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qcow2: fix some errors and typo in qcow2.txt

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Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Zhi Yong Wu 2011-10-27 14:58:57 +08:00 committed by Kevin Wolf
parent c794b4e0fd
commit 3789985f40
1 changed files with 3 additions and 3 deletions
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docs/specs/qcow2.txt
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@ -108,8 +108,8 @@ as follows:
refcount_block_entries = (cluster_size / sizeof(uint16_t)) refcount_block_entries = (cluster_size / sizeof(uint16_t))
refcount_block_index = (offset / cluster_size) % refcount_table_entries refcount_block_index = (offset / cluster_size) % refcount_block_entries
refcount_table_index = (offset / cluster_size) / refcount_table_entries refcount_table_index = (offset / cluster_size) / refcount_block_entries
refcount_block = load_cluster(refcount_table[refcount_table_index]); refcount_block = load_cluster(refcount_table[refcount_table_index]);
return refcount_block[refcount_block_index]; return refcount_block[refcount_block_index];
@ -211,7 +211,7 @@ switch the active L1 table, so that a different set of host clusters are
exposed to the guest. exposed to the guest.
When creating a snapshot, the L1 table should be copied and the refcount of all When creating a snapshot, the L1 table should be copied and the refcount of all
L2 tables and clusters reachable form this L1 table must be increased, so that L2 tables and clusters reachable from this L1 table must be increased, so that
a write causes a COW and isn't visible in other snapshots. a write causes a COW and isn't visible in other snapshots.
When loading a snapshot, bit 63 of all entries in the new active L1 table and When loading a snapshot, bit 63 of all entries in the new active L1 table and