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  $   ˆÅÄ„q¯Ãa–Ým_J*j"Tâ€jà…p.)‹FÿÂ )D    /* SPDX-License-Identifier: GPL-2.0 */
/*
 * Definitions for diskquota-operations. When diskquota is configured these
 * macros expand to the right source-code.
 *
 * Author:  Marco van Wieringen <mvw@planets.elm.net>
 */
#ifndef _LINUX_QUOTAOPS_
#define _LINUX_QUOTAOPS_

#include <linux/fs.h>

#define DQUOT_SPACE_WARN	0x1
#define DQUOT_SPACE_RESERVE	0x2
#define DQUOT_SPACE_NOFAIL	0x4

static inline struct quota_info *sb_dqopt(struct super_block *sb)
{
	return &sb->s_dquot;
}

/* i_mutex must being held */
static inline bool is_quota_modification(struct mnt_idmap *idmap,
					 struct inode *inode, struct iattr *ia)
{
	return ((ia->ia_valid & ATTR_SIZE) ||
		i_uid_needs_update(idmap, ia, inode) ||
		i_gid_needs_update(idmap, ia, inode));
}

#if defined(CONFIG_QUOTA)

#define quota_error(sb, fmt, args...) \
	__quota_error((sb), __func__, fmt , ## args)

extern __printf(3, 4)
void __quota_error(struct super_block *sb, const char *func,
		   const char *fmt, ...);

/*
 * declaration of quota_function calls in kernel.
 */
int dquot_initialize(struct inode *inode);
bool dquot_initialize_needed(struct inode *inode);
void dquot_drop(struct inode *inode);
struct dquot *dqget(struct super_block *sb, struct kqid qid);
static inline struct dquot *dqgrab(struct dquot *dquot)
{
	/* Make sure someone else has active reference to dquot */
	WARN_ON_ONCE(!atomic_read(&dquot->dq_count));
	WARN_ON_ONCE(!test_bit(DQ_ACTIVE_B, &dquot->dq_flags));
	atomic_inc(&dquot->dq_count);
	return dquot;
}

static inline bool dquot_is_busy(struct dquot *dquot)
{
	if (test_bit(DQ_MOD_B, &dquot->dq_flags))
		return true;
	if (atomic_read(&dquot->dq_count) > 1)
		return true;
	return false;
}

void dqput(struct dquot *dquot);
int dquot_scan_active(struct super_block *sb,
		      int (*fn)(struct dquot *dquot, unsigned long priv),
		      unsigned long priv);
struct dquot *dquot_alloc(struct super_block *sb, int type);
void dquot_destroy(struct dquot *dquot);

int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags);
void __dquot_free_space(struct inode *inode, qsize_t number, int flags);

int dquot_alloc_inode(struct inode *inode);

int dquot_claim_space_nodirty(struct inode *inode, qsize_t number);
void dquot_free_inode(struct inode *inode);
void dquot_reclaim_space_nodirty(struct inode *inode, qsize_t number);

int dquot_disable(struct super_block *sb, int type, unsigned int flags);
/* Suspend quotas on remount RO */
static inline int dquot_suspend(struct super_block *sb, int type)
{
	return dquot_disable(sb, type, DQUOT_SUSPENDED);
}
int dquot_resume(struct super_block *sb, int type);

int dquot_commit(struct dquot *dquot);
int dquot_acquire(struct dquot *dquot);
int dquot_release(struct dquot *dquot);
int dquot_commit_info(struct super_block *sb, int type);
int dquot_get_next_id(struct super_block *sb, struct kqid *qid);
int dquot_mark_dquot_dirty(struct dquot *dquot);

int dquot_file_open(struct inode *inode, struct file *file);

int dquot_load_quota_sb(struct super_block *sb, int type, int format_id,
	unsigned int flags);
int dquot_load_quota_inode(struct inode *inode, int type, int format_id,
	unsigned int flags);
int dquot_quota_on(struct super_block *sb, int type, int format_id,
	const struct path *path);
int dquot_quota_on_mount(struct super_block *sb, char *qf_name,
 	int format_id, int type);
int dquot_quota_off(struct super_block *sb, int type);
int dquot_writeback_dquots(struct super_block *sb, int type);
int dquot_quota_sync(struct super_block *sb, int type);
int dquot_get_state(struct super_block *sb, struct qc_state *state);
int dquot_set_dqinfo(struct super_block *sb, int type, struct qc_info *ii);
int dquot_get_dqblk(struct super_block *sb, struct kqid id,
		struct qc_dqblk *di);
int dquot_get_next_dqblk(struct super_block *sb, struct kqid *id,
		struct qc_dqblk *di);
int dquot_set_dqblk(struct super_block *sb, struct kqid id,
		struct qc_dqblk *di);

int __dquot_transfer(struct inode *inode, struct dquot **transfer_to);
int dquot_transfer(struct mnt_idmap *idmap, struc