[LU-1290] ll_vfs_dq_transfer() is called when oo_guard is held

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.3.0
• Affects Version/s: Lustre 2.3.0
• Severity: 3
• Assignee: Niu Yawei (Inactive)
• Reporter: Niu Yawei (Inactive)

Description

osd_attr_set() > cfs_spin_lock(&obj>oo_guard) > osd_inode_setattr() -> ll_vfs_dq_transfer() -> down_write(&sb_dqopt(inode>i_sb)->dqptr_sem);

Comments

[Niu Yawei (Inactive)]

patch landed on master.

Andreas, thanks. I'll put more information when reporting bug next time.

[Andreas Dilger]

Niu, just as a general guideline, it is good to have more descriptive bug reports, so that when Oleg and I are looking at this bug/patch for landing, that it is possible to get some understanding of the problem being hit.

This bug report does not indicate whether this is an issue you found during inspection, hit during testing, how severe the problem is (deadlock, error to application, oops, node hang, data corruption, etc), or how frequently or under which conditions it is expected to be hit.

[Niu Yawei (Inactive)]

http://review.whamcloud.com/2463