From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5A6EB8BE0 for ; Tue, 28 Mar 2023 14:52:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C9775C4339B; Tue, 28 Mar 2023 14:52:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1680015149; bh=bkusqBlP8Nhq982QU41p/F6NHnnsnifh37i35c2iLxA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2cul+oyDc6a4vG+WBwip62b4Y5cSwBEsYFUcglVKv0tdeKlumhDxQbbKXiYUaDen/ IE6JEWbRS12SQqtg6KtvGvJB2bvVD4Tl6rmROoYPrYlt2Owzson14H2ALbhP8d+8WF ls93m20ZytFla1BJkh027wC6Lsxj9oRGnLBG4nB8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Shyam Prasad N , "Paulo Alcantara (SUSE)" , Steve French Subject: [PATCH 6.2 166/240] cifs: dump pending mids for all channels in DebugData Date: Tue, 28 Mar 2023 16:42:09 +0200 Message-Id: <20230328142626.583129985@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230328142619.643313678@linuxfoundation.org> References: <20230328142619.643313678@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Shyam Prasad N 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 Reviewed-by: Paulo Alcantara (SUSE) Cc: stable@vger.kernel.org Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- 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]");