[LU-3057] Hang at sanity test_56x and test_56w

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: HB revzfs
• Severity: 3
• Assignee: Jinshan Xiong (Inactive)
• Reporter: Jinshan Xiong (Inactive)

Description

The root cause of this problem is that ll_setattr is called directly in ioctl ll_swap_layouts(). It should have been called with inode mutex held.

        if (llss->ia2.ia_valid != 0)
                rc = ll_setattr(file1->f_dentry, &llss->ia2);

        if (llss->ia1.ia_valid != 0)
                rc1 = ll_setattr(file2->f_dentry, &llss->ia1);

Issue Links

• is duplicated by: LU-3092 sanity 56w fails on current master.
• is duplicated by: LU-3146 Test failure on test suite sanity, subtest test_56w