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>
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
index 91bd053..c9446f1 100644
--- a/fs/xfs/quota/xfs_qm.h
+++ b/fs/xfs/quota/xfs_qm.h
@@ -72,17 +72,6 @@
#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 @@
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_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