From: Steve French <stfrench@microsoft.com>
Date: Mon, 30 Jul 2018 14:23:58 -0500
Subject: [PATCH] smb3: add tracepoint for session expired or deleted
Git-commit: e68a932b0b8e38eaa2111fc3aab31ff66988f1c4
Patch-mainline: v4.18
References: bsc#1144333
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>
Acked-by: Aurelien Aptel <aaptel@suse.com>
---
fs/cifs/smb2ops.c | 4 ++++
fs/cifs/trace.h | 1 +
2 files changed, 5 insertions(+)
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index dad6dc763200..314556c083f3 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -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;
}
diff --git a/fs/cifs/trace.h b/fs/cifs/trace.h
index 67e413f6ee4d..0fdf2f5c07ba 100644
--- a/fs/cifs/trace.h
+++ b/fs/cifs/trace.h
@@ -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,
--
2.16.4