Client policies do not make much sense to have in client-only code,
so remove all references to everything but fifo.
This also removes lustre/libcfs/heap.c and its header, since it was
only used by certain request policies (crr and orr).

Signed-off-by: Oleg Drokin <gr...@linuxhacker.ru>
---
 drivers/staging/lustre/lustre/include/lustre_net.h | 276 ------------
 drivers/staging/lustre/lustre/libcfs/heap.c        | 475 ---------------------
 drivers/staging/lustre/lustre/ptlrpc/nrs_crr.c     |  40 --
 3 files changed, 791 deletions(-)
 delete mode 100644 drivers/staging/lustre/lustre/libcfs/heap.c
 delete mode 100644 drivers/staging/lustre/lustre/ptlrpc/nrs_crr.c

diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h 
b/drivers/staging/lustre/lustre/include/lustre_net.h
index d6af2ca..5749e1d 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -1183,276 +1183,6 @@ struct nrs_fifo_req {
 /** @} fifo */
 
 /**
- * \name CRR-N
- *
- * CRR-N, Client Round Robin over NIDs
- * @{
- */
-
-/**
- * private data structure for CRR-N NRS
- */
-struct nrs_crrn_net {
-       struct ptlrpc_nrs_resource      cn_res;
-       cfs_binheap_t                  *cn_binheap;
-       struct cfs_hash                *cn_cli_hash;
-       /**
-        * Used when a new scheduling round commences, in order to synchronize
-        * all clients with the new round number.
-        */
-       __u64                           cn_round;
-       /**
-        * Determines the relevant ordering amongst request batches within a
-        * scheduling round.
-        */
-       __u64                           cn_sequence;
-       /**
-        * Round Robin quantum; the maximum number of RPCs that each request
-        * batch for each client can have in a scheduling round.
-        */
-       __u16                           cn_quantum;
-};
-
-/**
- * Object representing a client in CRR-N, as identified by its NID
- */
-struct nrs_crrn_client {
-       struct ptlrpc_nrs_resource      cc_res;
-       struct hlist_node               cc_hnode;
-       lnet_nid_t                      cc_nid;
-       /**
-        * The round number against which this client is currently scheduling
-        * requests.
-        */
-       __u64                           cc_round;
-       /**
-        * The sequence number used for requests scheduled by this client during
-        * the current round number.
-        */
-       __u64                           cc_sequence;
-       atomic_t                        cc_ref;
-       /**
-        * Round Robin quantum; the maximum number of RPCs the client is allowed
-        * to schedule in a single batch of each round.
-        */
-       __u16                           cc_quantum;
-       /**
-        * # of pending requests for this client, on all existing rounds
-        */
-       __u16                           cc_active;
-};
-
-/**
- * CRR-N NRS request definition
- */
-struct nrs_crrn_req {
-       /**
-        * Round number for this request; shared with all other requests in the
-        * same batch.
-        */
-       __u64                   cr_round;
-       /**
-        * Sequence number for this request; shared with all other requests in
-        * the same batch.
-        */
-       __u64                   cr_sequence;
-};
-
-/**
- * CRR-N policy operations.
- */
-enum nrs_ctl_crr {
-       /**
-        * Read the RR quantum size of a CRR-N policy.
-        */
-       NRS_CTL_CRRN_RD_QUANTUM = PTLRPC_NRS_CTL_1ST_POL_SPEC,
-       /**
-        * Write the RR quantum size of a CRR-N policy.
-        */
-       NRS_CTL_CRRN_WR_QUANTUM,
-};
-
-/** @} CRR-N */
-
-/**
- * \name ORR/TRR
- *
- * ORR/TRR (Object-based Round Robin/Target-based Round Robin) NRS policies
- * @{
- */
-
-/**
- * Lower and upper byte offsets of a brw RPC
- */
-struct nrs_orr_req_range {
-       __u64           or_start;
-       __u64           or_end;
-};
-
-/**
- * RPC types supported by the ORR/TRR policies
- */
-enum nrs_orr_supp {
-       NOS_OST_READ  = (1 << 0),
-       NOS_OST_WRITE = (1 << 1),
-       NOS_OST_RW    = (NOS_OST_READ | NOS_OST_WRITE),
-       /**
-        * Default value for policies.
-        */
-       NOS_DFLT      = NOS_OST_READ
-};
-
-/**
- * As unique keys for grouping RPCs together, we use the object's OST FID for
- * the ORR policy, and the OST index for the TRR policy.
- *
- * XXX: We waste some space for TRR policy instances by using a union, but it
- *     allows to consolidate some of the code between ORR and TRR, and these
- *     policies will probably eventually merge into one anyway.
- */
-struct nrs_orr_key {
-       union {
-               /** object FID for ORR */
-               struct lu_fid   ok_fid;
-               /** OST index for TRR */
-               __u32           ok_idx;
-       };
-};
-
-/**
- * The largest base string for unique hash/slab object names is
- * "nrs_orr_reg_", so 13 characters. We add 3 to this to be used for the CPT
- * id number, so this _should_ be more than enough for the maximum number of
- * CPTs on any system. If it does happen that this statement is incorrect,
- * nrs_orr_genobjname() will inevitably yield a non-unique name and cause
- * kmem_cache_create() to complain (on Linux), so the erroneous situation
- * will hopefully not go unnoticed.
- */
-#define NRS_ORR_OBJ_NAME_MAX   (sizeof("nrs_orr_reg_") + 3)
-
-/**
- * private data structure for ORR and TRR NRS
- */
-struct nrs_orr_data {
-       struct ptlrpc_nrs_resource      od_res;
-       cfs_binheap_t                  *od_binheap;
-       struct cfs_hash                *od_obj_hash;
-       struct kmem_cache                      *od_cache;
-       /**
-        * Used when a new scheduling round commences, in order to synchronize
-        * all object or OST batches with the new round number.
-        */
-       __u64                           od_round;
-       /**
-        * Determines the relevant ordering amongst request batches within a
-        * scheduling round.
-        */
-       __u64                           od_sequence;
-       /**
-        * RPC types that are currently supported.
-        */
-       enum nrs_orr_supp               od_supp;
-       /**
-        * Round Robin quantum; the maximum number of RPCs that each request
-        * batch for each object or OST can have in a scheduling round.
-        */
-       __u16                           od_quantum;
-       /**
-        * Whether to use physical disk offsets or logical file offsets.
-        */
-       bool                            od_physical;
-       /**
-        * XXX: We need to provide a persistently allocated string to hold
-        * unique object names for this policy, since in currently supported
-        * versions of Linux by Lustre, kmem_cache_create() just sets a pointer
-        * to the name string provided. kstrdup() is used in the version of
-        * kmeme_cache_create() in current Linux mainline, so we may be able to
-        * remove this in the future.
-        */
-       char                            od_objname[NRS_ORR_OBJ_NAME_MAX];
-};
-
-/**
- * Represents a backend-fs object or OST in the ORR and TRR policies
- * respectively
- */
-struct nrs_orr_object {
-       struct ptlrpc_nrs_resource      oo_res;
-       struct hlist_node               oo_hnode;
-       /**
-        * The round number against which requests are being scheduled for this
-        * object or OST
-        */
-       __u64                           oo_round;
-       /**
-        * The sequence number used for requests scheduled for this object or
-        * OST during the current round number.
-        */
-       __u64                           oo_sequence;
-       /**
-        * The key of the object or OST for which this structure instance is
-        * scheduling RPCs
-        */
-       struct nrs_orr_key              oo_key;
-       atomic_t                        oo_ref;
-       /**
-        * Round Robin quantum; the maximum number of RPCs that are allowed to
-        * be scheduled for the object or OST in a single batch of each round.
-        */
-       __u16                           oo_quantum;
-       /**
-        * # of pending requests for this object or OST, on all existing rounds
-        */
-       __u16                           oo_active;
-};
-
-/**
- * ORR/TRR NRS request definition
- */
-struct nrs_orr_req {
-       /**
-        * The offset range this request covers
-        */
-       struct nrs_orr_req_range        or_range;
-       /**
-        * Round number for this request; shared with all other requests in the
-        * same batch.
-        */
-       __u64                           or_round;
-       /**
-        * Sequence number for this request; shared with all other requests in
-        * the same batch.
-        */
-       __u64                           or_sequence;
-       /**
-        * For debugging purposes.
-        */
-       struct nrs_orr_key              or_key;
-       /**
-        * An ORR policy instance has filled in request information while
-        * enqueueing the request on the service partition's regular NRS head.
-        */
-       unsigned int                    or_orr_set:1;
-       /**
-        * A TRR policy instance has filled in request information while
-        * enqueueing the request on the service partition's regular NRS head.
-        */
-       unsigned int                    or_trr_set:1;
-       /**
-        * Request offset ranges have been filled in with logical offset
-        * values.
-        */
-       unsigned int                    or_logical_set:1;
-       /**
-        * Request offset ranges have been filled in with physical offset
-        * values.
-        */
-       unsigned int                    or_physical_set:1;
-};
-
-/** @} ORR/TRR */
-
-/**
  * NRS request
  *
  * Instances of this object exist embedded within ptlrpc_request; the main
@@ -1487,12 +1217,6 @@ struct ptlrpc_nrs_request {
                 * Fields for the FIFO policy
                 */
                struct nrs_fifo_req     fifo;
-               /**
-                * CRR-N request definition
-                */
-               struct nrs_crrn_req     crr;
-               /** ORR and TRR share the same request definition */
-               struct nrs_orr_req      orr;
        } nr_u;
        /**
         * Externally-registering policies may want to use this to allocate
diff --git a/drivers/staging/lustre/lustre/libcfs/heap.c 
b/drivers/staging/lustre/lustre/libcfs/heap.c
deleted file mode 100644
index bf6d0b9..0000000
--- a/drivers/staging/lustre/lustre/libcfs/heap.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License version 2 for more details.  A copy is
- * included in the COPYING file that accompanied this code.
-
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2011 Intel Corporation
- */
-/*
- * libcfs/libcfs/heap.c
- *
- * Author: Eric Barton <e...@whamcloud.com>
- *        Liang Zhen   <li...@whamcloud.com>
- */
-/** \addtogroup heap
- *
- * @{
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#define CBH_ALLOC(ptr, h)                                              \
-do {                                                                   \
-       if ((h)->cbh_flags & CBH_FLAG_ATOMIC_GROW)                      \
-               LIBCFS_CPT_ALLOC_GFP((ptr), h->cbh_cptab, h->cbh_cptid, \
-                                    CBH_NOB, GFP_ATOMIC);      \
-       else                                                            \
-               LIBCFS_CPT_ALLOC((ptr), h->cbh_cptab, h->cbh_cptid,     \
-                                CBH_NOB);                              \
-} while (0)
-
-#define CBH_FREE(ptr)  LIBCFS_FREE(ptr, CBH_NOB)
-
-/**
- * Grows the capacity of a binary heap so that it can handle a larger number of
- * \e cfs_binheap_node_t objects.
- *
- * \param[in] h The binary heap
- *
- * \retval 0      Successfully grew the heap
- * \retval -ENOMEM OOM error
- */
-static int
-cfs_binheap_grow(cfs_binheap_t *h)
-{
-       cfs_binheap_node_t ***frag1 = NULL;
-       cfs_binheap_node_t  **frag2;
-       int hwm = h->cbh_hwm;
-
-       /* need a whole new chunk of pointers */
-       LASSERT((h->cbh_hwm & CBH_MASK) == 0);
-
-       if (hwm == 0) {
-               /* first use of single indirect */
-               CBH_ALLOC(h->cbh_elements1, h);
-               if (h->cbh_elements1 == NULL)
-                       return -ENOMEM;
-
-               goto out;
-       }
-
-       hwm -= CBH_SIZE;
-       if (hwm < CBH_SIZE * CBH_SIZE) {
-               /* not filled double indirect */
-               CBH_ALLOC(frag2, h);
-               if (frag2 == NULL)
-                       return -ENOMEM;
-
-               if (hwm == 0) {
-                       /* first use of double indirect */
-                       CBH_ALLOC(h->cbh_elements2, h);
-                       if (h->cbh_elements2 == NULL) {
-                               CBH_FREE(frag2);
-                               return -ENOMEM;
-                       }
-               }
-
-               h->cbh_elements2[hwm >> CBH_SHIFT] = frag2;
-               goto out;
-       }
-
-       hwm -= CBH_SIZE * CBH_SIZE;
-#if (CBH_SHIFT * 3 < 32)
-       if (hwm >= CBH_SIZE * CBH_SIZE * CBH_SIZE) {
-               /* filled triple indirect */
-               return -ENOMEM;
-       }
-#endif
-       CBH_ALLOC(frag2, h);
-       if (frag2 == NULL)
-               return -ENOMEM;
-
-       if (((hwm >> CBH_SHIFT) & CBH_MASK) == 0) {
-               /* first use of this 2nd level index */
-               CBH_ALLOC(frag1, h);
-               if (frag1 == NULL) {
-                       CBH_FREE(frag2);
-                       return -ENOMEM;
-               }
-       }
-
-       if (hwm == 0) {
-               /* first use of triple indirect */
-               CBH_ALLOC(h->cbh_elements3, h);
-               if (h->cbh_elements3 == NULL) {
-                       CBH_FREE(frag2);
-                       CBH_FREE(frag1);
-                       return -ENOMEM;
-               }
-       }
-
-       if (frag1 != NULL) {
-               LASSERT(h->cbh_elements3[hwm >> (2 * CBH_SHIFT)] == NULL);
-               h->cbh_elements3[hwm >> (2 * CBH_SHIFT)] = frag1;
-       } else {
-               frag1 = h->cbh_elements3[hwm >> (2 * CBH_SHIFT)];
-               LASSERT(frag1 != NULL);
-       }
-
-       frag1[(hwm >> CBH_SHIFT) & CBH_MASK] = frag2;
-
- out:
-       h->cbh_hwm += CBH_SIZE;
-       return 0;
-}
-
-/**
- * Creates and initializes a binary heap instance.
- *
- * \param[in] ops   The operations to be used
- * \param[in] flags The heap flags
- * \parm[in]  count The initial heap capacity in # of elements
- * \param[in] arg   An optional private argument
- * \param[in] cptab The CPT table this heap instance will operate over
- * \param[in] cptid The CPT id of \a cptab this heap instance will operate over
- *
- * \retval valid-pointer A newly-created and initialized binary heap object
- * \retval NULL                 error
- */
-cfs_binheap_t *
-cfs_binheap_create(cfs_binheap_ops_t *ops, unsigned int flags,
-                  unsigned count, void *arg, struct cfs_cpt_table *cptab,
-                  int cptid)
-{
-       cfs_binheap_t *h;
-
-       LASSERT(ops != NULL);
-       LASSERT(ops->hop_compare != NULL);
-       LASSERT(cptab != NULL);
-       LASSERT(cptid == CFS_CPT_ANY ||
-              (cptid >= 0 && cptid < cptab->ctb_nparts));
-
-       LIBCFS_CPT_ALLOC(h, cptab, cptid, sizeof(*h));
-       if (h == NULL)
-               return NULL;
-
-       h->cbh_ops        = ops;
-       h->cbh_nelements  = 0;
-       h->cbh_hwm        = 0;
-       h->cbh_private    = arg;
-       h->cbh_flags      = flags & (~CBH_FLAG_ATOMIC_GROW);
-       h->cbh_cptab      = cptab;
-       h->cbh_cptid      = cptid;
-
-       while (h->cbh_hwm < count) { /* preallocate */
-               if (cfs_binheap_grow(h) != 0) {
-                       cfs_binheap_destroy(h);
-                       return NULL;
-               }
-       }
-
-       h->cbh_flags |= flags & CBH_FLAG_ATOMIC_GROW;
-
-       return h;
-}
-EXPORT_SYMBOL(cfs_binheap_create);
-
-/**
- * Releases all resources associated with a binary heap instance.
- *
- * Deallocates memory for all indirection levels and the binary heap object
- * itself.
- *
- * \param[in] h The binary heap object
- */
-void
-cfs_binheap_destroy(cfs_binheap_t *h)
-{
-       int idx0;
-       int idx1;
-       int n;
-
-       LASSERT(h != NULL);
-
-       n = h->cbh_hwm;
-
-       if (n > 0) {
-               CBH_FREE(h->cbh_elements1);
-               n -= CBH_SIZE;
-       }
-
-       if (n > 0) {
-               for (idx0 = 0; idx0 < CBH_SIZE && n > 0; idx0++) {
-                       CBH_FREE(h->cbh_elements2[idx0]);
-                       n -= CBH_SIZE;
-               }
-
-               CBH_FREE(h->cbh_elements2);
-       }
-
-       if (n > 0) {
-               for (idx0 = 0; idx0 < CBH_SIZE && n > 0; idx0++) {
-
-                       for (idx1 = 0; idx1 < CBH_SIZE && n > 0; idx1++) {
-                               CBH_FREE(h->cbh_elements3[idx0][idx1]);
-                               n -= CBH_SIZE;
-                       }
-
-                       CBH_FREE(h->cbh_elements3[idx0]);
-               }
-
-               CBH_FREE(h->cbh_elements3);
-       }
-
-       LIBCFS_FREE(h, sizeof(*h));
-}
-EXPORT_SYMBOL(cfs_binheap_destroy);
-
-/**
- * Obtains a double pointer to a heap element, given its index into the binary
- * tree.
- *
- * \param[in] h          The binary heap instance
- * \param[in] idx The requested node's index
- *
- * \retval valid-pointer A double pointer to a heap pointer entry
- */
-static cfs_binheap_node_t **
-cfs_binheap_pointer(cfs_binheap_t *h, unsigned int idx)
-{
-       if (idx < CBH_SIZE)
-               return &(h->cbh_elements1[idx]);
-
-       idx -= CBH_SIZE;
-       if (idx < CBH_SIZE * CBH_SIZE)
-               return &(h->cbh_elements2[idx >> CBH_SHIFT][idx & CBH_MASK]);
-
-       idx -= CBH_SIZE * CBH_SIZE;
-       return &(h->cbh_elements3[idx >> (2 * CBH_SHIFT)]\
-                                [(idx >> CBH_SHIFT) & CBH_MASK]\
-                                [idx & CBH_MASK]);
-}
-
-/**
- * Obtains a pointer to a heap element, given its index into the binary tree.
- *
- * \param[in] h          The binary heap
- * \param[in] idx The requested node's index
- *
- * \retval valid-pointer The requested heap node
- * \retval NULL                 Supplied index is out of bounds
- */
-cfs_binheap_node_t *
-cfs_binheap_find(cfs_binheap_t *h, unsigned int idx)
-{
-       if (idx >= h->cbh_nelements)
-               return NULL;
-
-       return *cfs_binheap_pointer(h, idx);
-}
-EXPORT_SYMBOL(cfs_binheap_find);
-
-/**
- * Moves a node upwards, towards the root of the binary tree.
- *
- * \param[in] h The heap
- * \param[in] e The node
- *
- * \retval 1 The position of \a e in the tree was changed at least once
- * \retval 0 The position of \a e in the tree was not changed
- */
-static int
-cfs_binheap_bubble(cfs_binheap_t *h, cfs_binheap_node_t *e)
-{
-       unsigned int         cur_idx = e->chn_index;
-       cfs_binheap_node_t **cur_ptr;
-       unsigned int         parent_idx;
-       cfs_binheap_node_t **parent_ptr;
-       int                  did_sth = 0;
-
-       cur_ptr = cfs_binheap_pointer(h, cur_idx);
-       LASSERT(*cur_ptr == e);
-
-       while (cur_idx > 0) {
-               parent_idx = (cur_idx - 1) >> 1;
-
-               parent_ptr = cfs_binheap_pointer(h, parent_idx);
-               LASSERT((*parent_ptr)->chn_index == parent_idx);
-
-               if (h->cbh_ops->hop_compare(*parent_ptr, e))
-                       break;
-
-               (*parent_ptr)->chn_index = cur_idx;
-               *cur_ptr = *parent_ptr;
-               cur_ptr = parent_ptr;
-               cur_idx = parent_idx;
-               did_sth = 1;
-       }
-
-       e->chn_index = cur_idx;
-       *cur_ptr = e;
-
-       return did_sth;
-}
-
-/**
- * Moves a node downwards, towards the last level of the binary tree.
- *
- * \param[in] h The heap
- * \param[in] e The node
- *
- * \retval 1 The position of \a e in the tree was changed at least once
- * \retval 0 The position of \a e in the tree was not changed
- */
-static int
-cfs_binheap_sink(cfs_binheap_t *h, cfs_binheap_node_t *e)
-{
-       unsigned int         n = h->cbh_nelements;
-       unsigned int         child_idx;
-       cfs_binheap_node_t **child_ptr;
-       cfs_binheap_node_t  *child;
-       unsigned int         child2_idx;
-       cfs_binheap_node_t **child2_ptr;
-       cfs_binheap_node_t  *child2;
-       unsigned int         cur_idx;
-       cfs_binheap_node_t **cur_ptr;
-       int                  did_sth = 0;
-
-       cur_idx = e->chn_index;
-       cur_ptr = cfs_binheap_pointer(h, cur_idx);
-       LASSERT(*cur_ptr == e);
-
-       while (cur_idx < n) {
-               child_idx = (cur_idx << 1) + 1;
-               if (child_idx >= n)
-                       break;
-
-               child_ptr = cfs_binheap_pointer(h, child_idx);
-               child = *child_ptr;
-
-               child2_idx = child_idx + 1;
-               if (child2_idx < n) {
-                       child2_ptr = cfs_binheap_pointer(h, child2_idx);
-                       child2 = *child2_ptr;
-
-                       if (h->cbh_ops->hop_compare(child2, child)) {
-                               child_idx = child2_idx;
-                               child_ptr = child2_ptr;
-                               child = child2;
-                       }
-               }
-
-               LASSERT(child->chn_index == child_idx);
-
-               if (h->cbh_ops->hop_compare(e, child))
-                       break;
-
-               child->chn_index = cur_idx;
-               *cur_ptr = child;
-               cur_ptr = child_ptr;
-               cur_idx = child_idx;
-               did_sth = 1;
-       }
-
-       e->chn_index = cur_idx;
-       *cur_ptr = e;
-
-       return did_sth;
-}
-
-/**
- * Sort-inserts a node into the binary heap.
- *
- * \param[in] h The heap
- * \param[in] e The node
- *
- * \retval 0   Element inserted successfully
- * \retval != 0 error
- */
-int
-cfs_binheap_insert(cfs_binheap_t *h, cfs_binheap_node_t *e)
-{
-       cfs_binheap_node_t **new_ptr;
-       unsigned int         new_idx = h->cbh_nelements;
-       int                  rc;
-
-       if (new_idx == h->cbh_hwm) {
-               rc = cfs_binheap_grow(h);
-               if (rc != 0)
-                       return rc;
-       }
-
-       if (h->cbh_ops->hop_enter) {
-               rc = h->cbh_ops->hop_enter(h, e);
-               if (rc != 0)
-                       return rc;
-       }
-
-       e->chn_index = new_idx;
-       new_ptr = cfs_binheap_pointer(h, new_idx);
-       h->cbh_nelements++;
-       *new_ptr = e;
-
-       cfs_binheap_bubble(h, e);
-
-       return 0;
-}
-EXPORT_SYMBOL(cfs_binheap_insert);
-
-/**
- * Removes a node from the binary heap.
- *
- * \param[in] h The heap
- * \param[in] e The node
- */
-void
-cfs_binheap_remove(cfs_binheap_t *h, cfs_binheap_node_t *e)
-{
-       unsigned int         n = h->cbh_nelements;
-       unsigned int         cur_idx = e->chn_index;
-       cfs_binheap_node_t **cur_ptr;
-       cfs_binheap_node_t  *last;
-
-       LASSERT(cur_idx != CBH_POISON);
-       LASSERT(cur_idx < n);
-
-       cur_ptr = cfs_binheap_pointer(h, cur_idx);
-       LASSERT(*cur_ptr == e);
-
-       n--;
-       last = *cfs_binheap_pointer(h, n);
-       h->cbh_nelements = n;
-       if (last == e)
-               return;
-
-       last->chn_index = cur_idx;
-       *cur_ptr = last;
-       if (!cfs_binheap_bubble(h, *cur_ptr))
-               cfs_binheap_sink(h, *cur_ptr);
-
-       e->chn_index = CBH_POISON;
-       if (h->cbh_ops->hop_exit)
-               h->cbh_ops->hop_exit(h, e);
-}
-EXPORT_SYMBOL(cfs_binheap_remove);
-
-/** @} heap */
diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs_crr.c 
b/drivers/staging/lustre/lustre/ptlrpc/nrs_crr.c
deleted file mode 100644
index ddfb510..0000000
--- a/drivers/staging/lustre/lustre/ptlrpc/nrs_crr.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License version 2 for more details.  A copy is
- * included in the COPYING file that accompanied this code.
-
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2011 Intel Corporation
- *
- * Copyright 2012 Xyratex Technology Limited
- */
-/*
- * lustre/ptlrpc/nrs_crr.c
- *
- * Network Request Scheduler (NRS) CRR-N policy
- *
- * Request ordering in a batched Round-Robin manner over client NIDs
- *
- * Author: Liang Zhen <li...@whamcloud.com>
- * Author: Nikitas Angelinas <nikitas_angeli...@xyratex.com>
- */
-/**
- * \addtogoup nrs
- * @{
- */
-- 
1.9.3

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