staging/lustre/lov: remove unused OBD methods

Remove the unused OBD device methods:
    lov_brw()
    lov_cancel()
    lov_cancel_unused()
    lov_change_cbdata()
    lov_enqueue()
    lov_extent_calc()
    lov_getattr()
    lov_merge_lvb()
    lov_punch()
    lov_setattr()
    lov_sync()
and their supporting functions.

In lov_iocontrol() remove the unused cases LL_IOC_LOV_SETSTRIPE and
LL_IOC_LOV_SETEA and their supporting functions.
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/lov/lov_internal.h

@@ -168,8 +168,6 @@ static inline void lov_llh_put(struct lov_lock_handles *llh)
 /* lov_merge.c */
 void lov_merge_attrs(struct obdo *tgt, struct obdo *src, u64 valid,
 		     struct lov_stripe_md *lsm, int stripeno, int *set);
-int lov_merge_lvb(struct obd_export *exp, struct lov_stripe_md *lsm,
-		  struct ost_lvb *lvb, int kms_only);
 int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
 		   u64 size, int shrink);
 int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
@@ -207,17 +205,6 @@ void lov_update_set(struct lov_request_set *set,
 int lov_update_common_set(struct lov_request_set *set,
 			  struct lov_request *req, int rc);
 int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx);
-int lov_prep_create_set(struct obd_export *exp, struct obd_info *oifo,
-			struct lov_stripe_md **ea, struct obdo *src_oa,
-			struct obd_trans_info *oti,
-			struct lov_request_set **reqset);
-int cb_create_update(void *cookie, int rc);
-int lov_fini_create_set(struct lov_request_set *set, struct lov_stripe_md **ea);
-int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo,
-		     u32 oa_bufs, struct brw_page *pga,
-		     struct obd_trans_info *oti,
-		     struct lov_request_set **reqset);
-int lov_fini_brw_set(struct lov_request_set *set);
 int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
 			 struct lov_request_set **reqset);
 int lov_fini_getattr_set(struct lov_request_set *set);
@@ -225,8 +212,6 @@ int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
 			 struct obdo *src_oa, struct lov_stripe_md *lsm,
 			 struct obd_trans_info *oti,
 			 struct lov_request_set **reqset);
-int lov_update_destroy_set(struct lov_request_set *set,
-			   struct lov_request *req, int rc);
 int lov_fini_destroy_set(struct lov_request_set *set);
 int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
 			 struct obd_trans_info *oti,
@@ -234,30 +219,6 @@ int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
 int lov_update_setattr_set(struct lov_request_set *set,
 			   struct lov_request *req, int rc);
 int lov_fini_setattr_set(struct lov_request_set *set);
-int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo,
-		       struct obd_trans_info *oti,
-		       struct lov_request_set **reqset);
-int lov_fini_punch_set(struct lov_request_set *set);
-int lov_prep_sync_set(struct obd_export *exp, struct obd_info *obd_info,
-		      u64 start, u64 end,
-		      struct lov_request_set **reqset);
-int lov_fini_sync_set(struct lov_request_set *set);
-int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo,
-			 struct ldlm_enqueue_info *einfo,
-			 struct lov_request_set **reqset);
-int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc,
-			 struct ptlrpc_request_set *rqset);
-int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo,
-		       struct lov_stripe_md *lsm,
-		       ldlm_policy_data_t *policy, __u32 mode,
-		       struct lustre_handle *lockh,
-		       struct lov_request_set **reqset);
-int lov_fini_match_set(struct lov_request_set *set, __u32 mode, __u64 flags);
-int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo,
-			struct lov_stripe_md *lsm,
-			__u32 mode, struct lustre_handle *lockh,
-			struct lov_request_set **reqset);
-int lov_fini_cancel_set(struct lov_request_set *set);
 int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
 			struct lov_request_set **reqset);
 void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
@@ -287,10 +248,6 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmm,
 	       struct lov_stripe_md *lsm);
 int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
 		 struct lov_mds_md *lmm, int lmm_bytes);
-int lov_setstripe(struct obd_export *exp, int max_lmm_size,
-		  struct lov_stripe_md **lsmp, struct lov_user_md *lump);
-int lov_setea(struct obd_export *exp, struct lov_stripe_md **lsmp,
-	      struct lov_user_md *lump);
 int lov_getstripe(struct obd_export *exp,
 		  struct lov_stripe_md *lsm, struct lov_user_md *lump);
 int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count,
@@ -307,8 +264,6 @@ struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size);
 void lsm_free_plain(struct lov_stripe_md *lsm);
 void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm);
 
-int lovea_destroy_object(struct lov_obd *lov, struct lov_stripe_md *lsm,
-			 struct obdo *oa, void *data);
 /* lproc_lov.c */
 #if defined (CONFIG_PROC_FS)
 extern const struct file_operations lov_proc_target_fops;

drivers/staging/lustre/lustre/lov/lov_merge.c

@@ -109,33 +109,6 @@ int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
 	return rc;
 }
 
-/** Merge the lock value block(&lvb) attributes from each of the stripes in a
- * file into a single lvb. It is expected that the caller initializes the
- * current atime, mtime, ctime to avoid regressing a more uptodate time on
- * the local client.
- *
- * If \a kms_only is set then we do not consider the recently seen size (rss)
- * when updating the known minimum size (kms).  Even when merging RSS, we will
- * take the KMS value if it's larger.  This prevents getattr from stomping on
- * dirty cached pages which extend the file size. */
-int lov_merge_lvb(struct obd_export *exp,
-		  struct lov_stripe_md *lsm, struct ost_lvb *lvb, int kms_only)
-{
-	int   rc;
-	__u64 kms;
-
-	lov_stripe_lock(lsm);
-	rc = lov_merge_lvb_kms(lsm, lvb, &kms);
-	lov_stripe_unlock(lsm);
-	if (kms_only)
-		lvb->lvb_size = kms;
-
-	CDEBUG(D_INODE, "merged for ID "DOSTID" s=%llu m=%llu a=%llu c=%llu b=%llu\n",
-	       POSTID(&lsm->lsm_oi), lvb->lvb_size, lvb->lvb_mtime,
-	       lvb->lvb_atime, lvb->lvb_ctime, lvb->lvb_blocks);
-	return rc;
-}
-
 /* Must be called under the lov_stripe_lock() */
 int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
 		   u64 size, int shrink)

drivers/staging/lustre/lustre/lov/lov_pack.c

@@ -403,178 +403,6 @@ int lov_unpackmd(struct obd_export *exp,  struct lov_stripe_md **lsmp,
 	return lsm_size;
 }
 
-static int __lov_setstripe(struct obd_export *exp, int max_lmm_size,
-			   struct lov_stripe_md **lsmp,
-			   struct lov_user_md *lump)
-{
-	struct obd_device *obd = class_exp2obd(exp);
-	struct lov_obd *lov = &obd->u.lov;
-	char buffer[sizeof(struct lov_user_md_v3)];
-	struct lov_user_md_v3 *lumv3 = (struct lov_user_md_v3 *)&buffer[0];
-	struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&buffer[0];
-	int lmm_magic;
-	__u16 stripe_count;
-	int rc;
-	int cplen = 0;
-
-	rc = lov_lum_swab_if_needed(lumv3, &lmm_magic, lump);
-	if (rc)
-		return rc;
-
-	/* in the rest of the tests, as *lumv1 and lumv3 have the same
-	 * fields, we use lumv1 to avoid code duplication */
-
-	if (lumv1->lmm_pattern == 0) {
-		lumv1->lmm_pattern = lov->desc.ld_pattern ?
-			lov->desc.ld_pattern : LOV_PATTERN_RAID0;
-	}
-
-	if (lov_pattern(lumv1->lmm_pattern) != LOV_PATTERN_RAID0) {
-		CDEBUG(D_IOCTL, "bad userland stripe pattern: %#x\n",
-		       lumv1->lmm_pattern);
-		return -EINVAL;
-	}
-
-	/* 64kB is the largest common page size we see (ia64), and matches the
-	 * check in lfs */
-	if (lumv1->lmm_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
-		CDEBUG(D_IOCTL, "stripe size %u not multiple of %u, fixing\n",
-		       lumv1->lmm_stripe_size, LOV_MIN_STRIPE_SIZE);
-		lumv1->lmm_stripe_size = LOV_MIN_STRIPE_SIZE;
-	}
-
-	if ((lumv1->lmm_stripe_offset >= lov->desc.ld_tgt_count) &&
-	    (lumv1->lmm_stripe_offset !=
-	     (typeof(lumv1->lmm_stripe_offset))(-1))) {
-		CDEBUG(D_IOCTL, "stripe offset %u > number of OSTs %u\n",
-		       lumv1->lmm_stripe_offset, lov->desc.ld_tgt_count);
-		return -EINVAL;
-	}
-	stripe_count = lov_get_stripecnt(lov, lmm_magic,
-					 lumv1->lmm_stripe_count);
-
-	if (max_lmm_size) {
-		int max_stripes = (max_lmm_size -
-				   lov_mds_md_size(0, lmm_magic)) /
-				   sizeof(struct lov_ost_data_v1);
-		if (unlikely(max_stripes < stripe_count)) {
-			CDEBUG(D_IOCTL, "stripe count reset from %d to %d\n",
-			       stripe_count, max_stripes);
-			stripe_count = max_stripes;
-		}
-	}
-
-	if (lmm_magic == LOV_USER_MAGIC_V3) {
-		struct pool_desc *pool;
-
-		/* In the function below, .hs_keycmp resolves to
-		 * pool_hashkey_keycmp() */
-		/* coverity[overrun-buffer-val] */
-		pool = lov_find_pool(lov, lumv3->lmm_pool_name);
-		if (pool != NULL) {
-			if (lumv3->lmm_stripe_offset !=
-			    (typeof(lumv3->lmm_stripe_offset))(-1)) {
-				rc = lov_check_index_in_pool(
-					lumv3->lmm_stripe_offset, pool);
-				if (rc < 0) {
-					lov_pool_putref(pool);
-					return -EINVAL;
-				}
-			}
-
-			if (stripe_count > pool_tgt_count(pool))
-				stripe_count = pool_tgt_count(pool);
-
-			lov_pool_putref(pool);
-		}
-	}
-
-	if (lumv1->lmm_pattern & LOV_PATTERN_F_RELEASED)
-		stripe_count = 0;
-
-	rc = lov_alloc_memmd(lsmp, stripe_count, lumv1->lmm_pattern, lmm_magic);
-
-	if (rc >= 0) {
-		(*lsmp)->lsm_oinfo[0]->loi_ost_idx = lumv1->lmm_stripe_offset;
-		(*lsmp)->lsm_stripe_size = lumv1->lmm_stripe_size;
-		if (lmm_magic == LOV_USER_MAGIC_V3) {
-			cplen = strlcpy((*lsmp)->lsm_pool_name,
-					lumv3->lmm_pool_name,
-					sizeof((*lsmp)->lsm_pool_name));
-			if (cplen >= sizeof((*lsmp)->lsm_pool_name))
-				rc = -E2BIG;
-		}
-		rc = 0;
-	}
-
-	return rc;
-}
-
-/* Configure object striping information on a new file.
- *
- * @lmmu is a pointer to a user struct with one or more of the fields set to
- * indicate the application preference: lmm_stripe_count, lmm_stripe_size,
- * lmm_stripe_offset, and lmm_stripe_pattern.  lmm_magic must be LOV_MAGIC.
- * @lsmp is a pointer to an in-core stripe MD that needs to be filled in.
- */
-int lov_setstripe(struct obd_export *exp, int max_lmm_size,
-		  struct lov_stripe_md **lsmp, struct lov_user_md *lump)
-{
-	int rc;
-	mm_segment_t seg;
-
-	seg = get_fs();
-	set_fs(KERNEL_DS);
-
-	rc = __lov_setstripe(exp, max_lmm_size, lsmp, lump);
-	set_fs(seg);
-	return rc;
-}
-
-int lov_setea(struct obd_export *exp, struct lov_stripe_md **lsmp,
-	      struct lov_user_md *lump)
-{
-	int i;
-	int rc;
-	struct obd_export *oexp;
-	struct lov_obd *lov = &exp->exp_obd->u.lov;
-	u64 last_id = 0;
-	struct lov_user_ost_data_v1 *lmm_objects;
-
-	if (lump->lmm_magic == LOV_USER_MAGIC_V3)
-		lmm_objects = ((struct lov_user_md_v3 *)lump)->lmm_objects;
-	else
-		lmm_objects = lump->lmm_objects;
-
-	for (i = 0; i < lump->lmm_stripe_count; i++) {
-		__u32 len = sizeof(last_id);
-		oexp = lov->lov_tgts[lmm_objects[i].l_ost_idx]->ltd_exp;
-		rc = obd_get_info(NULL, oexp, sizeof(KEY_LAST_ID), KEY_LAST_ID,
-				  &len, &last_id, NULL);
-		if (rc)
-			return rc;
-		if (ostid_id(&lmm_objects[i].l_ost_oi) > last_id) {
-			CERROR("Setting EA for object > than last id on"
-			       " ost idx %d "DOSTID" > %lld \n",
-			       lmm_objects[i].l_ost_idx,
-			       POSTID(&lmm_objects[i].l_ost_oi), last_id);
-			return -EINVAL;
-		}
-	}
-
-	rc = lov_setstripe(exp, 0, lsmp, lump);
-	if (rc)
-		return rc;
-
-	for (i = 0; i < lump->lmm_stripe_count; i++) {
-		(*lsmp)->lsm_oinfo[i]->loi_ost_idx =
-			lmm_objects[i].l_ost_idx;
-		(*lsmp)->lsm_oinfo[i]->loi_oi = lmm_objects[i].l_ost_oi;
-	}
-	return 0;
-}
-
-
 /* Retrieve object striping information.
  *
  * @lump is a pointer to an in-core struct with lmm_ost_count indicating