blob: a1e02f4708abbfd6c942f4a5178709c58d681d8e [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;
Brian Foster5400da72014-07-24 19:40:22 +100030 xfs_ino_t eof_scan_owner;
Dwight Engenb9fe5052013-08-15 14:08:02 -040031};
32
Christoph Hellwig8b5403a2009-06-08 15:37:16 +020033#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
34#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
David Chinnera167b172008-10-30 17:06:18 +110035
Dave Chinner7bb85ef2013-08-12 20:49:34 +100036/*
Christoph Hellwig4fb6e8a2014-11-28 14:25:04 +110037 * tags for inode radix tree
38 */
39#define XFS_ICI_NO_TAG (-1) /* special flag for an untagged lookup
40 in xfs_inode_ag_iterator */
41#define XFS_ICI_RECLAIM_TAG 0 /* inode is to be reclaimed */
42#define XFS_ICI_EOFBLOCKS_TAG 1 /* inode has blocks beyond EOF */
Darrick J. Wong83104d42016-10-03 09:11:46 -070043#define XFS_ICI_COWBLOCKS_TAG 2 /* inode can have cow blocks to gc */
Christoph Hellwig4fb6e8a2014-11-28 14:25:04 +110044
45/*
Dave Chinner7bb85ef2013-08-12 20:49:34 +100046 * Flags for xfs_iget()
47 */
48#define XFS_IGET_CREATE 0x1
49#define XFS_IGET_UNTRUSTED 0x2
50#define XFS_IGET_DONTCACHE 0x4
51
Dave Chinner33479e02012-10-08 21:56:11 +110052int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
53 uint flags, uint lock_flags, xfs_inode_t **ipp);
54
Dave Chinner638f44162013-08-30 10:23:45 +100055/* recovery needs direct inode allocation capability */
56struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
57void xfs_inode_free(struct xfs_inode *ip);
58
Dave Chinner33c7a2b2012-10-08 21:55:59 +110059void xfs_reclaim_worker(struct work_struct *work);
David Chinnera167b172008-10-30 17:06:18 +110060
Dave Chinnerabc10642009-06-08 15:35:12 +020061int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
Dave Chinner8daaa832011-07-08 14:14:46 +100062int xfs_reclaim_inodes_count(struct xfs_mount *mp);
Dave Chinner0a234c62013-08-28 10:17:57 +100063long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
David Chinnerfce08f22008-10-30 17:37:03 +110064
David Chinner396beb82008-10-30 17:37:26 +110065void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
Christoph Hellwigfe588ed2009-06-08 15:35:27 +020066
Brian Foster27b52862012-11-06 09:50:38 -050067void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
68void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
Brian Foster8ca149d2012-11-07 12:21:12 -050069int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *);
Brian Fosterdc06f3982014-07-24 19:49:28 +100070int xfs_inode_free_quota_eofblocks(struct xfs_inode *ip);
Brian Foster579b62f2012-11-06 09:50:47 -050071void xfs_eofblocks_worker(struct work_struct *);
Brian Fosterfa5a4f52016-06-21 11:53:28 +100072void xfs_queue_eofblocks(struct xfs_mount *);
Brian Foster27b52862012-11-06 09:50:38 -050073
Darrick J. Wong83104d42016-10-03 09:11:46 -070074void xfs_inode_set_cowblocks_tag(struct xfs_inode *ip);
75void xfs_inode_clear_cowblocks_tag(struct xfs_inode *ip);
76int xfs_icache_free_cowblocks(struct xfs_mount *, struct xfs_eofblocks *);
77int xfs_inode_free_quota_cowblocks(struct xfs_inode *ip);
78void xfs_cowblocks_worker(struct work_struct *);
79
Christoph Hellwigfe588ed2009-06-08 15:35:27 +020080int xfs_inode_ag_iterator(struct xfs_mount *mp,
Eric Sandeene0094002014-04-14 19:04:19 +100081 int (*execute)(struct xfs_inode *ip, int flags, void *args),
Brian Fostera454f742012-11-06 09:50:39 -050082 int flags, void *args);
83int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
Eric Sandeene0094002014-04-14 19:04:19 +100084 int (*execute)(struct xfs_inode *ip, int flags, void *args),
Brian Fostera454f742012-11-06 09:50:39 -050085 int flags, void *args, int tag);
Dave Chinner9bf729c2010-04-29 09:55:50 +100086
Dwight Engenb9fe5052013-08-15 14:08:02 -040087static inline int
88xfs_fs_eofblocks_from_user(
89 struct xfs_fs_eofblocks *src,
90 struct xfs_eofblocks *dst)
91{
92 if (src->eof_version != XFS_EOFBLOCKS_VERSION)
Dave Chinner24513372014-06-25 14:58:08 +100093 return -EINVAL;
Dwight Engenb9fe5052013-08-15 14:08:02 -040094
95 if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
Dave Chinner24513372014-06-25 14:58:08 +100096 return -EINVAL;
Dwight Engenb9fe5052013-08-15 14:08:02 -040097
98 if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
99 memchr_inv(src->pad64, 0, sizeof(src->pad64)))
Dave Chinner24513372014-06-25 14:58:08 +1000100 return -EINVAL;
Dwight Engenb9fe5052013-08-15 14:08:02 -0400101
102 dst->eof_flags = src->eof_flags;
103 dst->eof_prid = src->eof_prid;
104 dst->eof_min_file_size = src->eof_min_file_size;
Brian Foster5400da72014-07-24 19:40:22 +1000105 dst->eof_scan_owner = NULLFSINO;
Dwight Engenb9fe5052013-08-15 14:08:02 -0400106
107 dst->eof_uid = INVALID_UID;
108 if (src->eof_flags & XFS_EOF_FLAGS_UID) {
109 dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
110 if (!uid_valid(dst->eof_uid))
Dave Chinner24513372014-06-25 14:58:08 +1000111 return -EINVAL;
Dwight Engenb9fe5052013-08-15 14:08:02 -0400112 }
113
114 dst->eof_gid = INVALID_GID;
115 if (src->eof_flags & XFS_EOF_FLAGS_GID) {
116 dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
117 if (!gid_valid(dst->eof_gid))
Dave Chinner24513372014-06-25 14:58:08 +1000118 return -EINVAL;
Dwight Engenb9fe5052013-08-15 14:08:02 -0400119 }
120 return 0;
121}
122
David Chinnerfe4fa4b2008-10-30 17:06:08 +1100123#endif