linux/net/netfilter/ipvs/ip_vs_sched.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * IPVS         An implementation of the IP virtual server support for the
 *              LINUX operating system.  IPVS is now implemented as a module
 *              over the Netfilter framework. IPVS can be used to build a
 *              high-performance and highly available server based on a
 *              cluster of servers.
 *
 * Authors:     Wensong Zhang <[email protected]>
 *              Peter Kese <[email protected]>
 *
 * Changes:
 */

#define KMSG_COMPONENT …
#define pr_fmt(fmt) …

#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <asm/string.h>
#include <linux/kmod.h>
#include <linux/sysctl.h>

#include <net/ip_vs.h>

EXPORT_SYMBOL(…);
/*
 *  IPVS scheduler list
 */
static LIST_HEAD(ip_vs_schedulers);

/* semaphore for schedulers */
static DEFINE_MUTEX(ip_vs_sched_mutex);


/*
 *  Bind a service with a scheduler
 */
int ip_vs_bind_scheduler(struct ip_vs_service *svc,
			 struct ip_vs_scheduler *scheduler)
{ … }


/*
 *  Unbind a service with its scheduler
 */
void ip_vs_unbind_scheduler(struct ip_vs_service *svc,
			    struct ip_vs_scheduler *sched)
{ … }


/*
 *  Get scheduler in the scheduler list by name
 */
static struct ip_vs_scheduler *ip_vs_sched_getbyname(const char *sched_name)
{ … }


/*
 *  Lookup scheduler and try to load it if it doesn't exist
 */
struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name)
{ … }

void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler)
{ … }

/*
 * Common error output helper for schedulers
 */

void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg)
{ … }

/*
 *  Register a scheduler in the scheduler list
 */
int register_ip_vs_scheduler(struct ip_vs_scheduler *scheduler)
{ … }


/*
 *  Unregister a scheduler from the scheduler list
 */
int unregister_ip_vs_scheduler(struct ip_vs_scheduler *scheduler)
{ … }