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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 12:49:40 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 12:49:40 -0800 |
commit | 0191b625ca5a46206d2fb862bb08f36f2fcb3b31 (patch) | |
tree | 454d1842b1833d976da62abcbd5c47521ebe9bd7 /net/sched/sch_cbq.c | |
parent | 54a696bd07c14d3b1192d03ce7269bc59b45209a (diff) | |
parent | eb56092fc168bf5af199d47af50c0d84a96db898 (diff) | |
download | blackbird-op-linux-0191b625ca5a46206d2fb862bb08f36f2fcb3b31.tar.gz blackbird-op-linux-0191b625ca5a46206d2fb862bb08f36f2fcb3b31.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
net: Allow dependancies of FDDI & Tokenring to be modular.
igb: Fix build warning when DCA is disabled.
net: Fix warning fallout from recent NAPI interface changes.
gro: Fix potential use after free
sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
sfc: When disabling the NIC, close the device rather than unregistering it
sfc: SFT9001: Add cable diagnostics
sfc: Add support for multiple PHY self-tests
sfc: Merge top-level functions for self-tests
sfc: Clean up PHY mode management in loopback self-test
sfc: Fix unreliable link detection in some loopback modes
sfc: Generate unique names for per-NIC workqueues
802.3ad: use standard ethhdr instead of ad_header
802.3ad: generalize out mac address initializer
802.3ad: initialize ports LACPDU from const initializer
802.3ad: remove typedef around ad_system
802.3ad: turn ports is_individual into a bool
802.3ad: turn ports is_enabled into a bool
802.3ad: make ntt bool
ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
...
Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).
Diffstat (limited to 'net/sched/sch_cbq.c')
-rw-r--r-- | net/sched/sch_cbq.c | 76 |
1 files changed, 29 insertions, 47 deletions
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 03e389e8d945..9e43ed949167 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -405,40 +405,6 @@ cbq_enqueue(struct sk_buff *skb, struct Qdisc *sch) return ret; } -static int -cbq_requeue(struct sk_buff *skb, struct Qdisc *sch) -{ - struct cbq_sched_data *q = qdisc_priv(sch); - struct cbq_class *cl; - int ret; - - if ((cl = q->tx_class) == NULL) { - kfree_skb(skb); - sch->qstats.drops++; - return NET_XMIT_CN; - } - q->tx_class = NULL; - - cbq_mark_toplevel(q, cl); - -#ifdef CONFIG_NET_CLS_ACT - q->rx_class = cl; - cl->q->__parent = sch; -#endif - if ((ret = cl->q->ops->requeue(skb, cl->q)) == 0) { - sch->q.qlen++; - sch->qstats.requeues++; - if (!cl->next_alive) - cbq_activate_class(cl); - return 0; - } - if (net_xmit_drop_count(ret)) { - sch->qstats.drops++; - cl->qstats.drops++; - } - return ret; -} - /* Overlimit actions */ /* TC_CBQ_OVL_CLASSIC: (default) penalize leaf class by adding offtime */ @@ -1669,7 +1635,8 @@ static int cbq_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new, #endif } sch_tree_lock(sch); - *old = xchg(&cl->q, new); + *old = cl->q; + cl->q = new; qdisc_tree_decrease_qlen(*old, (*old)->q.qlen); qdisc_reset(*old); sch_tree_unlock(sch); @@ -1798,11 +1765,23 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **t } if (tb[TCA_CBQ_RATE]) { - rtab = qdisc_get_rtab(nla_data(tb[TCA_CBQ_RATE]), tb[TCA_CBQ_RTAB]); + rtab = qdisc_get_rtab(nla_data(tb[TCA_CBQ_RATE]), + tb[TCA_CBQ_RTAB]); if (rtab == NULL) return -EINVAL; } + if (tca[TCA_RATE]) { + err = gen_replace_estimator(&cl->bstats, &cl->rate_est, + qdisc_root_sleeping_lock(sch), + tca[TCA_RATE]); + if (err) { + if (rtab) + qdisc_put_rtab(rtab); + return err; + } + } + /* Change class parameters */ sch_tree_lock(sch); @@ -1810,8 +1789,8 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **t cbq_deactivate_class(cl); if (rtab) { - rtab = xchg(&cl->R_tab, rtab); - qdisc_put_rtab(rtab); + qdisc_put_rtab(cl->R_tab); + cl->R_tab = rtab; } if (tb[TCA_CBQ_LSSOPT]) @@ -1838,10 +1817,6 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **t sch_tree_unlock(sch); - if (tca[TCA_RATE]) - gen_replace_estimator(&cl->bstats, &cl->rate_est, - qdisc_root_sleeping_lock(sch), - tca[TCA_RATE]); return 0; } @@ -1888,6 +1863,17 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **t cl = kzalloc(sizeof(*cl), GFP_KERNEL); if (cl == NULL) goto failure; + + if (tca[TCA_RATE]) { + err = gen_new_estimator(&cl->bstats, &cl->rate_est, + qdisc_root_sleeping_lock(sch), + tca[TCA_RATE]); + if (err) { + kfree(cl); + goto failure; + } + } + cl->R_tab = rtab; rtab = NULL; cl->refcnt = 1; @@ -1929,10 +1915,6 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **t qdisc_class_hash_grow(sch, &q->clhash); - if (tca[TCA_RATE]) - gen_new_estimator(&cl->bstats, &cl->rate_est, - qdisc_root_sleeping_lock(sch), tca[TCA_RATE]); - *arg = (unsigned long)cl; return 0; @@ -2066,7 +2048,7 @@ static struct Qdisc_ops cbq_qdisc_ops __read_mostly = { .priv_size = sizeof(struct cbq_sched_data), .enqueue = cbq_enqueue, .dequeue = cbq_dequeue, - .requeue = cbq_requeue, + .peek = qdisc_peek_dequeued, .drop = cbq_drop, .init = cbq_init, .reset = cbq_reset, |