Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_ZSWAP_H
3#define _LINUX_ZSWAP_H
4
5#include <linux/types.h>
6#include <linux/mm_types.h>
7
8extern u64 zswap_pool_total_size;
9extern atomic_t zswap_stored_pages;
10
11#ifdef CONFIG_ZSWAP
12
13bool zswap_store(struct folio *folio);
14bool zswap_load(struct folio *folio);
15void zswap_invalidate(int type, pgoff_t offset);
16void zswap_swapon(int type);
17void zswap_swapoff(int type);
18
19#else
20
21static inline bool zswap_store(struct folio *folio)
22{
23 return false;
24}
25
26static inline bool zswap_load(struct folio *folio)
27{
28 return false;
29}
30
31static inline void zswap_invalidate(int type, pgoff_t offset) {}
32static inline void zswap_swapon(int type) {}
33static inline void zswap_swapoff(int type) {}
34
35#endif
36
37#endif /* _LINUX_ZSWAP_H */