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5f102b3421
An idea from Zdenek for better ensuring valid hints by invalidating them when pvscan --cache <device> sees a new PV, which is a case where we know that hints should be invalidated. This is triggered from systemd/udev logic, and there may be some cases where it would invalidate hints that the existing methods wouldn't detect.
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
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* Copyright (C) 2004-2018 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _LVM_HINTS_H
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#define _LVM_HINTS_H
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struct hint {
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struct dm_list list;
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char name[PATH_MAX];
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char pvid[ID_LEN + 1];
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char vgname[NAME_LEN];
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dev_t devt;
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unsigned chosen:1; /* this hint's dev was chosen for scanning */
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};
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int write_hint_file(struct cmd_context *cmd, int newhints);
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void clear_hint_file(struct cmd_context *cmd);
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void invalidate_hints(struct cmd_context *cmd);
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int get_hints(struct cmd_context *cmd, struct dm_list *hints, int *newhints,
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struct dm_list *devs_in, struct dm_list *devs_out);
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int validate_hints(struct cmd_context *cmd, struct dm_list *hints);
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void hints_exit(void);
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#endif
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