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Commit ad1e6e8d authored by Dmitry Monakhov's avatar Dmitry Monakhov Committed by Jan Kara
Browse files

quota: sb_quota state flags cleanup 



- remove hardcoded USRQUOTA/GRPQUOTA flags
- convert int to bool for appropriate functions

Signed-off-by: default avatarDmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 86963918

fs/quota/dquot.c

+2 −1
Original line number Diff line number Diff line
@@ -1301,7 +1301,7 @@ int dquot_initialize(struct inode *inode, int type) 
{

	unsigned int id = 0;

	int cnt, ret = 0;

	struct dquot *got[MAXQUOTAS] = { NULL, NULL };

	struct dquot *got[MAXQUOTAS];

	struct super_block *sb = inode->i_sb;

	qsize_t rsv;
@@ -1312,6 +1312,7 @@ int dquot_initialize(struct inode *inode, int type) 


	/* First get references to structures we might need. */

	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {

		got[cnt] = NULL;

		if (type != -1 && cnt != type)

			continue;

		switch (cnt) {

include/linux/quota.h

+7 −8
Original line number Diff line number Diff line
@@ -357,26 +357,25 @@ enum { 
#define DQUOT_STATE_FLAGS	(DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED | \

				 DQUOT_SUSPENDED)

/* Other quota flags */

#define DQUOT_QUOTA_SYS_FILE	(1 << 6)	/* Quota file is a special

#define DQUOT_STATE_LAST	(_DQUOT_STATE_FLAGS * MAXQUOTAS)

#define DQUOT_QUOTA_SYS_FILE	(1 << DQUOT_STATE_LAST)

						/* Quota file is a special

						 * system file and user cannot

						 * touch it. Filesystem is

						 * responsible for setting

						 * S_NOQUOTA, S_NOATIME flags

						 */

#define DQUOT_NEGATIVE_USAGE	(1 << 7)	/* Allow negative quota usage */

#define DQUOT_NEGATIVE_USAGE	(1 << (DQUOT_STATE_LAST + 1))

					       /* Allow negative quota usage */



static inline unsigned int dquot_state_flag(unsigned int flags, int type)

{

	if (type == USRQUOTA)

		return flags;

	return flags << _DQUOT_STATE_FLAGS;

	return flags << _DQUOT_STATE_FLAGS * type;

}



static inline unsigned int dquot_generic_flag(unsigned int flags, int type)

{

	if (type == USRQUOTA)

		return flags;

	return flags >> _DQUOT_STATE_FLAGS;

	return (flags >> _DQUOT_STATE_FLAGS * type) & DQUOT_STATE_FLAGS;

}



#ifdef CONFIG_QUOTA_NETLINK_INTERFACE

include/linux/quotaops.h

+17 −14
Original line number Diff line number Diff line
@@ -79,53 +79,56 @@ static inline struct mem_dqinfo *sb_dqinfo(struct super_block *sb, int type) 
 * Functions for checking status of quota

 */



static inline int sb_has_quota_usage_enabled(struct super_block *sb, int type)

static inline bool sb_has_quota_usage_enabled(struct super_block *sb, int type)

{

	return sb_dqopt(sb)->flags &

				dquot_state_flag(DQUOT_USAGE_ENABLED, type);

}



static inline int sb_has_quota_limits_enabled(struct super_block *sb, int type)

static inline bool sb_has_quota_limits_enabled(struct super_block *sb, int type)

{

	return sb_dqopt(sb)->flags &

				dquot_state_flag(DQUOT_LIMITS_ENABLED, type);

}



static inline int sb_has_quota_suspended(struct super_block *sb, int type)

static inline bool sb_has_quota_suspended(struct super_block *sb, int type)

{

	return sb_dqopt(sb)->flags &

				dquot_state_flag(DQUOT_SUSPENDED, type);

}



static inline int sb_any_quota_suspended(struct super_block *sb)

static inline unsigned sb_any_quota_suspended(struct super_block *sb)

{

	return sb_has_quota_suspended(sb, USRQUOTA) ||

		sb_has_quota_suspended(sb, GRPQUOTA);

	unsigned type, tmsk = 0;

	for (type = 0; type < MAXQUOTAS; type++)

		tmsk |= sb_has_quota_suspended(sb, type) << type;

	return tmsk;

}



/* Does kernel know about any quota information for given sb + type? */

static inline int sb_has_quota_loaded(struct super_block *sb, int type)

static inline bool sb_has_quota_loaded(struct super_block *sb, int type)

{

	/* Currently if anything is on, then quota usage is on as well */

	return sb_has_quota_usage_enabled(sb, type);

}



static inline int sb_any_quota_loaded(struct super_block *sb)

static inline unsigned sb_any_quota_loaded(struct super_block *sb)

{

	return sb_has_quota_loaded(sb, USRQUOTA) ||

		sb_has_quota_loaded(sb, GRPQUOTA);

	unsigned type, tmsk = 0;

	for (type = 0; type < MAXQUOTAS; type++)

		tmsk |= sb_has_quota_loaded(sb, type) << type;

	return	tmsk;

}



static inline int sb_has_quota_active(struct super_block *sb, int type)

static inline bool sb_has_quota_active(struct super_block *sb, int type)

{

	return sb_has_quota_loaded(sb, type) &&

	       !sb_has_quota_suspended(sb, type);

}



static inline int sb_any_quota_active(struct super_block *sb)

static inline unsigned sb_any_quota_active(struct super_block *sb)

{

	return sb_has_quota_active(sb, USRQUOTA) ||

	       sb_has_quota_active(sb, GRPQUOTA);

	return sb_any_quota_loaded(sb) & ~sb_any_quota_suspended(sb);

}



/*