Lines Matching full:metadata

19 #include "dm-clone-metadata.h"
21 #define DM_MSG_PREFIX "clone metadata"
31 /* Min and max dm-clone metadata versions supported */
36  * On-disk metadata layout
70  * In order to track which regions are hydrated during a metadata transaction,
73  * tracks the regions that got hydrated during the current metadata
78  * current metadata transaction and update the metadata accordingly, when we
80  * only commit the metadata of regions that were properly flushed to the
89  * During a metadata commit we scan dmap->dirty_words and dmap->dirty_regions
90  * and update the on-disk metadata accordingly. Thus, we don't have to flush to
95  * metadata commit. Moreover, as dm-bitset also accesses the on-disk bitmap in
101  * inserts significant metadata I/O overhead in dm-clone's I/O path. Also, as
106  * We maintain two dirty bitmap sets. During a metadata commit we atomically
107  * swap the currently used dmap with the unused one. This allows the metadata
117 	/* The metadata block device */
210 	/* Check metadata version */  in sb_check()
214 		DMERR("Clone metadata version %u found, but only versions between %u and %u supported.",  in sb_check()
271  * Low-level metadata handling.
297 /* Save dm-clone metadata in superblock */
309 	/* Save the metadata space_map root */  in __prepare_superblock()
336 		DMERR("Region and/or target size don't match the ones in metadata");  in __open_metadata()
558 		DMERR("Failed to allocate memory for dm-clone metadata");  in dm_clone_metadata_open()
714 	/* Save the metadata in superblock */  in __metadata_commit()
908  * exception is after setting the metadata to read-only mode, using
955 		/* If something went wrong we can neither write nor read the metadata */  in dm_clone_metadata_abort()