[LU-18725] Create ll_decode_lov

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Labels: utils
• Severity: 3
• Assignee: Sohei Koyama
• Reporter: Sohei Koyama

Description

Like ll_decode_linkea, create ll_decode_lov.
This allows us to directly scan the MDT for information that can be obtained with lfs getstripe.

[root@lustre-serv ~]# ll_decode_lov /mnt/ldiskfs/ROOT/st/foo 
lmm_stripe_count:  2
lmm_stripe_size:   1048576
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 1
  obdidx  objid    objid(hex)  group
  1  2    0x2    0x280000400
  0  20162    0x4ec2    0x240000400
[root@lustre-serv ~]# lfs getstripe /lustre/st/foo 
/lustre/st/foo
lmm_stripe_count:  2
lmm_stripe_size:   1048576
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 1
  obdidx     objid     objid     group
       1               2            0x2     0x280000400
       0           20162         0x4ec2     0x240000400 

Comments

[Gerrit Updater]

"Sohei Koyama <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/58126
Subject: LU-18725 utils: create ll_decode_lov
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: efe6d30615ea647a60929aa487148bce7e5d00d6