tree c6184ee0a3460cbcdb054f0680187a786c2cfdb9
parent ab9db5284ec6113c7d84f70f805dca21c3e6efd7
author Tao Bao <tbao@google.com> 1452726320 -0800
committer Tao Bao <tbao@google.com> 1452749360 -0800

recovery: Fork a process for fuse when sideloading from SD card.

For applying update from SD card, we used to use a thread to serve the
file with fuse. Since accessing through fuse involves going from kernel
to userspace to kernel, it may run into deadlock (e.g. for mmap_sem)
when a page fault occurs. Switch to using a process instead.

Bug: 23783099
Bug: 26313124
Change-Id: Iac0f55b1bdb078cadb520cfe1133e70fbb26eadd