37  * ntfs_cluster_free_from_rl_nolock - free clusters from runlist
38  * @vol:	mounted ntfs volume on which to free the clusters
39  * @rl:		runlist describing the clusters to free
41  * Free all the clusters described by the runlist @rl on the volume @vol.  In
42  * the case of an error being returned, at least some of the clusters were not
73  * ntfs_cluster_alloc - allocate clusters on an ntfs volume
74  * @vol:	mounted ntfs volume on which to allocate the clusters
76  * @count:	number of clusters to allocate
77  * @start_lcn:	starting lcn at which to allocate the clusters (or -1 if none)
78  * @zone:	zone from which to allocate the clusters
81  * Allocate @count clusters preferably starting at cluster @start_lcn or at the
83  * @vol. @zone is either DATA_ZONE for allocation of normal clusters or
84  * MFT_ZONE for allocation of clusters for the master file table, i.e. the
90  * If @is_extension is 'true', the caller is allocating clusters to extend an
91  * attribute and if it is 'false', the caller is allocating clusters to fill a
153 	s64 clusters;  in ntfs_cluster_alloc()  local
252 	/* Loop until all clusters are allocated, i.e. clusters == 0. */  in ntfs_cluster_alloc()
253 	clusters = count;  in ntfs_cluster_alloc()
267 		/* Loop until we run out of free clusters. */  in ntfs_cluster_alloc()
414 			if (!--clusters) {  in ntfs_cluster_alloc()
697 			ntfs_debug("No free clusters left, going to out.");  in ntfs_cluster_alloc()
758 	ntfs_error(vol->sb, "Failed to allocate clusters, aborting "  in ntfs_cluster_alloc()
767 					"clusters.",  in ntfs_cluster_alloc()
769 					(unsigned long long)(count - clusters));  in ntfs_cluster_alloc()
770 		/* Deallocate all allocated clusters. */  in ntfs_cluster_alloc()
790  * __ntfs_cluster_free - free clusters on an ntfs volume
791  * @ni:		ntfs inode whose runlist describes the clusters to free
792  * @start_vcn:	vcn in the runlist of @ni at which to start freeing clusters
793  * @count:	number of clusters to free or -1 for all clusters
797  * Free @count clusters starting at the cluster @start_vcn in the runlist
800  * If @count is -1, all clusters from @start_vcn to the end of the runlist are
801  * deallocated.  Thus, to completely free all clusters in a runlist, use
827  * Return the number of deallocated clusters (not counting sparse ones) on
899 	/* The number of clusters in this run that need freeing. */  in __ntfs_cluster_free()
905 		/* Do the actual freeing of the clusters in this run. */  in __ntfs_cluster_free()
914 		/* We have freed @to_free real clusters. */  in __ntfs_cluster_free()
917 	/* Go to the next run and adjust the number of clusters left to free. */  in __ntfs_cluster_free()
922 	/* Keep track of the total "freed" clusters, including sparse ones. */  in __ntfs_cluster_free()
956 		/* The number of clusters in this run that need freeing. */  in __ntfs_cluster_free()
962 			/* Do the actual freeing of the clusters in the run. */  in __ntfs_cluster_free()
971 			/* We have freed @to_free real clusters. */  in __ntfs_cluster_free()
974 		/* Adjust the number of clusters left to free. */  in __ntfs_cluster_free()
978 		/* Update the total done clusters. */  in __ntfs_cluster_free()
986 	/* We are done.  Return the number of actually freed clusters. */  in __ntfs_cluster_free()
992 	/* If no real clusters were freed, no need to rollback. */  in __ntfs_cluster_free()