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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-11-29 01:51:07 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-11-29 01:51:07 -0800 |
| commit | 0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4 (patch) | |
| tree | d2ca69347816c27f9dc352581f5d0fe76811cd49 /drivers/md/persistent-data/dm-space-map-metadata.h | |
| parent | Input: elantech - add resolution query support for v4 hardware (diff) | |
| parent | Linux 3.2-rc3 (diff) | |
| download | linux-dev-0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4.tar.xz linux-dev-0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4.zip | |
Merge commit 'v3.2-rc3' into next
Diffstat (limited to 'drivers/md/persistent-data/dm-space-map-metadata.h')
| -rw-r--r-- | drivers/md/persistent-data/dm-space-map-metadata.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.h b/drivers/md/persistent-data/dm-space-map-metadata.h new file mode 100644 index 000000000000..39bba0801cf2 --- /dev/null +++ b/drivers/md/persistent-data/dm-space-map-metadata.h @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2011 Red Hat, Inc. + * + * This file is released under the GPL. + */ + +#ifndef DM_SPACE_MAP_METADATA_H +#define DM_SPACE_MAP_METADATA_H + +#include "dm-transaction-manager.h" + +/* + * Unfortunately we have to use two-phase construction due to the cycle + * between the tm and sm. + */ +struct dm_space_map *dm_sm_metadata_init(void); + +/* + * Create a fresh space map. + */ +int dm_sm_metadata_create(struct dm_space_map *sm, + struct dm_transaction_manager *tm, + dm_block_t nr_blocks, + dm_block_t superblock); + +/* + * Open from a previously-recorded root. + */ +int dm_sm_metadata_open(struct dm_space_map *sm, + struct dm_transaction_manager *tm, + void *root_le, size_t len); + +#endif /* DM_SPACE_MAP_METADATA_H */ |