[LU-11852] osc cache waiters wakeups and skipping queue Created: 11/Jan/19  Updated: 25/Nov/19  Resolved: 23/Jan/19

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.13.0

Type: Improvement Priority: Major
Reporter: Alexander Boyko Assignee: Alexander Boyko
Resolution: Fixed Votes: 0
Labels: patch

Rank (Obsolete): 9223372036854775807

 Description   

No need to wakeup osc_entry_cache waiters with EDQUOT or insufficent
grants, cause they will sleep again.
osc_enter_cache could skip queue of waiters if client has enough
grants, and this leads to new IO happen before an old IO.

 Comments   
Comment by Gerrit Updater [ 11/Jan/19 ]

Alexandr Boyko (c17825@cray.com) uploaded a new patch: https://review.whamcloud.com/34013
Subject: LU-11852 osc: skip cache entry wakeup without grants
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 2e4154d7184bbb72b8228a6241ffa4f2383640c1

Comment by Gerrit Updater [ 23/Jan/19 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/34013/
Subject: LU-11852 osc: skip cache entry wakeup without grants
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 34a5af721b2b5a2faae98050dec38767bb89a579

Comment by Peter Jones [ 23/Jan/19 ]

Landed for 2.13

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