1 files changed, 93 insertions, 59 deletions

diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
index 9a9b997e1a0..797fd463627 100644
--- a/fs/xfs/xfs_qm.h
+++ b/fs/xfs/xfs_qm.h
@@ -20,22 +20,27 @@
 
 #include "xfs_dquot_item.h"
 #include "xfs_dquot.h"
-#include "xfs_quota_priv.h"
-#include "xfs_qm_stats.h"
 
-struct xfs_qm;
 struct xfs_inode;
 
-extern struct mutex	xfs_Gqm_lock;
-extern struct xfs_qm	*xfs_Gqm;
-extern kmem_zone_t	*qm_dqzone;
-extern kmem_zone_t	*qm_dqtrxzone;
+extern struct kmem_zone	*xfs_qm_dqtrxzone;
 
 /*
- * Dquot hashtable constants/threshold values.
+ * Number of bmaps that we ask from bmapi when doing a quotacheck.
+ * We make this restriction to keep the memory usage to a minimum.
  */
-#define XFS_QM_HASHSIZE_LOW		(PAGE_SIZE / sizeof(xfs_dqhash_t))
-#define XFS_QM_HASHSIZE_HIGH		((PAGE_SIZE * 4) / sizeof(xfs_dqhash_t))
+#define XFS_DQITER_MAP_SIZE	10
+
+#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
+	!dqp->q_core.d_blk_hardlimit && \
+	!dqp->q_core.d_blk_softlimit && \
+	!dqp->q_core.d_rtb_hardlimit && \
+	!dqp->q_core.d_rtb_softlimit && \
+	!dqp->q_core.d_ino_hardlimit && \
+	!dqp->q_core.d_ino_softlimit && \
+	!dqp->q_core.d_bcount && \
+	!dqp->q_core.d_rtbcount && \
+	!dqp->q_core.d_icount)
 
 /*
  * This defines the unit of allocation of dquots.
@@ -48,36 +53,20 @@ extern kmem_zone_t	*qm_dqtrxzone;
  */
 #define XFS_DQUOT_CLUSTER_SIZE_FSB	(xfs_filblks_t)1
 
-typedef xfs_dqhash_t	xfs_dqlist_t;
-
-/*
- * Quota Manager (global) structure. Lives only in core.
- */
-typedef struct xfs_qm {
-	xfs_dqlist_t	*qm_usr_dqhtable;/* udquot hash table */
-	xfs_dqlist_t	*qm_grp_dqhtable;/* gdquot hash table */
-	uint		 qm_dqhashmask;	 /* # buckets in dq hashtab - 1 */
-	struct list_head qm_dqfrlist;	 /* freelist of dquots */
-	struct mutex	 qm_dqfrlist_lock;
-	int		 qm_dqfrlist_cnt;
-	atomic_t	 qm_totaldquots; /* total incore dquots */
-	uint		 qm_nrefs;	 /* file systems with quota on */
-	kmem_zone_t	*qm_dqzone;	 /* dquot mem-alloc zone */
-	kmem_zone_t	*qm_dqtrxzone;	 /* t_dqinfo of transactions */
-} xfs_qm_t;
-
 /*
  * Various quota information for individual filesystems.
  * The mount structure keeps a pointer to this.
  */
 typedef struct xfs_quotainfo {
-	xfs_inode_t	*qi_uquotaip;	 /* user quota inode */
-	xfs_inode_t	*qi_gquotaip;	 /* group quota inode */
-	struct list_head qi_dqlist;	 /* all dquots in filesys */
-	struct mutex	 qi_dqlist_lock;
+	struct radix_tree_root qi_uquota_tree;
+	struct radix_tree_root qi_gquota_tree;
+	struct radix_tree_root qi_pquota_tree;
+	struct mutex qi_tree_lock;
+	struct xfs_inode	*qi_uquotaip;	/* user quota inode */
+	struct xfs_inode	*qi_gquotaip;	/* group quota inode */
+	struct xfs_inode	*qi_pquotaip;	/* project quota inode */
+	struct list_lru	 qi_lru;
 	int		 qi_dquots;
-	int		 qi_dqreclaims;	 /* a change here indicates
-					    a removal in the dqlist */
 	time_t		 qi_btimelimit;	 /* limit for blks timer */
 	time_t		 qi_itimelimit;	 /* limit for inodes timer */
 	time_t		 qi_rtbtimelimit;/* limit for rt blks timer */
@@ -93,25 +82,67 @@ typedef struct xfs_quotainfo {
 	xfs_qcnt_t	 qi_isoftlimit;	 /* default inode count soft limit */
 	xfs_qcnt_t	 qi_rtbhardlimit;/* default realtime blk hard limit */
 	xfs_qcnt_t	 qi_rtbsoftlimit;/* default realtime blk soft limit */
+	struct shrinker  qi_shrinker;
 } xfs_quotainfo_t;
 
-
-extern void	xfs_trans_mod_dquot(xfs_trans_t *, xfs_dquot_t *, uint, long);
-extern int	xfs_trans_reserve_quota_bydquots(xfs_trans_t *, xfs_mount_t *,
-			xfs_dquot_t *, xfs_dquot_t *, long, long, uint);
-extern void	xfs_trans_dqjoin(xfs_trans_t *, xfs_dquot_t *);
-extern void	xfs_trans_log_dquot(xfs_trans_t *, xfs_dquot_t *);
+static inline struct radix_tree_root *
+xfs_dquot_tree(
+	struct xfs_quotainfo	*qi,
+	int			type)
+{
+	switch (type) {
+	case XFS_DQ_USER:
+		return &qi->qi_uquota_tree;
+	case XFS_DQ_GROUP:
+		return &qi->qi_gquota_tree;
+	case XFS_DQ_PROJ:
+		return &qi->qi_pquota_tree;
+	default:
+		ASSERT(0);
+	}
+	return NULL;
+}
+
+static inline struct xfs_inode *
+xfs_dq_to_quota_inode(struct xfs_dquot *dqp)
+{
+	switch (dqp->dq_flags & XFS_DQ_ALLTYPES) {
+	case XFS_DQ_USER:
+		return dqp->q_mount->m_quotainfo->qi_uquotaip;
+	case XFS_DQ_GROUP:
+		return dqp->q_mount->m_quotainfo->qi_gquotaip;
+	case XFS_DQ_PROJ:
+		return dqp->q_mount->m_quotainfo->qi_pquotaip;
+	default:
+		ASSERT(0);
+	}
+	return NULL;
+}
+
+extern void	xfs_trans_mod_dquot(struct xfs_trans *,
+					struct xfs_dquot *, uint, long);
+extern int	xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
+			struct xfs_mount *, struct xfs_dquot *,
+			struct xfs_dquot *, struct xfs_dquot *,
+			long, long, uint);
+extern void	xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);
+extern void	xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);
 
 /*
- * We keep the usr and grp dquots separately so that locking will be easier
- * to do at commit time. All transactions that we know of at this point
+ * We keep the usr, grp, and prj dquots separately so that locking will be
+ * easier to do at commit time. All transactions that we know of at this point
  * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
  */
+enum {
+	XFS_QM_TRANS_USR = 0,
+	XFS_QM_TRANS_GRP,
+	XFS_QM_TRANS_PRJ,
+	XFS_QM_TRANS_DQTYPES
+};
 #define XFS_QM_TRANS_MAXDQS		2
-typedef struct xfs_dquot_acct {
-	xfs_dqtrx_t	dqa_usrdquots[XFS_QM_TRANS_MAXDQS];
-	xfs_dqtrx_t	dqa_grpdquots[XFS_QM_TRANS_MAXDQS];
-} xfs_dquot_acct_t;
+struct xfs_dquot_acct {
+	struct xfs_dqtrx	dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];
+};
 
 /*
  * Users are allowed to have a usage exceeding their softlimit for
@@ -125,22 +156,25 @@ typedef struct xfs_dquot_acct {
 #define XFS_QM_IWARNLIMIT	5
 #define XFS_QM_RTBWARNLIMIT	5
 
-extern void		xfs_qm_destroy_quotainfo(xfs_mount_t *);
-extern int		xfs_qm_quotacheck(xfs_mount_t *);
-extern int		xfs_qm_write_sb_changes(xfs_mount_t *, __int64_t);
+extern void		xfs_qm_destroy_quotainfo(struct xfs_mount *);
+extern int		xfs_qm_quotacheck(struct xfs_mount *);
+extern int		xfs_qm_write_sb_changes(struct xfs_mount *, __int64_t);
 
 /* dquot stuff */
-extern int		xfs_qm_dqpurge_all(xfs_mount_t *, uint);
-extern void		xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
+extern void		xfs_qm_dqpurge_all(struct xfs_mount *, uint);
+extern void		xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint);
 
 /* quota ops */
-extern int		xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
-extern int		xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint,
-					fs_disk_quota_t *);
-extern int		xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint,
-					fs_disk_quota_t *);
-extern int		xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *);
-extern int		xfs_qm_scall_quotaon(xfs_mount_t *, uint);
-extern int		xfs_qm_scall_quotaoff(xfs_mount_t *, uint);
+extern int		xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
+extern int		xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t,
+					uint, struct fs_disk_quota *);
+extern int		xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
+					struct fs_disk_quota *);
+extern int		xfs_qm_scall_getqstat(struct xfs_mount *,
+					struct fs_quota_stat *);
+extern int		xfs_qm_scall_getqstatv(struct xfs_mount *,
+					struct fs_quota_statv *);
+extern int		xfs_qm_scall_quotaon(struct xfs_mount *, uint);
+extern int		xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
 
 #endif /* __XFS_QM_H__ */