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The .get_acl() method now gets passed a mnt_idmap arg, and we can now choose to implement either .get_acl() or .get_inode_acl(). Technically .get_acl() is a new implementation, and .get_inode_acl() is the old. That second method now also gets an rcu flag passed, but we should be fine either way. Deeper under the covers however we do need to hook up the .set_acl() method for inodes, otherwise setfacl will just fail with -ENOTSUPP. To make this not super messy (it already is) we tack on the get_acl() changes here. This is all roughly ca. v6.1-rc1-4-g7420332a6ff4. 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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