mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-06 10:00:40 +03:00
filters: check for mpath before opening devs
Split out the partitioned device filter that needs to open the device and move the multipath filter in front of it. When a device is multipathed, sending I/O to the underlying paths may cause problems, the most obvious being I/O errors visible to lvm if a path is down. Revert the incorrect <backtrace> messages added when a device doesn't pass a filter. Log each filter initialisation to show sequence. Avoid duplicate 'Using $device' debug messages.
This commit is contained in:
parent
0da72743ca
commit
80bcdb93ff
@ -1,5 +1,8 @@
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Version 2.02.101 -
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===================================
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Move mpath device filter before partitioned filter (which opens devices).
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Split partitioned filter out of lvm_type filter.
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Merge filter*.h into a single filter.h.
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Require confirmation for vgchange -c when no VGs listed explicitly.
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Also skip /var and /var/log by default in blkdeactivate when unmounting.
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Add support for bind mounts in blkdeactivate.
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@ -17,12 +17,6 @@
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@top_srcdir@/lib/device/dev-type.h
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@top_srcdir@/lib/device/device.h
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@top_srcdir@/lib/display/display.h
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@top_srcdir@/lib/filters/filter-composite.h
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@top_srcdir@/lib/filters/filter-md.h
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@top_srcdir@/lib/filters/filter-mpath.h
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@top_srcdir@/lib/filters/filter-persistent.h
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@top_srcdir@/lib/filters/filter-regex.h
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@top_srcdir@/lib/filters/filter-sysfs.h
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@top_srcdir@/lib/filters/filter.h
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@top_srcdir@/lib/format1/format1.h
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@top_srcdir@/lib/format_pool/format_pool.h
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@ -66,7 +66,8 @@ SOURCES =\
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filters/filter-sysfs.c \
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filters/filter-md.c \
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filters/filter-mpath.c \
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filters/filter.c \
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filters/filter-partitioned.c \
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filters/filter-type.c \
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format_text/archive.c \
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format_text/archiver.c \
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format_text/export.c \
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@ -20,12 +20,6 @@
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#include "lvm-string.h"
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#include "activate.h"
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#include "filter.h"
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#include "filter-composite.h"
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#include "filter-md.h"
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#include "filter-mpath.h"
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#include "filter-persistent.h"
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#include "filter-regex.h"
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#include "filter-sysfs.h"
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#include "label.h"
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#include "lvm-file.h"
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#include "format-text.h"
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@ -35,7 +29,6 @@
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#include "segtype.h"
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#include "lvmcache.h"
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#include "lvmetad.h"
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#include "dev-cache.h"
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#include "archiver.h"
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#ifdef HAVE_LIBDL
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@ -824,7 +817,7 @@ static int _init_dev_cache(struct cmd_context *cmd)
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return 1;
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}
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#define MAX_FILTERS 5
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#define MAX_FILTERS 6
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static struct dev_filter *_init_filter_components(struct cmd_context *cmd)
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{
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@ -853,7 +846,6 @@ static struct dev_filter *_init_filter_components(struct cmd_context *cmd)
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if (!(cn = find_config_tree_node(cmd, devices_filter_CFG, NULL)))
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log_very_verbose("devices/filter not found in config file: "
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"no regex filter installed");
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else if (!(filters[nr_filt] = regex_filter_create(cn->v))) {
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log_error("Failed to create regex device filter");
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goto bad;
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@ -867,6 +859,19 @@ static struct dev_filter *_init_filter_components(struct cmd_context *cmd)
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}
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nr_filt++;
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/* mpath component filter. Optional, non-critical. */
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if (find_config_tree_bool(cmd, devices_multipath_component_detection_CFG, NULL)) {
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if ((filters[nr_filt] = mpath_filter_create(cmd->dev_types)))
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nr_filt++;
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}
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/* partitioned device filter. Required. */
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if (!(filters[nr_filt] = partitioned_filter_create(cmd->dev_types))) {
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log_error("Failed to create partitioned device filter");
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goto bad;
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}
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nr_filt++;
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/* md component filter. Optional, non-critical. */
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if (find_config_tree_bool(cmd, devices_md_component_detection_CFG, NULL)) {
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init_md_filtering(1);
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@ -874,12 +879,6 @@ static struct dev_filter *_init_filter_components(struct cmd_context *cmd)
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nr_filt++;
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}
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/* mpath component filter. Optional, non-critical. */
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if (find_config_tree_bool(cmd, devices_multipath_component_detection_CFG, NULL)) {
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if ((filters[nr_filt] = mpath_filter_create(cmd->dev_types)))
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nr_filt++;
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}
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/* Only build a composite filter if we really need it. */
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if (nr_filt == 1)
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return filters[0];
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@ -888,6 +887,7 @@ static struct dev_filter *_init_filter_components(struct cmd_context *cmd)
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goto_bad;
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return composite;
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bad:
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while (--nr_filt >= 0)
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filters[nr_filt]->destroy(filters[nr_filt]);
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@ -14,10 +14,8 @@
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*/
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#include "lib.h"
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#include "dev-cache.h"
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#include "lvm-types.h"
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#include "btree.h"
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#include "filter.h"
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#include "config.h"
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#include "toolcontext.h"
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@ -923,8 +921,11 @@ struct device *dev_cache_get(const char *name, struct dev_filter *f)
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}
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}
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return (d && (!f || (d->flags & DEV_REGULAR) ||
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f->passes_filter(f, d))) ? d : NULL;
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if (!d || (f && !(d->flags & DEV_REGULAR) && !(f->passes_filter(f, d))))
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return NULL;
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log_debug_devs("Using %s", dev_name(d));
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return d;
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}
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static struct device *_dev_cache_seek_devt(dev_t dev)
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@ -1007,8 +1008,10 @@ struct device *dev_iter_get(struct dev_iter *iter)
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while (iter->current) {
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struct device *d = _iter_next(iter);
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if (!iter->filter || (d->flags & DEV_REGULAR) ||
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iter->filter->passes_filter(iter->filter, d))
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iter->filter->passes_filter(iter->filter, d)) {
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log_debug_devs("Using %s", dev_name(d));
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return d;
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}
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}
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return NULL;
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@ -14,7 +14,7 @@
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*/
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#include "lib.h"
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#include "filter-composite.h"
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#include "filter.h"
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static int _and_p(struct dev_filter *f, struct device *dev)
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{
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@ -22,9 +22,7 @@ static int _and_p(struct dev_filter *f, struct device *dev)
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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 0; /* No 'stack': a filter, not an error. */
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return 1;
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}
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@ -92,5 +90,7 @@ struct dev_filter *composite_filter_create(int n, struct dev_filter **filters)
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cft->use_count = 0;
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cft->private = filters_copy;
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log_debug_devs("Composite filter initialised.");
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return cft;
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}
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@ -1,23 +0,0 @@
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/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004 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_COMPOSITE_H
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#define _LVM_FILTER_COMPOSITE_H
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#include "dev-cache.h"
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struct dev_filter *composite_filter_create(int n, struct dev_filter **filters);
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#endif
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@ -14,7 +14,7 @@
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*/
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#include "lib.h"
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#include "filter-md.h"
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#include "filter.h"
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#ifdef linux
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@ -64,6 +64,8 @@ struct dev_filter *md_filter_create(struct dev_types *dt)
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f->use_count = 0;
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f->private = dt;
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log_debug_devs("MD filter initialised.");
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return f;
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}
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@ -1,24 +0,0 @@
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/*
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* Copyright (C) 2004 Luca Berra
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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_MD_H
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#define _LVM_FILTER_MD_H
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#include "dev-cache.h"
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#include "dev-type.h"
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struct dev_filter *md_filter_create(struct dev_types *dt);
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#endif
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@ -13,7 +13,7 @@
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*/
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#include "lib.h"
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#include "filter-mpath.h"
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#include "filter.h"
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#include "activate.h"
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#ifdef linux
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@ -228,6 +228,8 @@ struct dev_filter *mpath_filter_create(struct dev_types *dt)
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f->use_count = 0;
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f->private = dt;
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log_debug_devs("mpath filter initialised.");
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return f;
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}
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@ -1,24 +0,0 @@
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/*
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* Copyright (C) 2011 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_MPATH_H
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#define _LVM_FILTER_MPATH_H
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#include "dev-cache.h"
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#include "dev-type.h"
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struct dev_filter *mpath_filter_create(struct dev_types *dt);
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#endif
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83
lib/filters/filter-partitioned.c
Normal file
83
lib/filters/filter-partitioned.c
Normal file
@ -0,0 +1,83 @@
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/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2012 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.h"
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static int _passes_partitioned_filter(struct dev_filter *f, struct device *dev)
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{
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struct dev_types *dt = (struct dev_types *) f->private;
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const char *name = dev_name(dev);
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int ret = 0;
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uint64_t size;
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/* Check it's accessible */
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if (!dev_open_readonly_quiet(dev)) {
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log_debug_devs("%s: Skipping: open failed", name);
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return 0;
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}
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/* Check it's not too small */
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if (!dev_get_size(dev, &size)) {
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log_debug_devs("%s: Skipping: dev_get_size failed", name);
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goto out;
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}
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if (size < pv_min_size()) {
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log_debug_devs("%s: Skipping: Too small to hold a PV", name);
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goto out;
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}
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if (dev_is_partitioned(dt, dev)) {
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log_debug_devs("%s: Skipping: Partition table signature found",
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name);
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goto out;
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}
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ret = 1;
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out:
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if (!dev_close(dev))
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stack;
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return ret;
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}
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static void _partitioned_filter_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 partitioned 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 *partitioned_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(struct dev_filter)))) {
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log_error("Partitioned filter allocation failed");
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return NULL;
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}
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f->passes_filter = _passes_partitioned_filter;
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f->destroy = _partitioned_filter_destroy;
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f->use_count = 0;
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f->private = dt;
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log_debug_devs("Partitioned filter initialised.");
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return f;
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}
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@ -14,7 +14,7 @@
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*/
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#include "lib.h"
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#include "filter-persistent.h"
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#include "filter.h"
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#include "config.h"
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#include "lvm-file.h"
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#include "activate.h"
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@ -366,6 +366,8 @@ struct dev_filter *persistent_filter_create(struct dev_types *dt,
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f->wipe = _persistent_filter_wipe;
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f->dump = _persistent_filter_dump;
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log_debug_devs("Persistent filter initialised.");
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return f;
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bad:
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|
@ -1,28 +0,0 @@
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/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
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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,
|
||||
* 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,
|
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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_PERSISTENT_H
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#define _LVM_FILTER_PERSISTENT_H
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#include "dev-cache.h"
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#include "dev-type.h"
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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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int persistent_filter_load(struct dev_filter *f, struct dm_config_tree **cft_out);
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#endif
|
@ -14,7 +14,7 @@
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*/
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#include "lib.h"
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#include "filter-regex.h"
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#include "filter.h"
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struct rfilter {
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struct dm_pool *mem;
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@ -212,6 +212,9 @@ struct dev_filter *regex_filter_create(const struct dm_config_value *patterns)
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f->destroy = _regex_destroy;
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f->use_count = 0;
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f->private = rf;
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log_debug_devs("Regex filter initialised.");
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return f;
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bad:
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|
@ -1,31 +0,0 @@
|
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/*
|
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
||||
* Copyright (C) 2004 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
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*/
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|
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#ifndef _LVM_FILTER_REGEX_H
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#define _LVM_FILTER_REGEX_H
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|
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#include "dev-cache.h"
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|
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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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|
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struct dev_filter *regex_filter_create(const struct dm_config_value *patterns);
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|
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#endif
|
@ -13,7 +13,7 @@
|
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*/
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|
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#include "lib.h"
|
||||
#include "filter-sysfs.h"
|
||||
#include "filter.h"
|
||||
|
||||
#ifdef linux
|
||||
|
||||
@ -324,6 +324,9 @@ struct dev_filter *sysfs_filter_create(void)
|
||||
f->destroy = _destroy;
|
||||
f->use_count = 0;
|
||||
f->private = ds;
|
||||
|
||||
log_debug_devs("Sysfs filter initialised.");
|
||||
|
||||
return f;
|
||||
|
||||
bad:
|
||||
|
@ -1,22 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2004 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef _LVM_FILTER_SYSFS_H
|
||||
#define _LVM_FILTER_SYSFS_H
|
||||
|
||||
#include "dev-cache.h"
|
||||
|
||||
struct dev_filter *sysfs_filter_create(void);
|
||||
|
||||
#endif
|
@ -20,8 +20,6 @@ static int _passes_lvm_type_device_filter(struct dev_filter *f, struct device *d
|
||||
{
|
||||
struct dev_types *dt = (struct dev_types *) f->private;
|
||||
const char *name = dev_name(dev);
|
||||
int ret = 0;
|
||||
uint64_t size;
|
||||
|
||||
/* Is this a recognised device type? */
|
||||
if (!dt->dev_type_array[MAJOR(dev->dev)].max_partitions) {
|
||||
@ -30,36 +28,7 @@ static int _passes_lvm_type_device_filter(struct dev_filter *f, struct device *d
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Check it's accessible */
|
||||
if (!dev_open_readonly_quiet(dev)) {
|
||||
log_debug_devs("%s: Skipping: open failed", name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Check it's not too small */
|
||||
if (!dev_get_size(dev, &size)) {
|
||||
log_debug_devs("%s: Skipping: dev_get_size failed", name);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (size < pv_min_size()) {
|
||||
log_debug_devs("%s: Skipping: Too small to hold a PV", name);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (dev_is_partitioned(dt, dev)) {
|
||||
log_debug_devs("%s: Skipping: Partition table signature found",
|
||||
name);
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = 1;
|
||||
|
||||
out:
|
||||
if (!dev_close(dev))
|
||||
stack;
|
||||
|
||||
return ret;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void _lvm_type_filter_destroy(struct dev_filter *f)
|
||||
@ -84,5 +53,7 @@ struct dev_filter *lvm_type_filter_create(struct dev_types *dt)
|
||||
f->use_count = 0;
|
||||
f->private = dt;
|
||||
|
||||
log_debug_devs("LVM type filter initialised.");
|
||||
|
||||
return f;
|
||||
}
|
@ -1,6 +1,7 @@
|
||||
/*
|
||||
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
||||
* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
|
||||
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
||||
* Copyright (C) 2004 Luca Berra
|
||||
* Copyright (C) 2004-2013 Red Hat, Inc. All rights reserved.
|
||||
*
|
||||
* This file is part of LVM2.
|
||||
*
|
||||
@ -19,6 +20,26 @@
|
||||
#include "dev-cache.h"
|
||||
#include "dev-type.h"
|
||||
|
||||
struct dev_filter *composite_filter_create(int n, struct dev_filter **filters);
|
||||
struct dev_filter *lvm_type_filter_create(struct dev_types *dt);
|
||||
struct dev_filter *md_filter_create(struct dev_types *dt);
|
||||
struct dev_filter *mpath_filter_create(struct dev_types *dt);
|
||||
struct dev_filter *partitioned_filter_create(struct dev_types *dt);
|
||||
struct dev_filter *persistent_filter_create(struct dev_types *dt,
|
||||
struct dev_filter *f,
|
||||
const char *file);
|
||||
struct dev_filter *sysfs_filter_create(void);
|
||||
|
||||
#endif
|
||||
/*
|
||||
* patterns must be an array of strings of the form:
|
||||
* [ra]<sep><regex><sep>, eg,
|
||||
* r/cdrom/ - reject cdroms
|
||||
* a|loop/[0-4]| - accept loops 0 to 4
|
||||
* r|.*| - reject everything else
|
||||
*/
|
||||
|
||||
struct dev_filter *regex_filter_create(const struct dm_config_value *patterns);
|
||||
|
||||
int persistent_filter_load(struct dev_filter *f, struct dm_config_tree **cft_out);
|
||||
|
||||
#endif /* _LVM_FILTER_H */
|
||||
|
@ -36,10 +36,6 @@
|
||||
#include "device.h"
|
||||
#include "display.h"
|
||||
#include "errors.h"
|
||||
#include "filter.h"
|
||||
#include "filter-composite.h"
|
||||
#include "filter-persistent.h"
|
||||
#include "filter-regex.h"
|
||||
#include "metadata-exported.h"
|
||||
#include "locking.h"
|
||||
#include "lvm-exec.h"
|
||||
|
Loading…
Reference in New Issue
Block a user