Specifically, detect if the umount failed due to current access, if so,
give it up to 9 more runs (w/ 1s pauses) continuing only if it's still
failing due to currently open files.
Via this, it should suppress the race of gvfs/trashd looking at
quick mounted/umounted pathways.
This CL is a two parter; this adds the script, and converts common.sh
consumers over to using the override.
The next CL will modify the chroot itself to ensure our script gets
picked up/used.
BUG=chromium-os:23443
TEST=trybot, manul validation.
Change-Id: I92dedd91d6133c2063b1e5dbbc1a68366844801d
Reviewed-on: https://gerrit.chromium.org/gerrit/32087
Commit-Ready: Brian Harring <ferringb@chromium.org>
Reviewed-by: Brian Harring <ferringb@chromium.org>
Tested-by: Brian Harring <ferringb@chromium.org>
