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Auke Kok
9737009437
During inode deletion, scoutfs_xattr_drop forgot to set the xid of the xattr after calling parse_indx_key, which hardcodes xid=0, and it is the callers' responsibility. delete_force then deletes the wrong key, and returns no errors on nonexistant keys. So now there is a pending deletion for a non-existant indx and an orphan indx entry in the tree. Subsequent calls to `scoutfs read-xattr-index` will thus return entries for deleted inodes. Signed-off-by: Auke Kok <auke.kok@versity.com>
Introduction
scoutfs is a clustered in-kernel Linux filesystem designed to support large archival systems. It features additional interfaces and metadata so that archive agents can perform their maintenance workflows without walking all the files in the namespace. Its cluster support lets deployments add nodes to satisfy archival tier bandwidth targets.
The design goal is to reach file populations in the trillions, with the archival bandwidth to match, while remaining operational and responsive.
Highlights of the design and implementation include:
- Fully consistent POSIX semantics between nodes
- Atomic transactions to maintain consistent persistent structures
- Integrated archival metadata replaces syncing to external databases
- Dynamic seperation of resources lets nodes write in parallel
- 64bit throughout; no limits on file or directory sizes or counts
- Open GPLv2 implementation
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