NFS Priorities Client

No.

Description

Lead developer

Resource estimate

Interested parties

1

Delegations: Finish kernel implementation

• Write delegation: test current patch
• CB_GETATTR: no current code
• RPCSEC_GSS on the callback path
• Add break_lease() calls to VFS rename and unlink operations
• Implement reclaim OPEN of type CLAIM_DELEGATE_PREV
• New file system call to set up callbacks so that symmetric cluster-fs-backed filesystems can give out delegations
• Design a policy interface for delegations: when does the server hand out a delegation?

andros

2 developer-month
2 test-month

andros, bfields

2

Byte-range Locking

• Review VFS POSIX lock implemetation: remove known races
• Review proposed added async callbacks for file_operations->lock needed so that symmetric cluster-fs-backed filesystems can hand out byte-range locks over Lockd and NFSv4.
• Implement a fair list for blocking byte-range locks. Use ->lock callbacks

andros

1 developer-months
1 test-months

andros, bfields

3

OPEN share locking with deny access support

• New file system non POSIX OPEN call with deny access bits. Async callbacks to support fi to set up callbacks so that symmetric cluster-fs-backed filesystems can give out delegations

andros

1 developer-month
1 test-month

andros, bfields

4

ACL support

• finish testing basic NFSv4 implementation

bfields

1 test-month

All interested in NFS ACL support, all versions

5

Server reboot recovery

• Code review and test recovery directory implementation
• Save SETCLIENTID principal in file under clientid directory

andros

1/2 developer-month

andros

6

Server support for fs_locations

• Review implemetation
• Write a name space management tool
• Develop test suites

bfields

2 developer-months
1 test-months

bfields, jiayingz

7

Server support for SECINFO

• Support for multiple security flavors per export
• Develop test suites

andros

1 developer-month
1 test-month

andros, bfields

8

pynfs client test Failures

• Bug fixes for all pynfs tests

bfields

1 developer-month

bfields,issaman

9

RPCSEC_GSS/Krb5 privacy support

bfields

All interested in NFSv4 client feature-completeness

10

Server SPKM3 and LIPKEY support

• Update existing kernel code including privacy and keyring integration
• Finish user-land spkm3 libraries

andros

andros, kwc

No.

Description

Lead developer

Resource estimate

Interested parties

1

Server support for NFSv4 named attributes

• Revitalize/join Linux community discussion on a VFS sub-directory named attribute architecture.

bfields

All interested in NFSv4 client feature-completeness

2

NFSv4.0 Duplicate Reply Cache

• Integrate portions of the Sessions minor version DRC
• Per operation, not per RPC DRC

andros

1 delevoper-month

baumanj

3

Stability and performance testing

OSDL

On-going

CITI and OSDL

4

Review server code

• General code review
• Add reference counting for state structures
• XDR decode rewrite
• Review all dprintks

bfields

1 developer-months
1 test-month

All interested in NFSv4 stability

5

NFSv4 Idmapper and gssd improvements

• scalability
• more flexible ID mapping

unassigned

3 developer-months
1 test-month

All interested in NFSv4 client configurability, performance, and scalability

6

RPC server transport switch

• design and implementation of transport switch

cel

4 developer-months
1 test-month

All interested in IPv6, NFS/RDMA, and other advanced features

7

GSS scalability

• RPCGSS_SEC window
• Threaded rpc.svcgssd
• Server gss upcall performance

andros

1 developer-month
1 test-month

andros, kwc, bfields

No.

Description

Lead developer

Resource estimate

Interested parties

1

Support for IPv6

Groupe Bull

2 developer-months
3 test-months

All interested in generic support for NFS over IPv6

8

Support for NFSv4.1 sessions

baumanj

2 developer-months
1 test-month

All interested in NFS/RDMA, or in improved DRC behavior

No.

Description

Lead developer

Resource estimate

Interested parties

1

Maintaining the Linux NFS FAQ

cel

1 developer-month per year

2

Performance characterization and regression testing

unassigned

24 test-months per year

All interested in generic NFS client stability