[PATCH v10 9/9] xen: rename free_staticmem_pages to unprepare_staticmem_pages

[Penny Zheng <Penny.Zheng@arm.com>]

The name of free_staticmem_pages is inappropriate, considering it is
the opposite of function prepare_staticmem_pages.

Rename free_staticmem_pages to unprepare_staticmem_pages.

Signed-off-by: Penny Zheng <penny.zheng@arm.com>
---
v10 changes:
- new commit
---
 xen/arch/arm/setup.c    |  3 ++-
 xen/common/page_alloc.c | 15 +++++++++------
 xen/include/xen/mm.h    |  4 ++--
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index 500307edc0..4662997c7e 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -639,7 +639,8 @@ static void __init init_staticmem_pages(void)
             if ( mfn_x(bank_end) <= mfn_x(bank_start) )
                 return;
 
-            free_staticmem_pages(mfn_to_page(bank_start), bank_pages, false);
+            unprepare_staticmem_pages(mfn_to_page(bank_start),
+                                      bank_pages, false);
         }
     }
 #endif
diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c
index 9c6d369d10..7306d69129 100644
--- a/xen/common/page_alloc.c
+++ b/xen/common/page_alloc.c
@@ -2693,9 +2693,12 @@ struct domain *get_pg_owner(domid_t domid)
 }
 
 #ifdef CONFIG_STATIC_MEMORY
-/* Equivalent of free_heap_pages to free nr_mfns pages of static memory. */
-void free_staticmem_pages(struct page_info *pg, unsigned long nr_mfns,
-                          bool need_scrub)
+/*
+ * It is the opposite of prepare_staticmem_pages, and it aims to unprepare
+ * nr_mfns pages of static memory.
+ */
+void unprepare_staticmem_pages(struct page_info *pg, unsigned long nr_mfns,
+                               bool need_scrub)
 {
     mfn_t mfn = page_to_mfn(pg);
     unsigned long i;
@@ -2740,7 +2743,7 @@ void free_domstatic_page(struct page_info *page)
 
     drop_dom_ref = !domain_adjust_tot_pages(d, -1);
 
-    free_staticmem_pages(page, 1, scrub_debug);
+    unprepare_staticmem_pages(page, 1, scrub_debug);
 
     /* Add page on the resv_page_list *after* it has been freed. */
     page_list_add_tail(page, &d->resv_page_list);
@@ -2848,7 +2851,7 @@ static int assign_domstatic_pages(struct domain *d, struct page_info *pg,
 
     if ( assign_pages(pg, nr_mfns, d, memflags) )
     {
-        free_staticmem_pages(pg, nr_mfns, memflags & MEMF_no_scrub);
+        unprepare_staticmem_pages(pg, nr_mfns, memflags & MEMF_no_scrub);
         return -EINVAL;
     }
 
@@ -2902,7 +2905,7 @@ mfn_t acquire_reserved_page(struct domain *d, unsigned int memflags)
     return page_to_mfn(page);
 
  fail_assign:
-    free_staticmem_pages(page, 1, memflags & MEMF_no_scrub);
+    unprepare_staticmem_pages(page, 1, memflags & MEMF_no_scrub);
  fail:
     spin_lock(&d->page_alloc_lock);
     page_list_add_tail(page, &d->resv_page_list);
diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h
index 5d29aea7ad..a925028ab3 100644
--- a/xen/include/xen/mm.h
+++ b/xen/include/xen/mm.h
@@ -86,8 +86,8 @@ bool scrub_free_pages(void);
 #define FREE_XENHEAP_PAGE(p) FREE_XENHEAP_PAGES(p, 0)
 
 /* These functions are for static memory */
-void free_staticmem_pages(struct page_info *pg, unsigned long nr_mfns,
-                          bool need_scrub);
+void unprepare_staticmem_pages(struct page_info *pg, unsigned long nr_mfns,
+                               bool need_scrub);
 void free_domstatic_page(struct page_info *page);
 int acquire_domstatic_pages(struct domain *d, mfn_t smfn, unsigned int nr_mfns,
                             unsigned int memflags);
-- 
2.25.1