From 16d74144026b92f5d3f4b229730ed364f4729545 Mon Sep 17 00:00:00 2001 From: "Michael I. Bushnell" Date: Thu, 3 Feb 1994 20:09:05 +0000 Subject: Initial revision --- libdiskfs/io-rel-conch.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 libdiskfs/io-rel-conch.c (limited to 'libdiskfs/io-rel-conch.c') diff --git a/libdiskfs/io-rel-conch.c b/libdiskfs/io-rel-conch.c new file mode 100644 index 00000000..6c9ee879 --- /dev/null +++ b/libdiskfs/io-rel-conch.c @@ -0,0 +1,44 @@ +/* + Copyright (C) 1994 Free Software Foundation + + This program 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. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "priv.h" + +/* Implement io_release_conch as described in . */ +error_t +S_io_release_conch (struct protid *cred) +{ + struct node *np; + int error = 0; + + if (!cred) + return EOPNOTSUPP; + + np = cred->po->np; + mutex_lock (&np->lock); + if (!cred->mapped) + { + mutex_unlock (&np->lock); + return EINVAL; + } + + np = cred->po->np; + + ioserver_handle_io_release_conch (&ip->i_conch, cred); + + mutex_unlock (&ip->i_toplock); + return 0; +} -- cgit v1.2.3