This is a note to let you know that I've just added the patch titled
cifs: dump pending mids for all channels in DebugData
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cifs-dump-pending-mids-for-all-channels-in-debugdata.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d12bc6d26f92c51b28e8f4a146ffcc630b688198 Mon Sep 17 00:00:00 2001
From: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
Date: Mon, 13 Mar 2023 11:09:12 +0000
Subject: cifs: dump pending mids for all channels in DebugData
From: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
commit d12bc6d26f92c51b28e8f4a146ffcc630b688198 upstream.
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@xxxxxxxxxxxxx>
Reviewed-by: Paulo Alcantara (SUSE) <pc@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/cifs_debug.c | 41 +++++++++++++++++++++++++++--------------
1 file changed, 27 insertions(+), 14 deletions(-)
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -215,6 +215,7 @@ static int cifs_debug_data_proc_show(str
{
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;
@@ -471,23 +472,35 @@ 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]");
Patches currently in stable-queue which might be from sprasad@xxxxxxxxxxxxx are
queue-6.2/cifs-lock-chan_lock-outside-match_session.patch
queue-6.2/smb3-lower-default-deferred-close-timeout-to-address-perf-regression.patch
queue-6.2/cifs-do-not-poll-server-interfaces-too-regularly.patch
queue-6.2/cifs-dump-pending-mids-for-all-channels-in-debugdata.patch
queue-6.2/smb3-fix-unusable-share-after-force-unmount-failure.patch
queue-6.2/cifs-empty-interface-list-when-server-doesn-t-support-query-interfaces.patch
queue-6.2/cifs-print-session-id-while-listing-open-files.patch
queue-6.2/cifs-append-path-to-open_enter-trace-event.patch
