[LU-13697] short io for AIO

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Severity: 3
• Assignee: Wang Shilong (Inactive)
• Reporter: Wang Shilong (Inactive)

Description

It might be possible that one aio request could not be finished
with one IO loop because of io request across stripes.

Since -EIOCBQUEUED is returned for AIO, io loop will be stopped thus short io happen.
There should be codes to handle these kind of cases, otherwise, fio or some other
applications could fail.

Issue Links

• is related to: LU-4198 Improve IO performance when using DIRECT IO using libaio

Comments

[Peter Jones]

Landed for 2.14

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39104/
Subject: LU-13697 llite: fix short io for AIO
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 84c3e85ced2dd1d650bc7111d4a3dec06b911b33

[Gerrit Updater]

Wang Shilong ([e-mail]) uploaded a new patch: https://review.whamcloud.com/39104
Subject: LU-13697 llite: fix short io for AIO
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: b924ffbe1c611588da726141a3d2f23b7e9f9336