[LU-13437] rename may miss revoking LOOKUP lock to cause stale dentry on client

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0, Lustre 2.12.6
• Affects Version/s: Lustre 2.10.0, Lustre 2.12.0, Lustre 2.13.0
• Labels: LTS12
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Lai Siyao

Description

In rename, all objects involved but target may be remote, i.e. source, source parent, target parent may be remote object, herein to know whether source is a remote object on source parent, we need to compare which MDT they are located.

In mdt_getattr_name_lock(), if name is NULL, the LOOKUP lock can't be returned to client, because this object may be a remote object under its parent, and the remote LOOKUP lock is on the MDT where its parent is located.

Issue Links

• is related to: LU-14172 DIR Stat performance regression in striped dir

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/40482/
Subject: LU-13437 llite: pass name in getattr by FID
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 18578808ff0fc19f16a654f2afb2dc4c70872ef6

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/40451/
Subject: LU-13437 mdc: remote object support getattr from cache
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 23c05e821da13c6942453be1c9e167c5cafc40e7

[Gerrit Updater]

Lai Siyao ([e-mail]) uploaded a new patch: https://review.whamcloud.com/40482
Subject: LU-13437 llite: pass name in getattr by FID
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 33d5f5ac03e402bc9c5db322f5eacf69877d7b23

[Gerrit Updater]

Minh Diep ([e-mail]) uploaded a new patch: https://review.whamcloud.com/40451
Subject: LU-13437 mdc: remote object support getattr from cache
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 8138f2f0c3ff43a3a638d83665da3aa83ab0c714

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/40219/
Subject: LU-13437 llite: pass name in getattr by FID
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 90ebab5833007defd91e86f5878f356ae5304a1b

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/40218/
Subject: LU-13437 mdc: remote object support getattr from cache
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 72a1ca996e3a35ce3e4b7e517f77ff7ac83ccdd5

[Gerrit Updater]

Lai Siyao ([e-mail]) uploaded a new patch: https://review.whamcloud.com/40219
Subject: LU-13437 llite: pass name in getattr by FID
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: c4d8d35312a6918444d0e56b1fcf38274e1a05ef

[Gerrit Updater]

Lai Siyao ([e-mail]) uploaded a new patch: https://review.whamcloud.com/40218
Subject: LU-13437 mdc: no LOOKUP in IT_GETATTR lock match
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 1f7ffb917a6579256da2be1eb8a2e69258b35f45

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39771/
Subject: LU-13437 llite: pack parent FID in getattr
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 3314727b4d2cb98d4930c0499f75231a95bf4b06

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39770/
Subject: LU-13437 uapi: add OBD_CONNECT2_GETATTR_PFID
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: daa9148294c4e4fb3242c1b4b0a7f28e99ecef51