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c50a90c9e6
Composite filter is a filter that can put several filters in one set. This patch adds a switch when creating the composite filter which will enable or disable external device info handles for all the filters the composite filter encompasses. We want to use this external device info for majority of the filters which are in the "lvmetad filter chain" (or the respective part if we're not using lvmetad). Following patches will use the enabled external device handle in concrete filters from the composite filter...
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004 Luca Berra
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* Copyright (C) 2004-2013 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _LVM_FILTER_H
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#define _LVM_FILTER_H
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#include "dev-cache.h"
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#include "dev-type.h"
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struct dev_filter *composite_filter_create(int n, int use_dev_ext_info, struct dev_filter **filters);
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struct dev_filter *lvm_type_filter_create(struct dev_types *dt);
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struct dev_filter *md_filter_create(struct dev_types *dt);
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struct dev_filter *mpath_filter_create(struct dev_types *dt);
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struct dev_filter *partitioned_filter_create(struct dev_types *dt);
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struct dev_filter *persistent_filter_create(struct dev_types *dt,
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struct dev_filter *f,
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const char *file);
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struct dev_filter *sysfs_filter_create(void);
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/*
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* patterns must be an array of strings of the form:
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* [ra]<sep><regex><sep>, eg,
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* r/cdrom/ - reject cdroms
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* a|loop/[0-4]| - accept loops 0 to 4
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* r|.*| - reject everything else
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*/
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struct dev_filter *regex_filter_create(const struct dm_config_value *patterns);
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typedef enum {
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FILTER_MODE_NO_LVMETAD,
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FILTER_MODE_PRE_LVMETAD,
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FILTER_MODE_POST_LVMETAD
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} filter_mode_t;
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struct dev_filter *usable_filter_create(struct dev_types *dt, filter_mode_t mode);
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int persistent_filter_load(struct dev_filter *f, struct dm_config_tree **cft_out);
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#endif /* _LVM_FILTER_H */
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