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qcow1: Fix compressed images (Kevin Wolf)

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Revert r4673, the removed dead code wasn't dead in fact.

Additionally, change the misleading else which tricks the reader into
believing that allocate is a boolean to else if (allocate == 2).

Signed-off-by: Kevin Wolf <kwolf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6244 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-01-08 19:29:03 +00:00
parent 062e55272e
commit 7f48fa1f05
1 changed files with 25 additions and 20 deletions
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5
block-qcow.c
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@ -339,6 +339,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
return -1; return -1;
} else { } else {
cluster_offset = bdrv_getlength(s->hd); cluster_offset = bdrv_getlength(s->hd);
if (allocate == 1) {
/* round to cluster size */ /* round to cluster size */
cluster_offset = (cluster_offset + s->cluster_size - 1) & cluster_offset = (cluster_offset + s->cluster_size - 1) &
~(s->cluster_size - 1); ~(s->cluster_size - 1);
@ -362,6 +363,10 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
} }
} }
} }
} else if (allocate == 2) {
cluster_offset |= QCOW_OFLAG_COMPRESSED |
(uint64_t)compressed_size << (63 - s->cluster_bits);
}
} }
/* update L2 table */ /* update L2 table */
tmp = cpu_to_be64(cluster_offset); tmp = cpu_to_be64(cluster_offset);