xfs: rename xfs_zone_gc_iter_next to xfs_zone_gc_iter_irec

This function returns the current iterator position, which makes the
_next postfix a bit misleading.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hans Holmberg <hans.holmberg@wdc.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

Author: Christoph Hellwig

fs/xfs/xfs_zone_gc.c

@@ -374,7 +374,7 @@ xfs_zone_gc_query(
 }
 
 static bool
-xfs_zone_gc_iter_next(
+xfs_zone_gc_iter_irec(
 	struct xfs_mount	*mp,
 	struct xfs_zone_gc_iter	*iter,
 	struct xfs_rmap_irec	*chunk_rec,
@@ -691,7 +691,7 @@ xfs_zone_gc_start_chunk(
 	if (xfs_is_shutdown(mp))
 		return false;
 
-	if (!xfs_zone_gc_iter_next(mp, iter, &irec, &ip))
+	if (!xfs_zone_gc_iter_irec(mp, iter, &irec, &ip))
 		return false;
 	oz = xfs_zone_gc_alloc_blocks(data, &irec.rm_blockcount, &daddr,
 			&is_seq);