xfs: convert the dquot free list to use list heads

Convert the dquot free list on the filesystem to use listhead
infrastructure rather than the roll-your-own in the quota code.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

6 files changed, 72 insertions, 165 deletions

diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index ad64ab62d9c..02dac0a5f1e 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -101,7 +101,7 @@ xfs_qm_dqinit(
          * No need to re-initialize these if this is a reclaimed dquot.
          */
         if (brandnewdquot) {
-                dqp->dq_flnext = dqp->dq_flprev = dqp;
+                INIT_LIST_HEAD(&dqp->q_freelist);
                 mutex_init(&dqp->q_qlock);
                 init_waitqueue_head(&dqp->q_pinwait);
 
@@ -119,20 +119,20 @@ xfs_qm_dqinit(
                  * Only the q_core portion was zeroed in dqreclaim_one().
                  * So, we need to reset others.
                  */
-                 dqp->q_nrefs = 0;
-                 dqp->q_blkno = 0;
-                 INIT_LIST_HEAD(&dqp->q_mplist);
-                 INIT_LIST_HEAD(&dqp->q_hashlist);
-                 dqp->q_bufoffset = 0;
-                 dqp->q_fileoffset = 0;
-                 dqp->q_transp = NULL;
-                 dqp->q_gdquot = NULL;
-                 dqp->q_res_bcount = 0;
-                 dqp->q_res_icount = 0;
-                 dqp->q_res_rtbcount = 0;
-                 atomic_set(&dqp->q_pincount, 0);
-                 dqp->q_hash = NULL;
-                 ASSERT(dqp->dq_flnext == dqp->dq_flprev);
+                dqp->q_nrefs = 0;
+                dqp->q_blkno = 0;
+                INIT_LIST_HEAD(&dqp->q_mplist);
+                INIT_LIST_HEAD(&dqp->q_hashlist);
+                dqp->q_bufoffset = 0;
+                dqp->q_fileoffset = 0;
+                dqp->q_transp = NULL;
+                dqp->q_gdquot = NULL;
+                dqp->q_res_bcount = 0;
+                dqp->q_res_icount = 0;
+                dqp->q_res_rtbcount = 0;
+                atomic_set(&dqp->q_pincount, 0);
+                dqp->q_hash = NULL;
+                ASSERT(list_empty(&dqp->q_freelist));
 
                 trace_xfs_dqreuse(dqp);
         }
@@ -158,7 +158,7 @@ void
 xfs_qm_dqdestroy(
         xfs_dquot_t     *dqp)
 {
-        ASSERT(! XFS_DQ_IS_ON_FREELIST(dqp));
+        ASSERT(list_empty(&dqp->q_freelist));
 
         mutex_destroy(&dqp->q_qlock);
         sv_destroy(&dqp->q_pinwait);
@@ -775,8 +775,8 @@ xfs_qm_dqlookup(
 
                         xfs_dqlock(dqp);
                         if (dqp->q_nrefs == 0) {
-                                ASSERT (XFS_DQ_IS_ON_FREELIST(dqp));
-                                if (! xfs_qm_freelist_lock_nowait(xfs_Gqm)) {
+                                ASSERT(!list_empty(&dqp->q_freelist));
+                                if (!mutex_trylock(&xfs_Gqm->qm_dqfrlist_lock)) {
                                         trace_xfs_dqlookup_want(dqp);
 
                                         /*
@@ -786,7 +786,7 @@ xfs_qm_dqlookup(
                                          */
                                         dqp->dq_flags |= XFS_DQ_WANT;
                                         xfs_dqunlock(dqp);
-                                        xfs_qm_freelist_lock(xfs_Gqm);
+                                        mutex_lock(&xfs_Gqm->qm_dqfrlist_lock);
                                         xfs_dqlock(dqp);
                                         dqp->dq_flags &= ~(XFS_DQ_WANT);
                                 }
@@ -801,27 +801,20 @@ xfs_qm_dqlookup(
 
                         if (flist_locked) {
                                 if (dqp->q_nrefs != 0) {
-                                        xfs_qm_freelist_unlock(xfs_Gqm);
+                                        mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
                                         flist_locked = B_FALSE;
                                 } else {
-                                        /*
-                                         * take it off the freelist
-                                         */
+                                        /* take it off the freelist */
                                         trace_xfs_dqlookup_freelist(dqp);
-                                        XQM_FREELIST_REMOVE(dqp);
-                                        /* xfs_qm_freelist_print(&(xfs_Gqm->
-                                                        qm_dqfreelist),
-                                                        "after removal"); */
+                                        list_del_init(&dqp->q_freelist);
+                                        xfs_Gqm->qm_dqfrlist_cnt--;
                                 }
                         }
 
-                        /*
-                         * grab a reference
-                         */
                         XFS_DQHOLD(dqp);
 
                         if (flist_locked)
-                                xfs_qm_freelist_unlock(xfs_Gqm);
+                                mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
                         /*
                          * move the dquot to the front of the hashchain
                          */
@@ -1075,10 +1068,10 @@ xfs_qm_dqput(
          * drop the dqlock and acquire the freelist and dqlock
          * in the right order; but try to get it out-of-order first
          */
-        if (! xfs_qm_freelist_lock_nowait(xfs_Gqm)) {
+        if (!mutex_trylock(&xfs_Gqm->qm_dqfrlist_lock)) {
                 trace_xfs_dqput_wait(dqp);
                 xfs_dqunlock(dqp);
-                xfs_qm_freelist_lock(xfs_Gqm);
+                mutex_lock(&xfs_Gqm->qm_dqfrlist_lock);
                 xfs_dqlock(dqp);
         }
 
@@ -1089,10 +1082,8 @@ xfs_qm_dqput(
                 if (--dqp->q_nrefs == 0) {
                         trace_xfs_dqput_free(dqp);
 
-                        /*
-                         * insert at end of the freelist.
-                         */
-                        XQM_FREELIST_INSERT(&(xfs_Gqm->qm_dqfreelist), dqp);
+                        list_add_tail(&dqp->q_freelist, &xfs_Gqm->qm_dqfrlist);
+                        xfs_Gqm->qm_dqfrlist_cnt++;
 
                         /*
                          * If we just added a udquot to the freelist, then
@@ -1107,10 +1098,6 @@ xfs_qm_dqput(
                                 xfs_dqlock(gdqp);
                                 dqp->q_gdquot = NULL;
                         }
-
-                        /* xfs_qm_freelist_print(&(xfs_Gqm->qm_dqfreelist),
-                           "@@@@@++ Free list (after append) @@@@@+");
-                           */
                 }
                 xfs_dqunlock(dqp);
 
@@ -1122,7 +1109,7 @@ xfs_qm_dqput(
                         break;
                 dqp = gdqp;
         }
-        xfs_qm_freelist_unlock(xfs_Gqm);
+        mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
 }
 
 /*
@@ -1396,7 +1383,7 @@ xfs_qm_dqpurge(
                 return (1);
         }
 
-        ASSERT(XFS_DQ_IS_ON_FREELIST(dqp));
+        ASSERT(!list_empty(&dqp->q_freelist));
 
         /*
          * If we're turning off quotas, we have to make sure that, for
@@ -1450,7 +1437,7 @@ xfs_qm_dqpurge(
          * XXX Move this to the front of the freelist, if we can get the
          * freelist lock.
          */
-        ASSERT(XFS_DQ_IS_ON_FREELIST(dqp));
+        ASSERT(!list_empty(&dqp->q_freelist));
 
         dqp->q_mount = NULL;
         dqp->q_hash = NULL;
diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
index 169b3c24af7..56fb21d81bc 100644
--- a/fs/xfs/quota/xfs_dquot.h
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -50,8 +50,6 @@ struct xfs_trans;
  * iterations because of locking considerations.
  */
 typedef struct xfs_dqmarker {
-        struct xfs_dquot*dqm_flnext;    /* link to freelist: must be first */
-        struct xfs_dquot*dqm_flprev;
         uint             dqm_flags;     /* various flags (XFS_DQ_*) */
 } xfs_dqmarker_t;
 
@@ -60,8 +58,9 @@ typedef struct xfs_dqmarker {
  */
 typedef struct xfs_dquot {
         xfs_dqmarker_t   q_lists;       /* list ptrs, q_flags (marker) */
+        struct list_head q_freelist;    /* global free list of dquots */
         struct list_head q_mplist;      /* mount's list of dquots */
-        struct list_head q_hashlist;    /* mount's list of dquots */
+        struct list_head q_hashlist;    /* gloabl hash list of dquots */
         xfs_dqhash_t    *q_hash;        /* the hashchain header */
         struct xfs_mount*q_mount;       /* filesystem this relates to */
         struct xfs_trans*q_transp;      /* trans this belongs to currently */
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 08e97f1ef65..c40ca94e23e 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -67,9 +67,6 @@ static cred_t	xfs_zerocr;
 STATIC void     xfs_qm_list_init(xfs_dqlist_t *, char *, int);
 STATIC void     xfs_qm_list_destroy(xfs_dqlist_t *);
 
-STATIC void     xfs_qm_freelist_init(xfs_frlist_t *);
-STATIC void     xfs_qm_freelist_destroy(xfs_frlist_t *);
-
 STATIC int      xfs_qm_init_quotainos(xfs_mount_t *);
 STATIC int      xfs_qm_init_quotainfo(xfs_mount_t *);
 STATIC int      xfs_qm_shake(int, gfp_t);
@@ -148,7 +145,9 @@ xfs_Gqm_init(void)
         /*
          * Freelist of all dquots of all file systems
          */
-        xfs_qm_freelist_init(&(xqm->qm_dqfreelist));
+        INIT_LIST_HEAD(&xqm->qm_dqfrlist);
+        xqm->qm_dqfrlist_cnt = 0;
+        mutex_init(&xqm->qm_dqfrlist_lock);
 
         /*
          * dquot zone. we register our own low-memory callback.
@@ -193,6 +192,7 @@ STATIC void
 xfs_qm_destroy(
         struct xfs_qm   *xqm)
 {
+        struct xfs_dquot *dqp, *n;
         int             hsize, i;
 
         ASSERT(xqm != NULL);
@@ -208,7 +208,21 @@ xfs_qm_destroy(
         xqm->qm_usr_dqhtable = NULL;
         xqm->qm_grp_dqhtable = NULL;
         xqm->qm_dqhashmask = 0;
-        xfs_qm_freelist_destroy(&(xqm->qm_dqfreelist));
+
+        /* frlist cleanup */
+        mutex_lock(&xqm->qm_dqfrlist_lock);
+        list_for_each_entry_safe(dqp, n, &xqm->qm_dqfrlist, q_freelist) {
+                xfs_dqlock(dqp);
+#ifdef QUOTADEBUG
+                cmn_err(CE_DEBUG, "FREELIST destroy 0x%p", dqp);
+#endif
+                list_del_init(&dqp->q_freelist);
+                xfs_Gqm->qm_dqfrlist_cnt--;
+                xfs_dqunlock(dqp);
+                xfs_qm_dqdestroy(dqp);
+        }
+        mutex_unlock(&xqm->qm_dqfrlist_lock);
+        mutex_destroy(&xqm->qm_dqfrlist_lock);
 #ifdef DEBUG
         mutex_destroy(&qcheck_lock);
 #endif
@@ -260,7 +274,7 @@ STATIC void
 xfs_qm_rele_quotafs_ref(
         struct xfs_mount *mp)
 {
-        xfs_dquot_t     *dqp, *nextdqp;
+        xfs_dquot_t     *dqp, *n;
 
         ASSERT(xfs_Gqm);
         ASSERT(xfs_Gqm->qm_nrefs > 0);
@@ -268,26 +282,24 @@ xfs_qm_rele_quotafs_ref(
         /*
          * Go thru the freelist and destroy all inactive dquots.
          */
-        xfs_qm_freelist_lock(xfs_Gqm);
+        mutex_lock(&xfs_Gqm->qm_dqfrlist_lock);
 
-        for (dqp = xfs_Gqm->qm_dqfreelist.qh_next;
-             dqp != (xfs_dquot_t *)&(xfs_Gqm->qm_dqfreelist); ) {
+        list_for_each_entry_safe(dqp, n, &xfs_Gqm->qm_dqfrlist, q_freelist) {
                 xfs_dqlock(dqp);
-                nextdqp = dqp->dq_flnext;
                 if (dqp->dq_flags & XFS_DQ_INACTIVE) {
                         ASSERT(dqp->q_mount == NULL);
                         ASSERT(! XFS_DQ_IS_DIRTY(dqp));
                         ASSERT(list_empty(&dqp->q_hashlist));
                         ASSERT(list_empty(&dqp->q_mplist));
-                        XQM_FREELIST_REMOVE(dqp);
+                        list_del_init(&dqp->q_freelist);
+                        xfs_Gqm->qm_dqfrlist_cnt--;
                         xfs_dqunlock(dqp);
                         xfs_qm_dqdestroy(dqp);
                 } else {
                         xfs_dqunlock(dqp);
                 }
-                dqp = nextdqp;
         }
-        xfs_qm_freelist_unlock(xfs_Gqm);
+        mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
 
         /*
          * Destroy the entire XQM. If somebody mounts with quotaon, this'll
@@ -1943,9 +1955,9 @@ xfs_qm_dqreclaim_one(void)
 
         /* lockorder: hashchainlock, freelistlock, mplistlock, dqlock, dqflock */
 startagain:
-        xfs_qm_freelist_lock(xfs_Gqm);
+        mutex_lock(&xfs_Gqm->qm_dqfrlist_lock);
 
-        FOREACH_DQUOT_IN_FREELIST(dqp, &(xfs_Gqm->qm_dqfreelist)) {
+        list_for_each_entry(dqp, &xfs_Gqm->qm_dqfrlist, q_freelist) {
                 struct xfs_mount *mp = dqp->q_mount;
                 xfs_dqlock(dqp);
 
@@ -1961,7 +1973,7 @@ startagain:
                         trace_xfs_dqreclaim_want(dqp);
 
                         xfs_dqunlock(dqp);
-                        xfs_qm_freelist_unlock(xfs_Gqm);
+                        mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
                         if (++restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
                                 return NULL;
                         XQM_STATS_INC(xqmstats.xs_qm_dqwants);
@@ -1978,7 +1990,8 @@ startagain:
                         ASSERT(! XFS_DQ_IS_DIRTY(dqp));
                         ASSERT(list_empty(&dqp->q_hashlist));
                         ASSERT(list_empty(&dqp->q_mplist));
-                        XQM_FREELIST_REMOVE(dqp);
+                        list_del_init(&dqp->q_freelist);
+                        xfs_Gqm->qm_dqfrlist_cnt--;
                         xfs_dqunlock(dqp);
                         dqpout = dqp;
                         XQM_STATS_INC(xqmstats.xs_qm_dqinact_reclaims);
@@ -2043,7 +2056,7 @@ startagain:
                         mutex_unlock(&dqp->q_hash->qh_lock);
                         xfs_dqfunlock(dqp);
                         xfs_dqunlock(dqp);
-                        xfs_qm_freelist_unlock(xfs_Gqm);
+                        mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
                         if (restarts++ >= XFS_QM_RECLAIM_MAX_RESTARTS)
                                 return NULL;
                         goto startagain;
@@ -2055,7 +2068,8 @@ startagain:
                 mp->m_quotainfo->qi_dqreclaims++;
                 list_del_init(&dqp->q_hashlist);
                 dqp->q_hash->qh_version++;
-                XQM_FREELIST_REMOVE(dqp);
+                list_del_init(&dqp->q_freelist);
+                xfs_Gqm->qm_dqfrlist_cnt--;
                 dqpout = dqp;
                 mutex_unlock(&mp->m_quotainfo->qi_dqlist_lock);
                 mutex_unlock(&dqp->q_hash->qh_lock);
@@ -2067,7 +2081,7 @@ dqfunlock:
                 if (restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
                         return NULL;
         }
-        xfs_qm_freelist_unlock(xfs_Gqm);
+        mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
         return dqpout;
 }
 
@@ -2110,7 +2124,7 @@ xfs_qm_shake(int nr_to_scan, gfp_t gfp_mask)
         if (!xfs_Gqm)
                 return 0;
 
-        nfree = xfs_Gqm->qm_dqfreelist.qh_nelems; /* free dquots */
+        nfree = xfs_Gqm->qm_dqfrlist_cnt; /* free dquots */
         /* incore dquots in all f/s's */
         ndqused = atomic_read(&xfs_Gqm->qm_totaldquots) - nfree;
 
@@ -2550,66 +2564,3 @@ xfs_qm_vop_create_dqattach(
         }
 }
 
-/* ------------- list stuff -----------------*/
-STATIC void
-xfs_qm_freelist_init(xfs_frlist_t *ql)
-{
-        ql->qh_next = ql->qh_prev = (xfs_dquot_t *) ql;
-        mutex_init(&ql->qh_lock);
-        ql->qh_version = 0;
-        ql->qh_nelems = 0;
-}
-
-STATIC void
-xfs_qm_freelist_destroy(xfs_frlist_t *ql)
-{
-        xfs_dquot_t     *dqp, *nextdqp;
-
-        mutex_lock(&ql->qh_lock);
-        for (dqp = ql->qh_next;
-             dqp != (xfs_dquot_t *)ql; ) {
-                xfs_dqlock(dqp);
-                nextdqp = dqp->dq_flnext;
-#ifdef QUOTADEBUG
-                cmn_err(CE_DEBUG, "FREELIST destroy 0x%p", dqp);
-#endif
-                XQM_FREELIST_REMOVE(dqp);
-                xfs_dqunlock(dqp);
-                xfs_qm_dqdestroy(dqp);
-                dqp = nextdqp;
-        }
-        mutex_unlock(&ql->qh_lock);
-        mutex_destroy(&ql->qh_lock);
-
-        ASSERT(ql->qh_nelems == 0);
-}
-
-STATIC void
-xfs_qm_freelist_insert(xfs_frlist_t *ql, xfs_dquot_t *dq)
-{
-        dq->dq_flnext = ql->qh_next;
-        dq->dq_flprev = (xfs_dquot_t *)ql;
-        ql->qh_next = dq;
-        dq->dq_flnext->dq_flprev = dq;
-        xfs_Gqm->qm_dqfreelist.qh_nelems++;
-        xfs_Gqm->qm_dqfreelist.qh_version++;
-}
-
-void
-xfs_qm_freelist_unlink(xfs_dquot_t *dq)
-{
-        xfs_dquot_t *next = dq->dq_flnext;
-        xfs_dquot_t *prev = dq->dq_flprev;
-
-        next->dq_flprev = prev;
-        prev->dq_flnext = next;
-        dq->dq_flnext = dq->dq_flprev = dq;
-        xfs_Gqm->qm_dqfreelist.qh_nelems--;
-        xfs_Gqm->qm_dqfreelist.qh_version++;
-}
-
-void
-xfs_qm_freelist_append(xfs_frlist_t *ql, xfs_dquot_t *dq)
-{
-        xfs_qm_freelist_insert((xfs_frlist_t *)ql->qh_prev, dq);
-}
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
index 91bd053e90b..c9446f1c726 100644
--- a/fs/xfs/quota/xfs_qm.h
+++ b/fs/xfs/quota/xfs_qm.h
@@ -72,17 +72,6 @@ extern kmem_zone_t	*qm_dqtrxzone;
 #define XFS_QM_MAX_DQCLUSTER_LOGSZ      3
 
 typedef xfs_dqhash_t    xfs_dqlist_t;
-/*
- * The freelist head. The first two fields match the first two in the
- * xfs_dquot_t structure (in xfs_dqmarker_t)
- */
-typedef struct xfs_frlist {
-       struct xfs_dquot *qh_next;
-       struct xfs_dquot *qh_prev;
-       struct mutex      qh_lock;
-       uint              qh_version;
-       uint              qh_nelems;
-} xfs_frlist_t;
 
 /*
  * Quota Manager (global) structure. Lives only in core.
@@ -91,7 +80,9 @@ 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 */
-        xfs_frlist_t     qm_dqfreelist;  /* freelist of dquots */
+        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 */
         int              qm_dqfree_ratio;/* ratio of free to inuse dquots */
@@ -177,10 +168,6 @@ 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);
 
-/* list stuff */
-extern void             xfs_qm_freelist_append(xfs_frlist_t *, xfs_dquot_t *);
-extern void             xfs_qm_freelist_unlink(xfs_dquot_t *);
-
 #ifdef DEBUG
 extern int              xfs_qm_internalqcheck(xfs_mount_t *);
 #else
diff --git a/fs/xfs/quota/xfs_qm_stats.c b/fs/xfs/quota/xfs_qm_stats.c
index 83e7ea3e25f..3d1fc79532e 100644
--- a/fs/xfs/quota/xfs_qm_stats.c
+++ b/fs/xfs/quota/xfs_qm_stats.c
@@ -55,7 +55,7 @@ static int xqm_proc_show(struct seq_file *m, void *v)
                         ndquot,
                         xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
                         xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0,
-                        xfs_Gqm? xfs_Gqm->qm_dqfreelist.qh_nelems : 0);
+                        xfs_Gqm? xfs_Gqm->qm_dqfrlist_cnt : 0);
         return 0;
 }
 
diff --git a/fs/xfs/quota/xfs_quota_priv.h b/fs/xfs/quota/xfs_quota_priv.h
index 3a1b9aa763f..3eeee2e591d 100644
--- a/fs/xfs/quota/xfs_quota_priv.h
+++ b/fs/xfs/quota/xfs_quota_priv.h
@@ -40,13 +40,6 @@
 #define XFS_QI_IWARNLIMIT(mp)   ((mp)->m_quotainfo->qi_iwarnlimit)
 #define XFS_QI_QOFFLOCK(mp)     ((mp)->m_quotainfo->qi_quotaofflock)
 
-#define xfs_qm_freelist_lock(qm) \
-        mutex_lock(&((qm)->qm_dqfreelist.qh_lock))
-#define xfs_qm_freelist_lock_nowait(qm) \
-        mutex_trylock(&((qm)->qm_dqfreelist.qh_lock))
-#define xfs_qm_freelist_unlock(qm) \
-        mutex_unlock(&((qm)->qm_dqfreelist.qh_lock))
-
 /*
  * Hash into a bucket in the dquot hash table, based on <mp, id>.
  */
@@ -72,16 +65,6 @@
         !dqp->q_core.d_rtbcount && \
         !dqp->q_core.d_icount)
 
-#define FOREACH_DQUOT_IN_FREELIST(dqp, qlist)   \
-for ((dqp) = (qlist)->qh_next; (dqp) != (xfs_dquot_t *)(qlist); \
-     (dqp) = (dqp)->dq_flnext)
-
-#define XQM_FREELIST_INSERT(h, dqp)     \
-         xfs_qm_freelist_append(h, dqp)
-
-#define XQM_FREELIST_REMOVE(dqp)        \
-         xfs_qm_freelist_unlink(dqp)
-
 #define XFS_DQ_IS_LOGITEM_INITD(dqp)    ((dqp)->q_logitem.qli_dquot == (dqp))
 
 #define XFS_QM_DQP_TO_DQACCT(tp, dqp)   (XFS_QM_ISUDQ(dqp) ? \