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smb3: add tracepoint for session expired or deleted

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In debugging reconnection problems, want to be able to more easily
trace cases in which the server has marked the SMB3 session
expired or deleted (to distinguish from timeout cases).

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
This commit is contained in:
Steve French
2018-07-30 14:23:58 -05:00
parent 06188fcf9c
commit e68a932b0b
2 changed files with 5 additions and 0 deletions
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4
fs/cifs/smb2ops.c
View File

@ -1483,7 +1483,11 @@ smb2_is_session_expired(char *buf)
shdr->Status != STATUS_USER_SESSION_DELETED)
return false;
trace_smb3_ses_expired(shdr->TreeId, shdr->SessionId,
le16_to_cpu(shdr->Command),
le64_to_cpu(shdr->MessageId));
cifs_dbg(FYI, "Session expired or deleted\n");
return true;
}

1
fs/cifs/trace.h
View File

@ -281,6 +281,7 @@ DEFINE_EVENT(smb3_cmd_done_class, smb3_##name, \
TP_ARGS(tid, sesid, cmd, mid))
DEFINE_SMB3_CMD_DONE_EVENT(cmd_done);
DEFINE_SMB3_CMD_DONE_EVENT(ses_expired);
DECLARE_EVENT_CLASS(smb3_exit_err_class,
TP_PROTO(unsigned int xid,