[SMB3] update info printed for each tree id in /proc/fs/cifs/DebugData

Message ID CAH2r5mv16tfOLHUCQSQfZKUuAWjTeD-pEqkHatEiZ09VqFhLkQ@mail.gmail.com
State New
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  • [SMB3] update info printed for each tree id in /proc/fs/cifs/DebugData
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Commit Message

Steve French May 20, 2018, 6:33 a.m.
print tree id in debugdata in proc to be able to help logging

When loooking at the logs for the new trace-cmd tracepoints for cifs,
it would help to know which tid is for which share (UNC name) so
update /proc/fs/cifs/DebugData to display the tid (which was missing in
output before). Also display Maximal Access which was missing as well.

Now the entry for typical entry for a tcon (in proc/fs/cifs/) looks

1) \\localhost\test Mounts: 1 DevInfo: 0x20 Attributes: 0x1006f
    PathComponentMax: 255 Status: 1 type: DISK
    Share Capabilities: None Aligned, Partition Aligned,    Share Flags: 0x0
    tid: 0xe0632a55    Optimal sector size: 0x200    Maximal Access: 0x1f01ff

Signed-off-by: Steve French <smfrench@gmail.com>
 fs/cifs/smb2ops.c | 2 ++
 1 file changed, 2 insertions(+)

 static void


diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index f0ae47e69cb3..7c0edd2ab784 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -748,9 +748,11 @@  smb2_dump_share_caps(struct seq_file *m, struct
cifs_tcon *tcon)
         seq_puts(m, " TRIM-support,");

     seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags);
+    seq_printf(m, "\n\ttid: 0x%x", tcon->tid);
     if (tcon->perf_sector_size)
         seq_printf(m, "\tOptimal sector size: 0x%x",
+    seq_printf(m, "\tMaximal Access: 0x%x", tcon->maximal_access);