[LU-14003] PCC: rework PCC mmap Created: 30/Sep/20  Updated: 25/Mar/21

Status: Open
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Minor
Reporter: Qian Yingjin Assignee: Qian Yingjin
Resolution: Unresolved Votes: 0
Labels: None

Issue Links:
Blocker
Related
is related to LU-14346 sanity-pcc test 7a hangs in multiop/d... In Progress
Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

There are some design problem in current PCC mmap design.
i.e. It failed LU-13137 and sanity-pcc test4.

This ticket is created to track the reimplementation for PCC mmap().

 Comments   
Comment by Gerrit Updater [ 30/Sep/20 ]

Yingjin Qian (qian@ddn.com) uploaded a new patch: https://review.whamcloud.com/40092
Subject: LU-14003 pcc: reimplement PCC mmap
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 6ccfbcd3b4b7d1c9d7d49f4f30af5e4d039f2990

Comment by Gerrit Updater [ 22/Oct/20 ]

Yingjin Qian (qian@ddn.com) uploaded a new patch: https://review.whamcloud.com/40344
Subject: LU-14003 pcc: convert mapping pagecache for mmap
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 3bc11eb0839cfc579a28ad696f31344acf5bc5e7

Comment by Gerrit Updater [ 18/Nov/20 ]

Yingjin Qian (qian@ddn.com) uploaded a new patch: https://review.whamcloud.com/40682
Subject: LU-14003 pcc: wait on page writeback when mmap pages convert
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: f5f4f9adc7dfdf33737f78cdd6ac21c0dca198e3

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