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netfilter: nf_tables: asynchronous release

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Release the committed transaction log from a work queue, moving
expensive synchronize_rcu out of the locked section and providing
opportunity to batch this.

On my test machine this cuts runtime of nft-test.py in half.
Based on earlier patch from Pablo Neira Ayuso.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal
2018-08-29 14:41:32 +02:00
committed by Pablo Neira Ayuso
parent 0ef235c717
commit 0935d55884
2 changed files with 52 additions and 6 deletions
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2
include/net/netfilter/nf_tables.h
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@@ -1298,12 +1298,14 @@ static inline void nft_set_elem_clear_busy(struct nft_set_ext *ext)
*
* @list: used internally
* @msg_type: message type
* @put_net: ctx->net needs to be put
* @ctx: transaction context
* @data: internal information related to the transaction
*/
struct nft_trans {
struct list_head list;
int msg_type;
bool put_net;
struct nft_ctx ctx;
char data[0];
};