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authorPatrick McHardy <kaber@trash.net>2008-11-19 08:03:09 +0000
committerDavid S. Miller <davem@davemloft.net>2008-11-20 04:14:28 -0800
commit47a1a1d4be2910b13a8e90f75c17e253c39531ff (patch)
treec900f283bd96f0b26236152ada24f9a113f65e2b /net/sched/cls_basic.c
parentb94c8afcba3ae6584653b98e315446ea83be6ea5 (diff)
downloadop-kernel-dev-47a1a1d4be2910b13a8e90f75c17e253c39531ff.zip
op-kernel-dev-47a1a1d4be2910b13a8e90f75c17e253c39531ff.tar.gz
pkt_sched: remove unnecessary xchg() in packet classifiers
The use of xchg() hasn't been necessary since 2.2.something when proper locking was added to packet schedulers. In the case of classifiers they mostly weren't even necessary before that since they're mainly used to assign a NULL pointer to the filter root in the ->destroy path; the root is destroyed immediately after that. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_basic.c')
-rw-r--r--net/sched/cls_basic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index 956915c..4e2bda8 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -102,7 +102,7 @@ static inline void basic_delete_filter(struct tcf_proto *tp,
static void basic_destroy(struct tcf_proto *tp)
{
- struct basic_head *head = (struct basic_head *) xchg(&tp->root, NULL);
+ struct basic_head *head = tp->root;
struct basic_filter *f, *n;
list_for_each_entry_safe(f, n, &head->flist, link) {
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