This operation copies one head into other.

Signed-off-by: Juan Quintela <quint...@redhat.com>
---
 qemu-queue.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/qemu-queue.h b/qemu-queue.h
index 8877efd..a59f948 100644
--- a/qemu-queue.h
+++ b/qemu-queue.h
@@ -92,6 +92,10 @@ struct {                                                     
           \
         (head)->lh_first = NULL;                                        \
 } while (/*CONSTCOND*/0)

+#define QLIST_COPY_HEAD(head, origin) do {                              \
+        (head)->lh_first = (origin)->lh_first;                          \
+} while (/*CONSTCOND*/0)
+
 #define QLIST_INSERT_AFTER(listelm, elm, field) do {                    \
         if (((elm)->field.le_next = (listelm)->field.le_next) != NULL)  \
                 (listelm)->field.le_next->field.le_prev =               \
-- 
1.6.5.2



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