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authorDarrick J. Wong <darrick.wong@oracle.com>2019-07-02 09:39:38 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2019-07-02 09:40:05 -0700
commita211432c27ffa32d9978f6c18f5af0c3f8ad2ad1 (patch)
treee9eea5c3d498f02fc9f2ccbaa3aced4169b7e6e8 /fs/xfs/xfs_iwalk.h
parent5bb46e3e180d28c7ee6715f47c344be366a3fcc8 (diff)
xfs: create simplified inode walk function
Create a new iterator function to simplify walking inodes in an XFS filesystem. This new iterator will replace the existing open-coded walking that goes on in various places. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_iwalk.h')
-rw-r--r--fs/xfs/xfs_iwalk.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/xfs/xfs_iwalk.h b/fs/xfs/xfs_iwalk.h
new file mode 100644
index 000000000000..7728dfd618a4
--- /dev/null
+++ b/fs/xfs/xfs_iwalk.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ */
+#ifndef __XFS_IWALK_H__
+#define __XFS_IWALK_H__
+
+/* Walk all inodes in the filesystem starting from @startino. */
+typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
+ xfs_ino_t ino, void *data);
+/* Return values for xfs_iwalk_fn. */
+#define XFS_IWALK_CONTINUE (XFS_ITER_CONTINUE)
+#define XFS_IWALK_ABORT (XFS_ITER_ABORT)
+
+int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino,
+ xfs_iwalk_fn iwalk_fn, unsigned int inode_records, void *data);
+
+#endif /* __XFS_IWALK_H__ */