[LU-13344] Support for linux 5.6 clients

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Upstream, Lustre 2.15.0
• Severity: 3
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

in 5.5: The kernel crypto API was significantly reworked.
This impacts the adler32 and gss

in 5.5: Changed struct jbd2_journal_handle
Members h_buffer_credits* changed to h_revoke_credits*

 In 5.6: procfs changed from file_operations to proc_ops
This impacts all users of procfs and a few places where procfs and debugfs usages are interchanged as well as some structures that contain file_operations vs proc_ops.

In 5.6: time_t is removed. 
All users are expected to shift to time64_t. For the majority of cases this is just a name change (64 bit architectures have been using 'long' for time_t for a very long time.

However this does impact 32 bit architectures and inter-op where time_t was not enforced to 64 bit previously needs to be resolved.

In 5.6: timespec*_trunc is removed.
It's not very useful so the one usage can probably be dropped entirely.

Issue Links

• is related to: LU-14055 Write performance regression caused by an commit from LU-13344
• is related to: LU-12511 Prepare lustre for adoption into the linux kernel
• is related to: LU-9019 Migrate lustre to standard 64 bit time kernel API

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/37873/
Subject: LU-13344 libcfs: Abstract proc_fs with proc_ops
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 13cd0f9f667c6e138a8cb235d4920f8b749cb154

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/40994/
Subject: LU-13344 gss: Update crypto to use sync_skcipher
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 1d67a1eb08c7b95e7d15fa72c360e4fe11f838d4

[Gerrit Updater]

James Nunez ([e-mail]) uploaded a new patch: https://review.whamcloud.com/41031
Subject: Revert "LU-13344 all: Separate debugfs and procfs handling"
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 38f325c6f401434647442306ccc0cabe1a620219

[Gerrit Updater]

Sebastien Buisson ([e-mail]) uploaded a new patch: https://review.whamcloud.com/40994
Subject: LU-13344 gss: Update crypto to use sync_skcipher
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 30044c1814250169bdf96572a2fe915a76bbf62c

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/38586/
Subject: LU-13344 gss: Update crypto to use sync_skcipher
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 0a65279121a5a0f5c8831dd2ebd6927a235a94c2

[Gerrit Updater]

Jian Yu ([e-mail]) uploaded a new patch: https://review.whamcloud.com/40381
Subject: LU-13344 lnet: stop using struct timeval
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: d74864d0346849e4de40c3b0a31f97f64fbff103

[Shuichi Ihara]

I found a write performance regression caused by patch https://review.whamcloud.com/#/c/37834/. I opened a separate ticket for it. LU-14055

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/37834/
Subject: LU-13344 all: Separate debugfs and procfs handling
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 76626d6c52b19b5cca04007c4b1656cc52a487c1

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/38314/
Subject: LU-13344 osd-ldiskfs: timespec64 is broken
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 1970a12d7d559dd6d08765047af2b99a3a388524

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/38105/
Subject: LU-13344 lnet: stop using struct timeval
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 5e4c658c4fea4f2b10c2877394eec824474ecc66