dlan17/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: sched: make newly activated qdiscs visible

Browse Source 
In their .attach callback, mq[prio] only add the qdiscs of the currently
active TX queues to the device's qdisc hash list.
If a user later increases the number of active TX queues, their qdiscs
are not visible via eg. 'tc qdisc show'.

Add a hook to netif_set_real_num_tx_queues() that walks all active
TX queues and adds those which are missing to the hash list.

CC: Eric Dumazet <edumazet@google.com>
CC: Jamal Hadi Salim <jhs@mojatatu.com>
CC: Cong Wang <xiyou.wangcong@gmail.com>
CC: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann
2020-03-11 23:17:28 -07:00
committed by David S. Miller
parent dacf470b26
commit 4cda75275f
3 changed files with 28 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/net/sch_generic.h
+6
View File
@@ -153,6 +153,11 @@ static inline bool qdisc_is_empty(const struct Qdisc *qdisc)
return !READ_ONCE(qdisc->q.qlen);
}
static inline bool qdisc_hashed(struct Qdisc *qdisc)
{
return hash_hashed(&qdisc->hash);
}
static inline bool qdisc_run_begin(struct Qdisc *qdisc)
{
if (qdisc->flags & TCQ_F_NOLOCK) {
@@ -629,6 +634,7 @@ void qdisc_class_hash_grow(struct Qdisc *, struct Qdisc_class_hash *);
void qdisc_class_hash_destroy(struct Qdisc_class_hash *);
int dev_qdisc_change_tx_queue_len(struct net_device *dev);
void dev_qdisc_set_real_num_tx_queues(struct net_device *dev);
void dev_init_scheduler(struct net_device *dev);
void dev_shutdown(struct net_device *dev);
void dev_activate(struct net_device *dev);