quota: Make _SUSPENDED just a flag

Upto now, DQUOT_USR_SUSPENDED behaved like a state - i.e., either quota
was enabled or suspended or none. Now allowed states are 0, ENABLED,
ENABLED | SUSPENDED. This will be useful later when we implement separate
enabling of quota usage tracking and limits enforcement because we need to
keep track of a state which has been suspended.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/dquot.c b/fs/dquot.c
index c883306..22340c6 100644 (file)
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1570,18 +1570,20 @@ static inline void reset_enable_flags(struct quota_info *dqopt, int type,
 {
        switch (type) {
                case USRQUOTA:
-                       dqopt->flags &= ~DQUOT_USR_ENABLED;
                        if (remount)
                                dqopt->flags |= DQUOT_USR_SUSPENDED;
-                       else
+                       else {
+                               dqopt->flags &= ~DQUOT_USR_ENABLED;
                                dqopt->flags &= ~DQUOT_USR_SUSPENDED;
+                       }
                        break;
                case GRPQUOTA:
-                       dqopt->flags &= ~DQUOT_GRP_ENABLED;
                        if (remount)
                                dqopt->flags |= DQUOT_GRP_SUSPENDED;
-                       else
+                       else {
+                               dqopt->flags &= ~DQUOT_GRP_ENABLED;
                                dqopt->flags &= ~DQUOT_GRP_SUSPENDED;
+                       }
                        break;
        }
 }

diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index adcc7ba..ffd9707 100644 (file)
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -67,8 +67,10 @@ static inline struct mem_dqinfo *sb_dqinfo(struct super_block *sb, int type)
 static inline int sb_has_quota_enabled(struct super_block *sb, int type)
 {
        if (type == USRQUOTA)
-               return sb_dqopt(sb)->flags & DQUOT_USR_ENABLED;
-       return sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED;
+               return (sb_dqopt(sb)->flags & DQUOT_USR_ENABLED)
+                       && !(sb_dqopt(sb)->flags & DQUOT_USR_SUSPENDED);
+       return (sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED)
+               && !(sb_dqopt(sb)->flags & DQUOT_GROUP_SUSPENDED);
 }
 
 static inline int sb_any_quota_enabled(struct super_block *sb)