From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 6 Jun 2012 06:10:41 +0000 (+0200)
Subject: blkdebug: pass getlength to underlying file
X-Git-Tag: v1.2.0-rc0~189^2~12
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e130225587cb0d48b2c0b7c04b6bf9c95fe75ac9;p=thirdparty%2Fqemu.git

blkdebug: pass getlength to underlying file

This is required when using blkdebug with raw format.  Unlike qcow2/QED,
raw asks blkdebug for the length of the file, it doesn't get it from
a header.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/block/blkdebug.c b/block/blkdebug.c
index 1f79ef2a007..b084a232cfa 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -429,6 +429,11 @@ static void blkdebug_debug_event(BlockDriverState *bs, BlkDebugEvent event)
     }
 }
 
+static int64_t blkdebug_getlength(BlockDriverState *bs)
+{
+    return bdrv_getlength(bs->file);
+}
+
 static BlockDriver bdrv_blkdebug = {
     .format_name        = "blkdebug",
     .protocol_name      = "blkdebug",
@@ -437,6 +442,7 @@ static BlockDriver bdrv_blkdebug = {
 
     .bdrv_file_open     = blkdebug_open,
     .bdrv_close         = blkdebug_close,
+    .bdrv_getlength     = blkdebug_getlength,
 
     .bdrv_aio_readv     = blkdebug_aio_readv,
     .bdrv_aio_writev    = blkdebug_aio_writev,