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OpenCloudOS-Kernel/fs/xfs/xfs_iwalk.h

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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>
2019-07-03 00:39:38 +08:00
/* 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: specify AG in bulk req Add a new xfs_bulk_ireq flag to constrain the iteration to a single AG. If the passed-in startino value is zero then we start with the first inode in the AG that the user passes in; otherwise, we iterate only within the same AG as the passed-in inode. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 11:36:28 +08:00
unsigned int flags, xfs_iwalk_fn iwalk_fn,
unsigned int inode_records, void *data);
xfs: multithreaded iwalk implementation Create a parallel iwalk implementation and switch quotacheck to use it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 22:33:26 +08:00
int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino,
xfs: specify AG in bulk req Add a new xfs_bulk_ireq flag to constrain the iteration to a single AG. If the passed-in startino value is zero then we start with the first inode in the AG that the user passes in; otherwise, we iterate only within the same AG as the passed-in inode. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 11:36:28 +08:00
unsigned int flags, xfs_iwalk_fn iwalk_fn,
unsigned int inode_records, bool poll, void *data);
/* Only iterate inodes within the same AG as @startino. */
#define XFS_IWALK_SAME_AG (0x1)
#define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG)
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>
2019-07-03 00:39:38 +08:00
xfs: refactor iwalk code to handle walking inobt records Refactor xfs_iwalk_ag_start and xfs_iwalk_ag so that the bits that are particular to bulkstat (trimming the start irec, starting inode readahead, and skipping empty groups) can be controlled via flags in the iwag structure. This enables us to add a new function to walk all inobt records which will be used for the new INUMBERS implementation in the next patch. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 00:39:43 +08:00
/* Walk all inode btree records in the filesystem starting from @startino. */
typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_agnumber_t agno,
const struct xfs_inobt_rec_incore *irec,
void *data);
/* Return value (for xfs_inobt_walk_fn) that aborts the walk immediately. */
#define XFS_INOBT_WALK_ABORT (XFS_IWALK_ABORT)
int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp,
xfs: specify AG in bulk req Add a new xfs_bulk_ireq flag to constrain the iteration to a single AG. If the passed-in startino value is zero then we start with the first inode in the AG that the user passes in; otherwise, we iterate only within the same AG as the passed-in inode. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 11:36:28 +08:00
xfs_ino_t startino, unsigned int flags,
xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records,
void *data);
/* Only iterate inobt records within the same AG as @startino. */
#define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG)
#define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG)
xfs: refactor iwalk code to handle walking inobt records Refactor xfs_iwalk_ag_start and xfs_iwalk_ag so that the bits that are particular to bulkstat (trimming the start irec, starting inode readahead, and skipping empty groups) can be controlled via flags in the iwag structure. This enables us to add a new function to walk all inobt records which will be used for the new INUMBERS implementation in the next patch. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 00:39:43 +08:00
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>
2019-07-03 00:39:38 +08:00
#endif /* __XFS_IWALK_H__ */