[LU-15204] cfs_hash_for_each_empty() don't rescan on hash version's change

• Type: Improvement
• Resolution: Duplicate
• Priority: Minor
• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

cfs_hash_for_each_empty() is supposed to empty hashtable, it has own loop to repeat if hashtable is still non-empty, so there is no need to rescan in cfs_hash_for_each_relax() if version changes (due to item removal)