migration/next for 20150326

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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20150326' into staging

migration/next for 20150326

# gpg: Signature made Thu Mar 26 14:31:55 2015 GMT using RSA key ID 5872D723
# gpg: Can't check signature: public key not found

* remotes/juanquintela/tags/migration/20150326:
  migration:  remove last_sent_block from save_page_header
  rdma: Fix cleanup in error paths
  Avoid crashing on multiple -incoming

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2015-03-26 14:47:53 +00:00
commit 99b7f47c54
3 changed files with 17 additions and 21 deletions

View file

@ -332,19 +332,14 @@ static size_t save_page_header(QEMUFile *f, RAMBlock *block, ram_addr_t offset)
{
size_t size;
if (block == last_sent_block) {
offset |= RAM_SAVE_FLAG_CONTINUE;
}
qemu_put_be64(f, offset);
size = 8;
if (block != last_sent_block) {
if (!(offset & RAM_SAVE_FLAG_CONTINUE)) {
qemu_put_byte(f, strlen(block->idstr));
qemu_put_buffer(f, (uint8_t *)block->idstr,
strlen(block->idstr));
size += 1 + strlen(block->idstr);
last_sent_block = block;
}
return size;
}
@ -644,6 +639,10 @@ static int ram_save_page(QEMUFile *f, RAMBlock* block, ram_addr_t offset,
XBZRLE_cache_lock();
current_addr = block->offset + offset;
if (block == last_sent_block) {
offset |= RAM_SAVE_FLAG_CONTINUE;
}
if (ret != RAM_SAVE_CONTROL_NOT_SUPP) {
if (ret != RAM_SAVE_CONTROL_DELAYED) {
if (bytes_xmit > 0) {
@ -739,6 +738,7 @@ static int ram_find_and_save_block(QEMUFile *f, bool last_stage,
/* if page is unmodified, continue to the next */
if (pages > 0) {
last_sent_block = block;
break;
}
}

View file

@ -2194,6 +2194,10 @@ static void qemu_rdma_cleanup(RDMAContext *rdma)
}
}
if (rdma->qp) {
rdma_destroy_qp(rdma->cm_id);
rdma->qp = NULL;
}
if (rdma->cq) {
ibv_destroy_cq(rdma->cq);
rdma->cq = NULL;
@ -2206,18 +2210,14 @@ static void qemu_rdma_cleanup(RDMAContext *rdma)
ibv_dealloc_pd(rdma->pd);
rdma->pd = NULL;
}
if (rdma->cm_id) {
rdma_destroy_id(rdma->cm_id);
rdma->cm_id = NULL;
}
if (rdma->listen_id) {
rdma_destroy_id(rdma->listen_id);
rdma->listen_id = NULL;
}
if (rdma->cm_id) {
if (rdma->qp) {
rdma_destroy_qp(rdma->cm_id);
rdma->qp = NULL;
}
rdma_destroy_id(rdma->cm_id);
rdma->cm_id = NULL;
}
if (rdma->channel) {
rdma_destroy_event_channel(rdma->channel);
rdma->channel = NULL;
@ -2309,8 +2309,6 @@ static int qemu_rdma_connect(RDMAContext *rdma, Error **errp)
if (ret) {
perror("rdma_connect");
ERROR(errp, "connecting to destination!");
rdma_destroy_id(rdma->cm_id);
rdma->cm_id = NULL;
goto err_rdma_source_connect;
}
@ -2319,8 +2317,6 @@ static int qemu_rdma_connect(RDMAContext *rdma, Error **errp)
perror("rdma_get_cm_event after rdma_connect");
ERROR(errp, "connecting to destination!");
rdma_ack_cm_event(cm_event);
rdma_destroy_id(rdma->cm_id);
rdma->cm_id = NULL;
goto err_rdma_source_connect;
}
@ -2328,8 +2324,6 @@ static int qemu_rdma_connect(RDMAContext *rdma, Error **errp)
perror("rdma_get_cm_event != EVENT_ESTABLISHED after rdma_connect");
ERROR(errp, "connecting to destination!");
rdma_ack_cm_event(cm_event);
rdma_destroy_id(rdma->cm_id);
rdma->cm_id = NULL;
goto err_rdma_source_connect;
}
rdma->connected = true;

4
vl.c
View file

@ -3618,8 +3618,10 @@ int main(int argc, char **argv, char **envp)
}
break;
case QEMU_OPTION_incoming:
if (!incoming) {
runstate_set(RUN_STATE_INMIGRATE);
}
incoming = optarg;
runstate_set(RUN_STATE_INMIGRATE);
break;
case QEMU_OPTION_nodefaults:
has_defaults = 0;