[LU-812] Support for Linux 3.0 kernels

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.0
• Assignee: Yang Sheng
• Reporter: Cory Spitz

Description

Cray is interested in bringing Linux 3.0 support to clients and servers. We'll focus on clients first since that will obviously be easiest. However, Lustre won't even configure in a Linux 3.0 environment. Initially, we plan on submitting patches to the build process going. Eventually, we'll work our way up to the server patch series. Of course, the BKL was removed and we'll be looking for suggestions on how to work around that and other major changes. I presume that RHEL will go to Linux 3.x eventually, but Cray will initially be focusing on SLES SP2. Hopefully we can find a way to make the patch sets similar.

We'd like to at least have 3.0 clients be considered upstream for Lustre 2.3.

Issue Links

• is duplicated by: LU-3518 liblustreapi.a not forward compatible between 2.1.5 and 2.3.0 (maybe others)
• is related to: LU-14877 Lock inversion between inode mutex and layout mutex
• is related to: LU-2196 Build shared version of liblustreapi
• is related to: LU-2148 Kernel update for latest FC18 kernel
• is related to: LU-1718 fix Lustre NFS re-export for 3.0+ kernels
• Trackbacks: Lustre Community Development in Progress Features are being developed for future Lustre releases both at Whamcloud and by other organizations in the Lustre community. These will be eligible for inclusion in future Lustre releases as per our processes