[LU-12678] LNet simplification work from linux client

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Fix Version/s: Upstream
• Assignee: James A Simmons
• Reporter: James A Simmons

Description

Neil has been exploring how to simplify the LNet layer to make it suitable for linux kernel inclusion. This ticket will track this work for merger into the OpenSFS tree. Al Viro's iter work will also be ported over.

Issue Links

• is duplicated by: LU-16041 Wrong pointer dereference when lnet_startup_lndni fails
• is related to: LU-13534 Landing an LU-12678 high likely introduce a random memory corruption bug
• is related to: LU-14633 change ksocklnd over to use iov_iter_for_each_range()
• is related to: LU-13004 Use a single style of IO buf descriptor - iovec
• is related to: LU-12929 Field net_state in struct lnet_net is never used, only set. It should be discarded
• is related to: LU-12511 Prepare lustre for adoption into the linux kernel
• is related to: LU-13005 Remove LNet event queuing subsystem (lib-eq)

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/41941/
Subject: LU-12678 lnet: convert lpni_refcount to a kref
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: e520ee276800362caa652088b56325fac16aef7f

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39304/
Subject: LU-12678 o2iblnd: change some ints to bool.
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 86e192059905ac49406f7aad0fd552bd2038047f

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39302/
Subject: LU-12678 socklnd: change various ints to bool.
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: a3275d1d79df5ab5f7ac2cbb5cdef982e8f3c959

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39303/
Subject: LU-12678 o2iblnd: convert peers hash table to hashtable.h
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: c66668387a11492ef95482add340321cb646c961

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39301/
Subject: LU-12678 lnet: discard LNET_MD_PHYS
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: aa57e829867caa9122bb452c83e08af3d687f87e

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39295/
Subject: LU-12678 lnet: use init_wait() rather than init_waitqueue_entry()
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: dd0e7523e10202d224b1842b3b28017ecc9abc46

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/37914/
Subject: LU-12678 lnet: discard WIRE_ATTR
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 6ae187404a8d7f8a41a06c797cdd2dde90f93bd7

[Andreas Dilger]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39124/
Subject: LU-12768 o2iblnd: wait properly for fps->increasing.
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 530eca31556f7708781bcd1b1809ae286aee4c57

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39120/
Subject: LU-12678 lnet: clarify initialization of lpni_refcount
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 5bcb17cf1d476982e3f2b2b4f43d7ff673bf9e1d

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/39121/
Subject: LU-12678 socklnd: change ksnd_nthreads to atomic_t
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 4b0d3c0e41201716f4a1bb2da17254695b623d7e

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/38646/
Subject: LU-12678 lnet: remove LNetMEUnlink and clean up related code
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: e17ee2296c201ca91ea095b1a42250f733c20cf5