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authorUmesh Deshpande <udeshpan@redhat.com>2011-08-18 11:41:17 -0700
committerJuan Quintela <quintela@redhat.com>2012-12-20 23:08:47 +0100
commitf798b07f517143df3a1e38bccc3f72ade2f080dc (patch)
tree0ea1d2ebed54e652c12c302711a86f2db72a7d30 /exec.c
parentabb26d63e7e4492d306c13b7e0e799d4c11a067c (diff)
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add a version number to ram_list
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>
Diffstat (limited to 'exec.c')
-rw-r--r--exec.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/exec.c b/exec.c
index 1ee4fa6..8478bef 100644
--- a/exec.c
+++ b/exec.c
@@ -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) {