[LU-9129] deadlock in direct IO Created: 15/Feb/17  Updated: 30/Mar/17  Resolved: 30/Mar/17

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.10.0

Type: Bug Priority: Minor
Reporter: Jinshan Xiong (Inactive) Assignee: Jinshan Xiong (Inactive)
Resolution: Fixed Votes: 0
Labels: None

Severity: 3
Rank (Obsolete): 9223372036854775807

 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   
Comment by Gerrit Updater [ 15/Feb/17 ]

Jinshan Xiong (jinshan.xiong@intel.com) 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

Comment by Gerrit Updater [ 30/Mar/17 ]

Oleg Drokin (oleg.drokin@intel.com) 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

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