Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David Howells |
302 |
91.79% |
8 |
40.00% |
| Linus Torvalds (pre-git) |
12 |
3.65% |
8 |
40.00% |
| Joe Perches |
7 |
2.13% |
1 |
5.00% |
| Elena Reshetova |
5 |
1.52% |
1 |
5.00% |
| Arnaldo Carvalho de Melo |
2 |
0.61% |
1 |
5.00% |
| Thomas Gleixner |
1 |
0.30% |
1 |
5.00% |
| Total |
329 |
|
20 |
|
// 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 <linux/module.h>
#include <linux/net.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
#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 dropping of a ref on a socket buffer by the core.
*/
void rxrpc_eaten_skb(struct sk_buff *skb, enum rxrpc_skb_trace why)
{
int n = atomic_inc_return(&rxrpc_n_rx_skbs);
trace_rxrpc_skb(skb, 0, n, why);
}
/*
* 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);
}
}