[LU-11282] osd-zfs to discard cache quickly if configured

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.0
• Environment: zfs
• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

osd-ldiskfs has an option to discard buffers (pagecache) right after processing. this can be useful in cases when data is not reused generally.

osd-zfs should provide a similar capability.