tree 0386991a31be217d2f511cea98f3b0ad3641e8c5
parent 3464bc4b439e01244c0a6b5f35e8e949e0f16096
author Jerry Zhang <zhangjerry@google.com> 1521507279 -0700
committer Jerry Zhang <zhangjerry@google.com> 1526507086 +0000

adb: Retry io in case of interrupt

io_submit sleeps waiting for the gadget
to be enabled. Currently if that sleep
is interrupted it will shut down adb,
causing it to have to start back up again.

Rather than return EINTR if interrupted,
io_submit actually completes and the EINTR
is found later when looking through events.
Since an io that is interrupted will be
small anyway, add a loop to retry small ios.

Also upgrade aio logs in accordance with
their importance.

Fixes: 75981904
Test: adb works, logs show successful interrupt handling
Change-Id: I35973fce130ee849ce59fef80d15b65afb816ba4
(cherry picked from commit 6e9a327504e6aa2488b736fd5592525278a0916f)