crypto: api - permit users to specify numa node of acomp hardware

For a Linux server with NUMA, there are possibly multiple (de)compressors which are either local or remote to some NUMA node. Some drivers will automatically use the (de)compressor near the CPU calling acomp_alloc(). However, it is not necessarily correct because users who send acomp_req could be from different NUMA node with the CPU which allocates acomp. Just like kernel has kmalloc() and kmalloc_node(), here crypto can have same support.

Barry Song committed 6 years ago

Commit 7bc13b51 parent 3347c8a5 files · +62 −13Browse files

Showing the changes to include/linux (1 of 5 files). Show all

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include/linux/crypto.h+2−0

@@ -594,6 +594,8 @@ int crypto_has_alg(const char *name, u32 type, u32 mask); · 593 unmodified lines
594	594	struct crypto_tfm {
595	595
596	596	u32 crt_flags;
	597	+
	598	+ int node;
597	599
598	600	void (exit)(struct crypto_tfm tfm);
599	601