[Ocfs2-devel] [LFS/MM TOPIC] fs reflink issues, fs online scrub/check, etc
Darrick J. Wong
darrick.wong at oracle.com
Wed Feb 10 11:18:48 PST 2016
[resend, email exploded, sorry...]
Hi,
I want to discuss a few FS related topics that I haven't already seen on
the mailing lists:
* Shared pagecache pages for reflinked files (and by extension making dax
work with reflink on xfs)
* Providing a simple interface for scrubbing filesystem metadata in the
background (the online check thing). Ideally we'd make it easy to discover
what kind of metadata there is to check and provide a simple interface to
check the metadata, once discovered. This is a tricky interface topic
since FS design differs pretty widely.
* Rudimentary online repair and rebuilding (xfs) from secondary metadata
* Working out the variances in the btrfs/xfs/ocfs2/nfs reflink implementations
and making sure they all get test coverage
I would also like participate in some of the proposed discussions:
* The ext4 summit (and whatever meeting of XFS devs may happen)
* Integrating existing filesystems into pmem, or hallway bofs about designing
new filesystems for pmem
* Actually seeing the fs developers (well, everyone!) in person again :)
--Darrick
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