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         (1U << 0)
  38 #define XFS_IGET_UNTRUSTED      (1U << 1)
  39 #define XFS_IGET_DONTCACHE      (1U << 2)
  40 /* don't read from disk or reinit */
  41 #define XFS_IGET_INCORE         (1U << 3)
  42 /* Return -EAGAIN immediately if the inode is unavailable. */
  43 #define XFS_IGET_NORETRY        (1U << 4)
  44
  45 int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
  46              uint flags, uint lock_flags, xfs_inode_t **ipp);
  47
  48 /* recovery needs direct inode allocation capability */
  49 struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
  50 void xfs_inode_free(struct xfs_inode *ip);
  51
  52 void xfs_reclaim_worker(struct work_struct *work);
  53
  54 void xfs_reclaim_inodes(struct xfs_mount *mp);
  55 long xfs_reclaim_inodes_count(struct xfs_mount *mp);
  56 long xfs_reclaim_inodes_nr(struct xfs_mount *mp, unsigned long nr_to_scan);
  57
  58 void xfs_inode_mark_reclaimable(struct xfs_inode *ip);
  59
  60 int xfs_blockgc_free_dquots(struct xfs_mount *mp, struct xfs_dquot *udqp,
  61                 struct xfs_dquot *gdqp, struct xfs_dquot *pdqp,
  62                 unsigned int iwalk_flags);
  63 int xfs_blockgc_free_quota(struct xfs_inode *ip, unsigned int iwalk_flags);
  64 int xfs_blockgc_free_space(struct xfs_mount *mp, struct xfs_icwalk *icm);
  65 int xfs_blockgc_flush_all(struct xfs_mount *mp);
  66
  67 void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
  68 void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
  69
  70 void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
  71 void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
  72
  73 void xfs_blockgc_worker(struct work_struct *work);
  74 void xfs_blockgc_stop(struct xfs_mount *mp);
  75 void xfs_blockgc_start(struct xfs_mount *mp);
  76
  77 void xfs_inodegc_worker(struct work_struct *work);
  78 void xfs_inodegc_push(struct xfs_mount *mp);
  79 int xfs_inodegc_flush(struct xfs_mount *mp);
  80 void xfs_inodegc_stop(struct xfs_mount *mp);
  81 void xfs_inodegc_start(struct xfs_mount *mp);
  82 int xfs_inodegc_register_shrinker(struct xfs_mount *mp);
  83
  84 #endif