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cifs: dump pending mids for all channels in DebugData

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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: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Shyam Prasad N 2023-03-13 11:09:12 +00:00 committed by Steve French
parent 896cd316b8
commit d12bc6d26f
1 changed files with 27 additions and 14 deletions
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41
fs/cifs/cifs_debug.c
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@ -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 @@ skip_rdma:
seq_puts(m, "\t\t[CONNECTED]\n");
}
spin_unlock(&ses->iface_lock);
seq_puts(m, "\n\n\tMIDs: ");
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(&chan_server->mid_lock);
}
spin_unlock(&ses->chan_lock);
seq_puts(m, "\n--\n");
}
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",
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");
}
if (c == 0)
seq_printf(m, "\n\t[NONE]");