diff options
Diffstat (limited to 'include/block/block.h')
| -rw-r--r-- | include/block/block.h | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/include/block/block.h b/include/block/block.h index e9dcfef7fa..23c76421e4 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -51,18 +51,6 @@ typedef enum { */ BDRV_REQ_MAY_UNMAP = 0x4, - /* - * The BDRV_REQ_NO_SERIALISING flag is only valid for reads and means that - * we don't want wait_serialising_requests() during the read operation. - * - * This flag is used for backup copy-on-write operations, when we need to - * read old data before write (write notifier triggered). It is okay since - * we already waited for other serializing requests in the initiating write - * (see bdrv_aligned_pwritev), and it is necessary if the initiating write - * is already serializing (without the flag, the read would deadlock - * waiting for the serialising write to complete). - */ - BDRV_REQ_NO_SERIALISING = 0x8, BDRV_REQ_FUA = 0x10, BDRV_REQ_WRITE_COMPRESSED = 0x20, |