Cregit: Linux 6.9: swap

Contributors: 8
Author	Tokens	Token Proportion	Commits	Commit Proportion
Kamezawa Hiroyuki	115	74.19%	5	35.71%
Johannes Weiner	9	5.81%	2	14.29%
Huang Ying	8	5.16%	1	7.14%
Daisuke Nishimura	8	5.16%	1	7.14%
Linus Torvalds (pre-git)	7	4.52%	2	14.29%
Tejun Heo	5	3.23%	1	7.14%
Bob Liu	2	1.29%	1	7.14%
Greg Kroah-Hartman	1	0.65%	1	7.14%
Total	155		14

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_SWAP_CGROUP_H
#define __LINUX_SWAP_CGROUP_H

#include <linux/swap.h>

#if defined(CONFIG_MEMCG) && defined(CONFIG_SWAP)

extern unsigned short swap_cgroup_cmpxchg(swp_entry_t ent,
					unsigned short old, unsigned short new);
extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id,
					 unsigned int nr_ents);
extern unsigned short lookup_swap_cgroup_id(swp_entry_t ent);
extern int swap_cgroup_swapon(int type, unsigned long max_pages);
extern void swap_cgroup_swapoff(int type);

#else

static inline
unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id,
				  unsigned int nr_ents)
{
	return 0;
}

static inline
unsigned short lookup_swap_cgroup_id(swp_entry_t ent)
{
	return 0;
}

static inline int
swap_cgroup_swapon(int type, unsigned long max_pages)
{
	return 0;
}

static inline void swap_cgroup_swapoff(int type)
{
	return;
}

#endif

#endif /* __LINUX_SWAP_CGROUP_H */

swap_cgroup.h