posix clocks: Replace mutex with reader/writer semaphore
[pandora-kernel.git] / include / xen / balloon.h
1 /******************************************************************************
2  * Xen balloon functionality
3  */
4
5 #define RETRY_UNLIMITED 0
6
7 struct balloon_stats {
8         /* We aim for 'current allocation' == 'target allocation'. */
9         unsigned long current_pages;
10         unsigned long target_pages;
11         /* Number of pages in high- and low-memory balloons. */
12         unsigned long balloon_low;
13         unsigned long balloon_high;
14         unsigned long schedule_delay;
15         unsigned long max_schedule_delay;
16         unsigned long retry_count;
17         unsigned long max_retry_count;
18 };
19
20 extern struct balloon_stats balloon_stats;
21
22 void balloon_set_new_target(unsigned long target);
23
24 int alloc_xenballooned_pages(int nr_pages, struct page** pages);
25 void free_xenballooned_pages(int nr_pages, struct page** pages);