[3/3] move balloon handling to balloon.c

diff --git a/Makefile.target b/Makefile.target
index dbffe63..9ca6636 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -161,7 +161,7 @@  endif #CONFIG_BSD_USER
 # System emulator target
 ifdef CONFIG_SOFTMMU
 
-obj-y = arch_init.o cpus.o monitor.o machine.o gdbstub.o
+obj-y = arch_init.o cpus.o monitor.o machine.o gdbstub.o balloon.o
 # virtio has to be here due to weird dependency between PCI and virtio-net.
 # need to fix this properly
 obj-y += virtio-blk.o virtio-balloon.o virtio-net.o virtio-serial-bus.o
diff --git a/balloon.c b/balloon.c
new file mode 100644
index 0000000..016178f
--- /dev/null
+++ b/balloon.c
@@ -0,0 +1,145 @@ 
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "sysemu.h"
+#include "monitor.h"
+#include "qjson.h"
+#include "qint.h"
+#include "kvm.h"
+#include "balloon.h"
+
+
+static QEMUBalloonEvent *qemu_balloon_event;
+void *qemu_balloon_event_opaque;
+
+void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
+{
+    qemu_balloon_event = func;
+    qemu_balloon_event_opaque = opaque;
+}
+
+int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
+{
+    if (qemu_balloon_event) {
+        qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+int qemu_balloon_status(MonitorCompletion cb, void *opaque)
+{
+    if (qemu_balloon_event) {
+        qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
+        return 1;
+    } else {
+        return 0;
+    }
+}
+ 
+static void print_balloon_stat(const char *key, QObject *obj, void *opaque)
+{
+    Monitor *mon = opaque;
+
+    if (strcmp(key, "actual"))
+        monitor_printf(mon, ",%s=%" PRId64, key,
+                       qint_get_int(qobject_to_qint(obj)));
+}
+
+void monitor_print_balloon(Monitor *mon, const QObject *data)
+{
+    QDict *qdict;
+
+    qdict = qobject_to_qdict(data);
+    if (!qdict_haskey(qdict, "actual"))
+        return;
+
+    monitor_printf(mon, "balloon: actual=%" PRId64,
+                   qdict_get_int(qdict, "actual") >> 20);
+    qdict_iter(qdict, print_balloon_stat, mon);
+    monitor_printf(mon, "\n");
+}
+
+/**
+ * do_info_balloon(): Balloon information
+ *
+ * Make an asynchronous request for balloon info.  When the request completes
+ * a QDict will be returned according to the following specification:
+ *
+ * - "actual": current balloon value in bytes
+ * The following fields may or may not be present:
+ * - "mem_swapped_in": Amount of memory swapped in (bytes)
+ * - "mem_swapped_out": Amount of memory swapped out (bytes)
+ * - "major_page_faults": Number of major faults
+ * - "minor_page_faults": Number of minor faults
+ * - "free_mem": Total amount of free and unused memory (bytes)
+ * - "total_mem": Total amount of available memory (bytes)
+ *
+ * Example:
+ *
+ * { "actual": 1073741824, "mem_swapped_in": 0, "mem_swapped_out": 0,
+ *   "major_page_faults": 142, "minor_page_faults": 239245,
+ *   "free_mem": 1014185984, "total_mem": 1044668416 }
+ */
+int do_info_balloon(Monitor *mon, MonitorCompletion cb, void *opaque)
+{
+    int ret;
+
+    if (kvm_enabled() && !kvm_has_sync_mmu()) {
+        qerror_report(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
+        return -1;
+    }
+
+    ret = qemu_balloon_status(cb, opaque);
+    if (!ret) {
+        qerror_report(QERR_DEVICE_NOT_ACTIVE, "balloon");
+        return -1;
+    }
+
+    return 0;
+}
+
+/**
+ * do_balloon(): Request VM to change its memory allocation
+ */
+int do_balloon(Monitor *mon, const QDict *params,
+	       MonitorCompletion cb, void *opaque)
+{
+    int ret;
+
+    if (kvm_enabled() && !kvm_has_sync_mmu()) {
+        qerror_report(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
+        return -1;
+    }
+
+    ret = qemu_balloon(qdict_get_int(params, "value"), cb, opaque);
+    if (ret == 0) {
+        qerror_report(QERR_DEVICE_NOT_ACTIVE, "balloon");
+        return -1;
+    }
+
+    cb(opaque, NULL);
+    return 0;
+}
diff --git a/balloon.h b/balloon.h
index 8c019eb..d478e28 100644
--- a/balloon.h
+++ b/balloon.h
@@ -14,6 +14,8 @@ 
 #ifndef _QEMU_BALLOON_H
 #define _QEMU_BALLOON_H
 
+#include "monitor.h"
+
 typedef void (QEMUBalloonEvent)(void *opaque, ram_addr_t target,
                                 MonitorCompletion cb, void *cb_data);
 
@@ -23,4 +25,9 @@  int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque);
 
 int qemu_balloon_status(MonitorCompletion cb, void *opaque);
 
+void monitor_print_balloon(Monitor *mon, const QObject *data);
+int do_info_balloon(Monitor *mon, MonitorCompletion cb, void *opaque);
+int do_balloon(Monitor *mon, const QDict *params,
+               MonitorCompletion cb, void *opaque);
+
 #endif
diff --git a/monitor.c b/monitor.c
index 822dc27..5659991 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2266,91 +2266,6 @@  static void do_info_status(Monitor *mon, QObject **ret_data)
                                     vm_running, singlestep);
 }
 
-static void print_balloon_stat(const char *key, QObject *obj, void *opaque)
-{
-    Monitor *mon = opaque;
-
-    if (strcmp(key, "actual"))
-        monitor_printf(mon, ",%s=%" PRId64, key,
-                       qint_get_int(qobject_to_qint(obj)));
-}
-
-static void monitor_print_balloon(Monitor *mon, const QObject *data)
-{
-    QDict *qdict;
-
-    qdict = qobject_to_qdict(data);
-    if (!qdict_haskey(qdict, "actual"))
-        return;
-
-    monitor_printf(mon, "balloon: actual=%" PRId64,
-                   qdict_get_int(qdict, "actual") >> 20);
-    qdict_iter(qdict, print_balloon_stat, mon);
-    monitor_printf(mon, "\n");
-}
-
-/**
- * do_info_balloon(): Balloon information
- *
- * Make an asynchronous request for balloon info.  When the request completes
- * a QDict will be returned according to the following specification:
- *
- * - "actual": current balloon value in bytes
- * The following fields may or may not be present:
- * - "mem_swapped_in": Amount of memory swapped in (bytes)
- * - "mem_swapped_out": Amount of memory swapped out (bytes)
- * - "major_page_faults": Number of major faults
- * - "minor_page_faults": Number of minor faults
- * - "free_mem": Total amount of free and unused memory (bytes)
- * - "total_mem": Total amount of available memory (bytes)
- *
- * Example:
- *
- * { "actual": 1073741824, "mem_swapped_in": 0, "mem_swapped_out": 0,
- *   "major_page_faults": 142, "minor_page_faults": 239245,
- *   "free_mem": 1014185984, "total_mem": 1044668416 }
- */
-static int do_info_balloon(Monitor *mon, MonitorCompletion cb, void *opaque)
-{
-    int ret;
-
-    if (kvm_enabled() && !kvm_has_sync_mmu()) {
-        qerror_report(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
-        return -1;
-    }
-
-    ret = qemu_balloon_status(cb, opaque);
-    if (!ret) {
-        qerror_report(QERR_DEVICE_NOT_ACTIVE, "balloon");
-        return -1;
-    }
-
-    return 0;
-}
-
-/**
- * do_balloon(): Request VM to change its memory allocation
- */
-static int do_balloon(Monitor *mon, const QDict *params,
-                       MonitorCompletion cb, void *opaque)
-{
-    int ret;
-
-    if (kvm_enabled() && !kvm_has_sync_mmu()) {
-        qerror_report(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
-        return -1;
-    }
-
-    ret = qemu_balloon(qdict_get_int(params, "value"), cb, opaque);
-    if (ret == 0) {
-        qerror_report(QERR_DEVICE_NOT_ACTIVE, "balloon");
-        return -1;
-    }
-
-    cb(opaque, NULL);
-    return 0;
-}
-
 static qemu_acl *find_acl(Monitor *mon, const char *name)
 {
     qemu_acl *acl = qemu_acl_find(name);
diff --git a/vl.c b/vl.c
index 8828beb..e7192fc 100644
--- a/vl.c
+++ b/vl.c
@@ -146,7 +146,6 @@  int main(int argc, char **argv)
 #include "audio/audio.h"
 #include "migration.h"
 #include "kvm.h"
-#include "balloon.h"
 #include "qemu-option.h"
 #include "qemu-config.h"
 #include "qemu-objects.h"
@@ -307,39 +306,6 @@  static void set_proc_name(const char *s)
 #endif    	
 }
  
-/***************/
-/* ballooning */
-
-static QEMUBalloonEvent *qemu_balloon_event;
-void *qemu_balloon_event_opaque;
-
-void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
-{
-    qemu_balloon_event = func;
-    qemu_balloon_event_opaque = opaque;
-}
-
-int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
-{
-    if (qemu_balloon_event) {
-        qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
-        return 1;
-    } else {
-        return 0;
-    }
-}
-
-int qemu_balloon_status(MonitorCompletion cb, void *opaque)
-{
-    if (qemu_balloon_event) {
-        qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
-        return 1;
-    } else {
-        return 0;
-    }
-}
-
-
 /***********************************************************/
 /* real time host monotonic timer */