Commit efe2e9f3 authored by Steve French's avatar Steve French
Browse files

smb3: improve dynamic tracing of open and posix mkdir 



Add dynamic trace point for open_enter (and posix mkdir enter)

Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
Reviewed-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
parent b0a42f2a

fs/cifs/smb2pdu.c

+5 −0
Original line number Diff line number Diff line
@@ -2196,6 +2196,8 @@ int smb311_posix_mkdir(const unsigned int xid, struct inode *inode, 
	rqst.rq_iov = iov;

	rqst.rq_nvec = n_iov;



	trace_smb3_posix_mkdir_enter(xid, tcon->tid, ses->Suid, CREATE_NOT_FILE,

				    FILE_WRITE_ATTRIBUTES);

	/* resource #4: response buffer */

	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);

	if (rc) {
@@ -2414,6 +2416,9 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, 
	if (rc)

		goto creat_exit;



	trace_smb3_open_enter(xid, tcon->tid, tcon->ses->Suid,

		oparms->create_options, oparms->desired_access);



	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags,

			    &rsp_iov);

	rsp = (struct smb2_create_rsp *)rsp_iov.iov_base;

fs/cifs/trace.h

+40 −1
Original line number Diff line number Diff line
@@ -411,8 +411,47 @@ DEFINE_SMB3_TCON_EVENT(tcon); 




/*

 * For smb2/smb3 open call

 * For smb2/smb3 open (including create and mkdir) calls

 */



DECLARE_EVENT_CLASS(smb3_open_enter_class,

	TP_PROTO(unsigned int xid,

		__u32	tid,

		__u64	sesid,

		int	create_options,

		int	desired_access),

	TP_ARGS(xid, tid, sesid, create_options, desired_access),

	TP_STRUCT__entry(

		__field(unsigned int, xid)

		__field(__u32, tid)

		__field(__u64, sesid)

		__field(int, create_options)

		__field(int, desired_access)

	),

	TP_fast_assign(

		__entry->xid = xid;

		__entry->tid = tid;

		__entry->sesid = sesid;

		__entry->create_options = create_options;

		__entry->desired_access = desired_access;

	),

	TP_printk("xid=%u sid=0x%llx tid=0x%x cr_opts=0x%x des_access=0x%x",

		__entry->xid, __entry->sesid, __entry->tid,

		__entry->create_options, __entry->desired_access)

)



#define DEFINE_SMB3_OPEN_ENTER_EVENT(name)        \

DEFINE_EVENT(smb3_open_enter_class, smb3_##name,  \

	TP_PROTO(unsigned int xid,		\

		__u32	tid,			\

		__u64	sesid,			\

		int	create_options,		\

		int	desired_access),	\

	TP_ARGS(xid, tid, sesid, create_options, desired_access))



DEFINE_SMB3_OPEN_ENTER_EVENT(open_enter);

DEFINE_SMB3_OPEN_ENTER_EVENT(posix_mkdir_enter);



DECLARE_EVENT_CLASS(smb3_open_err_class,

	TP_PROTO(unsigned int xid,

		__u32	tid,