[LU-11838] Support linux kernel version 4.18

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.13.0, Lustre 2.12.3
• Affects Version/s: Lustre 2.13.0
• Environment: Ubuntu18.10 and the beta version of the most beloved distro :-)
• Assignee: James A Simmons
• Reporter: James A Simmons

Description

Linux distributions are looking to move their platforms to the 4.18 kernel which was originally the LTS for the linux kernel (that has changed to 4.19). This ticket covers the work needed to support this kernel version.

Issue Links

• is related to: LU-11803 sanity test 255c fails with 'Ladvise test 12, bad lock count, returned 1, actual 0'
• is related to: LU-12269 Support RHEL 8.0
• is related to: LU-9679 Prepare lustre for adoption into the linux kernel
• is related to: LU-12270 Support linux kernel version 4.19
• is related to: LU-12331 hardened usercopy whitelisting
• is related to: LU-11893 doesn't handle logical network interface properly.
• is related to: LU-6399 Libcfs socket cleanup
• is related to: LU-11233 gcc8 support

Comments

[James A Simmons]

I think everything required for 4.18 support has landed to the latest 2.12 LTS.

[Malcolm Haak - NCI (Inactive)]

Can we please get the server commits backported to b2_12 as well? (Or at least a list of which commits to cherry pick)

Currently I'm doing a couple obvious cherry-picks to get it building but I'd prefer not to be.

[Gerrit Updater]

Minh Diep ([e-mail]) uploaded a new patch: https://review.whamcloud.com/35474
Subject: LU-11838 scrub: handle s_uuid change to uuid_t
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 21cea3cbd40852bd856b7d03ce77fd366bd70ea4

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35247/
Subject: LU-11838 osd-ldiskfs: inode times switched to timespec64
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: b91d292473a786439e5f384121b81354cfe487f4

[James A Simmons]

Yes. I'm getting ready to rebase it.

[Peter Jones]

Except for https://review.whamcloud.com/#/c/33967/ which you are going to switch to LU-11893 when you refresh it, right?

[James A Simmons]

All landed.

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35158/
Subject: LU-11838 socklnd: use for_each_netdev() instead of lnet_ipif_enumerate()
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 8da485ecc5d836e8b514d1d16b552de3ce0ab43e

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35170/
Subject: LU-11838 kernel: harden current_time autoconf test
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 5601d68528969648a8dbb30004196c39f2e6d5a6

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35160/
Subject: LU-11838: lnet: remove lnet_ipif_enumerate()
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 568f3991739b47f8aabbcdd17c3a7d9b0b2cae8a

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/35156/
Subject: LU-11838 llite: address_space ->page_tree renamed ->i_pages
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: fa0fff00272216dd0947e67cfb43f258239b8f27