From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- net/rxrpc/skbuff.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 net/rxrpc/skbuff.c (limited to 'net/rxrpc/skbuff.c') diff --git a/net/rxrpc/skbuff.c b/net/rxrpc/skbuff.c new file mode 100644 index 000000000..e2169d1a1 --- /dev/null +++ b/net/rxrpc/skbuff.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Socket buffer accounting + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include "ar-internal.h" + +#define select_skb_count(skb) (&rxrpc_n_rx_skbs) + +/* + * Note the allocation or reception of a socket buffer. + */ +void rxrpc_new_skb(struct sk_buff *skb, enum rxrpc_skb_trace why) +{ + int n = atomic_inc_return(select_skb_count(skb)); + trace_rxrpc_skb(skb, refcount_read(&skb->users), n, why); +} + +/* + * Note the re-emergence of a socket buffer from a queue or buffer. + */ +void rxrpc_see_skb(struct sk_buff *skb, enum rxrpc_skb_trace why) +{ + if (skb) { + int n = atomic_read(select_skb_count(skb)); + trace_rxrpc_skb(skb, refcount_read(&skb->users), n, why); + } +} + +/* + * Note the addition of a ref on a socket buffer. + */ +void rxrpc_get_skb(struct sk_buff *skb, enum rxrpc_skb_trace why) +{ + int n = atomic_inc_return(select_skb_count(skb)); + trace_rxrpc_skb(skb, refcount_read(&skb->users), n, why); + skb_get(skb); +} + +/* + * Note the destruction of a socket buffer. + */ +void rxrpc_free_skb(struct sk_buff *skb, enum rxrpc_skb_trace why) +{ + if (skb) { + int n = atomic_dec_return(select_skb_count(skb)); + trace_rxrpc_skb(skb, refcount_read(&skb->users), n, why); + consume_skb(skb); + } +} + +/* + * Clear a queue of socket buffers. + */ +void rxrpc_purge_queue(struct sk_buff_head *list) +{ + struct sk_buff *skb; + + while ((skb = skb_dequeue((list))) != NULL) { + int n = atomic_dec_return(select_skb_count(skb)); + trace_rxrpc_skb(skb, refcount_read(&skb->users), n, + rxrpc_skb_put_purge); + consume_skb(skb); + } +} -- cgit v1.3.1