From: Dmitry Monakhov <dmonakhov@openvz.org>
To: linux-fsdevel@vger.kernel.org
Cc: jack@suse.cz, Dmitry Monakhov <dmonakhov@openvz.org>
Subject: [PATCH] quota: sb_quota state flags cleanup
Date: Tue, 2 Feb 2010 17:07:49 +0300 [thread overview]
Message-ID: <1265119669-2557-1-git-send-email-dmonakhov@openvz.org> (raw)
- remove hardcoded USRQUOTA/GRPQUOTA flags
- convert int to bool for appropriate functions
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
---
include/linux/quota.h | 15 +++++++--------
include/linux/quotaops.h | 31 +++++++++++++++++--------------
2 files changed, 24 insertions(+), 22 deletions(-)
diff --git a/include/linux/quota.h b/include/linux/quota.h
index a6861f1..1f1a3a1 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -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
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 3ebb231..c0ee7c0 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -83,53 +83,56 @@ 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);
}
/*
--
1.6.3.3
next reply other threads:[~2010-02-02 14:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-02 14:07 Dmitry Monakhov [this message]
2010-02-02 15:40 ` [PATCH] quota: sb_quota state flags cleanup Jan Kara
2010-02-02 16:07 ` Dmitry Monakhov
2010-02-02 16:15 ` Jan Kara
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