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| author | Alberto Garcia <berto@igalia.com> | 2020-07-10 18:13:08 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2020-08-25 08:33:20 +0200 |
| commit | ff4cdec7f6e7302d2a82fdb627373c32aecb3dfe (patch) | |
| tree | c593312403ef3c10adf2e141030c710a021a4c6f | |
| parent | aca00cd971c830ad2a71cc881db33275d0a4107c (diff) | |
| download | focaccia-qemu-ff4cdec7f6e7302d2a82fdb627373c32aecb3dfe.tar.gz focaccia-qemu-ff4cdec7f6e7302d2a82fdb627373c32aecb3dfe.zip | |
qcow2: Clear the L2 bitmap when allocating a compressed cluster
Compressed clusters always have the bitmap part of the extended L2 entry set to 0. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-Id: <04455b3de5dfeb9d1cfe1fc7b02d7060a6e09710.1594396418.git.berto@igalia.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
| -rw-r--r-- | block/qcow2-cluster.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 816ddc7639..1e84bd8e2e 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -862,6 +862,9 @@ int qcow2_alloc_compressed_cluster_offset(BlockDriverState *bs, BLKDBG_EVENT(bs->file, BLKDBG_L2_UPDATE_COMPRESSED); qcow2_cache_entry_mark_dirty(s->l2_table_cache, l2_slice); set_l2_entry(s, l2_slice, l2_index, cluster_offset); + if (has_subclusters(s)) { + set_l2_bitmap(s, l2_slice, l2_index, 0); + } qcow2_cache_put(s->l2_table_cache, (void **) &l2_slice); *host_offset = cluster_offset & s->cluster_offset_mask; |