diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/xen/balloon.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/xen/balloon.h')
| -rw-r--r-- | kernel/include/xen/balloon.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/kernel/include/xen/balloon.h b/kernel/include/xen/balloon.h new file mode 100644 index 000000000..a4c1c6a93 --- /dev/null +++ b/kernel/include/xen/balloon.h @@ -0,0 +1,43 @@ +/****************************************************************************** + * Xen balloon functionality + */ + +#define RETRY_UNLIMITED 0 + +struct balloon_stats { + /* We aim for 'current allocation' == 'target allocation'. */ + unsigned long current_pages; + unsigned long target_pages; + /* Number of pages in high- and low-memory balloons. */ + unsigned long balloon_low; + unsigned long balloon_high; + unsigned long schedule_delay; + unsigned long max_schedule_delay; + unsigned long retry_count; + unsigned long max_retry_count; +#ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG + unsigned long hotplug_pages; + unsigned long balloon_hotplug; +#endif +}; + +extern struct balloon_stats balloon_stats; + +void balloon_set_new_target(unsigned long target); + +int alloc_xenballooned_pages(int nr_pages, struct page **pages, + bool highmem); +void free_xenballooned_pages(int nr_pages, struct page **pages); + +struct page *get_balloon_scratch_page(void); +void put_balloon_scratch_page(void); + +struct device; +#ifdef CONFIG_XEN_SELFBALLOONING +extern int register_xen_selfballooning(struct device *dev); +#else +static inline int register_xen_selfballooning(struct device *dev) +{ + return -ENOSYS; +} +#endif |