tree d1e9b32f133e95afe5577964a2639fde15235f60
parent 6a4a33e39ea2fa8626335f6b9cccf407c71c0588
author Tao Bao <tbao@google.com> 1438031228 -0700
committer Tao Bao <tbao@google.com> 1438031829 -0700

updater: Hoist fsync() to outer loop.

Currently the fsync() inside write_all() may be called multiple times
when performing a command. Move that to the outer loop and call it
only after completing the command.

Also remove the O_SYNC flag when writing a stash.

Change-Id: I71e51d76051a2f7f504eef1aa585d2cb7a000d80