/* SPDX-License-Identifier: GPL-2.0-only */

  /*
   * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.

   * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.

   */
  
  #ifndef __QUOTA_DOT_H__
  #define __QUOTA_DOT_H__

  #include <linux/list_lru.h>

  struct gfs2_inode;
  struct gfs2_sbd;

  #define NO_UID_QUOTA_CHANGE INVALID_UID
  #define NO_GID_QUOTA_CHANGE INVALID_GID

  extern int gfs2_qa_alloc(struct gfs2_inode *ip);

  extern void gfs2_qa_delete(struct gfs2_inode *ip, atomic_t *wcount);

  extern int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);

  extern void gfs2_quota_unhold(struct gfs2_inode *ip);

  extern int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);

  extern void gfs2_quota_unlock(struct gfs2_inode *ip);

  extern int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid,
  			    struct gfs2_alloc_parms *ap);

  extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,

  			      kuid_t uid, kgid_t gid);

  extern int gfs2_quota_sync(struct super_block *sb, int type);

  extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);

  extern int gfs2_quota_init(struct gfs2_sbd *sdp);
  extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
  extern int gfs2_quotad(void *data);

  extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);

  static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
  					struct gfs2_alloc_parms *ap)

  {
  	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
  	int ret;

  
  	ap->allowed = UINT_MAX; /* Assume we are permitted a whole lot */

  	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
  		return 0;

  	ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);

  	if (ret)
  		return ret;
  	if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
  		return 0;

  	ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid, ap);

  	if (ret)
  		gfs2_quota_unlock(ip);
  	return ret;
  }

  extern const struct quotactl_ops gfs2_quotactl_ops;

  extern struct shrinker gfs2_qd_shrinker;
  extern struct list_lru gfs2_qd_lru;

  extern void __init gfs2_quota_hash_init(void);

  #endif /* __QUOTA_DOT_H__ */