tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
4 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License version 2.
8 */
9
10#ifndef __QUOTA_DOT_H__
11#define __QUOTA_DOT_H__
12
13struct gfs2_inode;
14struct gfs2_sbd;
15
16#define NO_QUOTA_CHANGE ((u32)-1)
17
18int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
19void gfs2_quota_unhold(struct gfs2_inode *ip);
20
21int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
22void gfs2_quota_unlock(struct gfs2_inode *ip);
23
24int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
25void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
26 u32 uid, u32 gid);
27
28int gfs2_quota_sync(struct gfs2_sbd *sdp);
29int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
30
31int gfs2_quota_init(struct gfs2_sbd *sdp);
32void gfs2_quota_scan(struct gfs2_sbd *sdp);
33void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
34
35static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
36{
37 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
38 int ret;
39 if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
40 return 0;
41 ret = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
42 if (ret)
43 return ret;
44 if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
45 return 0;
46 ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
47 if (ret)
48 gfs2_quota_unlock(ip);
49 return ret;
50}
51
52#endif /* __QUOTA_DOT_H__ */