[Qemu-devel] [RFC PATCH v4 0/4] qemu-img: add preallocation=full

[Hu Tao]

This series implements full image preallocation to create a non-sparse image
file at creation time, both for raw and qcow2 format. The purpose is to avoid
performance deterioration of the guest cause by sparse image.

v4:  - remove bdrv_preallocate and make preallocation a bdrv_create_file option
     - prealloc_mode -> PreallocMode and add it to QAPI
     - fix return value in raw_preallocate2

Hu Tao (4):
  qapi: introduce PreallocMode
  raw,qcow2: don't convert file size to sector size
  raw-posix: Add full image preallocation option
  qcow2: Add full image preallocation option

 block/qcow2.c     | 64 +++++++++++++++++++++++++++++++++++++++++++++----------
 block/raw-posix.c | 50 +++++++++++++++++++++++++++++++++++++++++--
 qapi-schema.json  | 12 +++++++++++
 3 files changed, 113 insertions(+), 13 deletions(-)

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1.7.11.7