[Xen-devel] [PATCH 11/11] mini-os/xenbus: Provide xenbus_free

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
 include/mini-os/xenbus.h |    5 +++++
 xen/xenbus/xenbus.c      |    2 ++
 2 files changed, 7 insertions(+)

diff --git a/include/mini-os/xenbus.h b/include/mini-os/xenbus.h
index 1900e55..0e45d47 100644
--- a/include/mini-os/xenbus.h
+++ b/include/mini-os/xenbus.h
@@ -199,6 +199,11 @@ void xenbus_watch_release(struct xenbus_watch *watch); /* 
idempotent */
 void xenbus_xb_write(int type, int req_id, xenbus_transaction_t trans_id,
                     const struct write_req *req, int nr_reqs);
 
+void xenbus_free(void*);
+/* If the caller is in a scope which uses a different malloc arena,
+ * it must use this rather than free() when freeing data received
+ * from xenbus. */
+
 #ifdef CONFIG_XENBUS
 /* Reset the XenBus system. */
 void fini_xenbus(void);
diff --git a/xen/xenbus/xenbus.c b/xen/xenbus/xenbus.c
index e5d7f36..77b9603 100644
--- a/xen/xenbus/xenbus.c
+++ b/xen/xenbus/xenbus.c
@@ -539,6 +539,8 @@ xenbus_msg_reply(int type,
     return rep;
 }
 
+void xenbus_free(void *p) { free(p); }
+
 static char *errmsg(struct xsd_sockmsg *rep)
 {
     char *res;
-- 
1.7.10.4


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