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smb3: add trace event for mknod

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Add trace points to help debug mknod and mkfifo:

   smb3_mknod_done
   smb3_mknod_enter
   smb3_mknod_err

Example output:

      TASK-PID     CPU#  |||||  TIMESTAMP  FUNCTION
         | |         |   |||||     |         |
    mkfifo-6163    [003] .....   960.425558: smb3_mknod_enter: xid=12 sid=0xb55130f6 tid=0x46e6241c path=\fifo1
    mkfifo-6163    [003] .....   960.432719: smb3_mknod_done: xid=12 sid=0xb55130f6 tid=0x46e6241c

Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Meetakshi Setiya <msetiya@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2024-03-24 00:01:02 -05:00
parent 4cece76496
commit e9e9fbeb83
2 changed files with 10 additions and 1 deletions
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7
fs/smb/client/dir.c
View File

@ -612,11 +612,18 @@ int cifs_mknod(struct mnt_idmap *idmap, struct inode *inode,
goto mknod_out;
}
trace_smb3_mknod_enter(xid, tcon->ses->Suid, tcon->tid, full_path);
rc = tcon->ses->server->ops->make_node(xid, inode, direntry, tcon,
full_path, mode,
device_number);
mknod_out:
if (rc)
trace_smb3_mknod_err(xid, tcon->ses->Suid, tcon->tid, rc);
else
trace_smb3_mknod_done(xid, tcon->ses->Suid, tcon->tid);
free_dentry_path(page);
free_xid(xid);
cifs_put_tlink(tlink);

4
fs/smb/client/trace.h
View File

@ -375,6 +375,7 @@ DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(get_reparse_compound_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(delete_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(mkdir_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(tdis_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(mknod_enter);
DECLARE_EVENT_CLASS(smb3_inf_compound_done_class,
TP_PROTO(unsigned int xid,
@ -415,7 +416,7 @@ DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(query_wsl_ea_compound_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(delete_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(mkdir_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(tdis_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(mknod_done);
DECLARE_EVENT_CLASS(smb3_inf_compound_err_class,
TP_PROTO(unsigned int xid,
@ -461,6 +462,7 @@ DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(query_wsl_ea_compound_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(mkdir_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(delete_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(tdis_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(mknod_err);
/*
* For logging SMB3 Status code and Command for responses which return errors