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-rw-r--r--include/linux/quotaops.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 0c8f9fe462a..38218c1334b 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -14,6 +14,8 @@
#include <linux/fs.h>
+#define sb_dqopt(sb) (&(sb)->s_dquot)
+
#if defined(CONFIG_QUOTA)
/*
@@ -52,6 +54,25 @@ void vfs_dq_drop(struct inode *inode);
int vfs_dq_transfer(struct inode *inode, struct iattr *iattr);
int vfs_dq_quota_on_remount(struct super_block *sb);
+#define sb_dqinfo(sb, type) (sb_dqopt(sb)->info+(type))
+
+/*
+ * Functions for checking status of quota
+ */
+
+#define sb_has_quota_enabled(sb, type) ((type)==USRQUOTA ? \
+ (sb_dqopt(sb)->flags & DQUOT_USR_ENABLED) : (sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED))
+
+#define sb_any_quota_enabled(sb) (sb_has_quota_enabled(sb, USRQUOTA) | \
+ sb_has_quota_enabled(sb, GRPQUOTA))
+
+#define sb_has_quota_suspended(sb, type) \
+ ((type) == USRQUOTA ? (sb_dqopt(sb)->flags & DQUOT_USR_SUSPENDED) : \
+ (sb_dqopt(sb)->flags & DQUOT_GRP_SUSPENDED))
+
+#define sb_any_quota_suspended(sb) (sb_has_quota_suspended(sb, USRQUOTA) | \
+ sb_has_quota_suspended(sb, GRPQUOTA))
+
/*
* Operations supported for diskquotas.
*/
@@ -159,6 +180,11 @@ static inline int vfs_dq_off(struct super_block *sb, int remount)
#else
+#define sb_has_quota_enabled(sb, type) 0
+#define sb_any_quota_enabled(sb) 0
+#define sb_has_quota_suspended(sb, type) 0
+#define sb_any_quota_suspended(sb) 0
+
/*
* NO-OP when quota not configured.
*/