diff options
| author | Li RongQing <lirongqing@baidu.com> | 2018-03-30 05:11:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-02 03:53:50 +0300 |
| commit | da01ec4ee5e69933641e6017d6461d0ce9dbfac6 (patch) | |
| tree | fbe3f9983d6d51d714df29e66c54459ad5ebb8c8 /net | |
| parent | ec1d8ccb07deaf30fd0508af6755364ac47dc08d (diff) | |
| download | linux-da01ec4ee5e69933641e6017d6461d0ce9dbfac6.tar.xz | |
net: sched: do not emit messages while holding spinlock
move messages emitting out of sch_tree_lock to avoid holding
this lock too long.
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sched/sch_htb.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 1ea9846cc6ce..2a4ab7caf553 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1337,6 +1337,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid, struct nlattr *tb[TCA_HTB_MAX + 1]; struct tc_htb_opt *hopt; u64 rate64, ceil64; + int warn = 0; /* extract all subattrs from opt attr */ if (!opt) @@ -1499,13 +1500,11 @@ static int htb_change_class(struct Qdisc *sch, u32 classid, cl->quantum = min_t(u64, quantum, INT_MAX); if (!hopt->quantum && cl->quantum < 1000) { - pr_warn("HTB: quantum of class %X is small. Consider r2q change.\n", - cl->common.classid); + warn = -1; cl->quantum = 1000; } if (!hopt->quantum && cl->quantum > 200000) { - pr_warn("HTB: quantum of class %X is big. Consider r2q change.\n", - cl->common.classid); + warn = 1; cl->quantum = 200000; } if (hopt->quantum) @@ -1519,6 +1518,10 @@ static int htb_change_class(struct Qdisc *sch, u32 classid, sch_tree_unlock(sch); + if (warn) + pr_warn("HTB: quantum of class %X is %s. Consider r2q change.\n", + cl->common.classid, (warn == -1 ? "small" : "big")); + qdisc_class_hash_grow(sch, &q->clhash); *arg = (unsigned long)cl; |