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June 25 - 27 - Beijing, China
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Wednesday, June 27 • 15:10 - 15:50
overlayfs: Current Status and Upcoming Future - Yi Zhang, Huawei (slides attached)

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overlay filesystem is a kind of union-filesystem for Linux which has been widely used, such as container. It is
base on basic filesystem(s) and merge different layers(filesystems/directories) hierarchically into one, and share objects in basic layers between different overlay filesystems.
In the past year, a lot of defects have been repaired and some new features has been added into the Linux kernel upstream, such as "constant inode number", "prevent hardlink break" and "nfs export" by Amir Goldstein, and user space program fsck.overlay is under way now. However, there are still many drawbacks for various technical reasons.
This topic gives the description of the overlay filesystem, the merged features in the past year and the upcoming features have been proposed and discussed in the Linux community.


Yi Zhang

Software Engineer, Huawei
Yi Zhang, Software engineer, Huawei Technologies Inc. Work in Huawei kernel team, focus on ext4 filesystem and overlay filesystem.

Wednesday June 27, 2018 15:10 - 15:50 CST
  Linux Systems