xfs: use per-filesystem radix trees for dquot lookup

Replace the global hash tables for looking up in-memory dquot structures
with per-filesystem radix trees to allow scaling to a large number of
in-memory dquot structures.

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

1 files changed, 0 insertions, 11 deletions

diff --git a/fs/xfs/xfs_quota_priv.h b/fs/xfs/xfs_quota_priv.h
index 94a3d927d716..6d86219d93da 100644
--- a/fs/xfs/xfs_quota_priv.h
+++ b/fs/xfs/xfs_quota_priv.h
@@ -24,17 +24,6 @@
  */
 #define XFS_DQITER_MAP_SIZE     10
 
-/*
- * Hash into a bucket in the dquot hash table, based on <mp, id>.
- */
-#define XFS_DQ_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \
-                                 (__psunsigned_t)(id)) & \
-                                (xfs_Gqm->qm_dqhashmask - 1))
-#define XFS_DQ_HASH(mp, id, type)   (type == XFS_DQ_USER ? \
-                                     (xfs_Gqm->qm_usr_dqhtable + \
-                                      XFS_DQ_HASHVAL(mp, id)) : \
-                                     (xfs_Gqm->qm_grp_dqhtable + \
-                                      XFS_DQ_HASHVAL(mp, id)))
 #define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
         !dqp->q_core.d_blk_hardlimit && \
         !dqp->q_core.d_blk_softlimit && \