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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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94cb121c94
Add __percpu notations to UP percpu allocator. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
31 lines
711 B
C
31 lines
711 B
C
/*
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* mm/percpu_up.c - dummy percpu memory allocator implementation for UP
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*/
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#include <linux/module.h>
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#include <linux/percpu.h>
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#include <linux/slab.h>
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void __percpu *__alloc_percpu(size_t size, size_t align)
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{
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/*
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* Can't easily make larger alignment work with kmalloc. WARN
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* on it. Larger alignment should only be used for module
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* percpu sections on SMP for which this path isn't used.
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*/
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WARN_ON_ONCE(align > SMP_CACHE_BYTES);
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return (void __percpu __force *)kzalloc(size, GFP_KERNEL);
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}
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EXPORT_SYMBOL_GPL(__alloc_percpu);
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void free_percpu(void __percpu *p)
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{
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kfree(this_cpu_ptr(p));
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}
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EXPORT_SYMBOL_GPL(free_percpu);
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phys_addr_t per_cpu_ptr_to_phys(void *addr)
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{
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return __pa(addr);
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}
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