tree 304dd438b200f766a1e8e0d18c9098447e0bb60b
parent 286374f16610323722ae4a3871be4b8d4c2b0001
author Ken Sumrall <ksumrall@android.com> 1363754799 -0700
committer Ken Sumrall <ksumrall@android.com> 1363943955 -0700

Vold: Add the fstrim subsystem to vold

The fstrim subsystem implements the dotrim command, which goes
through all the writable filesystems on the device, and invokes
the FITRIM ioctl() on them.  This marks all the unused blocks on
the underlying flash device as unused, so the device performs better.

Change-Id: I5fc8c2f60e0bc823f162d0f89580fb288ecb2160