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_eofblocks {
  13        __u32           eof_flags;
  14        kuid_t          eof_uid;
  15        kgid_t          eof_gid;
  16        prid_t          eof_prid;
  17        __u64           eof_min_file_size;
  18};
  19
  20/*
  21 * tags for inode radix tree
  22 */
  23#define XFS_ICI_NO_TAG          (-1)    /* special flag for an untagged lookup
  24                                           in xfs_inode_walk */
  25#define XFS_ICI_RECLAIM_TAG     0       /* inode is to be reclaimed */
  26/* Inode has speculative preallocations (posteof or cow) to clean. */
  27#define XFS_ICI_BLOCKGC_TAG     1
  28
  29/*
  30 * Flags for xfs_iget()
  31 */
  32#define XFS_IGET_CREATE         0x1
  33#define XFS_IGET_UNTRUSTED      0x2
  34#define XFS_IGET_DONTCACHE      0x4
  35#define XFS_IGET_INCORE         0x8     /* don't read from disk or reinit */
  36
  37/*
  38 * flags for AG inode iterator
  39 */
  40#define XFS_INODE_WALK_INEW_WAIT        0x1     /* wait on new inodes */
  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);
  52int xfs_reclaim_inodes_count(struct xfs_mount *mp);
  53long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
  54
  55void xfs_inode_set_reclaim_tag(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 eof_flags);
  60int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int eof_flags);
  61int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_eofblocks *eofb);
  62
  63void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
  64void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
  65
  66void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
  67void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
  68
  69void xfs_blockgc_worker(struct work_struct *work);
  70
  71int xfs_inode_walk(struct xfs_mount *mp, int iter_flags,
  72        int (*execute)(struct xfs_inode *ip, void *args),
  73        void *args, int tag);
  74
  75int xfs_icache_inode_is_allocated(struct xfs_mount *mp, struct xfs_trans *tp,
  76                                  xfs_ino_t ino, bool *inuse);
  77
  78void xfs_blockgc_stop(struct xfs_mount *mp);
  79void xfs_blockgc_start(struct xfs_mount *mp);
  80
  81#endif
  82