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[Qemu-devel] compressed VMDKs and BDRV_BLOCK_OFFSET_VALID


From: Peter Lieven
Subject: [Qemu-devel] compressed VMDKs and BDRV_BLOCK_OFFSET_VALID
Date: Mon, 24 Feb 2014 14:48:26 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0

Hi,

I wonder if the current output of get_block_status for compressed VMDKs is 
correct or
if we need this patch?:

diff --git a/block/vmdk.c b/block/vmdk.c
index ff6f5ee..5fa29b0 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1146,7 +1146,7 @@ static int64_t coroutine_fn 
vmdk_co_get_block_status(BlockDriverState *bs,
         break;
     case VMDK_OK:
         ret = BDRV_BLOCK_DATA;
-        if (extent->file == bs->file) {
+        if (extent->file == bs->file && !extent->compressed) {
             ret |= BDRV_BLOCK_OFFSET_VALID | offset;
         }

Peter



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