Some VHDX bug fixes, including:

1. Checking bdrv_getlength(), bdrv_flush(), and bdrv_truncate() return values

Changes from v1->v2:

git-backport-diff -r qemu/master.. -u vhdx-fixes-v1
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

001/4:[0013] [FC] 'block/vhdx: check error return of bdrv_getlength()'
       ^^^^
Some code cleanup / movement (Thanks Kevin)

002/4:[0002] [FC] 'block/vhdx: check for offset overflow to bdrv_truncate()'
       ^^^^
Use QEMU_ALIGN_UP (Thanks Eric)

003/4:[down] 'block/vhdx: check error return of bdrv_flush()'

New, suggested by Kevin.

004/4:[down] 'block/vhdx: check error return of bdrv_truncate()'

New.

1. Check for error when calling bdrv_getlength() [Markus]

2. Check for overflow in offset prior to calling bdrv_truncate().

Jeff Cody (4):
  block/vhdx: check error return of bdrv_getlength()
  block/vhdx: check for offset overflow to bdrv_truncate()
  block/vhdx: check error return of bdrv_flush()
  block/vhdx: check error return of bdrv_truncate()

 block/vhdx-log.c | 52 ++++++++++++++++++++++++++++++++++++++++++----------
 block/vhdx.c     | 12 +++++++++++-
 2 files changed, 53 insertions(+), 11 deletions(-)

-- 
2.9.4

Am 07.08.2017 um 14:38 hat Jeff Cody geschrieben:
> 
> Some VHDX bug fixes, including:
> 
> 1. Checking bdrv_getlength(), bdrv_flush(), and bdrv_truncate() return values

Thanks, applied to the block branch.

Kevin