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smb3: add trace point for queryfs (statfs)

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In debugging a recent performance problem with statfs, it would have
been helpful to be able to trace the smb3 query fs info request
more narrowly.  Add a trace point "smb3_qfs_done"

Which displays:

 stat-68950   [008] .....  1472.360598: smb3_qfs_done: xid=14 sid=0xaa9765e4 tid=0x95a76f54 unc_name=\\localhost\test rc=0

Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2023-09-01 01:29:17 -05:00
parent f48d4d35ad
commit feeec636b6
2 changed files with 2 additions and 1 deletions
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1
fs/smb/client/smb2ops.c
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@ -2683,6 +2683,7 @@ smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
smb2_copy_fs_info_to_kstatfs(info, buf);
qfs_exit:
trace_smb3_qfs_done(xid, tcon->tid, tcon->ses->Suid, tcon->tree_name, rc);
free_rsp_buf(buftype, rsp_iov.iov_base);
return rc;
}

2
fs/smb/client/trace.h
View file

@ -691,7 +691,7 @@ DEFINE_EVENT(smb3_tcon_class, smb3_##name, \
TP_ARGS(xid, tid, sesid, unc_name, rc))
DEFINE_SMB3_TCON_EVENT(tcon);
DEFINE_SMB3_TCON_EVENT(qfs_done);
/*
* For smb2/smb3 open (including create and mkdir) calls