[PATCH v7 05/11] libxl: introduce libxl__device_disk_add

[Stefano Stabellini <stefano.stabellini@eu.citrix.com>]

Introduce libxl__device_disk_add that takes an additional
xs_transaction_t paramter.
Implement libxl_device_disk_add using libxl__device_disk_add.


Changes in v7:

- implement libxl__device_disk_add in libxl.c.


Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 tools/libxl/libxl.c          |   16 ++++++++++++----
 tools/libxl/libxl_internal.h |    2 ++
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 37f36d7..b80b845 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -1367,14 +1367,15 @@ int libxl__device_from_disk(libxl__gc *gc, uint32_t domid,
     return 0;
 }
 
-int libxl_device_disk_add(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
+int libxl__device_disk_add(libxl__gc *gc, uint32_t domid,
+        xs_transaction_t t, libxl_device_disk *disk)
 {
-    GC_INIT(ctx);
     flexarray_t *front;
     flexarray_t *back;
     char *dev;
     libxl__device device;
     int major, minor, rc;
+    libxl_ctx *ctx = gc->owner;
 
     rc = libxl__device_disk_setdefault(gc, disk);
     if (rc) goto out;
@@ -1421,7 +1422,7 @@ int libxl_device_disk_add(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *dis
             dev = libxl__blktap_devpath(gc, disk->pdev_path, disk->format);
             if (!dev) {
                 LOG(ERROR, "failed to get blktap devpath for %p\n",
-                    disk->pdev_path);
+                        disk->pdev_path);
                 rc = ERROR_FAIL;
                 goto out_free;
             }
@@ -1472,7 +1473,7 @@ int libxl_device_disk_add(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *dis
     flexarray_append(front, "device-type");
     flexarray_append(front, disk->is_cdrom ? "cdrom" : "disk");
 
-    libxl__device_generic_add(gc, XBT_NULL, &device,
+    libxl__device_generic_add(gc, t, &device,
                              libxl__xs_kvs_of_flexarray(gc, back, back->count),
                              libxl__xs_kvs_of_flexarray(gc, front, front->count));
 
@@ -1482,6 +1483,13 @@ out_free:
     flexarray_free(back);
     flexarray_free(front);
 out:
+    return rc;
+}
+
+int libxl_device_disk_add(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
+{
+    GC_INIT(ctx);
+    int rc = libxl__device_disk_add(gc, domid, XBT_NULL, disk);
     GC_FREE;
     return rc;
 }
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index d7ed657..b06053d 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -1239,6 +1239,8 @@ _hidden void libxl__device_destroy_tapdisk(libxl__gc *gc, char *be_path);
 _hidden int libxl__device_from_disk(libxl__gc *gc, uint32_t domid,
                                    libxl_device_disk *disk,
                                    libxl__device *device);
+_hidden int libxl__device_disk_add(libxl__gc *gc, uint32_t domid,
+        xs_transaction_t t, libxl_device_disk *disk);
 
 /*
  * Make a disk available in this (the control) domain. Returns path to
-- 
1.7.2.5