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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-09-04 19:00:30 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-09-06 15:25:09 +0200 |
| commit | 4bc74be997a72922170f4f272fd5e8074a3ecc27 (patch) | |
| tree | c3b466014f752398a8b9543e99da0651bb12c759 /block/qcow.c | |
| parent | 4333bb71405f58a8dc8d3255feb3ca5960b0daf8 (diff) | |
block: return get_block_status data and flags for formats
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/qcow.c')
| -rw-r--r-- | block/qcow.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/block/qcow.c b/block/qcow.c index 0d76656a04..93a993bb44 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -410,7 +410,14 @@ static int64_t coroutine_fn qcow_co_get_block_status(BlockDriverState *bs, if (n > nb_sectors) n = nb_sectors; *pnum = n; - return (cluster_offset != 0); + if (!cluster_offset) { + return 0; + } + if ((cluster_offset & QCOW_OFLAG_COMPRESSED) || s->crypt_method) { + return BDRV_BLOCK_DATA; + } + cluster_offset |= (index_in_cluster << BDRV_SECTOR_BITS); + return BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID | cluster_offset; } static int decompress_buffer(uint8_t *out_buf, int out_buf_size, |