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xfs: create simplified inode walk function

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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>
This commit is contained in:
Darrick J. Wong
2019-07-02 09:39:38 -07:00
parent 5bb46e3e18
commit a211432c27
8 changed files with 496 additions and 6 deletions
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19
fs/xfs/xfs_iwalk.h Normal file
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/* 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__ */