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10#ifndef __QUOTA_DOT_H__
11#define __QUOTA_DOT_H__
12
13struct gfs2_inode;
14struct gfs2_sbd;
15struct shrink_control;
16
17#define NO_UID_QUOTA_CHANGE INVALID_UID
18#define NO_GID_QUOTA_CHANGE INVALID_GID
19
20extern int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
21extern void gfs2_quota_unhold(struct gfs2_inode *ip);
22
23extern int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
24extern void gfs2_quota_unlock(struct gfs2_inode *ip);
25
26extern int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
27extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
28 kuid_t uid, kgid_t gid);
29
30extern int gfs2_quota_sync(struct super_block *sb, int type);
31extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);
32
33extern int gfs2_quota_init(struct gfs2_sbd *sdp);
34extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
35extern int gfs2_quotad(void *data);
36
37extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
38
39static 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;
45 ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
46 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
56extern int gfs2_shrink_qd_memory(struct shrinker *shrink,
57 struct shrink_control *sc);
58extern const struct quotactl_ops gfs2_quotactl_ops;
59
60#endif
61