smb3: add additional ftrace entry points for entry/exit to cifs.ko

Signed-off-by: Steve French <smfrench@gmail.com>

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 6c4da5d..dc80f84 100644 (file)
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -21,6 +21,7 @@
 #ifndef _CIFSPROTO_H
 #define _CIFSPROTO_H
 #include <linux/nls.h>
+#include "trace.h"
 
 struct statfs;
 struct smb_vol;
@@ -47,6 +48,7 @@ extern void _free_xid(unsigned int);
        cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n",      \
                 __func__, __xid,                                       \
                 from_kuid(&init_user_ns, current_fsuid()));            \
+       trace_smb3_enter(__xid, __func__);                      \
        __xid;                                                  \
 })
 
@@ -54,7 +56,11 @@ extern void _free_xid(unsigned int);
 do {                                                           \
        _free_xid(curr_xid);                                    \
        cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n",      \
-                __func__, curr_xid, (int)rc);                          \
+                __func__, curr_xid, (int)rc);                  \
+       if (rc)                                                 \
+               trace_smb3_exit_err(curr_xid, __func__, (int)rc);       \
+       else                                                    \
+               trace_smb3_exit_done(curr_xid, __func__);       \
 } while (0)
 extern int init_cifs_idmap(void);
 extern void exit_cifs_idmap(void);

diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index 20185be..86f1aca 100644 (file)
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -2457,9 +2457,8 @@ map_smb2_to_linux_error(char *buf, bool log_err)
        __le32 smb2err = shdr->Status;
 
        if (smb2err == 0) {
-               trace_smb3_cmd_done(le32_to_cpu(shdr->ProcessId), shdr->TreeId,
-                       shdr->SessionId, le16_to_cpu(shdr->Command),
-                       le64_to_cpu(shdr->MessageId));
+               trace_smb3_cmd_done(shdr->TreeId, shdr->SessionId,
+                       le16_to_cpu(shdr->Command), le64_to_cpu(shdr->MessageId));
                return 0;
        }
 
@@ -2483,8 +2482,8 @@ map_smb2_to_linux_error(char *buf, bool log_err)
        cifs_dbg(FYI, "Mapping SMB2 status code 0x%08x to POSIX err %d\n",
                 __le32_to_cpu(smb2err), rc);
 
-       trace_smb3_cmd_err(le32_to_cpu(shdr->ProcessId), shdr->TreeId,
-                       shdr->SessionId, le16_to_cpu(shdr->Command),
+       trace_smb3_cmd_err(shdr->TreeId, shdr->SessionId,
+                       le16_to_cpu(shdr->Command),
                        le64_to_cpu(shdr->MessageId), le32_to_cpu(smb2err), rc);
        return rc;
 }

diff --git a/fs/cifs/trace.h b/fs/cifs/trace.h
index 935a589..9bba8e1 100644 (file)
--- a/fs/cifs/trace.h
+++ b/fs/cifs/trace.h
@@ -50,8 +50,8 @@ DECLARE_EVENT_CLASS(smb3_rw_err_class,
                __entry->len = len;
                __entry->rc = rc;
        ),
-       TP_printk("xid=%u fid=0x%llx tid=0x%x sid=0x%llx offset=0x%llx len=0x%x rc=%d",
-               __entry->xid, __entry->fid, __entry->tid, __entry->sesid,
+       TP_printk("\txid=%u sid=0x%llx tid=0x%x fid=0x%llx offset=0x%llx len=0x%x rc=%d",
+               __entry->xid, __entry->sesid, __entry->tid, __entry->fid,
                __entry->offset, __entry->len, __entry->rc)
 )
 
@@ -95,8 +95,8 @@ DECLARE_EVENT_CLASS(smb3_rw_done_class,
                __entry->offset = offset;
                __entry->len = len;
        ),
-       TP_printk("xid=%u fid=0x%llx tid=0x%x sid=0x%llx offset=0x%llx len=0x%x",
-               __entry->xid, __entry->fid, __entry->tid, __entry->sesid,
+       TP_printk("xid=%u sid=0x%llx tid=0x%x fid=0x%llx offset=0x%llx len=0x%x",
+               __entry->xid, __entry->sesid, __entry->tid, __entry->fid,
                __entry->offset, __entry->len)
 )
 
@@ -137,8 +137,8 @@ DECLARE_EVENT_CLASS(smb3_fd_err_class,
                __entry->sesid = sesid;
                __entry->rc = rc;
        ),
-       TP_printk("xid=%u fid=0x%llx tid=0x%x sid=0x%llx rc=%d",
-               __entry->xid, __entry->fid, __entry->tid, __entry->sesid,
+       TP_printk("\txid=%u sid=0x%llx tid=0x%x fid=0x%llx rc=%d",
+               __entry->xid, __entry->sesid, __entry->tid, __entry->fid,
                __entry->rc)
 )
 
@@ -185,8 +185,8 @@ DECLARE_EVENT_CLASS(smb3_inf_err_class,
                __entry->type = type;
                __entry->rc = rc;
        ),
-       TP_printk("xid=%u fid=0x%llx tid=0x%x sid=0x%llx class=%u type=0x%x rc=%d",
-               __entry->xid, __entry->fid, __entry->tid, __entry->sesid,
+       TP_printk("xid=%u sid=0x%llx tid=0x%x fid=0x%llx class=%u type=0x%x rc=%d",
+               __entry->xid, __entry->sesid, __entry->tid, __entry->fid,
                __entry->infclass, __entry->type, __entry->rc)
 )
 
@@ -209,16 +209,14 @@ DEFINE_SMB3_INF_ERR_EVENT(fsctl_err);
  * For logging SMB3 Status code and Command for responses which return errors
  */
 DECLARE_EVENT_CLASS(smb3_cmd_err_class,
-       TP_PROTO(__u32  pid,
-               __u32   tid,
+       TP_PROTO(__u32  tid,
                __u64   sesid,
                __u16   cmd,
                __u64   mid,
                __u32   status,
                int     rc),
-       TP_ARGS(pid, tid, sesid, cmd, mid, status, rc),
+       TP_ARGS(tid, sesid, cmd, mid, status, rc),
        TP_STRUCT__entry(
-               __field(__u32, pid)
                __field(__u32, tid)
                __field(__u64, sesid)
                __field(__u16, cmd)
@@ -227,7 +225,6 @@ DECLARE_EVENT_CLASS(smb3_cmd_err_class,
                __field(int, rc)
        ),
        TP_fast_assign(
-               __entry->pid = pid;
                __entry->tid = tid;
                __entry->sesid = sesid;
                __entry->cmd = cmd;
@@ -235,61 +232,109 @@ DECLARE_EVENT_CLASS(smb3_cmd_err_class,
                __entry->status = status;
                __entry->rc = rc;
        ),
-       TP_printk(" pid=%u tid=0x%x sid=0x%llx cmd=%u mid=%llu status=0x%x rc=%d",
-               __entry->pid, __entry->tid, __entry->sesid,
-               __entry->cmd, __entry->mid, __entry->status, __entry->rc)
+       TP_printk("\tsid=0x%llx tid=0x%x cmd=%u mid=%llu status=0x%x rc=%d",
+               __entry->sesid, __entry->tid, __entry->cmd, __entry->mid,
+               __entry->status, __entry->rc)
 )
 
 #define DEFINE_SMB3_CMD_ERR_EVENT(name)          \
 DEFINE_EVENT(smb3_cmd_err_class, smb3_##name,    \
-       TP_PROTO(unsigned int pid,              \
-               __u32   tid,                    \
+       TP_PROTO(__u32  tid,                    \
                __u64   sesid,                  \
                __u16   cmd,                    \
                __u64   mid,                    \
                __u32   status,                 \
                int     rc),                    \
-       TP_ARGS(pid, tid, sesid, cmd, mid, status, rc))
+       TP_ARGS(tid, sesid, cmd, mid, status, rc))
 
 DEFINE_SMB3_CMD_ERR_EVENT(cmd_err);
 
 DECLARE_EVENT_CLASS(smb3_cmd_done_class,
-       TP_PROTO(__u32  pid,
-               __u32   tid,
+       TP_PROTO(__u32  tid,
                __u64   sesid,
                __u16   cmd,
                __u64   mid),
-       TP_ARGS(pid, tid, sesid, cmd, mid),
+       TP_ARGS(tid, sesid, cmd, mid),
        TP_STRUCT__entry(
-               __field(__u32, pid)
                __field(__u32, tid)
                __field(__u64, sesid)
                __field(__u16, cmd)
                __field(__u64, mid)
        ),
        TP_fast_assign(
-               __entry->pid = pid;
                __entry->tid = tid;
                __entry->sesid = sesid;
                __entry->cmd = cmd;
                __entry->mid = mid;
        ),
-       TP_printk("pid=%u tid=0x%x sid=0x%llx cmd=%u mid=%llu",
-               __entry->pid, __entry->tid, __entry->sesid,
+       TP_printk("\tsid=0x%llx tid=0x%x cmd=%u mid=%llu",
+               __entry->sesid, __entry->tid,
                __entry->cmd, __entry->mid)
 )
 
 #define DEFINE_SMB3_CMD_DONE_EVENT(name)          \
 DEFINE_EVENT(smb3_cmd_done_class, smb3_##name,    \
-       TP_PROTO(unsigned int pid,              \
-               __u32   tid,                    \
+       TP_PROTO(__u32  tid,                    \
                __u64   sesid,                  \
                __u16   cmd,                    \
                __u64   mid),                   \
-       TP_ARGS(pid, tid, sesid, cmd, mid))
+       TP_ARGS(tid, sesid, cmd, mid))
 
 DEFINE_SMB3_CMD_DONE_EVENT(cmd_done);
 
+DECLARE_EVENT_CLASS(smb3_exit_err_class,
+       TP_PROTO(unsigned int xid,
+               const char *func_name,
+               int     rc),
+       TP_ARGS(xid, func_name, rc),
+       TP_STRUCT__entry(
+               __field(unsigned int, xid)
+               __field(const char *, func_name)
+               __field(int, rc)
+       ),
+       TP_fast_assign(
+               __entry->xid = xid;
+               __entry->func_name = func_name;
+               __entry->rc = rc;
+       ),
+       TP_printk("\t%s: xid=%u rc=%d",
+               __entry->func_name, __entry->xid, __entry->rc)
+)
+
+#define DEFINE_SMB3_EXIT_ERR_EVENT(name)          \
+DEFINE_EVENT(smb3_exit_err_class, smb3_##name,    \
+       TP_PROTO(unsigned int xid,              \
+               const char *func_name,          \
+               int     rc),                    \
+       TP_ARGS(xid, func_name, rc))
+
+DEFINE_SMB3_EXIT_ERR_EVENT(exit_err);
+
+DECLARE_EVENT_CLASS(smb3_enter_exit_class,
+       TP_PROTO(unsigned int xid,
+               const char *func_name),
+       TP_ARGS(xid, func_name),
+       TP_STRUCT__entry(
+               __field(unsigned int, xid)
+               __field(const char *, func_name)
+       ),
+       TP_fast_assign(
+               __entry->xid = xid;
+               __entry->func_name = func_name;
+       ),
+       TP_printk("\t%s: xid=%u",
+               __entry->func_name, __entry->xid)
+)
+
+#define DEFINE_SMB3_ENTER_EXIT_EVENT(name)        \
+DEFINE_EVENT(smb3_enter_exit_class, smb3_##name,  \
+       TP_PROTO(unsigned int xid,              \
+               const char *func_name),         \
+       TP_ARGS(xid, func_name))
+
+DEFINE_SMB3_ENTER_EXIT_EVENT(enter);
+DEFINE_SMB3_ENTER_EXIT_EVENT(exit_done);
+
 #endif /* _CIFS_TRACE_H */
 
 #undef TRACE_INCLUDE_PATH