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lvm2/tools/vgmknodes.c
David Teigland 9c6c55c314 process_each_lv: add check_single_lv function
The new check_single_lv() function is called prior to the
existing process_single_lv().  If the check function returns 0,
the LV will not be processed.

The check_single_lv function is meant to be a standard method
to validate the combination of specific command + specific LV,
and decide if the combination is allowed.  The check_single
function can be used by anything that calls process_each_lv.

As commands are migrated to take advantage of command
definitions, each command definition gets its own entry
point which calls process_each for itself, passing a
pair of check_single/process_single functions which can
be specific to the narrowly defined command def.
2017-02-13 08:20:10 -06:00

38 lines
1.1 KiB
C

/*
* Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "tools.h"
static int _vgmknodes_single(struct cmd_context *cmd, struct logical_volume *lv,
struct processing_handle *handle __attribute__((unused)))
{
if (arg_is_set(cmd, refresh_ARG) && lv_is_visible(lv))
if (!lv_refresh(cmd, lv))
return_ECMD_FAILED;
if (!lv_mknodes(cmd, lv))
return_ECMD_FAILED;
return ECMD_PROCESSED;
}
int vgmknodes(struct cmd_context *cmd, int argc, char **argv)
{
if (!lv_mknodes(cmd, NULL))
return_ECMD_FAILED;
return process_each_lv(cmd, argc, argv, NULL, NULL, LCK_VG_READ, NULL, NULL, &_vgmknodes_single);
}