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| author | Li RongQing <roy.qing.li@gmail.com> | 2015-04-22 12:09:54 +0300 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2015-04-23 12:36:06 +0300 |
| commit | 800777026eeb33585f29608c2c6131fc66d2e218 (patch) | |
| tree | 23aca36cb198fa486dbb67e7ee28191e1f597db3 /net/xfrm | |
| parent | 1ee5e6676bccbf7a035d8d35c143f1a61e602198 (diff) | |
| download | linux-800777026eeb33585f29608c2c6131fc66d2e218.tar.xz | |
xfrm: optimise the use of walk list header in xfrm_policy/state_walk
The walk from input is the list header, and marked as dead, and will
be skipped in loop.
list_first_entry() can be used to return the true usable value from
walk if walk is not empty
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 4 | ||||
| -rw-r--r-- | net/xfrm/xfrm_state.c | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index d8c35ad4210d..847053ec7d91 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1004,7 +1004,9 @@ int xfrm_policy_walk(struct net *net, struct xfrm_policy_walk *walk, if (list_empty(&walk->walk.all)) x = list_first_entry(&net->xfrm.policy_all, struct xfrm_policy_walk_entry, all); else - x = list_entry(&walk->walk.all, struct xfrm_policy_walk_entry, all); + x = list_first_entry(&walk->walk.all, + struct xfrm_policy_walk_entry, all); + list_for_each_entry_from(x, &net->xfrm.policy_all, all) { if (x->dead) continue; diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index f5e39e35d73a..df9318301e98 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1626,7 +1626,7 @@ int xfrm_state_walk(struct net *net, struct xfrm_state_walk *walk, if (list_empty(&walk->all)) x = list_first_entry(&net->xfrm.state_all, struct xfrm_state_walk, all); else - x = list_entry(&walk->all, struct xfrm_state_walk, all); + x = list_first_entry(&walk->all, struct xfrm_state_walk, all); list_for_each_entry_from(x, &net->xfrm.state_all, all) { if (x->state == XFRM_STATE_DEAD) continue; |