When Linux 3.18-rc1 was released last week, one week sooner than anticipated, Linus Torvalds mentioned he was willing to still allow OverlayFS to be merged this cycle.
Al Viro sent in a new VFS pull request that finally has OverlayFS ready for landing. OverlayFS has been aiming for Linux 3.18 and it’s finally moving ahead while already having a lot of users even though it’s not been part of the mainline kernel tree.
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