[LU-13577] WBC: implement mkdir() by using intent lock

• Status: Open
• Project: Lustre
• Type: Technical task
• Priority: Minor
• Reporter: Qian Yingjin
• Assignee: Qian Yingjin
• Resolution: Unresolved

Description

WBC basic framework patch is failed the sanity with DNE environment even without WBC feature enabled. To make the basic WBC patches to pass the sanity testing, this ticket is created to separate the new mkdir implementation by using intent lock from WBC.

Comments

[Gerrit Updater]

Yingjin Qian ([e-mail]) uploaded a new patch: https://review.whamcloud.com/38647
Subject: LU-13577 wbc: reimplement mkdir() by using intent lock
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 96cfe328988d2ad70e15c203a66b77c483040629

[Qian Yingjin]

The following is Siyao's comment about the patch:
Implementing mkdir() by using intent lock is basically wrong: mkdir is a reint operation, if it is done in the way using intent lock, it can not guarantee recovery works. If using intent lock, during recovery it will just replay the lock, will not replay to re-execute the mkdir request...

Hi Andreas,
Could you please comment on it?

Thanks,
Qian

[Gerrit Updater]

Yingjin Qian ([e-mail]) uploaded a new patch: https://review.whamcloud.com/40529
Subject: LU-13577 wbc: commit update accroding to lock transno
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: db79a18ec24618454150d181d39e9a2c1abf9dfa