blob: 9ed68bb750f50871a1ba17a4a67e24a8b4d4829b [file] [log] [blame]
David Chinnera167b172008-10-30 17:06:18 +11001/*
2 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
David Chinnerfe4fa4b2008-10-30 17:06:08 +110018#ifndef XFS_SYNC_H
19#define XFS_SYNC_H 1
20
David Chinnera167b172008-10-30 17:06:18 +110021struct xfs_mount;
Christoph Hellwigfcafb712009-02-09 08:47:34 +010022struct xfs_perag;
David Chinnera167b172008-10-30 17:06:18 +110023
Dwight Engenb9fe5052013-08-15 14:08:02 -040024struct 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};
31
Christoph Hellwig8b5403a2009-06-08 15:37:16 +020032#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
33#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
David Chinnera167b172008-10-30 17:06:18 +110034
Dave Chinner7bb85ef2013-08-12 20:49:34 +100035/*
36 * Flags for xfs_iget()
37 */
38#define XFS_IGET_CREATE 0x1
39#define XFS_IGET_UNTRUSTED 0x2
40#define XFS_IGET_DONTCACHE 0x4
41
Dave Chinner33479e02012-10-08 21:56:11 +110042int 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
Dave Chinner638f44162013-08-30 10:23:45 +100045/* 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
Dave Chinner33c7a2b2012-10-08 21:55:59 +110049void xfs_reclaim_worker(struct work_struct *work);
David Chinnera167b172008-10-30 17:06:18 +110050
Dave Chinnerabc10642009-06-08 15:35:12 +020051int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
Dave Chinner8daaa832011-07-08 14:14:46 +100052int xfs_reclaim_inodes_count(struct xfs_mount *mp);
Dave Chinner0a234c62013-08-28 10:17:57 +100053long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
David Chinnerfce08f22008-10-30 17:37:03 +110054
David Chinner396beb82008-10-30 17:37:26 +110055void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
Christoph Hellwigfe588ed2009-06-08 15:35:27 +020056
Brian Foster27b52862012-11-06 09:50:38 -050057void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
58void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
Brian Foster8ca149d2012-11-07 12:21:12 -050059int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *);
Brian Foster579b62f2012-11-06 09:50:47 -050060void xfs_eofblocks_worker(struct work_struct *);
Brian Foster27b52862012-11-06 09:50:38 -050061
Christoph Hellwigfe588ed2009-06-08 15:35:27 +020062int xfs_inode_ag_iterator(struct xfs_mount *mp,
Brian Fostera454f742012-11-06 09:50:39 -050063 int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
64 int flags, void *args),
65 int flags, void *args);
66int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
67 int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
68 int flags, void *args),
69 int flags, void *args, int tag);
Dave Chinner9bf729c2010-04-29 09:55:50 +100070
Dwight Engenb9fe5052013-08-15 14:08:02 -040071static 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
90 dst->eof_uid = INVALID_UID;
91 if (src->eof_flags & XFS_EOF_FLAGS_UID) {
92 dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
93 if (!uid_valid(dst->eof_uid))
94 return EINVAL;
95 }
96
97 dst->eof_gid = INVALID_GID;
98 if (src->eof_flags & XFS_EOF_FLAGS_GID) {
99 dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
100 if (!gid_valid(dst->eof_gid))
101 return EINVAL;
102 }
103 return 0;
104}
105
David Chinnerfe4fa4b2008-10-30 17:06:08 +1100106#endif