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add a version number to ram_list

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This will be used to detect if last_block might have become invalid
across different calls to ram_save_live.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Umesh Deshpande <udeshpan@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Orit Wasserman <owasserm@redhat.com>
This commit is contained in:
Umesh Deshpande 2011-08-18 11:41:17 -07:00 • committed by Juan Quintela
parent abb26d63e7
commit f798b07f51
3 changed files with 11 additions and 1 deletions
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4
exec.c
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@ -1056,6 +1056,8 @@ ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
}
ram_list.mru_block = NULL;
ram_list.version++;
ram_list.phys_dirty = g_realloc(ram_list.phys_dirty,
last_ram_offset() >> TARGET_PAGE_BITS);
memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS),
@ -1084,6 +1086,7 @@ void qemu_ram_free_from_ptr(ram_addr_t addr)
if (addr == block->offset) {
QTAILQ_REMOVE(&ram_list.blocks, block, next);
ram_list.mru_block = NULL;
ram_list.version++;
g_free(block);
return;
}
@ -1098,6 +1101,7 @@ void qemu_ram_free(ram_addr_t addr)
if (addr == block->offset) {
QTAILQ_REMOVE(&ram_list.blocks, block, next);
ram_list.mru_block = NULL;
ram_list.version++;
if (block->flags & RAM_PREALLOC_MASK) {
;
} else if (mem_path) {