57  * Align a sequential zone write pointer to chunk_block.
59 static int dmz_reclaim_align_wp(struct dmz_reclaim *zrc, struct dm_zone *zone,  in dmz_reclaim_align_wp()  argument
63 	struct dmz_dev *dev = zone->dev;  in dmz_reclaim_align_wp()
64 	sector_t wp_block = zone->wp_block;  in dmz_reclaim_align_wp()
80 				   dmz_start_sect(zmd, zone) + dmz_blk2sect(wp_block),  in dmz_reclaim_align_wp()
84 			    "Align zone %u wp %llu to %llu (wp+%u) blocks failed %d",  in dmz_reclaim_align_wp()
85 			    zone->id, (unsigned long long)wp_block,  in dmz_reclaim_align_wp()
91 	zone->wp_block = block;  in dmz_reclaim_align_wp()
148 		/* Get a valid region from the source zone */  in dmz_reclaim_copy()
155 		 * If we are writing in a sequential zone, we must make sure  in dmz_reclaim_copy()
193  * Move valid blocks of dzone buffer zone into dzone (after its write pointer)
194  * and free the buffer zone.
203 	DMDEBUG("(%s/%u): Chunk %u, move buf zone %u (weight %u) to data zone %u (weight %u)",  in dmz_reclaim_buf()
208 	/* Flush data zone into the buffer zone */  in dmz_reclaim_buf()
218 		/* Free the buffer zone */  in dmz_reclaim_buf()
233  * Merge valid blocks of dzone into its buffer zone and free dzone.
242 	DMDEBUG("(%s/%u): Chunk %u, move data zone %u (weight %u) to buf zone %u (weight %u)",  in dmz_reclaim_seq_data()
247 	/* Flush data zone into the buffer zone */  in dmz_reclaim_seq_data()
258 		 * Free the data zone and remap the chunk to  in dmz_reclaim_seq_data()
259 		 * the buffer zone.  in dmz_reclaim_seq_data()
277  * Move valid blocks of the random data zone dzone into a free sequential zone.
278  * Once blocks are moved, remap the zone chunk to the sequential zone.
288 	/* Get a free random or sequential zone */  in dmz_reclaim_rnd_data()
301 	DMDEBUG("(%s/%u): Chunk %u, move %s zone %u (weight %u) to %s zone %u",  in dmz_reclaim_rnd_data()
307 	/* Flush the random data zone into the sequential zone */  in dmz_reclaim_rnd_data()
317 		/* Free the sequential zone */  in dmz_reclaim_rnd_data()
322 		/* Free the data zone and remap the chunk */  in dmz_reclaim_rnd_data()
338  * Reclaim an empty zone.
362  * Find a candidate zone for reclaim and process it.
372 	/* Get a data zone */  in dmz_do_reclaim()
376 		DMDEBUG("(%s/%u): No zone found to reclaim",  in dmz_do_reclaim()
385 			/* Empty zone */  in dmz_do_reclaim()
390 			 * Reclaim the random data zone by moving its  in dmz_do_reclaim()
391 			 * valid data blocks to a free sequential zone.  in dmz_do_reclaim()
405 			 * The buffer zone is empty or its valid blocks are  in dmz_do_reclaim()
406 			 * after the data zone write pointer.  in dmz_do_reclaim()
412 			 * Reclaim the data zone by merging it into the  in dmz_do_reclaim()
413 			 * buffer zone so that the buffer zone itself can  in dmz_do_reclaim()
422 			DMDEBUG("(%s/%u): reclaim zone %u interrupted",  in dmz_do_reclaim()
426 			DMDEBUG("(%s/%u): Failed to reclaim zone %u, err %d",  in dmz_do_reclaim()
435 		DMDEBUG("(%s/%u): Metadata flush for zone %u failed, err %d",  in dmz_do_reclaim()
440 	DMDEBUG("(%s/%u): Reclaimed zone %u in %u ms",  in dmz_do_reclaim()
519 	 * We need to start reclaiming random zones: set up zone copy  in dmz_reclaim_work()
528 		/* Busy but we still have some random zone: throttle */  in dmz_reclaim_work()