diff options
| author | Eric Dumazet <edumazet@google.com> | 2025-09-28 08:49:33 +0000 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-09-30 15:45:53 +0200 |
| commit | 844c9db7f7f5fe1b0b53ed9f1c2bc7313b3021c8 (patch) | |
| tree | 9dd9c2e17b08ae6dd785ea2e7dbf7ac65c3f70f6 /include/linux/netdevice.h | |
| parent | 9c94ae6bb0b2895024b6e29fcc1cbec968b4776a (diff) | |
net: use llist for sd->defer_list
Get rid of sd->defer_lock and adopt llist operations.
We optimize skb_attempt_defer_free() for the common case,
where the packet is queued. Otherwise sd->defer_count
is increasing, until skb_defer_free_flush() clears it.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250928084934.3266948-3-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 27e3fa69253f..5c9aa16933d1 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3537,10 +3537,10 @@ struct softnet_data { struct numa_drop_counters drop_counters; /* Another possibly contended cache line */ - spinlock_t defer_lock ____cacheline_aligned_in_smp; - atomic_t defer_count; - int defer_ipi_scheduled; - struct sk_buff *defer_list; + struct llist_head defer_list ____cacheline_aligned_in_smp; + atomic_long_t defer_count; + + int defer_ipi_scheduled ____cacheline_aligned_in_smp; call_single_data_t defer_csd; }; |