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git://sourceware.org/git/lvm2.git
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c6f48b7c1a
Changes: - move device type registration out of "type filter" (filter.c) to a separate and new dev-type.[ch] for common use throughout the code - the structure for keeping the major numbers detected for available device types and available partitioning available is stored in "dev_types" structure now - move common partitioning detection code to dev-type.[ch] as well together with other device-related functions bound to dev_types (see dev-type.h for the interface) The dev-type interface contains all common functions used to detect subsystems/device types, signature/superblock recognition code, type-specific device properties and other common device properties (bound to dev_types), including partitioning support. - add dev_types instance to cmd context as cmd->dev_types for common use - use cmd->dev_types throughout as a central point for providing information about device types
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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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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#include "lib.h"
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#include "filter-composite.h"
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static int _and_p(struct dev_filter *f, struct device *dev)
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{
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struct dev_filter **filters;
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for (filters = (struct dev_filter **) f->private; *filters; ++filters)
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if (!(*filters)->passes_filter(*filters, dev))
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return_0;
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log_debug_devs("Using %s", dev_name(dev));
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return 1;
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}
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static void _composite_destroy(struct dev_filter *f)
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{
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struct dev_filter **filters;
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if (f->use_count)
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log_error(INTERNAL_ERROR "Destroying composite filter while in use %u times.", f->use_count);
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for (filters = (struct dev_filter **) f->private; *filters; ++filters)
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(*filters)->destroy(*filters);
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dm_free(f->private);
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dm_free(f);
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}
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static int _dump(struct dev_filter *f, int merge_existing)
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{
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struct dev_filter **filters;
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for (filters = (struct dev_filter **) f->private; *filters; ++filters)
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if ((*filters)->dump &&
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!(*filters)->dump(*filters, merge_existing))
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return_0;
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return 1;
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}
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static void _wipe(struct dev_filter *f)
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{
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struct dev_filter **filters;
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for (filters = (struct dev_filter **) f->private; *filters; ++filters)
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if ((*filters)->wipe)
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(*filters)->wipe(*filters);
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}
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struct dev_filter *composite_filter_create(int n, struct dev_filter **filters)
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{
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struct dev_filter **filters_copy, *cft;
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if (!filters)
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return_NULL;
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if (!(filters_copy = dm_malloc(sizeof(*filters) * (n + 1)))) {
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log_error("Composite filters allocation failed.");
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return NULL;
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}
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memcpy(filters_copy, filters, sizeof(*filters) * n);
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filters_copy[n] = NULL;
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if (!(cft = dm_zalloc(sizeof(*cft)))) {
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log_error("Composite filters allocation failed.");
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dm_free(filters_copy);
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return NULL;
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}
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cft->passes_filter = _and_p;
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cft->destroy = _composite_destroy;
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cft->dump = _dump;
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cft->wipe = _wipe;
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cft->use_count = 0;
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cft->private = filters_copy;
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return cft;
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}
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