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[Qemu-devel] [PATCH v2 00/14] qemu-img map: Allow driver to return file
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH v2 00/14] qemu-img map: Allow driver to return file of the allocated block |
Date: |
Wed, 25 Nov 2015 15:38:59 +0800 |
v2: Add Eric's rev-by in patches 2, 4, 5.
01: Refering -> referring in commit message. [Eric]
Recurse to "file" for sensible "zero" flag. [Paolo]
12: New. Make MapEntry a QAPI struct. [Paolo, Markus]
I stumbled upon this when looking at external bitmap formats.
Current "qemu-img map" command only displays filename if the data is allocated
in bs (bs->file) itself, or in the backing chain. Otherwise, it displays an
unfriendly error message:
$ qemu-img create -f vmdk -o subformat=monolithicFlat /tmp/test.vmdk 1G
$ qemu-img map /tmp/test.vmdk
Offset Length Mapped to File
qemu-img: File contains external, encrypted or compressed clusters.
This can be improved. This series extends the .bdrv_co_get_block_status
callback, to let block driver return the BDS of file; then updates all driver
to implement it; and lastly, it changes qemu-img to use this information in
"map" command:
$ qemu-img map /tmp/test.vmdk
Offset Length Mapped to File
0 0x40000000 0 /tmp/test-flat.vmdk
$ qemu-img map --output json /tmp/test.vmdk
[{"length": 1073741824, "start": 0, "zero": false, "offset": 0, "depth": 0,
"file": "/tmp/test-flat.vmdk", "data": true}
]
Fam Zheng (14):
block: Add "file" output parameter to block status query functions
qcow: Assign bs->file->bs to file in qcow_co_get_block_status
qcow2: Assign bs->file->bs to file in qcow2_co_get_block_status
raw: Assign bs to file in raw_co_get_block_status
iscsi: Assign bs to file in iscsi_co_get_block_status
parallels: Assign bs->file->bs to file in
parallels_co_get_block_status
qed: Assign bs->file->bs to file in bdrv_qed_co_get_block_status
sheepdog: Assign bs to file in sd_co_get_block_status
vdi: Assign bs->file->bs to file in vdi_co_get_block_status
vpc: Assign bs->file->bs to file in vpc_co_get_block_status
vmdk: Return extent's file in bdrv_get_block_status
qemu-img: Make MapEntry a QAPI struct
qemu-img: Use QAPI visitor to generate JSON
iotests: Add "qemu-img map" test for VMDK extents
block/io.c | 42 +++++++++++++-------
block/iscsi.c | 9 ++++-
block/mirror.c | 3 +-
block/parallels.c | 3 +-
block/qcow.c | 3 +-
block/qcow2.c | 3 +-
block/qed.c | 6 ++-
block/raw-posix.c | 4 +-
block/raw_bsd.c | 4 +-
block/sheepdog.c | 5 ++-
block/vdi.c | 3 +-
block/vmdk.c | 13 +++----
block/vpc.c | 4 +-
block/vvfat.c | 2 +-
include/block/block.h | 6 ++-
include/block/block_int.h | 3 +-
qapi/block-core.json | 28 ++++++++++++++
qemu-img.c | 80 +++++++++++++++++++++-----------------
tests/qemu-iotests/059 | 10 +++++
tests/qemu-iotests/059.out | 38 ++++++++++++++++++
tests/qemu-iotests/122.out | 96 ++++++++++++++++++++++++++--------------------
21 files changed, 251 insertions(+), 114 deletions(-)
--
2.4.3
- [Qemu-devel] [PATCH v2 00/14] qemu-img map: Allow driver to return file of the allocated block,
Fam Zheng <=
- [Qemu-devel] [PATCH v2 01/14] block: Add "file" output parameter to block status query functions, Fam Zheng, 2015/11/25
- [Qemu-devel] [PATCH v2 03/14] qcow2: Assign bs->file->bs to file in qcow2_co_get_block_status, Fam Zheng, 2015/11/25
- [Qemu-devel] [PATCH v2 02/14] qcow: Assign bs->file->bs to file in qcow_co_get_block_status, Fam Zheng, 2015/11/25
- [Qemu-devel] [PATCH v2 04/14] raw: Assign bs to file in raw_co_get_block_status, Fam Zheng, 2015/11/25
- [Qemu-devel] [PATCH v2 05/14] iscsi: Assign bs to file in iscsi_co_get_block_status, Fam Zheng, 2015/11/25
- [Qemu-devel] [PATCH v2 06/14] parallels: Assign bs->file->bs to file in parallels_co_get_block_status, Fam Zheng, 2015/11/25
- [Qemu-devel] [PATCH v2 07/14] qed: Assign bs->file->bs to file in bdrv_qed_co_get_block_status, Fam Zheng, 2015/11/25