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authorJuergen Gross <jgross@suse.com>2021-11-02 12:22:34 +0300
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>2021-11-04 20:59:44 +0300
commit121f2faca2c0a1b3af5581213c04817b3f3ceeb9 (patch)
treed90afd97070b5861631846f5f40708d2eb5c31b7 /drivers/xen/balloon.c
parent40fdea0284bb20814399da0484a658a96c735d90 (diff)
downloadlinux-121f2faca2c0a1b3af5581213c04817b3f3ceeb9.tar.xz
xen/balloon: rename alloc/free_xenballooned_pages
alloc_xenballooned_pages() and free_xenballooned_pages() are used as direct replacements of xen_alloc_unpopulated_pages() and xen_free_unpopulated_pages() in case CONFIG_XEN_UNPOPULATED_ALLOC isn't defined. Guard both functions with !CONFIG_XEN_UNPOPULATED_ALLOC and rename them to the xen_*() variants they are replacing. This allows to remove some ifdeffery from the xen.h header file. Adapt the prototype of the functions to match. Signed-off-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20211102092234.17852-1-jgross@suse.com Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'drivers/xen/balloon.c')
-rw-r--r--drivers/xen/balloon.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 8db96b5e7253..ad9ba1e97450 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -580,7 +580,8 @@ void balloon_set_new_target(unsigned long target)
}
EXPORT_SYMBOL_GPL(balloon_set_new_target);
-static int add_ballooned_pages(int nr_pages)
+#ifndef CONFIG_XEN_UNPOPULATED_ALLOC
+static int add_ballooned_pages(unsigned int nr_pages)
{
enum bp_state st;
@@ -608,14 +609,14 @@ static int add_ballooned_pages(int nr_pages)
}
/**
- * alloc_xenballooned_pages - get pages that have been ballooned out
+ * xen_alloc_unpopulated_pages - get pages that have been ballooned out
* @nr_pages: Number of pages to get
* @pages: pages returned
* @return 0 on success, error otherwise
*/
-int alloc_xenballooned_pages(int nr_pages, struct page **pages)
+int xen_alloc_unpopulated_pages(unsigned int nr_pages, struct page **pages)
{
- int pgno = 0;
+ unsigned int pgno = 0;
struct page *page;
int ret;
@@ -650,7 +651,7 @@ int alloc_xenballooned_pages(int nr_pages, struct page **pages)
return 0;
out_undo:
mutex_unlock(&balloon_mutex);
- free_xenballooned_pages(pgno, pages);
+ xen_free_unpopulated_pages(pgno, pages);
/*
* NB: free_xenballooned_pages will only subtract pgno pages, but since
* target_unpopulated is incremented with nr_pages at the start we need
@@ -659,16 +660,16 @@ int alloc_xenballooned_pages(int nr_pages, struct page **pages)
balloon_stats.target_unpopulated -= nr_pages - pgno;
return ret;
}
-EXPORT_SYMBOL(alloc_xenballooned_pages);
+EXPORT_SYMBOL(xen_alloc_unpopulated_pages);
/**
- * free_xenballooned_pages - return pages retrieved with get_ballooned_pages
+ * xen_free_unpopulated_pages - return pages retrieved with get_ballooned_pages
* @nr_pages: Number of pages
* @pages: pages to return
*/
-void free_xenballooned_pages(int nr_pages, struct page **pages)
+void xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages)
{
- int i;
+ unsigned int i;
mutex_lock(&balloon_mutex);
@@ -685,9 +686,9 @@ void free_xenballooned_pages(int nr_pages, struct page **pages)
mutex_unlock(&balloon_mutex);
}
-EXPORT_SYMBOL(free_xenballooned_pages);
+EXPORT_SYMBOL(xen_free_unpopulated_pages);
-#if defined(CONFIG_XEN_PV) && !defined(CONFIG_XEN_UNPOPULATED_ALLOC)
+#if defined(CONFIG_XEN_PV)
static void __init balloon_add_region(unsigned long start_pfn,
unsigned long pages)
{
@@ -710,6 +711,7 @@ static void __init balloon_add_region(unsigned long start_pfn,
balloon_stats.total_pages += extra_pfn_end - start_pfn;
}
#endif
+#endif
static int __init balloon_init(void)
{