From: Paulo Alcantara pc@manguebit.com
commit f446a630802f154ef0087771683bd4f8e9d08384 upstream.
Return the DFS root session id in /proc/fs/cifs/DebugData to make it easier to track which IPC tcon was used to get new DFS referrals for a specific connection, and aids in debugging.
A simple output of it would be
Sessions: 1) Address: 192.168.1.13 Uses: 1 Capability: 0x300067 Session Status: 1 Security type: RawNTLMSSP SessionId: 0xd80000000009 User: 0 Cred User: 0 DFS root session id: 0x128006c000035
Signed-off-by: Paulo Alcantara (SUSE) pc@manguebit.com Cc: stable@vger.kernel.org # 6.2 Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/cifs_debug.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -419,6 +419,11 @@ skip_rdma: from_kuid(&init_user_ns, ses->linux_uid), from_kuid(&init_user_ns, ses->cred_uid));
+ if (ses->dfs_root_ses) { + seq_printf(m, "\n\tDFS root session id: 0x%llx", + ses->dfs_root_ses->Suid); + } + spin_lock(&ses->chan_lock); if (CIFS_CHAN_NEEDS_RECONNECT(ses, 0)) seq_puts(m, "\tPrimary channel: DISCONNECTED ");