ram: Remove unused pages_skipped variable

For compatibility, we need to still send a value, but just specify it
and comment the fact.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>

3 files changed, 2 insertions, 14 deletions

diff --git a/include/migration/migration.h b/include/migration/migration.h
index f07700f3ef..bd0b60bbb4 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -277,8 +277,6 @@ void free_xbzrle_decoded_buf(void);
 void acct_update_position(QEMUFile *f, size_t size, bool zero);
 
 uint64_t dup_mig_pages_transferred(void);
-uint64_t skipped_mig_bytes_transferred(void);
-uint64_t skipped_mig_pages_transferred(void);
 uint64_t norm_mig_bytes_transferred(void);
 uint64_t norm_mig_pages_transferred(void);
 uint64_t xbzrle_mig_bytes_transferred(void);
diff --git a/migration/migration.c b/migration/migration.c
index 4bee05de9e..34c1a83ad8 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -651,7 +651,8 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s)
     info->ram->transferred = ram_bytes_transferred();
     info->ram->total = ram_bytes_total();
     info->ram->duplicate = dup_mig_pages_transferred();
-    info->ram->skipped = skipped_mig_pages_transferred();
+    /* legacy value.  It is not used anymore */
+    info->ram->skipped = 0;
     info->ram->normal = norm_mig_pages_transferred();
     info->ram->normal_bytes = norm_mig_bytes_transferred();
     info->ram->mbps = s->mbps;
diff --git a/migration/ram.c b/migration/ram.c
index 1398597202..78c7f3d6aa 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -175,7 +175,6 @@ static RAMState ram_state;
 
 /* accounting for migration statistics */
 typedef struct AccountingInfo {
-    uint64_t skipped_pages;
     uint64_t norm_pages;
     uint64_t iterations;
     uint64_t xbzrle_bytes;
@@ -197,16 +196,6 @@ uint64_t dup_mig_pages_transferred(void)
     return ram_state.zero_pages;
 }
 
-uint64_t skipped_mig_bytes_transferred(void)
-{
-    return acct_info.skipped_pages * TARGET_PAGE_SIZE;
-}
-
-uint64_t skipped_mig_pages_transferred(void)
-{
-    return acct_info.skipped_pages;
-}
-
 uint64_t norm_mig_bytes_transferred(void)
 {
     return acct_info.norm_pages * TARGET_PAGE_SIZE;