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46 lines
971 B
46 lines
971 B
3 years ago
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LINUX_SWAP_CGROUP_H
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#define __LINUX_SWAP_CGROUP_H
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#include <linux/swap.h>
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#ifdef CONFIG_MEMCG_SWAP
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extern unsigned short swap_cgroup_cmpxchg(swp_entry_t ent,
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unsigned short old, unsigned short new);
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extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id,
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unsigned int nr_ents);
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extern unsigned short lookup_swap_cgroup_id(swp_entry_t ent);
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extern int swap_cgroup_swapon(int type, unsigned long max_pages);
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extern void swap_cgroup_swapoff(int type);
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#else
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static inline
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unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id,
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unsigned int nr_ents)
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{
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return 0;
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}
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static inline
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unsigned short lookup_swap_cgroup_id(swp_entry_t ent)
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{
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return 0;
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}
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static inline int
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swap_cgroup_swapon(int type, unsigned long max_pages)
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{
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return 0;
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}
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static inline void swap_cgroup_swapoff(int type)
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{
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return;
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}
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#endif /* CONFIG_MEMCG_SWAP */
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#endif /* __LINUX_SWAP_CGROUP_H */
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