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18#ifndef XFS_SYNC_H
19#define XFS_SYNC_H 1
20
21struct xfs_mount;
22struct xfs_perag;
23
24struct xfs_eofblocks {
25 __u32 eof_flags;
26 kuid_t eof_uid;
27 kgid_t eof_gid;
28 prid_t eof_prid;
29 __u64 eof_min_file_size;
30 xfs_ino_t eof_scan_owner;
31};
32
33#define SYNC_WAIT 0x0001
34#define SYNC_TRYLOCK 0x0002
35
36
37
38
39#define XFS_IGET_CREATE 0x1
40#define XFS_IGET_UNTRUSTED 0x2
41#define XFS_IGET_DONTCACHE 0x4
42
43int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
44 uint flags, uint lock_flags, xfs_inode_t **ipp);
45
46
47struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
48void xfs_inode_free(struct xfs_inode *ip);
49
50void xfs_reclaim_worker(struct work_struct *work);
51
52int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
53int xfs_reclaim_inodes_count(struct xfs_mount *mp);
54long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
55
56void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
57
58void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
59void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
60int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *);
61int xfs_inode_free_quota_eofblocks(struct xfs_inode *ip);
62void xfs_eofblocks_worker(struct work_struct *);
63
64int xfs_inode_ag_iterator(struct xfs_mount *mp,
65 int (*execute)(struct xfs_inode *ip, int flags, void *args),
66 int flags, void *args);
67int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
68 int (*execute)(struct xfs_inode *ip, int flags, void *args),
69 int flags, void *args, int tag);
70
71static inline int
72xfs_fs_eofblocks_from_user(
73 struct xfs_fs_eofblocks *src,
74 struct xfs_eofblocks *dst)
75{
76 if (src->eof_version != XFS_EOFBLOCKS_VERSION)
77 return -EINVAL;
78
79 if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
80 return -EINVAL;
81
82 if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
83 memchr_inv(src->pad64, 0, sizeof(src->pad64)))
84 return -EINVAL;
85
86 dst->eof_flags = src->eof_flags;
87 dst->eof_prid = src->eof_prid;
88 dst->eof_min_file_size = src->eof_min_file_size;
89 dst->eof_scan_owner = NULLFSINO;
90
91 dst->eof_uid = INVALID_UID;
92 if (src->eof_flags & XFS_EOF_FLAGS_UID) {
93 dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
94 if (!uid_valid(dst->eof_uid))
95 return -EINVAL;
96 }
97
98 dst->eof_gid = INVALID_GID;
99 if (src->eof_flags & XFS_EOF_FLAGS_GID) {
100 dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
101 if (!gid_valid(dst->eof_gid))
102 return -EINVAL;
103 }
104 return 0;
105}
106
107#endif
108