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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>
This commit is contained in:
Juan Quintela 2012-10-17 20:10:55 +02:00
parent b23a9a5cad
commit 5f718a15d0
1 changed files with 5 additions and 1 deletions
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6
arch_init.c
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@ -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;
}