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quota: sb_quota state flags cleanup

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

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Dmitry Monakhov 2010-02-16 08:31:49 +03:00 committed by Jan Kara
parent 8696391896
commit ad1e6e8da9
3 changed files with 26 additions and 23 deletions
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3
fs/quota/dquot.c
View File

@ -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) {

15
include/linux/quota.h
View File

@ -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

31
include/linux/quotaops.h
View File

@ -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);
}
/*