migration: Rename duplicate to zero_pages

Rest of counters that refer to pages has a _pages suffix.
And historically, this showed the number of pages composed of the same
character, here comes the name "duplicated".  But since years ago, it
refers to the number of zero_pages.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/migration/ram.c b/migration/ram.c
index fe69ecaef4..19d345a030 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -1119,7 +1119,7 @@ uint64_t ram_pagesize_summary(void)
 uint64_t ram_get_total_transferred_pages(void)
 {
     return stat64_get(&ram_counters.normal) +
-        stat64_get(&ram_counters.duplicate) +
+        stat64_get(&ram_counters.zero_pages) +
         compression_counters.pages + xbzrle_counters.pages;
 }
 
@@ -1320,7 +1320,7 @@ static int save_zero_page(PageSearchStatus *pss, QEMUFile *f, RAMBlock *block,
     int len = save_zero_page_to_file(pss, f, block, offset);
 
     if (len) {
-        stat64_add(&ram_counters.duplicate, 1);
+        stat64_add(&ram_counters.zero_pages, 1);
         ram_transferred_add(len);
         return 1;
     }
@@ -1359,7 +1359,7 @@ static bool control_save_page(PageSearchStatus *pss, RAMBlock *block,
     if (bytes_xmit > 0) {
         stat64_add(&ram_counters.normal, 1);
     } else if (bytes_xmit == 0) {
-        stat64_add(&ram_counters.duplicate, 1);
+        stat64_add(&ram_counters.zero_pages, 1);
     }
 
     return true;
@@ -1486,7 +1486,7 @@ update_compress_thread_counts(const CompressParam *param, int bytes_xmit)
     ram_transferred_add(bytes_xmit);
 
     if (param->zero_page) {
-        stat64_add(&ram_counters.duplicate, 1);
+        stat64_add(&ram_counters.zero_pages, 1);
         return;
     }
 
@@ -2621,7 +2621,7 @@ void acct_update_position(QEMUFile *f, size_t size, bool zero)
     uint64_t pages = size / TARGET_PAGE_SIZE;
 
     if (zero) {
-        stat64_add(&ram_counters.duplicate, pages);
+        stat64_add(&ram_counters.zero_pages, pages);
     } else {
         stat64_add(&ram_counters.normal, pages);
         ram_transferred_add(size);