[LU-6038] ZFS 0.6.4 Compatibility

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.8.0
• Affects Version/s: Lustre 2.7.0
• Labels: patch zfs
• Severity: 3
• Assignee: Nathaniel Clark
• Reporter: Brian Behlendorf

Description

The following pull requests are targeted to be merged for the spl/zfs-0.6.4 tag.

https://github.com/zfsonlinux/spl/pull/414
https://github.com/zfsonlinux/zfs/pull/2918

This is important from a Lustre perspective because they 1) retire the sa_spill_alloc() / sa_spill_free() interfaces currently used by Lustre in favor of the more memory efficient zio_buf_alloc() / zio_buf_free(). And 2) they define KM_SLEEP which shouldn't have caused any problems but Lustre makes some assumptions about how it's defined.

Lustre must be updated to use the new interfaces, I'll be posting patches for this shortly.

Issue Links

• is blocking: LU-6477 Update ZFS/SPL version to 0.6.4.1
• is related to: LU-5826 build broken by new spl includes
• is related to: LU-6149 build broken by latest spl
• is related to: LU-6459 Backport ZFS on Linux 0.6.4 compat changes to Lustre 2.5
• is related to: LU-6152 zfs large block support