.1692513-7-bigeasy@linutronix.de