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block: fix cache flushing in bdrv_commit

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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Christoph Hellwig 2010-01-17 12:32:30 +01:00 committed by Anthony Liguori
parent 23fabed136
commit 1d44952fc7
1 changed files with 6 additions and 3 deletions
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9
block.c
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@ -557,6 +557,7 @@ int bdrv_commit(BlockDriverState *bs)
BlockDriver *drv = bs->drv;
int64_t i, total_sectors;
int n, j;
int ret = 0;
unsigned char sector[512];
if (!drv)
@ -588,8 +589,10 @@ int bdrv_commit(BlockDriverState *bs)
}
}
if (drv->bdrv_make_empty)
return drv->bdrv_make_empty(bs);
if (drv->bdrv_make_empty) {
ret = drv->bdrv_make_empty(bs);
bdrv_flush(bs);
}
/*
* Make sure all data we wrote to the backing device is actually
@ -597,7 +600,7 @@ int bdrv_commit(BlockDriverState *bs)
*/
if (bs->backing_hd)
bdrv_flush(bs->backing_hd);
return 0;
return ret;
}
/*