[PATCH] mini-os: mm: don't have two large arrays of the same kind

[Juergen Gross <jgross@xxxxxxxx>]

In the CONFIG_PARAVIRT case there are two identical static arrays of
more than 8kB size with function scope. As the two functions never
nest, a single array of file scope can replace the two existing
instances.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 arch/x86/mm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm.c b/arch/x86/mm.c
index be1cf0cf..7ddf16e4 100644
--- a/arch/x86/mm.c
+++ b/arch/x86/mm.c
@@ -198,6 +198,10 @@ static void new_pt_frame(unsigned long *pt_pfn, unsigned 
long prev_l_mfn,
     *pt_pfn += 1;
 }
 
+#ifdef CONFIG_PARAVIRT
+static mmu_update_t mmu_updates[L1_PAGETABLE_ENTRIES + 1];
+#endif
+
 /*
  * Build the initial pagetable.
  */
@@ -209,7 +213,6 @@ static void build_pagetable(unsigned long *start_pfn, 
unsigned long *max_pfn)
     unsigned long pt_mfn = pfn_to_mfn(virt_to_pfn(pt_base));
     unsigned long offset;
 #ifdef CONFIG_PARAVIRT
-    static mmu_update_t mmu_updates[L1_PAGETABLE_ENTRIES + 1];
     int count = 0;
     int rc;
 #endif
@@ -323,7 +326,6 @@ static void set_readonly(void *text, void *etext)
     unsigned long offset;
     unsigned long page_size = PAGE_SIZE;
 #ifdef CONFIG_PARAVIRT
-    static mmu_update_t mmu_updates[L1_PAGETABLE_ENTRIES + 1];
     int count = 0;
     int rc;
 #endif
-- 
2.43.0