50 строки
1.8 KiB
C
50 строки
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2019 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*/
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#ifndef __XFS_IWALK_H__
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#define __XFS_IWALK_H__
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/*
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* Return codes for the inode/inobt walk function are 0 to continue iterating,
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* and non-zero to stop iterating. Any non-zero value will be passed up to the
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* iwalk or inobt_walk caller. The special value -ECANCELED can be used to
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* stop iteration, as neither iwalk nor inobt_walk will ever generate that
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* error code on their own.
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*/
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/* Walk all inodes in the filesystem starting from @startino. */
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typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
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xfs_ino_t ino, void *data);
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int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino,
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unsigned int flags, xfs_iwalk_fn iwalk_fn,
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unsigned int inode_records, void *data);
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int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino,
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unsigned int flags, xfs_iwalk_fn iwalk_fn,
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unsigned int inode_records, bool poll, void *data);
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/* Only iterate inodes within the same AG as @startino. */
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#define XFS_IWALK_SAME_AG (0x1)
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#define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG)
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/* Walk all inode btree records in the filesystem starting from @startino. */
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typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
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xfs_agnumber_t agno,
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const struct xfs_inobt_rec_incore *irec,
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void *data);
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int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp,
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xfs_ino_t startino, unsigned int flags,
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xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records,
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void *data);
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/* Only iterate inobt records within the same AG as @startino. */
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#define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG)
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#define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG)
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#endif /* __XFS_IWALK_H__ */
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