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4059d2219c
The DRBD uses underlying device so code should prefer top
device if duplicate is found.
Patch also introduce
dev_subsystem_part_major and dev_subsytem_name
functions to easily handle all these replication susbystems
and not hardcode md_major call.
See https://bugzilla.redhat.com/show_bug.cgi?id=530881
for full problem description.
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2005 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 "config.h"
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#include <sys/stat.h>
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#ifdef linux
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# define MAJOR(dev) ((dev & 0xfff00) >> 8)
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# define MINOR(dev) ((dev & 0xff) | ((dev >> 12) & 0xfff00))
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# define MKDEV(ma,mi) ((mi & 0xff) | (ma << 8) | ((mi & ~0xff) << 12))
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#else
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# define MAJOR(x) major((x))
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# define MINOR(x) minor((x))
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# define MKDEV(x,y) makedev((x),(y))
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#endif
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struct dev_filter *lvm_type_filter_create(const char *proc,
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const struct config_node *cn);
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void lvm_type_filter_destroy(struct dev_filter *f);
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int md_major(void);
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int blkext_major(void);
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int max_partitions(int major);
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int dev_subsystem_part_major(const struct device *dev);
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const char *dev_subsystem_name(const struct device *dev);
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#endif
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