diff options
| author | Eric Dumazet <edumazet@google.com> | 2026-05-13 08:08:51 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-05-14 17:05:20 -0700 |
| commit | 72a1795999df1a5cb9296343202f8679151a5ea2 (patch) | |
| tree | e8b13cf8e096eaeddd80b6e9bbffce76ae94857e /include | |
| parent | f65d40643e425d2346d1fd7e1bbaa2efeeb8b70f (diff) | |
net/sched: qdisc_qstats_qlen_backlog() runs locklessly
qdisc_qstats_qlen_backlog() can be called without qdisc spinlock being held.
Use qdisc_qlen_lockless() instead of qdisc_qlen().
Add a const qualifier to its first parameter (struct Qdisc *sch).
Fixes: edb09eb17ed8 ("net: sched: do not acquire qdisc spinlock in qdisc/class stats dump")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@toke.dk>
Link: https://patch.msgid.link/20260513080853.1383975-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/sch_generic.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 9e6ed92729d2..d0ca932b1871 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -1070,13 +1070,13 @@ static inline int qdisc_qstats_copy(struct gnet_dump *d, const struct Qdisc *sch return gnet_stats_copy_queue(d, sch->cpu_qstats, &sch->qstats, qlen); } -static inline void qdisc_qstats_qlen_backlog(struct Qdisc *sch, __u32 *qlen, - __u32 *backlog) +static inline void qdisc_qstats_qlen_backlog(const struct Qdisc *sch, + u32 *qlen, u32 *backlog) { struct gnet_stats_queue qstats = { 0 }; gnet_stats_add_queue(&qstats, sch->cpu_qstats, &sch->qstats); - *qlen = qstats.qlen + qdisc_qlen(sch); + *qlen = qstats.qlen + qdisc_qlen_lockless(sch); *backlog = qstats.backlog; } |