[LU-16107] WBC: discard the cached subtrees under WBC when the client is evicted

• Type: Technical task
• Resolution: Unresolved
• Priority: Minor
• Assignee: Qian Yingjin
• Reporter: Qian Yingjin

Description

When a client is evicted by a server, it will cancel all locks cached on the client lock namespace and all cached data will be discarded.

In the original implementation, the client will flush the subtree level by level when the root WBC EX lock protected it is revoking.

Instead, during the client eviction, when cancel a WBC EX lock (in the lock blocking callback), the client will discard the whole subtree protected this lock if the import of this lock is in EVICTED state.

Comments

[Gerrit Updater]

"Qian Yingjin <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/48706
Subject: LU-16107 wbc: close() after client eviction under WBC
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 8349093658046bb370d5bb59b54bb32be51c7db8

[Qian Yingjin]

"Yingjin Qian <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/48436
Subject: LU-16107 wbc: more tests about cache evicting under WBC 
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 7247aa1451c252c30db50b682622b91c72a6d21f

[Gerrit Updater]

"Yingjin Qian <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/48347
Subject: LU-16107 wbc: discard caches when the client is evicted
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 7247aa1451c252c30db50b682622b91c72a6d21f