Alyssa P. Hacker argues that xsyncfs cannot be implemented in user-level using a library like FUSE (see lab 2). She’s right.
Which parts of xsyncfs cannot be implemented in user-level? Would failing to implement these parts of xsyncfs violate the external synchrony guarantee? If so, why and how?
For an extra thought experiment: What would you additionally need to expose to user-level to allow file systems like xsyncfs to be implemented there? You don’t need to submit an answer to this question.
Local Stanford students should write up their response on a sheet of paper that includes their name. The sheet of paper with the response should be submitted immediately before lecture.
SCPD students should write up their response in a text file named
response.xsyncfs.txt and upload it via the submission and grades page.
You’ll need to sign in with your SUNetID to access the page. Responses will be
accepted until one week after the corresponding paper’s lecture.
In either case, the response should be short, likely only a pithy paragraph in length.
Tuesdays and Thursdays
4:30pm - 5:50pm
Gates B1
Dawson
Mondays
3:00pm - 5:00pm
Gates 314
Sergio
Mondays and Wednesdays
6:00pm - 7:30pm
Gates 288
Dawson Engler
Instructor
Gates 314
Sergio Benitez
Instructor
Gates 288
Spring 2015
Spring 2014
Winter 2013
Spring 2013
Spring 2012
Spring 2011
Spring 2010