[LU-16194] Define negative PFL extent start/end as invalid

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Affects Version/s: Lustre 2.12.8, Lustre 2.15.1
• Environment: Servers: CentOS 7.9 (3.10.0-1160.49.1.el7.x86_64), Lustre 2.12.8, ZFS 0.8.5 ; 2.12 Clients: CentOS 7.9 (3.10.0-1160.53.1.el7.x86_64), Lustre 2.12.8 ; 2.15 Clients: CentOS 7.9 (3.10.0-1160.76.1.el7.x86_64), Lustre 2.15.1
• Severity: 3
• Assignee: Feng Lei
• Reporter: Feng Lei

Description

Even though lu_extent.e_start and lu_extent.e_end are u64 type, we convert them to s64 and check whether they are negative values on MDS. All negative values except -1 (EOF) are regarded as invalid.

Issue Links

• is related to: LU-17450 sanity: interop test failures with master+2.15
• is related to: LU-16152 PFL YAML file with extent >= 2G leads to overflow when used as template; may trigger MDS kernel panic

Comments

[Peter Jones]

All patches merged for 2.16

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/53771/
Subject: LU-16194 tests: set minversion of MDS for sanity/65q
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 7e88ae40b8a7489b20680c780baa733473a490f9

[Gerrit Updater]

"Feng Lei <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/53771
Subject: LU-16194 tests: set minversion of MDS for sanity/65p
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 204ac072e9bf33e40522803d6ec6d9fbe2957705

[Andreas Dilger]

This test is failing interop between master (2.15.60.20) and 2.15.4. Please review failure and push a patch. Either skip because it is not expected to work with old servers, or fix as needed:
https://testing.whamcloud.com/test_sets/dc77145c-b7d3-4010-a7a2-f8435f9353ff

[Peter Jones]

Landed for 2.16

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/48684/
Subject: LU-16194 lod: define negative extent offset as invalid
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 3d6dbc72e161927ada762d2f0a68cf2d7acef4cb

[Gerrit Updater]

"Feng Lei <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/48684
Subject: LU-16194 lod: define negative extent offset as invalid
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 76c2cde4123e7a1bee1dbd1dfc49f9fbf19842b5