Patchwork [12/25] blkdebug: pass getlength to underlying file

login
register
mail settings
Submitter Kevin Wolf
Date July 9, 2012, 2:16 p.m.
Message ID <1341843388-5663-13-git-send-email-kwolf@redhat.com>
Download mbox | patch
Permalink /patch/169884/
State New
Headers show

Comments

Kevin Wolf - July 9, 2012, 2:16 p.m.
From: Paolo Bonzini <pbonzini@redhat.com>

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>
---
 block/blkdebug.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

Patch

diff --git a/block/blkdebug.c b/block/blkdebug.c
index 1f79ef2..b084a23 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,