fs/xfs/xfs_icache.h

   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
   9 struct xfs_mount;
  10 struct xfs_perag;
  11
  12 struct 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
  42 int 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 */
  46 struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
  47 void xfs_inode_free(struct xfs_inode *ip);
  48
  49 void xfs_reclaim_worker(struct work_struct *work);
  50
  51 void xfs_reclaim_inodes(struct xfs_mount *mp);
  52 long xfs_reclaim_inodes_count(struct xfs_mount *mp);
  53 long xfs_reclaim_inodes_nr(struct xfs_mount *mp, unsigned long nr_to_scan);
  54
  55 void xfs_inode_mark_reclaimable(struct xfs_inode *ip);
  56
  57 int 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);
  60 int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int iwalk_flags);
  61 int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_icwalk *icm);
  62 void xfs_blockgc_flush_all(struct xfs_mount *mp);
  63
  64 void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
  65 void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
  66
  67 void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
  68 void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
  69
  70 void xfs_blockgc_worker(struct work_struct *work);
  71
  72 int xfs_icache_inode_is_allocated(struct xfs_mount *mp, struct xfs_trans *tp,
  73                                   xfs_ino_t ino, bool *inuse);
  74
  75 void xfs_blockgc_stop(struct xfs_mount *mp);
  76 void xfs_blockgc_start(struct xfs_mount *mp);
  77
  78 void xfs_inodegc_worker(struct work_struct *work);
  79 void xfs_inodegc_push(struct xfs_mount *mp);
  80 void xfs_inodegc_flush(struct xfs_mount *mp);
  81 void xfs_inodegc_stop(struct xfs_mount *mp);
  82 void xfs_inodegc_start(struct xfs_mount *mp);
  83 void xfs_inodegc_cpu_dead(struct xfs_mount *mp, unsigned int cpu);
  84 int xfs_inodegc_register_shrinker(struct xfs_mount *mp);
  85
  86 #endif