lguest: rename switcher_page to switcher_pages.

There is a single page with the Switcher in it, but it's followed by 2
pages per Host CPU.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

3 files changed, 19 insertions, 19 deletions

diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index 099252301132..211d8267992b 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -22,7 +22,7 @@
 
 unsigned long switcher_addr;
 static struct vm_struct *switcher_vma;
-static struct page **switcher_page;
+static struct page **switcher_pages;
 
 /* This One Big lock protects all inter-guest data structures. */
 DEFINE_MUTEX(lguest_lock);
@@ -56,9 +56,9 @@ static __init int map_switcher(void)
          * We allocate an array of struct page pointers.  map_vm_area() wants
          * this, rather than just an array of pages.
          */
-        switcher_page = kmalloc(sizeof(switcher_page[0])*TOTAL_SWITCHER_PAGES,
-                                GFP_KERNEL);
-        if (!switcher_page) {
+        switcher_pages = kmalloc(sizeof(switcher_pages[0])*TOTAL_SWITCHER_PAGES,
+                                 GFP_KERNEL);
+        if (!switcher_pages) {
                 err = -ENOMEM;
                 goto out;
         }
@@ -68,8 +68,8 @@ static __init int map_switcher(void)
          * so we make sure they're zeroed.
          */
         for (i = 0; i < TOTAL_SWITCHER_PAGES; i++) {
-                switcher_page[i] = alloc_page(GFP_KERNEL|__GFP_ZERO);
-                if (!switcher_page[i]) {
+                switcher_pages[i] = alloc_page(GFP_KERNEL|__GFP_ZERO);
+                if (!switcher_pages[i]) {
                         err = -ENOMEM;
                         goto free_some_pages;
                 }
@@ -110,7 +110,7 @@ static __init int map_switcher(void)
          * array of struct pages.  It increments that pointer, but we don't
          * care.
          */
-        pagep = switcher_page;
+        pagep = switcher_pages;
         err = map_vm_area(switcher_vma, PAGE_KERNEL_EXEC, &pagep);
         if (err) {
                 printk("lguest: map_vm_area failed: %i\n", err);
@@ -135,8 +135,8 @@ free_pages:
         i = TOTAL_SWITCHER_PAGES;
 free_some_pages:
         for (--i; i >= 0; i--)
-                __free_pages(switcher_page[i], 0);
-        kfree(switcher_page);
+                __free_pages(switcher_pages[i], 0);
+        kfree(switcher_pages);
 out:
         return err;
 }
@@ -151,8 +151,8 @@ static void unmap_switcher(void)
         vunmap(switcher_vma->addr);
         /* Now we just need to free the pages we copied the switcher into */
         for (i = 0; i < TOTAL_SWITCHER_PAGES; i++)
-                __free_pages(switcher_page[i], 0);
-        kfree(switcher_page);
+                __free_pages(switcher_pages[i], 0);
+        kfree(switcher_pages);
 }
 
 /*H:032
@@ -326,7 +326,7 @@ static int __init init(void)
                 goto out;
 
         /* Now we set up the pagetable implementation for the Guests. */
-        err = init_pagetables(switcher_page, SHARED_SWITCHER_PAGES);
+        err = init_pagetables(switcher_pages, SHARED_SWITCHER_PAGES);
         if (err)
                 goto unmap;
 
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index 295df06e6590..8bf68c54ff7f 100644
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -15,7 +15,7 @@
 #include <asm/lguest.h>
 
 void free_pagetables(void);
-int init_pagetables(struct page **switcher_page, unsigned int pages);
+int init_pagetables(struct page **switcher_pages, unsigned int pages);
 
 struct pgdir {
         unsigned long gpgdir;
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 27cbb186a911..21685580eb9f 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -1084,7 +1084,7 @@ static void free_switcher_pte_pages(void)
  * Currently the Switcher is less than a page long, so "pages" is always 1.
  */
 static __init void populate_switcher_pte_page(unsigned int cpu,
-                                              struct page *switcher_page[],
+                                              struct page *switcher_pages[],
                                               unsigned int pages)
 {
         unsigned int i;
@@ -1092,7 +1092,7 @@ static __init void populate_switcher_pte_page(unsigned int cpu,
 
         /* The first entries are easy: they map the Switcher code. */
         for (i = 0; i < pages; i++) {
-                set_pte(&pte[i], mk_pte(switcher_page[i],
+                set_pte(&pte[i], mk_pte(switcher_pages[i],
                                 __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED)));
         }
 
@@ -1100,14 +1100,14 @@ static __init void populate_switcher_pte_page(unsigned int cpu,
         i = pages + cpu*2;
 
         /* First page (Guest registers) is writable from the Guest */
-        set_pte(&pte[i], pfn_pte(page_to_pfn(switcher_page[i]),
+        set_pte(&pte[i], pfn_pte(page_to_pfn(switcher_pages[i]),
                          __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED|_PAGE_RW)));
 
         /*
          * The second page contains the "struct lguest_ro_state", and is
          * read-only.
          */
-        set_pte(&pte[i+1], pfn_pte(page_to_pfn(switcher_page[i+1]),
+        set_pte(&pte[i+1], pfn_pte(page_to_pfn(switcher_pages[i+1]),
                            __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED)));
 }
 
@@ -1128,7 +1128,7 @@ static __init void populate_switcher_pte_page(unsigned int cpu,
  * At boot or module load time, init_pagetables() allocates and populates
  * the Switcher PTE page for each CPU.
  */
-__init int init_pagetables(struct page **switcher_page, unsigned int pages)
+__init int init_pagetables(struct page **switcher_pages, unsigned int pages)
 {
         unsigned int i;
 
@@ -1138,7 +1138,7 @@ __init int init_pagetables(struct page **switcher_page, unsigned int pages)
                         free_switcher_pte_pages();
                         return -ENOMEM;
                 }
-                populate_switcher_pte_page(i, switcher_page, pages);
+                populate_switcher_pte_page(i, switcher_pages, pages);
         }
         return 0;
 }