LXR linux/fs/xfs/xfs

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
   4 * All Rights Reserved.
   5 */
   6#ifndef XFS_SYNC_H
   7#define XFS_SYNC_H 1
   8
   9struct xfs_mount;
  10struct xfs_perag;
  11
  12struct xfs_icwalk {
  13        __u32           icw_flags;
  14        kuid_t          icw_uid;
  15        kgid_t          icw_gid;
  16        prid_t          icw_prid;
  17        __u64           icw_min_file_size;
  18        long            icw_scan_limit;
  19};
  20
  21/* Flags that reflect xfs_fs_eofblocks functionality. */
  22#define XFS_ICWALK_FLAG_SYNC            (1U << 0) /* sync/wait mode scan */
  23#define XFS_ICWALK_FLAG_UID             (1U << 1) /* filter by uid */
  24#define XFS_ICWALK_FLAG_GID             (1U << 2) /* filter by gid */
  25#define XFS_ICWALK_FLAG_PRID            (1U << 3) /* filter by project id */
  26#define XFS_ICWALK_FLAG_MINFILESIZE     (1U << 4) /* filter by min file size */
  27
  28#define XFS_ICWALK_FLAGS_VALID          (XFS_ICWALK_FLAG_SYNC | \
  29                                         XFS_ICWALK_FLAG_UID | \
  30                                         XFS_ICWALK_FLAG_GID | \
  31                                         XFS_ICWALK_FLAG_PRID | \
  32                                         XFS_ICWALK_FLAG_MINFILESIZE)
  33
  34/*
  35 * Flags for xfs_iget()
  36 */
  37#define XFS_IGET_CREATE         0x1
  38#define XFS_IGET_UNTRUSTED      0x2
  39#define XFS_IGET_DONTCACHE      0x4
  40#define XFS_IGET_INCORE         0x8     /* don't read from disk or reinit */
  41
  42int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
  43             uint flags, uint lock_flags, xfs_inode_t **ipp);
  44
  45/* recovery needs direct inode allocation capability */
  46struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
  47void xfs_inode_free(struct xfs_inode *ip);
  48
  49void xfs_reclaim_worker(struct work_struct *work);
  50
  51void xfs_reclaim_inodes(struct xfs_mount *mp);
  52long xfs_reclaim_inodes_count(struct xfs_mount *mp);
  53long xfs_reclaim_inodes_nr(struct xfs_mount *mp, unsigned long nr_to_scan);
  54
  55void xfs_inode_mark_reclaimable(struct xfs_inode *ip);
  56
  57int xfs_blockgc_free_dquots(struct xfs_mount *mp, struct xfs_dquot *udqp,
  58                struct xfs_dquot *gdqp, struct xfs_dquot *pdqp,
  59                unsigned int iwalk_flags);
  60int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int iwalk_flags);
  61int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_icwalk *icm);
  62void xfs_blockgc_flush_all(struct xfs_mount *mp);
  63
  64void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
  65void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
  66
  67void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
  68void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
  69
  70void xfs_blockgc_worker(struct work_struct *work);
  71
  72int xfs_icache_inode_is_allocated(struct xfs_mount *mp, struct xfs_trans *tp,
  73                                  xfs_ino_t ino, bool *inuse);
  74
  75void xfs_blockgc_stop(struct xfs_mount *mp);
  76void xfs_blockgc_start(struct xfs_mount *mp);
  77
  78void xfs_inodegc_worker(struct work_struct *work);
  79void xfs_inodegc_flush(struct xfs_mount *mp);
  80void xfs_inodegc_stop(struct xfs_mount *mp);
  81void xfs_inodegc_start(struct xfs_mount *mp);
  82void xfs_inodegc_cpu_dead(struct xfs_mount *mp, unsigned int cpu);
  83int xfs_inodegc_register_shrinker(struct xfs_mount *mp);
  84
  85#endif
  86