[LU-3285] Data on MDT

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.7.0
• Fix Version/s: Lustre 2.11.0
• Type: New Feature
• Priority: Major
• Reporter: Mikhail Pershin
• Assignee: Mikhail Pershin
• Resolution: Fixed

Description

Change MDS and client stacks to handle both meta and data requests. This makes MDS to be able to store data of file along with metadata.

Issue Links

• is related to: LU-10176 Data-on-MDT phase II
• is related to: LUDOC-385 Data on MDT Documentation
• is related to: LU-5319 Support multiple slots per client in ...
• is related to: LU-10496 sanity-dom sanity test_39k: FAIL: mti...
• is related to: LU-11558 t32_verify_quota() not being called b...
• is related to: LU-14808 yaml support for DOM file
• is related to: LU-10498 sanity-dom test_fsx: FAIL: test_fsx f...
• is related to: LU-10178 DoM: Use synced last BRW instead of e...
• is related to: LU-10280 DoM cross-file open+readahead via sta...
• is related to: LU-10177 DoM: manual migration MDT-OST
• is related to: LU-10181 DoM performance optimization
• is related to: LU-11421 DoM: manual migration OST-MDT, MDT-MDT
• is related to: LU-10175 DoM:Full support for the LDLM lock co...
• is related to: LU-10180 DoM technical debts
• is related to: LU-10179 DoM: Data-on-MDT recovery cases
• is related to: LU-1757 Short I/O support
• is related to: LU-12196 mkfs.lustre should handle large MDTs ...

Comments

[Andreas Dilger]

This feature needs to have an OBD_CONNECT flag to indicate that the client and server support it. One option is to use the OBD_CONNECT_REQPORTAL feature on the MDS connection, since that was used in the past to add a separate IO portal on the OSS.

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/22996
Subject: LU-3285 osc: prepare OSC code to be used from MDC
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 98e7be6e8de4d0609c89c56059cdcefba89d2734

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23009
Subject: LU-3285 mds: optimize locking for Data-on-MDT files
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 1105626cd883327f31aea057ada40916d9bbcdec

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23010
Subject: LU-3285 ldlm: IBITS lock convert instead of cancel
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 419c81501b4d37fa78810707b3ddea85fe388088

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23005
Subject: LU-3285 dlm: add DLM locking for Data-on-mdt files
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 185aac31e6e83393973e7bd8591ade9ea1742775

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23011
Subject: LU-3285 mdt: read on open for DoM files
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: e9a2ba6ca7f11ecf8c02a2a6ca9369fc74acd834

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23006
Subject: LU-3285 mdc: add IO stats in mdc
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: e3a33d2cc4aced92113d00ce61c2c10a5162f7e6

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23008
Subject: LU-3285 mdc: glimpse optimization for DoM files
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: bc38cf26c6d04d8104b50f1f7c5126bacbaa71e1

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23007
Subject: LU-3285 test: add Data-on-MDT tests
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 2d592b3fbe16231a7ab398e54d6830dcce9ca2a0

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/22998
Subject: LU-3285 lov: add MDT target to the LOV device
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 5b4e863e412c9607473171200e3c237a3098ac04

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/22999
Subject: LU-3285 lod: add support for DOM
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 8a1136eb297217bf536c88a70db1bf2b466243e1

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23000
Subject: LU-3285 lfs: add parameter for Data-on-MDT file
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: b8874fd33330eab75da0b52d1d566b6c68080eb3

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23001
Subject: LU-3285 mdt: IO request handling in MDT
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 61de24a617d612d830edb386ca4511bac7af3636

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23002
Subject: LU-3285 osc: common client setup/cleanup
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 6b8cc7230528bc21008193446cdf1ea154a78f0a

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23003
Subject: LU-3285 mdc: add IO methods to the MDC
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 74021fca3a95202fced223dc211675aaedfa4cdc

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23004
Subject: LU-3285 mdt: changes in ldlm locking for Data-on-MDT
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: c13fc5c24049ea138bf1dd32ca66b150b603b5a4

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: http://review.whamcloud.com/23924
Subject: LU-3285 test: add mdtest for DoM benchmarks
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 4d9c4a950f05ab18bd0fd680bb5dffaac8c228b9

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/24132
Subject: LU-3285 test: debugging patch, just for tests
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 544ec54c09b0511828e34af66304097149469ed3

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/24199
Subject: LU-3285 grants: move grant code to the target
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: fa4bf5d6ec0c038f9e208865306156c1c087a1ce

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/24296
Subject: LU-3285 mdt: use generic grant code at MDT
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 92c1b2ca7b685bf5005be8f807c2e1ef6ed8a9e9

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/24511
Subject: LU-3285 lvbo: pass lock as parameter to lvbo_update()
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 826642e8a93a240e91d6c6d794b34945e9d0f487

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/24770
Subject: LU-3285 osd: use 4K blocksize for MDT files on ZFS
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: c9de0186aa6c3d3f24a30844c3a9527cb2f26fbf

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/27808
Subject: LU-3285 mds: combine DoM bit with other IBITS
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 86cafce972ad4b0629305264aa9ab08b8926d56f

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28008
Subject: LU-3285 osc: prepare OSC code to be used from MDC
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: f64ae3484f5ea9ef5d2668bce8a27cf19cf9ebf3

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28016
Subject: LU-3285 lvbo: pass lock as parameter to lvbo_update()
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 2a2a37f3eeca49515e482b4d90ab61245612aafc

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28020
Subject: LU-3285 test: add Data-on-MDT tests
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 6956e39ecf23e1c7f4bba371b25d0fc6369b7498

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28019
Subject: LU-3285 mdc: add IO stats in mdc
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 06de6c83518e1f3a3a9def9eedd3aeb0f34ea185

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28018
Subject: LU-3285 dlm: add DLM locking for Data-on-mdt files
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: bfc7a3ebb424ead796093857392b84f28304bc80

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28021
Subject: LU-3285 mdt: use generic grant code at MDT
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 83f24a8fe8a3d03264d22dd301e6eaf5d7ab7ef4

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28011
Subject: LU-3285 lod: add support for DOM
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: f444aef31a8c7ff96733242630a83776376ab3f8

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28010
Subject: LU-3285 lov: add MDT target to the LOV device
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 4f4797d3220475a8c656b71fafbfe2f33194f0e5

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28012
Subject: LU-3285 lfs: add parameter for Data-on-MDT file
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 007962de7ad75df20219a5d37f4c3e14c71a67b5

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28024
Subject: LU-3285 mds: combine DoM bit with other IBITS
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 3b2684b1eb65ece3edd5e4d8f92532085b6a6dcf

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28013
Subject: LU-3285 mdt: IO request handling in MDT
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 5f7ff636473037775526b82b35edee19239c47df

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28014
Subject: LU-3285 osc: common client setup/cleanup
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: ec15b0ebcb3b9f813f989935b7198d9d6ec3febc

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28015
Subject: LU-3285 mdc: add IO methods to the MDC
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 5ae8ed7eb42b5e51f369da49016089641aec421c

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28017
Subject: LU-3285 mdt: changes in ldlm locking for Data-on-MDT
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: c05df865b203f4860a3fbe781d37374973f3f501

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/22996/
Subject: LU-3285 osc: prepare OSC code to be used from MDC
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 036d987c6d716d2e3d8f5a12800b44f3cd01bb9c

[Gerrit Updater]

Minh Diep ([e-mail]) merged in patch https://review-stage.hpdd.intel.com/28008/
Subject: LU-3285 osc: prepare OSC code to be used from MDC
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: f64ae3484f5ea9ef5d2668bce8a27cf19cf9ebf3

[Gerrit Updater]

Minh Diep ([e-mail]) merged in patch https://review-stage.hpdd.intel.com/28008/
Subject: LU-3285 osc: prepare OSC code to be used from MDC
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 217a7d99ec24b681510237afa58e3e8bdc617675

[Gerrit Updater]

Minh Diep ([e-mail]) merged in patch https://review-stage.hpdd.intel.com/28012/
Subject: LU-3285 lfs: add parameter for Data-on-MDT file
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: cc7a82d6d5439ae7378f8bd04a068cf3badf45b0

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/28429
Subject: LU-3285 ldlm: IBITS lock convert instead of cancel
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 56670615d8c5cc38bdf7eefe7022e3f06b3d242f

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28009/
Subject: LU-3285 mdc: add cl_device to the MDC
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 68ff85b8858e845eee1ca9d6d2ba639cdc2fb470

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29374
Subject: LU-3285 mgs: configure MDC targets in LOV
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 8fb5bbbf33861764bb61003773aa95397127a337

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28010/
Subject: LU-3285 lov: add MDT target to the LOV device
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 8b352709a66f9079cadeda2e9af3834941ced969

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28011/
Subject: LU-3285 lod: add support for DOM
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 4508ed1c2a42d6ca4e4c1efddd5a93c2056333a6

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29646
Subject: LU-3285 tests: add dom into racer test suite
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 8d32ad09ecb6cb52687b64be4857576fd9af3199

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28012/
Subject: LU-3285 lfs: add parameter for Data-on-MDT file
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 6744eb8eeb9e0a7a745a9a42e5fe09b376e16a82

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28013/
Subject: LU-3285 mdt: IO request handling in MDT
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 2bcc5ad0ed6a440e15233b454191e7f66fcb1921

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28014/
Subject: LU-3285 osc: common client setup/cleanup
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: a1bd0f62ee08dcb97aae0e2221ebc85cd345e899

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28015/
Subject: LU-3285 mdc: add IO methods to the MDC
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 59bd024b7117243725785edb8e1930b174b03ffa

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28016/
Subject: LU-3285 lvbo: pass lock as parameter to lvbo_update()
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 978428ed047602a311f016fe7f4cf7d21f5599b6

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28018/
Subject: LU-3285 mds: add IO locking to the MDC and MDT
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 4f35c341f22b06b6c15a4af763e49b1e05f0dff9

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28019/
Subject: LU-3285 mdc: add IO stats in mdc
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 2f103489f6148d7fc12425dc9d0e3b0c5f8e9055

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28020/
Subject: LU-3285 test: add Data-on-MDT tests and fixes
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: a7625cd2f37ac569ccede4ebfc6fcfc1151fbe6c

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28021/
Subject: LU-3285 mdt: use generic grant code at MDT
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 0697cf73c74d92bb89e89b188a6793fb28eb0e8c

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29681
Subject: LU-3285 tests: style fixes in DoM tests
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: b618036327bd92d7dcf08c96da01d267b6b977b9

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/28024/
Subject: LU-3285 mds: combine DoM bit with other IBITS
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 238a309ea6081163c1928630414ee9767746beaa

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/29631/
Subject: LU-3285 tests: add dom into racer test suite
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 0b66b11523cb3f8e7852dfc71ec3ed5cc64c7020

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29706
Subject: LU-3285 mdt: Merge branch 'dom' into master
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 46866d6e4eb9cd4ae0c83f408795e37b17048f2d

[Oleg Drokin]

I plugged the whoel dom branch (but without dom-specific tests as far as I can see) into my testrig and I am seeing a bunch of failures like below.
This is happening on current master-next that has some other patches too, so we cannot rule out other interference I guess. But still wanted to post it here.

[18585.634896] Lustre: DEBUG MARKER: == sanity test 184c: Concurrent write and layout swap ================================================ 07:36:36 (1508585796)
[18623.293063] LustreError: 22846:0:(osc_object.c:208:osc_object_ast_clear()) ASSERTION( lock->l_granted_mode == lock->l_req_mode ) failed: 
[18623.295240] LustreError: 22846:0:(osc_object.c:208:osc_object_ast_clear()) LBUG
[18623.300072] Pid: 22846, comm: lfs
[18623.300853] 
Call Trace:
[18623.302374]  [<ffffffffa02237fe>] libcfs_call_trace+0x4e/0x60 [libcfs]
[18623.303861]  [<ffffffffa022388c>] lbug_with_loc+0x4c/0xb0 [libcfs]
[18623.304708]  [<ffffffffa07e90c2>] osc_object_ast_clear+0x1b2/0x1c0 [osc]
[18623.305473]  [<ffffffffa07e8f10>] ? osc_object_ast_clear+0x0/0x1c0 [osc]
[18623.306356]  [<ffffffffa05e4b03>] ldlm_resource_foreach+0x273/0x2d0 [ptlrpc]
[18623.307284]  [<ffffffffa07e8f10>] ? osc_object_ast_clear+0x0/0x1c0 [osc]
[18623.317409]  [<ffffffffa05e4c06>] ldlm_resource_iterate+0x66/0x180 [ptlrpc]
[18623.320236]  [<ffffffffa07e8efa>] osc_object_prune+0x5a/0x70 [osc]
[18623.323219]  [<ffffffffa03a7885>] cl_object_prune+0x55/0x110 [obdclass]
[18623.326078]  [<ffffffffa0904a27>] lov_delete_composite+0x197/0x580 [lov]
[18623.328983]  [<ffffffff81182615>] ? truncate_inode_pages+0x15/0x20
[18623.332003]  [<ffffffffa1613ce9>] ? vvp_prune+0x79/0x1f0 [lustre]
[18623.333775]  [<ffffffffa0905edb>] lov_conf_set+0x6cb/0xac0 [lov]
[18623.337770]  [<ffffffffa15c0001>] ? ll_file_flock+0x841/0xd80 [lustre]
[18623.340653]  [<ffffffffa03a79a0>] cl_conf_set+0x60/0x120 [obdclass]
[18623.341361]  [<ffffffffa15cd841>] ll_layout_conf+0x81/0x410 [lustre]
[18623.349948]  [<ffffffffa15ce18d>] ll_layout_refresh+0x5bd/0xb10 [lustre]
[18623.350739]  [<ffffffffa1613407>] vvp_io_init+0x347/0x440 [lustre]
[18623.351590]  [<ffffffffa03af4a8>] cl_io_init0.isra.17+0x88/0x160 [obdclass]
[18623.352320]  [<ffffffffa03af63a>] cl_io_init+0x3a/0x80 [obdclass]
[18623.353083]  [<ffffffffa160a18c>] cl_setattr_ost+0x12c/0x3a0 [lustre]
[18623.353840]  [<ffffffffa15e3a24>] ll_setattr_raw+0x12d4/0x1360 [lustre]
[18623.354632]  [<ffffffffa15e3b1c>] ll_setattr+0x6c/0xd0 [lustre]
[18623.355361]  [<ffffffff8120bb39>] notify_change+0x279/0x3d0
[18623.356037]  [<ffffffff8122107b>] utimes_common+0xdb/0x200
[18623.356735]  [<ffffffff812212de>] do_utimes+0x13e/0x180
[18623.357495]  [<ffffffff8122144f>] SyS_utimensat+0x6f/0xc0
[18623.358205]  [<ffffffff8170fc49>] system_call_fastpath+0x16/0x1b
[18623.358907] 
[18623.359659] Kernel panic - not syncing: LBUG
[18623.360320] CPU: 0 PID: 22846 Comm: lfs Tainted: P           OE  ------------   3.10.0-debug #2
[18623.362937] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[18623.363661]  ffffffffa0265c82 00000000fd02a639 ffff880293193800 ffffffff816fd3e4
[18623.364970]  ffff880293193880 ffffffff816f8c34 ffffffff00000008 ffff880293193890
[18623.366299]  ffff880293193830 00000000fd02a639 00000000fd02a639 ffff88033e40d948
[18623.367654] Call Trace:
[18623.368246]  [<ffffffff816fd3e4>] dump_stack+0x19/0x1b
[18623.368910]  [<ffffffff816f8c34>] panic+0xd8/0x1e7
[18623.369586]  [<ffffffffa02238a4>] lbug_with_loc+0x64/0xb0 [libcfs]
[18623.370294]  [<ffffffffa07e90c2>] osc_object_ast_clear+0x1b2/0x1c0 [osc]
[18623.370990]  [<ffffffffa07e8f10>] ? osc_object_prune+0x70/0x70 [osc]
[18623.371744]  [<ffffffffa05e4b03>] ldlm_resource_foreach+0x273/0x2d0 [ptlrpc]
[18623.372455]  [<ffffffffa07e8f10>] ? osc_object_prune+0x70/0x70 [osc]
[18623.373159]  [<ffffffffa05e4c06>] ldlm_resource_iterate+0x66/0x180 [ptlrpc]
[18623.373875]  [<ffffffffa07e8efa>] osc_object_prune+0x5a/0x70 [osc]
[18623.374605]  [<ffffffffa03a7885>] cl_object_prune+0x55/0x110 [obdclass]
[18623.375318]  [<ffffffffa0904a27>] lov_delete_composite+0x197/0x580 [lov]
[18623.376006]  [<ffffffff81182615>] ? truncate_inode_pages+0x15/0x20
[18623.376720]  [<ffffffffa1613ce9>] ? vvp_prune+0x79/0x1f0 [lustre]
[18623.377409]  [<ffffffffa0905edb>] lov_conf_set+0x6cb/0xac0 [lov]
[18623.378085]  [<ffffffffa15c0001>] ? ll_file_flock+0x841/0xd80 [lustre]
[18623.378841]  [<ffffffffa03a79a0>] cl_conf_set+0x60/0x120 [obdclass]
[18623.379537]  [<ffffffffa15cd841>] ll_layout_conf+0x81/0x410 [lustre]
[18623.380223]  [<ffffffffa15ce18d>] ll_layout_refresh+0x5bd/0xb10 [lustre]
[18623.380978]  [<ffffffffa1613407>] vvp_io_init+0x347/0x440 [lustre]
[18623.381710]  [<ffffffffa03af4a8>] cl_io_init0.isra.17+0x88/0x160 [obdclass]
[18623.382705]  [<ffffffffa03af63a>] cl_io_init+0x3a/0x80 [obdclass]
[18623.383479]  [<ffffffffa160a18c>] cl_setattr_ost+0x12c/0x3a0 [lustre]
[18623.383966]  [<ffffffffa15e3a24>] ll_setattr_raw+0x12d4/0x1360 [lustre]
[18623.384531]  [<ffffffffa15e3b1c>] ll_setattr+0x6c/0xd0 [lustre]
[18623.385014]  [<ffffffff8120bb39>] notify_change+0x279/0x3d0
[18623.385483]  [<ffffffff8122107b>] utimes_common+0xdb/0x200
[18623.385934]  [<ffffffff812212de>] do_utimes+0x13e/0x180
[18623.386444]  [<ffffffff8122144f>] SyS_utimensat+0x6f/0xc0
[18623.387263]  [<ffffffff8170fc49>] system_call_fastpath+0x16/0x1b

[Mikhail Pershin]

Fixed in the latest patch. This assertion was taken back from past accidentally

[Oleg Drokin]

With racer fixes added I see a bunch of this:

[15138.561905] LustreError: 3485:0:(osc_cache.c:3053:osc_cache_writeback_range()) extent ffff880028efff18@{[0 -> 4/255], [1|0|-|cache|wiY|ffff880065776de0], [45056|5|+|-|ffff88004494cd00|256|          (null)]} 
[15138.563935] LustreError: 3485:0:(osc_cache.c:3053:osc_cache_writeback_range()) ### extent: ffff880028efff18 ns: lustre-MDT0000-mdc-ffff88006d3d1800 lock: ffff88004494cd00/0xaf26e9486c3a188b lrc: 4/0,0 mode: PW/PW res: [0x200000401:0x2501:0x0].0x0 bits 0x40/0x0 rrc: 2 type: IBT flags: 0x409400010000 nid: local remote: 0xaf26e9486c3a18a7 expref: -99 pid: 15046 timeout: 0 lvb_type: 0
[15138.566816] LustreError: 3485:0:(osc_cache.c:1236:osc_extent_tree_dump0()) Dump object ffff880065776de0 extents at osc_cache_writeback_range:3053, mppr: 256.
[15138.567961] LustreError: 3485:0:(osc_cache.c:1241:osc_extent_tree_dump0()) extent ffff880028efff18@{[0 -> 4/255], [1|0|-|cache|wiY|ffff880065776de0], [45056|5|+|-|ffff88004494cd00|256|          (null)]} in tree 1.
[15138.570091] LustreError: 3485:0:(osc_cache.c:1241:osc_extent_tree_dump0()) ### extent: ffff880028efff18 ns: lustre-MDT0000-mdc-ffff88006d3d1800 lock: ffff88004494cd00/0xaf26e9486c3a188b lrc: 4/0,0 mode: PW/PW res: [0x200000401:0x2501:0x0].0x0 bits 0x40/0x0 rrc: 2 type: IBT flags: 0x409400010000 nid: local remote: 0xaf26e9486c3a18a7 expref: -99 pid: 15046 timeout: 0 lvb_type: 0
[15138.573017] LustreError: 3485:0:(osc_cache.c:3053:osc_cache_writeback_range()) ASSERTION( ext->oe_start >= start && ext->oe_max_end <= end ) failed: 
[15138.574266] LustreError: 3485:0:(osc_cache.c:3053:osc_cache_writeback_range()) LBUG
[15138.575330] Pid: 3485, comm: ldlm_bl_01
[15138.575873] 
Call Trace:
[15138.576876]  [<ffffffffa02567fe>] libcfs_call_trace+0x4e/0x60 [libcfs]
[15138.577510]  [<ffffffffa025688c>] lbug_with_loc+0x4c/0xb0 [libcfs]
[15138.578129]  [<ffffffffa0866d1d>] osc_cache_writeback_range+0xacd/0x1260 [osc]
[15138.579220]  [<ffffffffa0384400>] ? cl_io_submit_rw+0x150/0x170 [obdclass]
[15138.579818]  [<ffffffffa0857188>] osc_io_fsync_start+0x88/0x3c0 [osc]
[15138.587568]  [<ffffffffa0383f20>] ? cl_io_start+0x0/0x130 [obdclass]
[15138.588405]  [<ffffffffa0383f85>] cl_io_start+0x65/0x130 [obdclass]
[15138.589161]  [<ffffffffa08a6355>] lov_io_call.isra.4+0x85/0x140 [lov]
[15138.589913]  [<ffffffffa08a6516>] lov_io_start+0x56/0x150 [lov]
[15138.590488]  [<ffffffffa0383f85>] cl_io_start+0x65/0x130 [obdclass]
[15138.591343]  [<ffffffffa0386356>] cl_io_loop+0x136/0xb30 [obdclass]
[15138.592231]  [<ffffffffa0e3185b>] cl_sync_file_range+0x2db/0x380 [lustre]
[15138.593604]  [<ffffffffa0e58a1c>] ll_dom_lock_cancel+0x21c/0x380 [lustre]
[15138.594388]  [<ffffffffa0e58fab>] ll_md_blocking_ast+0x42b/0x820 [lustre]
[15138.595168]  [<ffffffff817063f7>] ? _raw_spin_unlock+0x27/0x40
[15138.595700]  [<ffffffffa055177d>] ldlm_cancel_callback+0x8d/0x2e0 [ptlrpc]
[15138.596611]  [<ffffffffa0568fb0>] ldlm_cli_cancel_local+0xa0/0x430 [ptlrpc]
[15138.597566]  [<ffffffffa056ed9b>] ldlm_cli_cancel+0xab/0x3d0 [ptlrpc]
[15138.598248]  [<ffffffffa0e58d8a>] ll_md_blocking_ast+0x20a/0x820 [lustre]
[15138.598964]  [<ffffffffa0263c07>] ? libcfs_debug_msg+0x57/0x80 [libcfs]
[15138.600414]  [<ffffffff817063f7>] ? _raw_spin_unlock+0x27/0x40
[15138.601139]  [<ffffffffa057a44f>] ldlm_handle_bl_callback+0xcf/0x410 [ptlrpc]
[15138.601835]  [<ffffffffa057ac91>] ldlm_bl_thread_main+0x501/0x680 [ptlrpc]
[15138.602451]  [<ffffffff810b7ce0>] ? default_wake_function+0x0/0x20
[15138.603552]  [<ffffffffa057a790>] ? ldlm_bl_thread_main+0x0/0x680 [ptlrpc]
[15138.604122]  [<ffffffff810a2eda>] kthread+0xea/0xf0
[15138.604666]  [<ffffffff810a2df0>] ? kthread+0x0/0xf0
[15138.605198]  [<ffffffff8170fbd8>] ret_from_fork+0x58/0x90
[15138.605750]  [<ffffffff810a2df0>] ? kthread+0x0/0xf0
[15138.606281] 
[15138.606833] Kernel panic - not syncing: LBUG
[15138.607356] CPU: 4 PID: 3485 Comm: ldlm_bl_01 Tainted: G           OE  ------------   3.10.0-debug #1
[15138.608395] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[15138.608931]  ffffffffa0298c82 00000000b20c5809 ffff88007689b788 ffffffff816fd400
[15138.609969]  ffff88007689b808 ffffffff816f8c74 ffffffff00000008 ffff88007689b818
[15138.611168]  ffff88007689b7b8 00000000b20c5809 00000000b20c5809 0000000000000001
[15138.612005] Call Trace:
[15138.612583]  [<ffffffff816fd400>] dump_stack+0x19/0x1b
[15138.613240]  [<ffffffff816f8c74>] panic+0xd8/0x1e7
[15138.613898]  [<ffffffffa02568a4>] lbug_with_loc+0x64/0xb0 [libcfs]
[15138.614562]  [<ffffffffa0866d1d>] osc_cache_writeback_range+0xacd/0x1260 [osc]
[15138.615605]  [<ffffffffa0384400>] ? cl_io_submit_rw+0x150/0x170 [obdclass]
[15138.616186]  [<ffffffffa0857188>] osc_io_fsync_start+0x88/0x3c0 [osc]
[15138.616794]  [<ffffffffa0383f20>] ? cl_req_attr_set+0x150/0x150 [obdclass]
[15138.617456]  [<ffffffffa0383f85>] cl_io_start+0x65/0x130 [obdclass]
[15138.627423]  [<ffffffffa08a6355>] lov_io_call.isra.4+0x85/0x140 [lov]
[15138.627815]  [<ffffffffa08a6516>] lov_io_start+0x56/0x150 [lov]
[15138.628220]  [<ffffffffa0383f85>] cl_io_start+0x65/0x130 [obdclass]
[15138.628625]  [<ffffffffa0386356>] cl_io_loop+0x136/0xb30 [obdclass]
[15138.629040]  [<ffffffffa0e3185b>] cl_sync_file_range+0x2db/0x380 [lustre]
[15138.629534]  [<ffffffffa0e58a1c>] ll_dom_lock_cancel+0x21c/0x380 [lustre]
[15138.629934]  [<ffffffffa0e58fab>] ll_md_blocking_ast+0x42b/0x820 [lustre]
[15138.630765]  [<ffffffff817063f7>] ? _raw_spin_unlock+0x27/0x40
[15138.631224]  [<ffffffffa055177d>] ldlm_cancel_callback+0x8d/0x2e0 [ptlrpc]
[15138.631657]  [<ffffffffa0568fb0>] ldlm_cli_cancel_local+0xa0/0x430 [ptlrpc]
[15138.632067]  [<ffffffffa056ed9b>] ldlm_cli_cancel+0xab/0x3d0 [ptlrpc]
[15138.632509]  [<ffffffffa0e58d8a>] ll_md_blocking_ast+0x20a/0x820 [lustre]
[15138.632924]  [<ffffffffa0263c07>] ? libcfs_debug_msg+0x57/0x80 [libcfs]
[15138.633330]  [<ffffffff817063f7>] ? _raw_spin_unlock+0x27/0x40
[15138.633749]  [<ffffffffa057a44f>] ldlm_handle_bl_callback+0xcf/0x410 [ptlrpc]
[15138.634191]  [<ffffffffa057ac91>] ldlm_bl_thread_main+0x501/0x680 [ptlrpc]
[15138.634591]  [<ffffffff810b7ce0>] ? wake_up_state+0x20/0x20
[15138.635011]  [<ffffffffa057a790>] ? ldlm_handle_bl_callback+0x410/0x410 [ptlrpc]
[15138.635727]  [<ffffffff810a2eda>] kthread+0xea/0xf0
[15138.636106]  [<ffffffff810a2df0>] ? kthread_create_on_node+0x140/0x140
[15138.636494]  [<ffffffff8170fbd8>] ret_from_fork+0x58/0x90
[15138.636871]  [<ffffffff810a2df0>] ? kthread_create_on_node+0x140/0x140

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29796
Subject: LU-3285 mdc: Data-on-MDT bugfixes
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 7e6fe918719f43641fe215dbdba6af01b231b78e

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29802
Subject: LU-3285 merge: Merge branch 'dom'
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 8a45fe91049260429197c37e3c3272b914a1d07e

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/29681/
Subject: LU-3285 tests: style fixes in DoM tests
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 236387bc0ddbb12dfe4d98e7201830fc522ea028

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29809
Subject: LU-3285 lfs: handle -L option alphabetically
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 5d4ef2e8cd602ffa43d65edb0b24be0c817dfaa0

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29810
Subject: LU-3285 llite: check layout size after cl_object_layout_get
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 7a6849970520badc5a5de222620cebfeeb29a207

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29811
Subject: LU-3285 osc: remove wrongly applied assertion.
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 3539db567e6cdd8450555d68d322c4583c62c515

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29812
Subject: LU-3285 lod: don't initialize OSP objects for DoM
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: dd0e3c01fb01fe9927652e5ecd9ae784b28351ed

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29813
Subject: LU-3285 mdc: implement own mdc_io_fsync_start()
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 391bd376970470e49277a266b8340fa0e3286d4d

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/29809/
Subject: LU-3285 lfs: handle -L option alphabetically
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 68d4aa397dcc71554aacd59a3d904ceaa09f3c68

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/29812/
Subject: LU-3285 lod: don't initialize OSP objects for DoM
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: aeaa120d0d460ecce81a6d5d37ae0dc13936f590

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/29810/
Subject: LU-3285 llite: check layout size after cl_object_layout_get
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 877669a282efe8fea173b59723d121c25f91ee7b

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/29811/
Subject: LU-3285 osc: remove wrongly applied assertion.
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 138b3eee3b61e06b34999c599d388f5e6e0effed

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/29813/
Subject: LU-3285 mdc: implement own mdc_io_fsync_start()
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 1d2e9f42027ca0de07bbaf46a7c1f6866935f1a5

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29851
Subject: LU-3285 dom: Data-on-MDT branch merge commit
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 0c6439dfd5ebf3e1698b93eb0b7c04e562aaf1f6

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29930
Subject: LU-3285 mdt: take discard lock at cleanup stage
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 8c6aecc34f580368851897b0877b45058c7bcb74

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29968
Subject: LU-3285 mdt: high-priority request handling for DOM
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 2be47650a7cb3b762d6153ae2bbe1fc5a07d7e72

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29983
Subject: LU-3285 tests: disable DOM files in racer by default
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 49e9fa3d80482f2601486245ee537333b93da5b8

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30004
Subject: LU-3285 mdt: use max_mdsize in reply for layout intent
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: dd588e593fdca37fc2ab6d62b96e07b2603efabd

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30016
Subject: LU-3285 tests: clear client stats right before unlink
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: d5dcdf36ee14efcfdc50d8d1711d6581035e5c62

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30020
Subject: LU-3285 tests: disable DOM files in racer by default
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: dedddfe975d7de644d290e14f025efed96a07722

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30021
Subject: LU-3285 mdc: remove wrong assertion from mdc_object_ast_clear
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 2428df03b685078619620e47d582bd586367df89

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30024
Subject: LU-3285 merge: Merge branch 'dom'
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 0b6a59ba120e709659d543048b65beb8c9c67e86

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/30020/
Subject: LU-3285 tests: disable DOM files in racer by default
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: 4eefbc353d464dcbf24afcc575f5a9830cdc6806

[Gerrit Updater]

Mike Pershin ([e-mail]) merged in patch https://review.whamcloud.com/30021/
Subject: LU-3285 mdc: remove wrong assertion from mdc_object_ast_clear
Project: fs/lustre-release
Branch: dom
Current Patch Set:
Commit: f8929e6d0f3c28639763ba474f663cdfd5181268

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30054
Subject: LU-3285 mdt: get lu_object_attr for existent object
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 87fdb34df47bb49a67a21cedc5d944ace6a24886

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30055
Subject: LU-3285 mdt: remove assertion on mdt_pack_size2body()
Project: fs/lustre-release
Branch: dom
Current Patch Set: 1
Commit: 549e839f5fc4f73e0d41d04a45ce20051f42c04e

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30057
Subject: LU-3285 mdt: get lu_object_attr for existent object
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 27b5a0923ddc1bde88f2bbc5dd5b08c09b763745

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30058
Subject: LU-3285 mdt: remove assertion on mdt_pack_size2body()
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: d4b49722cd070e9f7a5c9531cea0bd8b397e04a0

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/29851/
Subject: LU-3285 merge: 'dom' branch merging
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 3cbe63e72c83ba50c3553d28e2fe6bc9d18c347a

[Gerrit Updater]

Mike Pershin ([e-mail]) uploaded a new patch: https://review.whamcloud.com/30059
Subject: LU-3285 tests: add FIO as test for DOM
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 7983be9af572433f24ceb4e3533b77866ec0e4e8

Patch moved to LU-10176

[Andreas Dilger]

Mike, thanks for attaching the design doc here. If you get a chance, it would be great to also upload this to wiki.lustre.org and link it into the "Layout Enhancement" and "PFL" Pages.

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/30016/
Subject: LU-3285 tests: disable kernel flusher in discard tests
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 099db8c2699e1f42a90240b400722ea727b7cf18

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/30057/
Subject: LU-3285 mdt: get lu_object_attr for existent object
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 7dd122f16f28f8a546f454468c028b014381d2c6

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/30058/
Subject: LU-3285 mdt: remove assertion on mdt_pack_size2body()
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 7cd12b5e4867b7eb36b691f14443324195573ddf

[Peter Jones]

Landed for 2.11