ntfs/libntfs/attrib.c

240 			 * Otherwise, we are dealing with a sparse run and we
245 			 * we have sparse runs in uncompressed files as well?
246 			 * - Yes we can, in sparse files! But not necessarily
277 		 * Otherwise, we are dealing with a sparse run and we just
281 		 * we have sparse runs in uncompressed files as well?
282 		 * - Yes we can, in sparse files! But not necessarily size of
340  * @sparse:
351 		const BOOL encrypted, const BOOL sparse,
364 		if (sparse)
369 		if ((data_flags & ATTR_COMPRESSION_MASK) || sparse) {
479 	/* a file may be sparse though its unnamed data is not (cf $UsnJrnl) */
1391 		/* Clear non-sparse region from @cur_vcn to @*ofs. */
1841 		 * attribute to be made temporarily sparse, which
1844 		 * we avoid sparse testing until the data is filled in.
2143 			 * end of the attribute or into an ex-sparse cluster.
5388  * If we are in the first extent, then set/clean sparse bit,
5394 	int sparse, ret = 0;
5404 	/* Update sparse bit, unless this is an intermediate state */
5406 		sparse = (a->flags & ATTR_IS_SPARSE) != const_cpu_to_le16(0);
5408 		sparse = ntfs_rl_sparse(na->rl);
5409 		if (sparse == -1) {
5415 	/* Check whether attribute becomes sparse, unless check is delayed. */
5417 	    && sparse
5465 	/* Attribute no longer sparse. */
5466 	if (!sparse && (a->flags & ATTR_IS_SPARSE) &&
5487 	    && (sparse || (na->data_flags & ATTR_COMPRESSION_MASK))) {
5498 	 * Set FILE_NAME dirty flag, to update sparse bit and
5502 		if (sparse || (na->data_flags & ATTR_COMPRESSION_MASK))
5550 		 * For a file just been made sparse, we will have
5553 		 * Same if the file was sparse and is not any more.
5562 			int sparse;
5566 				 * If attribute was not sparse, we only
5573 			sparse = ntfs_rl_sparse(xrl);
5574 			if (sparse < 0) {
5575 				ntfs_log_error("Could not check whether sparse\n");
5579 			changed = sparse > 0;
5582 				 * If attribute was sparse, the compressed
5585 				 * attribute is still sparse.
5593 				ntfs_log_error("Could not map whole for sparse change\n");
5906  * function updates sparse bit, allocated and compressed size (allocates/frees
5913  * FIXME: This function does not update sparse bit and compressed size correctly
6163 		 * sparse runs instead of real allocation of clusters.