[Qemu-devel] [PATCH 1/4] set proper migration status on ->write error (v5)

[Luiz Capitulino]

From: Marcelo Tosatti <address@hidden>

If ->write fails, declare migration status as MIG_STATE_ERROR.

Also, in buffered_file.c, ->close the object in case of an
error.

Fixes "migrate -d "exec:dd of=file", where dd fails to open file.

Signed-off-by: Marcelo Tosatti <address@hidden>
Signed-off-by: Luiz Capitulino <address@hidden>
---
 buffered_file.c |    4 +++-
 migration.c     |    8 +++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/buffered_file.c b/buffered_file.c
index 54dc6c2..be147d6 100644
--- a/buffered_file.c
+++ b/buffered_file.c
@@ -222,8 +222,10 @@ static void buffered_rate_tick(void *opaque)
 {
     QEMUFileBuffered *s = opaque;
 
-    if (s->has_error)
+    if (s->has_error) {
+        buffered_close(s);
         return;
+    }
 
     qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 100);
 
diff --git a/migration.c b/migration.c
index 650eb78..dbb8fd6 100644
--- a/migration.c
+++ b/migration.c
@@ -314,8 +314,14 @@ ssize_t migrate_fd_put_buffer(void *opaque, const void 
*data, size_t size)
     if (ret == -1)
         ret = -(s->get_error(s));
 
-    if (ret == -EAGAIN)
+    if (ret == -EAGAIN) {
         qemu_set_fd_handler2(s->fd, NULL, NULL, migrate_fd_put_notify, s);
+    } else if (ret < 0) {
+        if (s->mon) {
+            monitor_resume(s->mon);
+        }
+        s->state = MIG_STATE_ERROR;
+    }
 
     return ret;
 }
-- 
1.7.2.1.97.g3235b