diff options
Diffstat (limited to 'include/block/block.h')
| -rw-r--r-- | include/block/block.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/block/block.h b/include/block/block.h index e5dd22b034..9d4050220b 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -269,12 +269,13 @@ enum { BLK_PERM_RESIZE = 0x08, /** - * This permission is required to change the node that this BdrvChild - * points to. + * There was a now-removed bit BLK_PERM_GRAPH_MOD, with value of 0x10. QEMU + * 6.1 and earlier may still lock the corresponding byte in block/file-posix + * locking. So, implementing some new permission should be very careful to + * not interfere with this old unused thing. */ - BLK_PERM_GRAPH_MOD = 0x10, - BLK_PERM_ALL = 0x1f, + BLK_PERM_ALL = 0x0f, DEFAULT_PERM_PASSTHROUGH = BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE |