block: Improve bdrv_iterate (Jan Kiszka)

Make bdrv_iterate more useful by passing the BlockDriverState to the
iterator instead of the device name.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6703 c046a42c-6fe2-441c-8c8c-71466251a162

block.c

@@ -1011,12 +1011,12 @@ BlockDriverState *bdrv_find(const char *name)
     return NULL;
 }
 
-void bdrv_iterate(void (*it)(void *opaque, const char *name), void *opaque)
+void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), void *opaque)
 {
     BlockDriverState *bs;
 
     for (bs = bdrv_first; bs != NULL; bs = bs->next) {
-        it(opaque, bs->device_name);
+        it(opaque, bs);
     }
 }
 

block.h

@@ -141,7 +141,8 @@ void bdrv_set_change_cb(BlockDriverState *bs,
                         void (*change_cb)(void *opaque), void *opaque);
 void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
 BlockDriverState *bdrv_find(const char *name);
-void bdrv_iterate(void (*it)(void *opaque, const char *name), void *opaque);
+void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
+                  void *opaque);
 int bdrv_is_encrypted(BlockDriverState *bs);
 int bdrv_set_key(BlockDriverState *bs, const char *key);
 void bdrv_iterate_format(void (*it)(void *opaque, const char *name),

monitor.c

@@ -2679,8 +2679,9 @@ static void file_completion(const char *input)
     closedir(ffs);
 }
 
-static void block_completion_it(void *opaque, const char *name)
+static void block_completion_it(void *opaque, BlockDriverState *bs)
 {
+    const char *name = bdrv_get_device_name(bs);
     const char *input = opaque;
 
     if (input[0] == '\0' ||