[LU-12542] LDLM improvements form linux lustre client work

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Assignee: James A Simmons
• Reporter: James A Simmons

Description

While working on the ldlm interval work a few issues were pointed out. For example it was discussed how the ldlm_lock is to large so it consumes a lot of memory. This ticket tracks the various improvement being worked that is coming from the upstream work.

Issue Links

• is related to: LU-12511 Prepare lustre for adoption into the linux kernel
• is related to: LU-4801 spin lock contention in lock_res_and_lock

Comments

[Gerrit Updater]

James Simmons ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35861
Subject: LU-12542 handle: remove locking from class_handle2object()
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 753e87301fcd6a307d0cb3cdeea7efa12e67add2

[Gerrit Updater]

James Simmons ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35798
Subject: LU-12542 handle: rename ops to owner
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: caa63e38331c97cadac46f1c3de42283f4ccaa2c

[Gerrit Updater]

James Simmons ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35797
Subject: LU-12542 handle: discard OBD_FREE_RCU
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 1890fff3bc5e67d04dee7ed4c88a05a8010620d6

[James A Simmons]

time for next batch

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35739/
Subject: LU-12542 handles: discard h_owner in favour of h_ops
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 9bda0a5cad190f33571ff6bce4235cd7fc4f76fd

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35738/
Subject: LU-12542 obdclass: Remove unused function class_handle_hash_back()
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: f36a5491d0bf4d861dc3332a600fca5a450afcb6

[Gerrit Updater]

James Simmons ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35739
Subject: LU-12542 handles: discard h_owner in favour of h_ops
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 5fd3524d40dac9c1166be75c9fd3687c87ea02a5

[Gerrit Updater]

James Simmons ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35738
Subject: LU-12542 obdclass: Remove unused function class_handle_hash_back()
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 02bf0f8869d2b419645cefee67cf7a1a124682d9

[James A Simmons]

Theirs much more

[Peter Jones]

Landed for 2.13

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35486/
Subject: LU-12542 ldlm: simplify lock_mode_to_index()
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 32ae82e57cf8dfcd4361e9522ea57e473676a743