diff options
| author | Liang Zhen <liang.zhen@intel.com> | 2017-01-28 19:05:16 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-03 13:01:38 +0100 |
| commit | 6cd67869214c3c80de7ab00fb8d1f7daada952e6 (patch) | |
| tree | c46d71a3d3c14b759eccb6e57e2673411a3b6889 /drivers | |
| parent | 59bedbccb5d27356a808f9451a3fb25adb093cc9 (diff) | |
staging: lustre: ksocklnd: ignore timedout TX on closing connection
ksocklnd reaper thread always tries to close the connection for the
first timedout zero-copy TX. This is wrong if this connection is
already being closed, because the reaper will see the same TX again
and again and cannot find out other timedout zero-copy TXs and close
connections for them.
Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8867
Reviewed-on: https://review.whamcloud.com/23973
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c index 6da9f31366c9..cbac88475b6c 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c @@ -2456,6 +2456,7 @@ ksocknal_check_peer_timeouts(int idx) list_for_each_entry(peer, peers, ksnp_list) { unsigned long deadline = 0; + struct ksock_tx *tx_stale; int resid = 0; int n = 0; @@ -2503,6 +2504,7 @@ ksocknal_check_peer_timeouts(int idx) if (list_empty(&peer->ksnp_zc_req_list)) continue; + tx_stale = NULL; spin_lock(&peer->ksnp_lock); list_for_each_entry(tx, &peer->ksnp_zc_req_list, tx_zc_list) { if (!cfs_time_aftereq(cfs_time_current(), @@ -2511,26 +2513,26 @@ ksocknal_check_peer_timeouts(int idx) /* ignore the TX if connection is being closed */ if (tx->tx_conn->ksnc_closing) continue; + if (!tx_stale) + tx_stale = tx; n++; } - if (!n) { + if (!tx_stale) { spin_unlock(&peer->ksnp_lock); continue; } - tx = list_entry(peer->ksnp_zc_req_list.next, - struct ksock_tx, tx_zc_list); - deadline = tx->tx_deadline; - resid = tx->tx_resid; - conn = tx->tx_conn; + deadline = tx_stale->tx_deadline; + resid = tx_stale->tx_resid; + conn = tx_stale->tx_conn; ksocknal_conn_addref(conn); spin_unlock(&peer->ksnp_lock); read_unlock(&ksocknal_data.ksnd_global_lock); CERROR("Total %d stale ZC_REQs for peer %s detected; the oldest(%p) timed out %ld secs ago, resid: %d, wmem: %d\n", - n, libcfs_nid2str(peer->ksnp_id.nid), tx, + n, libcfs_nid2str(peer->ksnp_id.nid), tx_stale, cfs_duration_sec(cfs_time_current() - deadline), resid, conn->ksnc_sock->sk->sk_wmem_queued); |