Merge tag 'netfs-folio-20211111' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-microblaze.git] / include / xen / balloon.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /******************************************************************************
3  * Xen balloon functionality
4  */
5 #ifndef _XEN_BALLOON_H
6 #define _XEN_BALLOON_H
7
8 #define RETRY_UNLIMITED 0
9
10 struct balloon_stats {
11         /* We aim for 'current allocation' == 'target allocation'. */
12         unsigned long current_pages;
13         unsigned long target_pages;
14         unsigned long target_unpopulated;
15         /* Number of pages in high- and low-memory balloons. */
16         unsigned long balloon_low;
17         unsigned long balloon_high;
18         unsigned long total_pages;
19         unsigned long schedule_delay;
20         unsigned long max_schedule_delay;
21         unsigned long retry_count;
22         unsigned long max_retry_count;
23 };
24
25 extern struct balloon_stats balloon_stats;
26
27 void balloon_set_new_target(unsigned long target);
28
29 #ifdef CONFIG_XEN_BALLOON
30 void xen_balloon_init(void);
31 #else
32 static inline void xen_balloon_init(void)
33 {
34 }
35 #endif
36
37 #endif  /* _XEN_BALLOON_H */