[LU-9129] deadlock in direct IO

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.10.0
• Severity: 3
• Assignee: Jinshan Xiong (Inactive)
• Reporter: Jinshan Xiong (Inactive)

Description

ll_writepages() should ignore layout change otherwise it would cause deadlock in direct IO. This is because ll_writepages() would be called inside the direct IO context and if the layout has been changed during this time, the layout_conf() has to wait for active IO to complete before applying the layout change.

Patch is coming soon.

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/25474/
Subject: LU-9129 llite: ignore layout for ll_writepages()
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 5236673a906aecc91993fbbf97adaf7a1feecd2b

[Gerrit Updater]

Jinshan Xiong ([e-mail]) uploaded a new patch: https://review.whamcloud.com/25474
Subject: LU-9129 llite: ignore layout for ll_writepages()
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: cb18675a005842cbe0156316f0be646acd6fb7b5