[HDFS-11904] Reuse iip in unprotectedRemoveXAttrs calls

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.9.0, 3.0.0-alpha4
• Target Version/s: 2.9.0
• Hadoop Flags: Reviewed
• Assignee: Xiao Chen
• Reporter: Xiao Chen
• Created: 30/May/17 23:21
• Updated: 24/Apr/18 20:51
• Resolved: 01/Jun/17 21:19

Description

In HDFS-10939, unprotectedSetXAttrs was optimized to use IIP instead of path string.
This jira is to do the same on unprotectedRemoveXAttrs.

No performance test specifically for this is done yet, but it's not hard to see a usage pattern of frequent removexattr could induce perf issues.