XFS status update for June 2009

On June 9th we finally saw the release of Linux 2.6.30. For XFS this release mostly contains the improved ENOSPC handling, but also various smaller bugfixes and lots of cleanups. The code size of XFS decreased again by 500 lines of code in this release.

The Linux 2.6.31 merge opened in the mid of the month and some big XFS changes have been pushed: A removal of the quotaops infrastructure which simplifies the quota implementation, the switch from XFS's own Posix ACL implementation to the generic one shared by various other filesystems which also supports in-memory caching of ACLs and another incremental refactoring of the sync code.

A patch to better track dirty inodes and work around issues in the way the VFS updates the access time stamp on inodes has been reposted and discussed. Another patch to converting the existing XFS tracing infrastructure to use the ftrace even tracer has been posted.

On the userspace side there have been a few updates to xfsprogs, including some repair fixes and a new fallocate command for xfs_io. There were major updates for xfstests: The existing aio-dio-regress testsuite has been merged into xfstests, and various changes went into the tree to make xfstests better suitable for use with other filesystems.

The attr and acl projects which have been traditionally been hosted as part of the XFS userspace utilities have now been split into a separate project maintained by Andreas Gruenbacher, who has been doing most of the work on it, and moved to the Savannah hosting platform.

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