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/*
Copyright (C) 1993, 1994 Free Software Foundation
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
The GNU Hurd is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by Michael I. Bushnell. */
#include "priv.h"
#include "fs_S.h"
kern_return_t
diskfs_S_file_lock (struct protid *cred, int flags)
{
error_t err;
if (!cred)
return EOPNOTSUPP;
mutex_lock (&cred->po->np->lock);
err = fshelp_acquire_lock (&cred->po->np->userlock, &cred->po->lock_status,
&cred->po->np->lock, flags);
mutex_unlock (&cred->po->np->lock);
return err;
}
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