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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
78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
/*
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* Copyright (C) 2004 Luca Berra
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* Copyright (C) 2004-2006 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-md.h"
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#ifdef linux
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static int _ignore_md(struct dev_filter *f __attribute__((unused)),
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struct device *dev)
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{
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int ret;
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if (!md_filtering())
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return 1;
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ret = dev_is_md(dev, NULL);
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if (ret == 1) {
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log_debug_devs("%s: Skipping md component device", dev_name(dev));
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return 0;
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}
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if (ret < 0) {
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log_debug_devs("%s: Skipping: error in md component detection",
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dev_name(dev));
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return 0;
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}
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return 1;
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}
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static void _destroy(struct dev_filter *f)
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{
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if (f->use_count)
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log_error(INTERNAL_ERROR "Destroying md filter while in use %u times.", f->use_count);
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dm_free(f);
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}
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struct dev_filter *md_filter_create(struct dev_types *dt)
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{
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struct dev_filter *f;
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if (!(f = dm_zalloc(sizeof(*f)))) {
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log_error("md filter allocation failed");
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return NULL;
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}
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f->passes_filter = _ignore_md;
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f->destroy = _destroy;
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f->use_count = 0;
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f->private = dt;
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return f;
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}
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#else
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struct dev_filter *md_filter_create(struct dev_types *dt)
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{
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return NULL;
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}
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#endif
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