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David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -04003 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +00004 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -04007 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +00008 */
9
10#ifndef __QUOTA_DOT_H__
11#define __QUOTA_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040013struct gfs2_inode;
14struct gfs2_sbd;
Ying Han1495f232011-05-24 17:12:27 -070015struct shrink_control;
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040016
Eric W. Biedermanf4108a62013-01-31 17:49:26 -080017#define NO_UID_QUOTA_CHANGE INVALID_UID
18#define NO_GID_QUOTA_CHANGE INVALID_GID
David Teiglandb3b94fa2006-01-16 16:50:04 +000019
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000020extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
21extern void gfs2_quota_unhold(struct gfs2_inode *ip);
David Teiglandb3b94fa2006-01-16 16:50:04 +000022
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000023extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
24extern void gfs2_quota_unlock(struct gfs2_inode *ip);
David Teiglandb3b94fa2006-01-16 16:50:04 +000025
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000026extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
27extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
28 u32 uid, u32 gid);
David Teiglandb3b94fa2006-01-16 16:50:04 +000029
Jan Karaceed1722012-07-03 16:45:28 +020030extern int gfs2_quota_sync(struct super_block *sb, int type);
Eric W. Biedermaned87dab2013-01-31 19:42:40 -080031extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);
David Teiglandb3b94fa2006-01-16 16:50:04 +000032
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000033extern int gfs2_quota_init(struct gfs2_sbd *sdp);
34extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
35extern int gfs2_quotad(void *data);
David Teiglandb3b94fa2006-01-16 16:50:04 +000036
Benjamin Marzinski3d3c10f2009-10-20 02:39:44 -050037extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
38
Steven Whitehoused82661d2008-03-10 15:34:50 +000039static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
40{
41 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
42 int ret;
43 if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
44 return 0;
Eric W. Biedermanf4108a62013-01-31 17:49:26 -080045 ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
Steven Whitehoused82661d2008-03-10 15:34:50 +000046 if (ret)
47 return ret;
48 if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
49 return 0;
50 ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
51 if (ret)
52 gfs2_quota_unlock(ip);
53 return ret;
54}
55
Ying Han1495f232011-05-24 17:12:27 -070056extern int gfs2_shrink_qd_memory(struct shrinker *shrink,
57 struct shrink_control *sc);
Steven Whitehousecc632e72009-09-15 09:59:02 +010058extern const struct quotactl_ops gfs2_quotactl_ops;
Abhijith Das0a7ab792009-01-07 16:03:37 -060059
David Teiglandb3b94fa2006-01-16 16:50:04 +000060#endif /* __QUOTA_DOT_H__ */