[LU-14962] Bug in MR implementation reintroduced LU-8106

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Severity: 3
• Assignee: Chris Horn
• Reporter: Chris Horn

Description

Bug in

commit fa8b4e6357c53ea457ef6624b0b19bece0b0fdde
Author: Amir Shehata <[e-mail]>
Date:   Thu May 26 15:42:39 2016 -0700

    LU-7734 lnet: peer/peer_ni handling adjustments

Broke the fix for LU-8106:

commit 47b7b319783f27023b0cefe54a2a2eea678284f2
Author: Doug Oucharek <[e-mail]>
Date:   Wed Mar 2 12:08:00 2016 +0800

    LU-8106 lnet: Do not drop message when shutting down LNet

We need to see whether lnet_nid2peerni_locked() returns -ESHUTDOWN

        lpni = lnet_nid2peerni_locked(from_nid, ni->ni_nid, cpt);
        if (IS_ERR(lpni)) {
                lnet_net_unlock(cpt);
                CERROR("%s, src %s: Dropping %s "
                       "(error %ld looking up sender)\n",
                       libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
                       lnet_msgtyp2str(type), PTR_ERR(lpni));
                lnet_msg_free(msg);
                if (rc == -ESHUTDOWN)
                        /* We are shutting down.  Don't do anything more */
                        return 0;
                goto drop;
        }