9 #include "dm-exception-store.h"
22  * Implementation of the store for non-persistent snapshots.
29 static void transient_dtr(struct dm_exception_store *store)  in transient_dtr()  argument
31 	kfree(store->context);  in transient_dtr()
34 static int transient_read_metadata(struct dm_exception_store *store,  in transient_read_metadata()  argument
42 static int transient_prepare_exception(struct dm_exception_store *store,  in transient_prepare_exception()  argument
45 	struct transient_c *tc = store->context;  in transient_prepare_exception()
46 	sector_t size = get_dev_size(dm_snap_cow(store->snap)->bdev);  in transient_prepare_exception()
48 	if (size < (tc->next_free + store->chunk_size))  in transient_prepare_exception()
51 	e->new_chunk = sector_to_chunk(store, tc->next_free);  in transient_prepare_exception()
52 	tc->next_free += store->chunk_size;  in transient_prepare_exception()
57 static void transient_commit_exception(struct dm_exception_store *store,  in transient_commit_exception()  argument
66 static void transient_usage(struct dm_exception_store *store,  in transient_usage()  argument
71 	*sectors_allocated = ((struct transient_c *) store->context)->next_free;  in transient_usage()
72 	*total_sectors = get_dev_size(dm_snap_cow(store->snap)->bdev);  in transient_usage()
76 static int transient_ctr(struct dm_exception_store *store, char *options)  in transient_ctr()  argument
85 	store->context = tc;  in transient_ctr()
90 static unsigned int transient_status(struct dm_exception_store *store,  in transient_status()  argument
100 		DMEMIT(" N %llu", (unsigned long long)store->chunk_size);  in transient_status()
140 		DMWARN("Unable to register transient exception store type");  in dm_transient_snapshot_init()
146 		DMWARN("Unable to register old-style transient exception store type");  in dm_transient_snapshot_init()