diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-01-08 15:55:54 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-01-30 20:59:41 +0000 |
| commit | c53cb427695214a9cb53e8ace4307c91a6b6e406 (patch) | |
| tree | 7c5a0cf51c5cbc01cfd3d0b50a5ec2619149da18 /include | |
| parent | 928173659d6e5dc368284f73f90ea1d129e1f57d (diff) | |
block: eliminate BDRV_REQ_NO_SERIALISING
It is unused since commit 00e30f0 ("block/backup: use backup-top instead
of write notifiers", 2019-10-01), drop it to simplify the code.
While at it, drop redundant assertions on flags.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1578495356-46219-2-git-send-email-pbonzini@redhat.com
Message-Id: <1578495356-46219-2-git-send-email-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include')
| -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, |