[PATCH 17/18] xfs_scrub: remove XFS_ITERATE_INODES_ABORT from inode iterator

["Darrick J. Wong" <darrick.wong@oracle.com>]

From: Darrick J. Wong <darrick.wong@oracle.com>

Remove the _ABORT code since nobody uses it and we're slowly moving to
ECANCELED anyway.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 scrub/inodes.c |    2 +-
 scrub/inodes.h |    8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)


diff --git a/scrub/inodes.c b/scrub/inodes.c
index fea36773..ee4a52e3 100644
--- a/scrub/inodes.c
+++ b/scrub/inodes.c
@@ -180,7 +180,7 @@ scan_ag_inodes(
 _("Changed too many times during scan; giving up."));
 				break;
 			}
-			case XFS_ITERATE_INODES_ABORT:
+			case ECANCELED:
 				error = 0;
 				/* fall thru */
 			default:
diff --git a/scrub/inodes.h b/scrub/inodes.h
index 5bedd55b..e3662c09 100644
--- a/scrub/inodes.h
+++ b/scrub/inodes.h
@@ -6,10 +6,16 @@
 #ifndef XFS_SCRUB_INODES_H_
 #define XFS_SCRUB_INODES_H_
 
+/*
+ * Return codes for the inode iterator function are 0 to continue iterating,
+ * and non-zero to stop iterating.  Any non-zero value will be passed up to the
+ * iteration caller.  The special value ECANCELED can be used to stop
+ * iteration, because the inode iteration function never generates that error
+ * code on its own.
+ */
 typedef int (*scrub_inode_iter_fn)(struct scrub_ctx *ctx,
 		struct xfs_handle *handle, struct xfs_bulkstat *bs, void *arg);
 
-#define XFS_ITERATE_INODES_ABORT	(-1)
 int scrub_scan_all_inodes(struct scrub_ctx *ctx, scrub_inode_iter_fn fn,
 		void *arg);