[Qemu-devel] [PATCH V9 01/14] block: move bdrv_snapshot_find() to block/snapshot.c

[Wenchao Xia <xiawenc@linux.vnet.ibm.com>]

  This patch adds block/snapshot.c and then moves the function
there. It also fixes small code style errors reported by check script.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
---
 block/Makefile.objs      |    1 +
 block/snapshot.c         |   37 +++++++++++++++++++++++++++++++++++++
 include/block/snapshot.h |   26 ++++++++++++++++++++++++++
 savevm.c                 |   23 +----------------------
 4 files changed, 65 insertions(+), 22 deletions(-)
 create mode 100644 block/snapshot.c
 create mode 100644 include/block/snapshot.h

diff --git a/block/Makefile.objs b/block/Makefile.objs
index c067f38..60a4cd2 100644
--- a/block/Makefile.objs
+++ b/block/Makefile.objs
@@ -3,6 +3,7 @@ block-obj-y += qcow2.o qcow2-refcount.o qcow2-cluster.o qcow2-snapshot.o qcow2-c
 block-obj-y += qed.o qed-gencb.o qed-l2-cache.o qed-table.o qed-cluster.o
 block-obj-y += qed-check.o
 block-obj-y += parallels.o blkdebug.o blkverify.o
+block-obj-y += snapshot.o
 block-obj-$(CONFIG_WIN32) += raw-win32.o win32-aio.o
 block-obj-$(CONFIG_POSIX) += raw-posix.o
 block-obj-$(CONFIG_LINUX_AIO) += linux-aio.o
diff --git a/block/snapshot.c b/block/snapshot.c
new file mode 100644
index 0000000..8de73b4
--- /dev/null
+++ b/block/snapshot.c
@@ -0,0 +1,37 @@
+/*
+ * Snapshot related functions.
+ *
+ * Copyright IBM, Corp. 2013
+ *
+ * Authors:
+ *  Wenchao Xia   <xiawenc@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#include "block/snapshot.h"
+
+int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
+                       const char *name)
+{
+    QEMUSnapshotInfo *sn_tab, *sn;
+    int nb_sns, i, ret;
+
+    ret = -ENOENT;
+    nb_sns = bdrv_snapshot_list(bs, &sn_tab);
+    if (nb_sns < 0) {
+        return ret;
+    }
+    for (i = 0; i < nb_sns; i++) {
+        sn = &sn_tab[i];
+        if (!strcmp(sn->id_str, name) || !strcmp(sn->name, name)) {
+            *sn_info = *sn;
+            ret = 0;
+            break;
+        }
+    }
+    g_free(sn_tab);
+    return ret;
+}
diff --git a/include/block/snapshot.h b/include/block/snapshot.h
new file mode 100644
index 0000000..86891d1
--- /dev/null
+++ b/include/block/snapshot.h
@@ -0,0 +1,26 @@
+/*
+ * Snapshot related functions.
+ *
+ * Copyright IBM, Corp. 2013
+ *
+ * Authors:
+ *  Wenchao Xia   <xiawenc@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#ifndef SNAPSHOT_H
+#define SNAPSHOT_H
+
+#include "qemu-common.h"
+/*
+ * block.h is needed for QEMUSnapshotInfo, it can be removed when define is
+ * moved here.
+ */
+#include "block.h"
+
+int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
+                       const char *name);
+#endif
diff --git a/savevm.c b/savevm.c
index a8a53ef..95f19ca 100644
--- a/savevm.c
+++ b/savevm.c
@@ -39,6 +39,7 @@
 #include "qmp-commands.h"
 #include "trace.h"
 #include "qemu/bitops.h"
+#include "block/snapshot.h"
 
 #define SELF_ANNOUNCE_ROUNDS 5
 
@@ -2060,28 +2061,6 @@ out:
     return ret;
 }
 
-static int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
-                              const char *name)
-{
-    QEMUSnapshotInfo *sn_tab, *sn;
-    int nb_sns, i, ret;
-
-    ret = -ENOENT;
-    nb_sns = bdrv_snapshot_list(bs, &sn_tab);
-    if (nb_sns < 0)
-        return ret;
-    for(i = 0; i < nb_sns; i++) {
-        sn = &sn_tab[i];
-        if (!strcmp(sn->id_str, name) || !strcmp(sn->name, name)) {
-            *sn_info = *sn;
-            ret = 0;
-            break;
-        }
-    }
-    g_free(sn_tab);
-    return ret;
-}
-
 /*
  * Deletes snapshots of a given name in all opened images.
  */
-- 
1.7.1