quota: Allow negative usage of space and inodes

[pandora-kernel.git] / fs / dquot.c

diff --git a/fs/dquot.c b/fs/dquot.c
index 74185c3..9c78ffe 100644 (file)
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -847,7 +847,8 @@ static inline void dquot_incr_space(struct dquot *dquot, qsize_t number)
 
 static inline void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
 {
-       if (dquot->dq_dqb.dqb_curinodes > number)
+       if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
+           dquot->dq_dqb.dqb_curinodes >= number)
                dquot->dq_dqb.dqb_curinodes -= number;
        else
                dquot->dq_dqb.dqb_curinodes = 0;
@@ -858,7 +859,8 @@ static inline void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
 
 static inline void dquot_decr_space(struct dquot *dquot, qsize_t number)
 {
-       if (dquot->dq_dqb.dqb_curspace > number)
+       if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
+           dquot->dq_dqb.dqb_curspace >= number)
                dquot->dq_dqb.dqb_curspace -= number;
        else
                dquot->dq_dqb.dqb_curspace = 0;