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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a159c1ac5f
Supply dm_add_exception as a callback to the read_metadata function. Add a status function ready for a later patch and name the functions consistently. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
46 lines
844 B
C
46 lines
844 B
C
/*
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* Copyright (C) 2001-2002 Sistina Software (UK) Limited.
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* Copyright (C) 2006-2008 Red Hat GmbH
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*
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* This file is released under the GPL.
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*/
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#include "dm-exception-store.h"
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#include <linux/mm.h>
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#include <linux/pagemap.h>
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#include <linux/vmalloc.h>
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#include <linux/slab.h>
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#define DM_MSG_PREFIX "snapshot exception stores"
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int dm_exception_store_init(void)
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{
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int r;
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r = dm_transient_snapshot_init();
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if (r) {
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DMERR("Unable to register transient exception store type.");
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goto transient_fail;
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}
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r = dm_persistent_snapshot_init();
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if (r) {
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DMERR("Unable to register persistent exception store type");
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goto persistent_fail;
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}
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return 0;
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persistent_fail:
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dm_persistent_snapshot_exit();
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transient_fail:
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return r;
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}
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void dm_exception_store_exit(void)
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{
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dm_persistent_snapshot_exit();
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dm_transient_snapshot_exit();
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}
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