tree b4572b9200ef1a08657895faddaa8202b12976fc
parent 5d799bb97ca8759f39a35f1121f77b03c4efbfba
author John Edward Broadbent <jebr@google.com> 1648780401 -0700
committer John Edward Broadbent <jebr@google.com> 1650056459 -0700

Fix Short read/write issue

It was possible for "short" reads and writes to cause the pattern and
zero steps to not work correctly. This change adds logic to deal with
the short reads.

Tested: unit test and machine test
root@bmc# time busctl call xyz.openbmc_project.eStoraged.mmcblk0 \
> /xyz/openbmc_project/inventory/storage/mmcblk0 \
> xyz.openbmc_project.Inventory.Item.Volume Erase s \
> xyz.openbmc_project.Inventory.Item.Volume.EraseMethod.ZeroOverWrite \
> --timeout=1200
real    6m0.815s
user    0m0.010s
sys     0m0.010s

Change-Id: If8df9bdba159a3bcfa77104a4c17b8d352794db2
Signed-off-by: John Edward Broadbent <jebr@google.com>