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authorJuan Quintela <quintela@redhat.com>2012-10-17 20:10:55 +0200
committerJuan Quintela <quintela@redhat.com>2012-12-20 23:09:39 +0100
commit5f718a15d0db3775bbcf2755a35dd6b019bcff8b (patch)
treecd0094a68509b8b31d331ddae2189e16705d3c16
parentb23a9a5cad356cdc8e25d4be72e53096a27ea722 (diff)
ram: Add last_sent_block
This is the last block from where we have sent data. Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
-rw-r--r--arch_init.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch_init.c b/arch_init.c
index 4351d304a8..caac526f2f 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -336,6 +336,8 @@ static int save_xbzrle_page(QEMUFile *f, uint8_t *current_data,
/* This is the last block that we have visited serching for dirty pages
*/
static RAMBlock *last_seen_block;
+/* This is the last block from where we have sent data */
+static RAMBlock *last_sent_block;
static ram_addr_t last_offset;
static unsigned long *migration_bitmap;
static uint64_t migration_dirty_pages;
@@ -433,7 +435,7 @@ static int ram_save_block(QEMUFile *f, bool last_stage)
mr = block->mr;
if (migration_bitmap_test_and_reset_dirty(mr, offset)) {
uint8_t *p;
- int cont = (block == last_seen_block) ?
+ int cont = (block == last_sent_block) ?
RAM_SAVE_FLAG_CONTINUE : 0;
p = memory_region_get_ram_ptr(mr) + offset;
@@ -462,6 +464,7 @@ static int ram_save_block(QEMUFile *f, bool last_stage)
/* if page is unmodified, continue to the next */
if (bytes_sent != 0) {
+ last_sent_block = block;
break;
}
}
@@ -535,6 +538,7 @@ static void ram_migration_cancel(void *opaque)
static void reset_ram_globals(void)
{
last_seen_block = NULL;
+ last_sent_block = NULL;
last_offset = 0;
last_version = ram_list.version;
}