From: Steve French <stfrench@microsoft.com>
Date: Thu, 9 May 2019 03:41:37 +0000 (-0500)
Subject: smb3: display session id in debug data
X-Git-Tag: v5.2-rc1~6^2~9
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b63a9de02d64ecd5ff0749e90253f5b30ba5b9c0;p=thirdparty%2Fkernel%2Flinux.git

smb3: display session id in debug data

Displaying the session id in /proc/fs/cifs/DebugData
is needed in order to correlate Linux client information
with network and server traces for many common support
scenarios.  Turned out to be very important for debugging.

Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
---

diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 6a69f11aacf76..45e74da40f3a5 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -380,6 +380,8 @@ skip_rdma:
 				atomic_read(&server->in_send),
 				atomic_read(&server->num_waiters));
 #endif
+			/* dump session id helpful for use with network trace */
+			seq_printf(m, " SessionId: 0x%llx", ses->Suid);
 			if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
 				seq_puts(m, " encrypted");
 			if (ses->sign)