[#LU-15597] add an LDLM flag to mark lock is saved to avoid extra commit

Massive directory metadata operation performance decrease (LU-14146) [LU-15597] add an LDLM flag to mark lock is saved to avoid extra commit Created: 27/Feb/22 Updated: 02/Aug/23 Resolved: 02/Aug/23
Status:	Closed
Project:	Lustre
Component/s:	None
Affects Version/s:	None
Fix Version/s:	None

Type:

Technical task

Priority:

Minor

Reporter:

Lai Siyao

Assignee:

Lai Siyao

Resolution:

Done

Votes:

Labels:

None

Rank (Obsolete):

9223372036854775807

Description

On DNE system a write lock held by a transaction will be saved after transaction stop, and once it receives REP-ACK, this lock will be downgraded, however in this period, if a conflicting write lock is enqueued, it should trigger a commit, but if we know this lock is not saved, a "sync" flag can be set to avoid commit, and the commit will be triggered in saving time.

Comments

Comment by Gerrit Updater [ 27/Feb/22 ]

"Lai Siyao <lai.siyao@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/46642
Subject: ~~LU-15597~~ mdt: add LDLM_FL_SAVED flag to avoid extra commit
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 8ef84a8aa28ffeef89c092a15758e41b7e5c0a9d

Comment by Lai Siyao [ 02/Aug/23 ]

This is not needed after LU-17003.

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[LU-15597] add an LDLM flag to mark lock is saved to avoid extra commit Created: 27/Feb/22 Updated: 02/Aug/23 Resolved: 02/Aug/23