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author | Florian Westphal <fw@strlen.de> | 2022-01-07 07:03:25 +0300 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-01-10 01:30:13 +0300 |
commit | 6ae7989c9af0d98ab64196f4f4c6f6499454bd23 (patch) | |
tree | e351c62322a77c4fe66cb8382070fb5d69db0b63 /net/netfilter/nft_connlimit.c | |
parent | 285c8a7a58158cb1805c97ff03875df2ba2ea1fe (diff) | |
download | linux-6ae7989c9af0d98ab64196f4f4c6f6499454bd23.tar.xz |
netfilter: conntrack: avoid useless indirection during conntrack destruction
nf_ct_put() results in a usesless indirection:
nf_ct_put -> nf_conntrack_put -> nf_conntrack_destroy -> rcu readlock +
indirect call of ct_hooks->destroy().
There are two _put helpers:
nf_ct_put and nf_conntrack_put. The latter is what should be used in
code that MUST NOT cause a linker dependency on the conntrack module
(e.g. calls from core network stack).
Everyone else should call nf_ct_put() instead.
A followup patch will convert a few nf_conntrack_put() calls to
nf_ct_put(), in particular from modules that already have a conntrack
dependency such as act_ct or even nf_conntrack itself.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nft_connlimit.c')
0 files changed, 0 insertions, 0 deletions