build_image: Do not do fstrim for unmounted filesystems
CL:751809 removed a check to bypass zeroing unallocated blocks when the
filesystem is unmounted like squashfs or ubifs partitions. This CL puts
that check back.
BUG=chromium:780291,chromium:782453,b:69042809
TEST=precq runs
Change-Id: Ia81926c3d1821e1ee2ea84b7cabe846f8fdbde2d
Reviewed-on: https://chromium-review.googlesource.com/757158
Commit-Ready: Ian Coolidge <icoolidge@google.com>
Tested-by: Ian Coolidge <icoolidge@google.com>
Reviewed-by: Gwendal Grignou <gwendal@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed
