xfs: convert the dquot hash list to use list heads

Convert the dquot hash 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>

1 files changed, 2 insertions, 7 deletions

diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
index 6992a67c165a..169b3c24af79 100644
--- a/fs/xfs/quota/xfs_dquot.h
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -33,17 +33,12 @@
  * The hash chain headers (hash buckets)
  */
 typedef struct xfs_dqhash {
-        struct xfs_dquot *qh_next;
+        struct list_head  qh_list;
         struct mutex      qh_lock;
         uint              qh_version;   /* ever increasing version */
         uint              qh_nelems;    /* number of dquots on the list */
 } xfs_dqhash_t;
 
-typedef struct xfs_dqlink {
-        struct xfs_dquot  *ql_next;     /* forward link */
-        struct xfs_dquot **ql_prevp;    /* pointer to prev ql_next */
-} xfs_dqlink_t;
-
 struct xfs_mount;
 struct xfs_trans;
 
@@ -57,7 +52,6 @@ struct xfs_trans;
 typedef struct xfs_dqmarker {
         struct xfs_dquot*dqm_flnext;    /* link to freelist: must be first */
         struct xfs_dquot*dqm_flprev;
-        xfs_dqlink_t     dqm_hashlist;  /* link to the hash chain */
         uint             dqm_flags;     /* various flags (XFS_DQ_*) */
 } xfs_dqmarker_t;
 
@@ -67,6 +61,7 @@ typedef struct xfs_dqmarker {
 typedef struct xfs_dquot {
         xfs_dqmarker_t   q_lists;       /* list ptrs, q_flags (marker) */
         struct list_head q_mplist;      /* mount's list of dquots */
+        struct list_head q_hashlist;    /* mount's 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 */