17336d0e6SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */
2b3b94faaSDavid Teigland /*
3b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
43a8a9a10SSteven Whitehouse * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
5b3b94faaSDavid Teigland */
6b3b94faaSDavid Teigland
7b3b94faaSDavid Teigland #ifndef __QUOTA_DOT_H__
8b3b94faaSDavid Teigland #define __QUOTA_DOT_H__
9b3b94faaSDavid Teigland
102147dbfdSSteven Whitehouse #include <linux/list_lru.h>
112147dbfdSSteven Whitehouse
12f2f7ba52SSteven Whitehouse struct gfs2_inode;
13f2f7ba52SSteven Whitehouse struct gfs2_sbd;
14f2f7ba52SSteven Whitehouse
15f4108a60SEric W. Biederman #define NO_UID_QUOTA_CHANGE INVALID_UID
16f4108a60SEric W. Biederman #define NO_GID_QUOTA_CHANGE INVALID_GID
17b3b94faaSDavid Teigland
18d312fbf6SAndreas Gruenbacher int gfs2_qa_get(struct gfs2_inode *ip);
19d312fbf6SAndreas Gruenbacher void gfs2_qa_put(struct gfs2_inode *ip);
20d312fbf6SAndreas Gruenbacher int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
21d312fbf6SAndreas Gruenbacher void gfs2_quota_unhold(struct gfs2_inode *ip);
22b3b94faaSDavid Teigland
23d312fbf6SAndreas Gruenbacher int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
24d312fbf6SAndreas Gruenbacher void gfs2_quota_unlock(struct gfs2_inode *ip);
25b3b94faaSDavid Teigland
26d312fbf6SAndreas Gruenbacher int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid,
27b8fbf471SAbhi Das struct gfs2_alloc_parms *ap);
28d312fbf6SAndreas Gruenbacher void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
297c06b5d6SEric W. Biederman kuid_t uid, kgid_t gid);
30b3b94faaSDavid Teigland
31d312fbf6SAndreas Gruenbacher int gfs2_quota_sync(struct super_block *sb, int type);
32d312fbf6SAndreas Gruenbacher int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);
33b3b94faaSDavid Teigland
34d312fbf6SAndreas Gruenbacher int gfs2_quota_init(struct gfs2_sbd *sdp);
35d312fbf6SAndreas Gruenbacher void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
36d312fbf6SAndreas Gruenbacher int gfs2_quotad(void *data);
37b3b94faaSDavid Teigland
38d312fbf6SAndreas Gruenbacher void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
393d3c10f2SBenjamin Marzinski
gfs2_quota_lock_check(struct gfs2_inode * ip,struct gfs2_alloc_parms * ap)40b8fbf471SAbhi Das static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
41b8fbf471SAbhi Das struct gfs2_alloc_parms *ap)
42d82661d9SSteven Whitehouse {
43d82661d9SSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
44d82661d9SSteven Whitehouse int ret;
45174d1232SAndreas Gruenbacher
46174d1232SAndreas Gruenbacher ap->allowed = UINT_MAX; /* Assume we are permitted a whole lot */
474ed0c308SBob Peterson if (capable(CAP_SYS_RESOURCE) ||
484ed0c308SBob Peterson sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
49d82661d9SSteven Whitehouse return 0;
50f4108a60SEric W. Biederman ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
51d82661d9SSteven Whitehouse if (ret)
52d82661d9SSteven Whitehouse return ret;
53fb95d536SBob Peterson if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON &&
54fb95d536SBob Peterson sdp->sd_args.ar_quota != GFS2_QUOTA_QUIET)
55d82661d9SSteven Whitehouse return 0;
56b8fbf471SAbhi Das ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid, ap);
57d82661d9SSteven Whitehouse if (ret)
58d82661d9SSteven Whitehouse gfs2_quota_unlock(ip);
59d82661d9SSteven Whitehouse return ret;
60d82661d9SSteven Whitehouse }
61d82661d9SSteven Whitehouse
62cc632e7fSSteven Whitehouse extern const struct quotactl_ops gfs2_quotactl_ops;
632147dbfdSSteven Whitehouse extern struct shrinker gfs2_qd_shrinker;
642147dbfdSSteven Whitehouse extern struct list_lru gfs2_qd_lru;
65d312fbf6SAndreas Gruenbacher
66d312fbf6SAndreas Gruenbacher void __init gfs2_quota_hash_init(void);
670a7ab79cSAbhijith Das
68b3b94faaSDavid Teigland #endif /* __QUOTA_DOT_H__ */
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