1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2019 Oracle. All Rights Reserved. 4*4882a593Smuzhiyun * Author: Darrick J. Wong <darrick.wong@oracle.com> 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun #ifndef __XFS_IWALK_H__ 7*4882a593Smuzhiyun #define __XFS_IWALK_H__ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun /* 10*4882a593Smuzhiyun * Return codes for the inode/inobt walk function are 0 to continue iterating, 11*4882a593Smuzhiyun * and non-zero to stop iterating. Any non-zero value will be passed up to the 12*4882a593Smuzhiyun * iwalk or inobt_walk caller. The special value -ECANCELED can be used to 13*4882a593Smuzhiyun * stop iteration, as neither iwalk nor inobt_walk will ever generate that 14*4882a593Smuzhiyun * error code on their own. 15*4882a593Smuzhiyun */ 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* Walk all inodes in the filesystem starting from @startino. */ 18*4882a593Smuzhiyun typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, 19*4882a593Smuzhiyun xfs_ino_t ino, void *data); 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino, 22*4882a593Smuzhiyun unsigned int flags, xfs_iwalk_fn iwalk_fn, 23*4882a593Smuzhiyun unsigned int inode_records, void *data); 24*4882a593Smuzhiyun int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino, 25*4882a593Smuzhiyun unsigned int flags, xfs_iwalk_fn iwalk_fn, 26*4882a593Smuzhiyun unsigned int inode_records, bool poll, void *data); 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* Only iterate inodes within the same AG as @startino. */ 29*4882a593Smuzhiyun #define XFS_IWALK_SAME_AG (0x1) 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG) 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun /* Walk all inode btree records in the filesystem starting from @startino. */ 34*4882a593Smuzhiyun typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, 35*4882a593Smuzhiyun xfs_agnumber_t agno, 36*4882a593Smuzhiyun const struct xfs_inobt_rec_incore *irec, 37*4882a593Smuzhiyun void *data); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp, 40*4882a593Smuzhiyun xfs_ino_t startino, unsigned int flags, 41*4882a593Smuzhiyun xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records, 42*4882a593Smuzhiyun void *data); 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun /* Only iterate inobt records within the same AG as @startino. */ 45*4882a593Smuzhiyun #define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG) 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG) 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #endif /* __XFS_IWALK_H__ */ 50