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gerrit-public.fairphone.software / kernel / msm / 79fb9387f88b6b44bbc46e19cae26d2c9fe3bb6a / . / fs / gfs2 / quota.h
blob: 0fa5fa63d0e8fce00a37c2ea4cbdc7a476fe5c3e [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -0400[diff] [blame]3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]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
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -0400[diff] [blame]7 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]8 */
9
10#ifndef __QUOTA_DOT_H__
11#define __QUOTA_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -0400[diff] [blame]13struct gfs2_inode;
14struct gfs2_sbd;
15
Steven Whitehousecd915492006-09-04 12:49:07 -0400[diff] [blame]16#define NO_QUOTA_CHANGE ((u32)-1)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]17
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +0000[diff] [blame]18extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
19extern void gfs2_quota_unhold(struct gfs2_inode *ip);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]20
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +0000[diff] [blame]21extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
22extern void gfs2_quota_unlock(struct gfs2_inode *ip);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]23
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +0000[diff] [blame]24extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
25extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
26 u32 uid, u32 gid);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]27
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +0000[diff] [blame]28extern int gfs2_quota_sync(struct gfs2_sbd *sdp);
29extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]30
Steven Whitehouse9ac1b4d2008-11-19 10:08:22 +0000[diff] [blame]31extern int gfs2_quota_init(struct gfs2_sbd *sdp);
32extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
33extern int gfs2_quotad(void *data);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]34
Steven Whitehoused82661d2008-03-10 15:34:50 +0000[diff] [blame]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
Abhijith Das0a7ab792009-01-07 16:03:37 -0600[diff] [blame]52extern int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask);
53
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]54#endif /* __QUOTA_DOT_H__ */