dm.c (436d41087d047b61f8ab0604dc74fff3240a8933) dm.c (93c534aefb906824d71ea779ed0c7f1573843f4e)
1/*
2 * Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
3 * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
4 *
5 * This file is released under the GPL.
6 */
7
8#include "dm.h"

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961 }
962}
963
964/*
965 * Swap in a new table (destroying old one).
966 */
967int dm_swap_table(struct mapped_device *md, struct dm_table *table)
968{
1/*
2 * Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
3 * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
4 *
5 * This file is released under the GPL.
6 */
7
8#include "dm.h"

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961 }
962}
963
964/*
965 * Swap in a new table (destroying old one).
966 */
967int dm_swap_table(struct mapped_device *md, struct dm_table *table)
968{
969 int r;
969 int r = -EINVAL;
970
971 down_write(&md->lock);
972
973 /* device must be suspended */
970
971 down_write(&md->lock);
972
973 /* device must be suspended */
974 if (!test_bit(DMF_SUSPENDED, &md->flags)) {
975 up_write(&md->lock);
976 return -EPERM;
977 }
974 if (!test_bit(DMF_SUSPENDED, &md->flags))
975 goto out;
978
979 __unbind(md);
980 r = __bind(md, table);
976
977 __unbind(md);
978 r = __bind(md, table);
981 if (r)
982 return r;
983
979
980out:
984 up_write(&md->lock);
981 up_write(&md->lock);
985 return 0;
982 return r;
986}
987
988/*
989 * Functions to lock and unlock any filesystem running on the
990 * device.
991 */
992static int __lock_fs(struct mapped_device *md)
993{

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984
985/*
986 * Functions to lock and unlock any filesystem running on the
987 * device.
988 */
989static int __lock_fs(struct mapped_device *md)
990{

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