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migration: remove duplicate code 

version_id is checked twice in the ram_load.

Signed-off-by: ChenLiang <chenliang88@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
(cherry picked from commit 21a246a43b)

*prereq for db80fac backport
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
ChenLiang 2014-04-25 17:06:20 +08:00 committed by Michael Roth
parent 84321ba2b6
commit 3102b1a221
1 changed files with 31 additions and 33 deletions
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64
arch_init.c
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@ -862,7 +862,7 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
seq_iter++;
if (version_id < 4 || version_id > 4) {
if (version_id != 4) {
return -EINVAL;
}
@ -873,44 +873,42 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
addr &= TARGET_PAGE_MASK;
if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
if (version_id == 4) {
/* Synchronize RAM block list */
char id[256];
ram_addr_t length;
ram_addr_t total_ram_bytes = addr;
/* Synchronize RAM block list */
char id[256];
ram_addr_t length;
ram_addr_t total_ram_bytes = addr;
while (total_ram_bytes) {
RAMBlock *block;
uint8_t len;
while (total_ram_bytes) {
RAMBlock *block;
uint8_t len;
len = qemu_get_byte(f);
qemu_get_buffer(f, (uint8_t *)id, len);
id[len] = 0;
length = qemu_get_be64(f);
len = qemu_get_byte(f);
qemu_get_buffer(f, (uint8_t *)id, len);
id[len] = 0;
length = qemu_get_be64(f);
QTAILQ_FOREACH(block, &ram_list.blocks, next) {
if (!strncmp(id, block->idstr, sizeof(id))) {
if (block->length != length) {
fprintf(stderr,
"Length mismatch: %s: " RAM_ADDR_FMT
" in != " RAM_ADDR_FMT "\n", id, length,
block->length);
ret = -EINVAL;
goto done;
}
break;
QTAILQ_FOREACH(block, &ram_list.blocks, next) {
if (!strncmp(id, block->idstr, sizeof(id))) {
if (block->length != length) {
fprintf(stderr,
"Length mismatch: %s: " RAM_ADDR_FMT
" in != " RAM_ADDR_FMT "\n", id, length,
block->length);
ret = -EINVAL;
goto done;
}
break;
}
if (!block) {
fprintf(stderr, "Unknown ramblock \"%s\", cannot "
"accept migration\n", id);
ret = -EINVAL;
goto done;
}
total_ram_bytes -= length;
}
if (!block) {
fprintf(stderr, "Unknown ramblock \"%s\", cannot "
"accept migration\n", id);
ret = -EINVAL;
goto done;
}
total_ram_bytes -= length;
}
}