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-rw-r--r--arch/x86/xen/setup.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 46d6d21dbdbe..c983717c018c 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -39,6 +39,9 @@ extern void xen_syscall32_target(void);
/* Amount of extra memory space we add to the e820 ranges */
phys_addr_t xen_extra_mem_start, xen_extra_mem_size;
+/* Number of pages released from the initial allocation. */
+unsigned long xen_released_pages;
+
/*
* The maximum amount of extra memory compared to the base size. The
* main scaling factor is the size of struct page. At extreme ratios
@@ -313,7 +316,9 @@ char * __init xen_memory_setup(void)
extra_pages = 0;
}
- extra_pages += xen_return_unused_memory(xen_start_info->nr_pages, &e820);
+ xen_released_pages = xen_return_unused_memory(xen_start_info->nr_pages,
+ &e820);
+ extra_pages += xen_released_pages;
/*
* Clamp the amount of extra memory to a EXTRA_MEM_RATIO