[LU-7716] Do not do subdir check if source and target are in the same directory

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.8.0
• Affects Version/s: Lustre 2.8.0
• Severity: 3
• Assignee: Di Wang (Inactive)
• Reporter: Di Wang (Inactive)

Description

In mdt_reint_rename_internal(), we do not need do is_subdir check if source and target are in the same directory.

     
       /* Check if @mtgtdir is subdir of @mold, before locking child
         * to avoid reverse locking. */
        rc = mdt_is_subdir(info, mtgtdir, old_fid);  <--- no need check if mtgtdir == msrcdir
        if (rc)
                GOTO(out_put_old, rc);

Issue Links

• is related to: LU-7372 replay-dual test_26: test failed to respond and timed out
• is related to: LU-7725 Error unpacking OUT message