[LU-11617] lockdep exposed a possible deadlock in chlg_open()

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.13.0, Lustre 2.12.3
• Affects Version/s: Lustre 2.11.0, Lustre 2.12.0, Lustre 2.10.5
• Severity: 3
• Assignee: James A Simmons
• Reporter: James A Simmons

Description

While testing the changelog char device landing in the linux client Neil saw lockdep report a potential deadlock between chlg_open() and mdc_changelog_cdev_init().

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/36230/
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 4272c18f2a0a54f919f4ee2ed89fe74ea08b09d9

[Gerrit Updater]

James Simmons ([e-mail]) uploaded a new patch: https://review.whamcloud.com/36230
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: cb920d76d35201a57e114d9fa063e4798f6da07f

[Peter Jones]

Landed for 2.13

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/33572/
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 206b21741b07a10269bbcfdac28743591b64ab2f

[Gerrit Updater]

James Simmons ([e-mail]) uploaded a new patch: https://review.whamcloud.com/33572
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 0957d95edb454ecffa19dfa2c508a923919ccb87