Commit d12bc6d2 authored by Shyam Prasad N's avatar Shyam Prasad N Committed by Steve French
Browse files

cifs: dump pending mids for all channels in DebugData 



Currently, we only dump the pending mid information only
on the primary channel in /proc/fs/cifs/DebugData.
If multichannel is active, we do not print the pending MID
list on secondary channels.

This change will dump the pending mids for all the channels
based on server->conn_id.

Signed-off-by: default avatarShyam Prasad N <sprasad@microsoft.com>
Reviewed-by: default avatarPaulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 896cd316

fs/cifs/cifs_debug.c

+27 −14
Original line number Diff line number Diff line
@@ -216,6 +216,7 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v) 
{

	struct mid_q_entry *mid_entry;

	struct TCP_Server_Info *server;

	struct TCP_Server_Info *chan_server;

	struct cifs_ses *ses;

	struct cifs_tcon *tcon;

	struct cifs_server_iface *iface;
@@ -474,23 +475,35 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v) 
					seq_puts(m, "\t\t[CONNECTED]\n");

			}

			spin_unlock(&ses->iface_lock);

		}

		if (i == 0)

			seq_printf(m, "\n\t\t[NONE]");



			seq_puts(m, "\n\n\tMIDs: ");

		spin_lock(&server->mid_lock);

		list_for_each_entry(mid_entry, &server->pending_mid_q, qhead) {

			seq_printf(m, "\n\tState: %d com: %d pid:"

					" %d cbdata: %p mid %llu\n",

			spin_lock(&ses->chan_lock);

			for (j = 0; j < ses->chan_count; j++) {

				chan_server = ses->chans[j].server;

				if (!chan_server)

					continue;



				if (list_empty(&chan_server->pending_mid_q))

					continue;



				seq_printf(m, "\n\tServer ConnectionId: 0x%llx",

					   chan_server->conn_id);

				spin_lock(&chan_server->mid_lock);

				list_for_each_entry(mid_entry, &chan_server->pending_mid_q, qhead) {

					seq_printf(m, "\n\t\tState: %d com: %d pid: %d cbdata: %p mid %llu",

						   mid_entry->mid_state,

						   le16_to_cpu(mid_entry->command),

						   mid_entry->pid,

						   mid_entry->callback_data,

						   mid_entry->mid);

				}

		spin_unlock(&server->mid_lock);

		seq_printf(m, "\n--\n");

				spin_unlock(&chan_server->mid_lock);

			}

			spin_unlock(&ses->chan_lock);

			seq_puts(m, "\n--\n");

		}

		if (i == 0)

			seq_printf(m, "\n\t\t[NONE]");

	}

	if (c == 0)

		seq_printf(m, "\n\t[NONE]");