linux-stable/fs/gfs2/quota.h
Thomas Gleixner 7336d0e654 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398
Based on 1 normalized pattern(s):

  this copyrighted material is made available to anyone wishing to use
  modify copy or redistribute it subject to the terms and conditions
  of the gnu general public license version 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 44 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081038.653000175@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:12 +02:00

65 lines
2 KiB
C

/* 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__ */