/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Definitions for the "ping" module.
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#ifndef _PING_H
#define _PING_H

#include <net/icmp.h>
#include <net/netns/hash.h>

/* PING_HTABLE_SIZE must be power of 2 */
#define PING_HTABLE_SIZE 	64
#define PING_HTABLE_MASK 	(PING_HTABLE_SIZE-1)

#define ping_portaddr_for_each_entry(__sk, node, list) \
	hlist_nulls_for_each_entry(__sk, node, list, sk_nulls_node)

/*
 * gid_t is either uint or ushort.  We want to pass it to
 * proc_dointvec_minmax(), so it must not be larger than MAX_INT
 */
#define GID_T_MAX (((gid_t)~0U) >> 1)

/* Compatibility glue so we can support IPv6 when it's compiled as a module */
struct pingv6_ops {
	int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len,
			       int *addr_len);
	void (*ip6_datagram_recv_common_ctl)(struct sock *sk,
					     struct msghdr *msg,
					     struct sk_buff *skb);
	void (*ip6_datagram_recv_specific_ctl)(struct sock *sk,
					       struct msghdr *msg,
					       struct sk_buff *skb);
	int (*icmpv6_err_convert)(u8 type, u8 code, int *err);
	void (*ipv6_icmp_error)(struct sock *sk, struct sk_buff *skb, int err,
				__be16 port, u32 info, u8 *payload);
	int (*ipv6_chk_addr)(struct net *net, const struct in6_addr *addr,
			     const struct net_device *dev, int strict);
};

struct ping_iter_state {
	struct seq_net_private  p;
	int			bucket;
	sa_family_t		family;
};

extern struct proto ping_prot;
#if IS_ENABLED(CONFIG_IPV6)
extern struct pingv6_ops pingv6_ops;
#endif

struct pingfakehdr {
	struct icmphdr icmph;
	struct msghdr *msg;
	sa_family_t family;
	__wsum wcheck;
};

int  ping_get_port(struct sock *sk, unsigned short ident);
int ping_hash(struct sock *sk);
void ping_unhash(struct sock *sk);

int  ping_init_sock(struct sock *sk);
void ping_close(struct sock *sk, long timeout);
int  ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len);
void ping_err(struct sk_buff *skb, int offset, u32 info);
int  ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,
		  struct sk_buff *);

int  ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
		  int flags, int *addr_len);
int  ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
			 void *user_icmph, size_t icmph_len);
int  ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
bool ping_rcv(struct sk_buff *skb);

#ifdef CONFIG_PROC_FS
struct ping_seq_afinfo {
	char				*name;
	sa_family_t			family;
	const struct file_operations	*seq_fops;
	const struct seq_operations	seq_ops;
};

extern const struct file_operations ping_seq_fops;

void *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family);
void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos);
void ping_seq_stop(struct seq_file *seq, void *v);
int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo);
void ping_proc_unregister(struct net *net, struct ping_seq_afinfo *afinfo);

int __init ping_proc_init(void);
void ping_proc_exit(void);
#endif

void __init ping_init(void);
int  __init pingv6_init(void);
void pingv6_exit(void);

#endif /* _PING_H */
>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;</td><td class='right'>2017-01-30 19:27:10 -0500</td></tr>
<tr><th>committer</th><td>Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;</td><td class='right'>2017-01-31 09:13:49 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/aoa?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>79c6f448c8b79c321e4a1f31f98194e4f6b6cae7</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/aoa?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>370efda701f03cccf21e02bb1fdd3b852547d75c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/aoa?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>sound/aoa</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/aoa?id=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>0c744ea4f77d72b3dcebb7a8f2684633ec79be88</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/aoa?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7&amp;id2=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>diff</a>)</td></tr></table>
<div class='commit-subject'>tracing: Fix hwlat kthread migration</div><div class='commit-msg'>The hwlat tracer creates a kernel thread at start of the tracer. It is
pinned to a single CPU and will move to the next CPU after each period of
running. If the user modifies the migration thread's affinity, it will not
change after that happens.

The original code created the thread at the first instance it was called,
but later was changed to destroy the thread after the tracer was finished,
and would not be created until the next instance of the tracer was
established. The code that initialized the affinity was only called on the
initial instantiation of the tracer. After that, it was not initialized, and
the previous affinity did not match the current newly created one, making
it appear that the user modified the thread's affinity when it did not, and
the thread failed to migrate again.

Cc: stable@vger.kernel.org
Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>Diffstat</a> (limited to 'sound/aoa')</div><table summary='diffstat' class='diffstat'>