[LU-9778] ll_read_ahead_pages no longer returns count of pages Created: 14/Jul/17  Updated: 07/Aug/17  Resolved: 01/Aug/17

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.10.1, Lustre 2.11.0

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

Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

Patch:
LU-7990 clio: revise readahead to support 16MB IO

The major work is to adjust read ahead policy to issue
read ahead RPC by underlying RPC size

Test case is backport from Andrew Perepechko's
"LU-7140 llite: too few 4 MiB RPCs from readahead"
http://review.whamcloud.com/16374

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: Gu Zheng <gzheng@ddn.com>
Change-Id: Ib25ff37712389cca7fcee86996124e7c9dd4ec9a
Reviewed-on: http://review.whamcloud.com/19368

Removed 'count' from ll_read_ahead_pages, meaning it no longer returns the # of pages read. Several debug statements still try to print out # of pages read ahead, but can't.



 Comments   
Comment by Gerrit Updater [ 14/Jul/17 ]

Patrick Farrell (paf@cray.com) uploaded a new patch: https://review.whamcloud.com/28052
Subject: LU-9778 llite: Read ahead should return pages read
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 97c1d98a33a94084b35217c4f621169ea9675be5

Comment by Gerrit Updater [ 01/Aug/17 ]

Oleg Drokin (oleg.drokin@intel.com) merged in patch https://review.whamcloud.com/28052/
Subject: LU-9778 llite: Read ahead should return pages read
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 805118241598df27c7617eff4cb9d8229bc8d2ba

Comment by Peter Jones [ 01/Aug/17 ]

Landed for 2.11

Comment by Gerrit Updater [ 02/Aug/17 ]

Minh Diep (minh.diep@intel.com) uploaded a new patch: https://review.whamcloud.com/28316
Subject: LU-9778 llite: Read ahead should return pages read
Project: fs/lustre-release
Branch: b2_10
Current Patch Set: 1
Commit: b536662278d5799cf21202aed4798ef098d11c4f

Comment by Gerrit Updater [ 07/Aug/17 ]

John L. Hammond (john.hammond@intel.com) merged in patch https://review.whamcloud.com/28316/
Subject: LU-9778 llite: Read ahead should return pages read
Project: fs/lustre-release
Branch: b2_10
Current Patch Set:
Commit: 548787df0a7e577b38d9387430733ff4bcb0e2c2

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