On Tue, Jun 13, 2017 at 10:20:51PM +0200, Max Reitz wrote:
> === Series dependencies ===
>
> This series depends on v7 of Stefan's series
> "qemu-img: add measure sub-command"
> (http://lists.nongnu.org/archive/html/qemu-devel/2017-06/msg03035.html).
>
>
> === Actual cover letter ===
>
> This series adds preallocation to bdrv_truncate() and subsequently
> qemu-img resize. This is implemented for qcow2 and raw only, just like
> preallocation for newly created images is. There is no runtime interface
> for this new parameter (yet).
>
>
> v4:
> - Patch 4:
> - Note bug fix in commit message [Eric]
> - "...may result in *slightly* more data being allocated..." [Eric]
> - Patch 11:
> - Drop the "image may now occupy more space than necessary" note --
> that's always the case when preallocation failed, and I don't really
> want to mention it everywhere
> - Flush metadata after preallocation [Stefan]
>
>
> git-backport-diff against v3:
>
> Key:
> [----] : patches are identical
> [####] : number of functional differences between upstream/downstream patch
> [down] : patch is downstream-only
> The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively
>
> 001/16:[----] [--] 'block: Add PreallocMode to BD.bdrv_truncate()'
> 002/16:[----] [--] 'block: Add PreallocMode to bdrv_truncate()'
> 003/16:[----] [--] 'block: Add PreallocMode to blk_truncate()'
> 004/16:[0002] [FC] 'qemu-img: Expose PreallocMode for resizing'
> 005/16:[----] [--] 'block/file-posix: Small fixes in raw_create()'
> 006/16:[----] [--] 'block/file-posix: Extract raw_regular_truncate()'
> 007/16:[----] [--] 'block/file-posix: Generalize raw_regular_truncate'
> 008/16:[----] [--] 'block/file-posix: Preallocation for truncate'
> 009/16:[----] [--] 'block/qcow2: Generalize preallocate()'
> 010/16:[----] [--] 'block/qcow2: Lock s->lock in preallocate()'
> 011/16:[0013] [FC] 'block/qcow2: Metadata preallocation for truncate'
> 012/16:[----] [--] 'block/qcow2: Add qcow2_refcount_area()'
> 013/16:[----] [--] 'block/qcow2: Rename "fail_block" to just "fail"'
> 014/16:[----] [--] 'block/qcow2: falloc/full preallocating growth'
> 015/16:[----] [--] 'iotests: Add preallocated resize test for raw'
> 016/16:[----] [--] 'iotests: Add preallocated growth test for qcow2'
>
>
> Max Reitz (16):
> block: Add PreallocMode to BD.bdrv_truncate()
> block: Add PreallocMode to bdrv_truncate()
> block: Add PreallocMode to blk_truncate()
> qemu-img: Expose PreallocMode for resizing
> block/file-posix: Small fixes in raw_create()
> block/file-posix: Extract raw_regular_truncate()
> block/file-posix: Generalize raw_regular_truncate
> block/file-posix: Preallocation for truncate
> block/qcow2: Generalize preallocate()
> block/qcow2: Lock s->lock in preallocate()
> block/qcow2: Metadata preallocation for truncate
> block/qcow2: Add qcow2_refcount_area()
> block/qcow2: Rename "fail_block" to just "fail"
> block/qcow2: falloc/full preallocating growth
> iotests: Add preallocated resize test for raw
> iotests: Add preallocated growth test for qcow2
>
> block/qcow2.h | 9 +
> include/block/block.h | 3 +-
> include/block/block_int.h | 3 +-
> include/sysemu/block-backend.h | 3 +-
> block.c | 5 +-
> block/blkdebug.c | 5 +-
> block/block-backend.c | 5 +-
> block/commit.c | 4 +-
> block/crypto.c | 4 +-
> block/file-posix.c | 201 +++++++++++++--------
> block/file-win32.c | 9 +-
> block/gluster.c | 8 +-
> block/iscsi.c | 9 +-
> block/mirror.c | 3 +-
> block/nfs.c | 9 +-
> block/parallels.c | 13 +-
> block/qcow.c | 8 +-
> block/qcow2-refcount.c | 277 +++++++++++++++++++----------
> block/qcow2.c | 205 +++++++++++++++++++---
> block/qed.c | 11 +-
> block/raw-format.c | 5 +-
> block/rbd.c | 9 +-
> block/sheepdog.c | 11 +-
> block/vdi.c | 3 +-
> block/vhdx-log.c | 2 +-
> block/vhdx.c | 8 +-
> block/vmdk.c | 7 +-
> block/vpc.c | 2 +-
> blockdev.c | 2 +-
> qemu-img.c | 33 +++-
> qemu-io-cmds.c | 2 +-
> qemu-img.texi | 7 +-
> tests/qemu-iotests/044.out | 2 +-
> tests/qemu-iotests/106 | 92 ++++++++++
> tests/qemu-iotests/106.out | 50 ++++++
> tests/qemu-iotests/125 | 130 ++++++++++++++
> tests/qemu-iotests/125.out | 386 +++++++++++++++++++++++++++++++++++++++++
> tests/qemu-iotests/group | 2 +
> 38 files changed, 1313 insertions(+), 234 deletions(-)
> create mode 100755 tests/qemu-iotests/106
> create mode 100644 tests/qemu-iotests/106.out
> create mode 100755 tests/qemu-iotests/125
> create mode 100644 tests/qemu-iotests/125.out
>
> --
> 2.9.4
>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>