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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 Whitehouse2147dbf2013-11-04 10:15:08 +000013#include <linux/list_lru.h>
14
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040015struct gfs2_inode;
16struct gfs2_sbd;
17
Eric W. Biedermanf4108a62013-01-31 17:49:26 -080018#define NO_UID_QUOTA_CHANGE INVALID_UID
19#define NO_GID_QUOTA_CHANGE INVALID_GID
David Teiglandb3b94fa2006-01-16 16:50:04 +000020
Bob Petersonb54e9a02015-10-26 10:40:28 -050021extern int gfs2_qa_alloc(struct gfs2_inode *ip);
Bob Petersona097dc7e2015-07-16 08:28:04 -050022extern void gfs2_qa_delete(struct gfs2_inode *ip, atomic_t *wcount);
Eric W. Biederman7c06b5d2013-01-31 20:27:54 -080023extern int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000024extern void gfs2_quota_unhold(struct gfs2_inode *ip);
David Teiglandb3b94fa2006-01-16 16:50:04 +000025
Eric W. Biederman7c06b5d2013-01-31 20:27:54 -080026extern int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000027extern void gfs2_quota_unlock(struct gfs2_inode *ip);
David Teiglandb3b94fa2006-01-16 16:50:04 +000028
Abhi Dasb8fbf472015-03-18 12:03:41 -050029extern int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid,
30 struct gfs2_alloc_parms *ap);
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000031extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
Eric W. Biederman7c06b5d2013-01-31 20:27:54 -080032 kuid_t uid, kgid_t gid);
David Teiglandb3b94fa2006-01-16 16:50:04 +000033
Jan Karaceed1722012-07-03 16:45:28 +020034extern int gfs2_quota_sync(struct super_block *sb, int type);
Eric W. Biedermaned87dab2013-01-31 19:42:40 -080035extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);
David Teiglandb3b94fa2006-01-16 16:50:04 +000036
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +000037extern int gfs2_quota_init(struct gfs2_sbd *sdp);
38extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
39extern int gfs2_quotad(void *data);
David Teiglandb3b94fa2006-01-16 16:50:04 +000040
Benjamin Marzinski3d3c10f2009-10-20 02:39:44 -050041extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
42
Abhi Dasb8fbf472015-03-18 12:03:41 -050043static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
44 struct gfs2_alloc_parms *ap)
Steven Whitehoused82661d2008-03-10 15:34:50 +000045{
46 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
47 int ret;
48 if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
49 return 0;
Eric W. Biedermanf4108a62013-01-31 17:49:26 -080050 ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
Steven Whitehoused82661d2008-03-10 15:34:50 +000051 if (ret)
52 return ret;
53 if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
54 return 0;
Abhi Dasb8fbf472015-03-18 12:03:41 -050055 ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid, ap);
Steven Whitehoused82661d2008-03-10 15:34:50 +000056 if (ret)
57 gfs2_quota_unlock(ip);
58 return ret;
59}
60
Steven Whitehousecc632e72009-09-15 09:59:02 +010061extern const struct quotactl_ops gfs2_quotactl_ops;
Steven Whitehouse2147dbf2013-11-04 10:15:08 +000062extern struct shrinker gfs2_qd_shrinker;
63extern struct list_lru gfs2_qd_lru;
Steven Whitehousec754fbb2013-12-12 10:47:59 +000064extern void __init gfs2_quota_hash_init(void);
Abhijith Das0a7ab792009-01-07 16:03:37 -060065
David Teiglandb3b94fa2006-01-16 16:50:04 +000066#endif /* __QUOTA_DOT_H__ */