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authorBoris Ostrovsky <boris.ostrovsky@oracle.com>2013-11-07 00:37:40 +0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-11-09 00:13:03 +0400
commitc275a57f5ec3056f732843b11659d892235faff7 (patch)
tree544c7a9caf0f55d5c1e3496df5bc129af4f63167
parent8deb3eb1461e4cb136c88d03ec5a6729ccf2f933 (diff)
downloadlinux-c275a57f5ec3056f732843b11659d892235faff7.tar.xz
xen/balloon: Set balloon's initial state to number of existing RAM pages
Currently balloon's initial value is set to max_pfn which includes non-RAM ranges such as MMIO hole. As result, initial memory target (specified by guest's configuration file) will appear smaller than what balloon driver perceives to be the current number of available pages. Thus it will balloon down "extra" pages, decreasing amount of available memory for no good reason. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
-rw-r--r--drivers/xen/balloon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index b232908a6192..1b6230419704 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -641,7 +641,7 @@ static int __init balloon_init(void)
balloon_stats.current_pages = xen_pv_domain()
? min(xen_start_info->nr_pages - xen_released_pages, max_pfn)
- : max_pfn;
+ : get_num_physpages();
balloon_stats.target_pages = balloon_stats.current_pages;
balloon_stats.balloon_low = 0;
balloon_stats.balloon_high = 0;