forge/linux-uconsole
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions

CIFS: Fix trace command logging for SMB2 reads and writes

Browse source 
commit 7d42e72fe8 upstream.

Currently we log success once we send an async IO request to
the server. Instead we need to analyse a response and then log
success or failure for a particular command. Also fix argument
list for read logging.

Cc: <stable@vger.kernel.org> # 4.18
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pavel Shilovsky 2019-01-25 11:38:53 -08:00 • committed by Greg Kroah-Hartman
commit 6e7045ec33
1 changed files with 30 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

46
fs/cifs/smb2pdu.c
View file

@ -3127,8 +3127,17 @@ smb2_readv_callback(struct mid_q_entry *mid)
rdata->mr = NULL;
}
#endif
if (rdata->result)
if (rdata->result) {
cifs_stats_fail_inc(tcon, SMB2_READ_HE);
trace_smb3_read_err(0 /* xid */,
rdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid, rdata->offset,
rdata->bytes, rdata->result);
} else
trace_smb3_read_done(0 /* xid */,
rdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid,
rdata->offset, rdata->got_bytes);
queue_work(cifsiod_wq, &rdata->work);
DeleteMidQEntry(mid);
@ -3203,13 +3212,11 @@ smb2_async_readv(struct cifs_readdata *rdata)
if (rc) {
kref_put(&rdata->refcount, cifs_readdata_release);
cifs_stats_fail_inc(io_parms.tcon, SMB2_READ_HE);
trace_smb3_read_err(rc, 0 /* xid */, io_parms.persistent_fid,
io_parms.tcon->tid, io_parms.tcon->ses->Suid,
io_parms.offset, io_parms.length);
} else
trace_smb3_read_done(0 /* xid */, io_parms.persistent_fid,
io_parms.tcon->tid, io_parms.tcon->ses->Suid,
io_parms.offset, io_parms.length);
trace_smb3_read_err(0 /* xid */, io_parms.persistent_fid,
io_parms.tcon->tid,
io_parms.tcon->ses->Suid,
io_parms.offset, io_parms.length, rc);
}
cifs_small_buf_release(buf);
return rc;
@ -3253,10 +3260,11 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
if (rc != -ENODATA) {
cifs_stats_fail_inc(io_parms->tcon, SMB2_READ_HE);
cifs_dbg(VFS, "Send error in read = %d\n", rc);
trace_smb3_read_err(xid, req->PersistentFileId,
io_parms->tcon->tid, ses->Suid,
io_parms->offset, io_parms->length,
rc);
}
trace_smb3_read_err(rc, xid, req->PersistentFileId,
io_parms->tcon->tid, ses->Suid,
io_parms->offset, io_parms->length);
free_rsp_buf(resp_buftype, rsp_iov.iov_base);
return rc == -ENODATA ? 0 : rc;
} else
@ -3342,8 +3350,17 @@ smb2_writev_callback(struct mid_q_entry *mid)
wdata->mr = NULL;
}
#endif
if (wdata->result)
if (wdata->result) {
cifs_stats_fail_inc(tcon, SMB2_WRITE_HE);
trace_smb3_write_err(0 /* no xid */,
wdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid, wdata->offset,
wdata->bytes, wdata->result);
} else
trace_smb3_write_done(0 /* no xid */,
wdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid,
wdata->offset, wdata->bytes);
queue_work(cifsiod_wq, &wdata->work);
DeleteMidQEntry(mid);
@ -3485,10 +3502,7 @@ smb2_async_writev(struct cifs_writedata *wdata,
wdata->bytes, rc);
kref_put(&wdata->refcount, release);
cifs_stats_fail_inc(tcon, SMB2_WRITE_HE);
} else
trace_smb3_write_done(0 /* no xid */, req->PersistentFileId,
tcon->tid, tcon->ses->Suid, wdata->offset,
wdata->bytes);
}
async_writev_out:
cifs_small_buf_release(req);